Archive | December 2011

Examples of Data Processing Glitches in Q3

Now that we’re in the thick of Quarter 3, there’s new data glitches popping up in the data unique to Quarter 3. Below are  some examples of glitches to watch out for when classifying  that were  likely introduced during the processing of the raw data to remove instrumental effects. These glitches look like big V-shapes either getting brighter then fainter or getting fainter then brighter. Another type that you might see is what looks like a chunk of the light curve (more than about 20 points) that are offset either up or down compared to the rest of the light curve. These are not due to a transiting planets, and ignore that they are there when looking through the rest of the light curve for transits. A good clue that what you’re seeing might be a glitch due to the data processing is if the large V-shape or large offset datapoints comes before or after a gap in the data.

The gaps in the light curves are not caused by transiting exoplanets. They are spots where we have no data in the star’s light curve. This is caused by Kepler not observing (either because the spacecraft entered safemode or it is rotated back towards Earth to beam the observations to the ground)  or by the data being bad (likely due to a cosmic ray hitting the detector and saturating it)

Happy Hunting,

~Meg

Przykłady problemów z danymi w trzecim kwartale

Przeglądając dane z trzeciego kwartału (Q3), można natknąć się na kilka nowych, niespotykanych wcześniej problemów z danymi. Poniżej przedstawiam kilka przykładów zakłóceń, jakie można napotkać podczas klasyfikacji. Powstały one najprawdopodobniej w procesie przetwarzania danych, mającym na celu wyeliminowanie błędów aparatury. Zakłócenia te na wykresie wyglądają zwykle jak duża litera V. Ich jasność najpierw maleje, a potem rośnie lub na odwrót – najpierw rośnie, a potem maleje. Inny rodzaj zakłócenia, jaki może się pojawić, wygląda jak fragment krzywej blasku (dłuższy niż ok. 20 punktów) przesunięty w dół lub w górę wzgledem reszty wykresu. Efekty te nie są spowodowane tranzytami planet i należy je ignorować podczas poszukiwań tranzytów w pozostałych częściach wykresu. Po czym można łatwo rozpoznać zakłócenie? Zwykle opisane kształty V i przesunięcia wykresów pojawiają się przed lub po lukach w wykresie.

Luki w krzywych blasku nie są spowodowane tranzytami planet pozasłonecznych. To fragmenty, na temat których nie posiadamy danych.Mogą one wynikać z przerw w prowadzeniu obserwacji przez Teleskop Kepler (który funkcjonował akurat w trybie bezpiecznym albo wykonywał obrót w kierunku Ziemi w celu przesłania danych) lub z niskiej jakości danych (najprawdopodobniej za sprawą kosmicznego promieniowania padającego na detektor).

Udanych łowów!

Happy Holidays

Happy Holidays from everyone on the Planets Hunters team.  In that spirit, we thought we’d shared this:  Santa in the Era of Kepler (courtesy: Joe Llama, St Andrew). Has anyone spotted that signal in the light curves?

Each day this month, the Zooniverse has revealed a new gift on the Zooniverse Advent Calendar. Last year, Planet Hunters was hiding behind one of the doors for the launch of the site. This year here were the Planet Hunters themed gifts.

In case you missed them:

Day 1: Planet Hunters Anniversary Competition (we’ll finish announcing the winners in the next week or so)

Day 6: Word Planet

Day 13: LOLCats

Day 15: Planet Hunters Alpha

Day 20: A Planet Hunters themed cocktail anyone? If not, try one of the other Zooniverse themed cocktails.

And be sure to check out tomorrow as the last door opens on the Advent Calendar.

Wishing you a very Merry Solstice and Happy Holidays from us to you. 

Kepler Science Conference Part 5

Today’s  blog is a guest post  by fellow Planet Hunter and frequent contributor on PH Talk, Daryll (nighthawk_black)  who also attended the Kepler Science conference. This is Part 2 of a two part blog post summarizing the Kepler Science Conference sessions. You can find lots more of his pictures chronicling the conference here.

SESSION D – EXOPLANET THEORY

  • Another PH favorite topic of discussion was covered here with exomoon theory and some possible findings, see more here  by Darren Williams. Will we find an Earth sized exoplanet with an Earth sized exomoon, orbiting a massive gas giant or brown dwarf–in a circumbinary system..?
  • Also promising was a talk on possible detection of strange and exotic phenomenon distinct from ‘standard’ transits by Benjamin Bromley. Across such a diversity of planetary systems, I’m confident there are some intriguing finds we’ve yet to realize or recognize; some possibly in cataclysmic systems.
  • This session concluded with a lunchtime presentation by Martin Still and Tom Barclay about the revised KGO software package PyKE, includes tools for dealing with possible contamination and other flux related issues that come up when doing analysis of FITS data. I highly recommend any of you Planethunters that are interested in that sort of thing to mosey over to this website and take a look, feedback is welcome and encouraged!

SESSION E · GIANT PLANETS AND PLANET ATMOSPHERES

  • Sara Seager led off this session and went into giant exoplanet atmospheres. It’s amazing how much we can detect–even if sometimes circumstantial–about an object that 99% of the time we are only inferring the presence of and not resolving visually.  Similar such tactics obviously have diminishing returns when applied to the sub-Neptunes and Super-Earths, but not unfeasible. This sort of research will lay the groundwork for later studies that will surely make use of more advanced orbiting instruments that follow Kepler. Sara also held a public forum on the exoplanet hunt and possibilities for life on Wednesday night, which gave us an excuse to sneak over to the SETI Institute, which is tucked right near NASA-Ames! Lots of very thoughtful and positive comments and questions by the Bay area crowd in attendance.
  • What predominant formation methods produced all these strange star systems?
  • Be watching for an app coming to a market near you: the Kepler Data Visualizer, where you can compose and produce your own exoplanet systems!
  • Expanded details on two bizarre cataloged systems: the badly misaligned Kepler-2b by Josh Carter and KOI-13.01 found orbiting a high-mass fast-rotating star, by Jason Barnes.
  • Are some sub-Neptunes or indeed even some Super-Earths (or MOST?) in fact the evaporated or otherwise badly abused ancient cores of former giant exoplanets?
  • We’ve seen lot’s of ‘hot Jupiters’ so far–what will we have to compare with on an extended mission that will catch additional transits of big bodies at longer periods? Truly, how packed are some of these larger star systems? Is the configuration of our solar system, common, uncommon, or even rare..?
  • Brown Dwarfs. What can I say here? Everything about these objects is mysterious and very cool! I do wonder how many of them or their cousins are out there in the dark between stars…

SESSION F – ECLIPSING AND INTERACTING BINARIES

  • Kicked off by another figure well familiar to many of us by name here at PH in the form of Andrej Prsa of Villanova University, who keeps up the detailed  Kepler Eclipsing Binary Catalog . Of the Kepler EB’s: “This is a gold mine and treasure trove for astrophysics!”
  • Don’t miss discussion in this session of what has been temporarily dubbed ‘The Thing!’! KOI-54 is also worthy of mention here with its eccentricity and powerful tidal pulsations.
  • The EB count appears to grow as one travels towards the galactic center.
  • I learned there are far, far more faint (but somewhat resolvable) stars in the FOV than I ever realized, many of which are not never actively targeted. Properly screening and confirming all these candidate exoplanets is such a monumental task for everyone, and much of it starts right at the pixel level, looking for dirty rotten contaminators!
  • Many cutting edge tools needed to properly analyze and solidly characterize some of the amazing EB’s pouring into the catalogs from Kepler’s eyes have yet to be fully developed and matured, and the community is playing catch up as I write this. The Eclipsing Binary hunt is open season all year, and needs more participants! Identifiny all of the EB’s possible will help everyone vet candidates a little more quickly.
  • Great discussion of the ‘BEER’ method by Prof Tsevi Mazeh for detecting non-eclipsing binary systems. It involves beaming ellipsoidal and reflection effects c/t Kepler light curves and has had solid results so far.

SESSION G – H · STELLAR ACTIVITY, ASTEROSEISMOLOGY  & RED GIANT OSCILLATIONS

  • ‘Our Sun is Not A Solar-like Star’; this was a line I couldn’t help thinking about several times during these sessions on asteroseismology related topics and the challenge to understand host stars completely when we are still grappling with an incomplete understanding of our own Sun’s. I think it is possible asteroseismology will see the most massive benefit from mission out to 2018 considering the apparent nature of solar cycles. I heard someone mention in the hallway at one break: ‘You can’t truly know your exoplanet until you know its star…” Very true!
  • See talks by Lucianne Walkowicz and Svetlana Berdyugina in this session w/ details and models on starspots. In some cases these seem t/b highly recognizable in light curves, on much larger sizes than what we see on the Sun. Exact rotation data for each host star is understandably incomplete at this time. In my opinion these were two of the more valuable presentations at KSC for both new and old members of the Planethunters project, as this is a form of intrinsic variability that can try and masquerade as more interesting things like transits the odd time–be sure to check it out!
  • Also noteworthy were reviews of LC features we see commonly in the form of stellar flares and apparent outbursts (especially those around G-type stars!) Amazing we can track some of these violent expenditures over long cadence data and not just short–consider the size/duration of the average big publicized SOHO events. Someday, the first of our long legged interstellar probes will need to be well shielded against these if they’re going to venture in for a close reconnaissance!
  • Apologies as I missed several talks in the above sessions so this is incomplete, and of course for any errors, omissions or misinterpretations I’ve left behind in any of the material above.

Conclusions?

In my opinion the cost of operating Kepler at 110% until it’s too tired to see anymore is without question worth the astounding potential it holds for all realms of astronomy. Even more amazing things could be done when TESS and Gaia come on line (and perhaps EXOSTATs, or TPF2.0…?), all combined with improved ground based networks for follow up. Given the steady stream of current discoveries, the first extension should be approved.

The quick vote held on the final day of talks seemed to call overwhelmingly for two years from now as a tentative date for a re-assessment conference…unless there is an need to call it early and we find ourselves back on the road down to San Jose again in 2012…

We shall see!

Kepler Science Conference Part 4

Today’s  blog is a guest post  by fellow Planet Hunter and frequent contributor on PH Talk, Daryll (nighthawk_black)  who also attended the Kepler Science conference. This is Part 1 of a two part blog post summarizing the Kepler Science Conference sessions.

Hi Planet Hunters!

Finally off the road and home from KepSciCon! It was an absolute thrill for Tom, Kian and I to break from routine and sit in on a week of talks and presentations by so many members of the professional astronomical community who are sorting out thousands of exoplanet candidates from the Kepler data. First off a big thanks to NASA-Ames and the Kepler Team for being such gracious hosts and also for making available online all of the interesting session talk videos and other materials right away. Thanks as well to Meg Shwamb for inviting me to share some notes from this rather historic first gathering.

Kepler is continuing to pay dividends–and then some. I tried to pick out a few items from each of the session themes that seemed most relevant to staring at hundreds of light curves–this was extremely difficult as all of it was very, very interesting! On the other hand a complete and uncut edition of my cliffs from KSC looks like a bad draft for a stellar version of ‘War & Peace’. Really I think we’ve just barely scratched the surface of what the Kepler data has to offer. So many interesting things came up that aren’t inculded below I really recommend checking out some of the web archive. I suspect, that once you watch a few of the linked videos on these blogs you will end up  watching them all!

Let me tell you: there was a lot of excitement in the room when Bill Borucki took the stage Monday morning to announce  Kepler-22b to us!

Natalie Batalha  followed up with more on K-22b and other key Kepler Objects of Interest like K-11, K-16 & K-19. Meg has also done a good summary regarding the details in her blog. I won’t expand on -22b, save to note it was fun to watch that buzz grow into thousands of news stories, online articles and late night  spoofs over the five days following the bean-spilling. Whatever the final outcome on -22b’s habitability prospects, it’s good to see the public getting jazzed up about exoplanets. This is just the first of many worlds that will swell the future HZ catalog, after all!

SESSION A – KEPLER MISSION AND EXOPLANET STATISTICS.

  • Several talks out of the gates involving data from CoRoT (en français: COnvection ROtation et Transits planétaire) and their 3000+ transit detections across two fields of view in different galaztic areas (a cool detail I’d somehow missed before) I wonder what its ultimate tally will tell us about the distribution of exoplanet populations and their characteristics in different latitudes and environments of the Milky Way?
  • A lot of  impressive information from Jon Jenkins and other presenters on how the PDC-MAP (or ‘pipeline’) is ever evolving in its examination of the growing mass of data, and how the greatest value there will be tapped by allowing it to ‘chew’ over that data through maximum ‘full yield’ extended mission. Securing the full extended mission was mentioned repeatedly at the conference and is the obvious requirement to maximize advancement across multiple fields of study; a nominal mission would run through 2016 and possibly longer assuming no serious degradation of Kepler’s ability to phone home.
  • Many encouraging details about various improvements and refinements within the Kepler Input Catalog, which holds parameters for most stars hosting known or suspected exoplanets in the FOV; this s key for most estimations derived for exoplanet values of mass, radius, and other key characteristics.
  • Found in this session as well is Meg’s presentation for Planethunters.org and the two exoplanets detailed in the first PH reviewed paper. Everyone who contributed to this project since inception should be very proud of those results!
  • Excellent talk about follow up results from the infrared space-based Spitzer telescope, some of which indicate the false positive rate within the current candidate list is very low–possibly under 10%!
  • Big potential for the 747 jumbo jet-based SOFIA telescope to add to the ‘ground based’ follow up observation capability for KOI’s, as well as HUGE potential in the way of upcoming space borne observatories like TESS (Transiting Exoplanet Survey) and multi-band suited GAIA from the ESA. I found TESS particularly interesting because it will survey many stars in our own immediate solar neighborhood for transits!
  • This session was followed up by a lunchtime review of the possible consequences of the proprietary data period ending in second half of 2012–Meg touched on this earlier and I think we will continue to see exciting prospects for collaboration and growth within our community as we move into the New Year.

SESSION B – SUPER-EARTH AND SUB-NEPTUNE SIZE PLANETS

  • We don’t have any good analogs or even a close relative to worlds like these in our own solar system, so understanding them and understanding why we don’t have any here is of great importance.
  • Fascinating theoretical possibility of a new locales for liquid water, tucked away inside puffed up sub-Neptunes, given by Leslie Rogers.
  • Good case studies on BLENDER the super-CPU modeler which we’ve seen discussed on PH Talk before. I wasn’t aware it had assisted a majority of the confirmed Super-Earths and sub-Neptunes on the lists to date!
  • Multitude of great talks on the wild and varied potential nature of Super-Earth and sub-Neptune environments, plus brief review of differing theoretical evolutionary paths for these bodies by Geoff Marcy, Andrew Howard and many others.
  • Check also the MEarth  project w/ Courtney Dressing; this intriguing survey is hunting exoplanets around smaller stars like M-dwarfs & should produce good results on its bottom line.
  • See Jill Tarter of SETI on ‘eta-Earth’ analogs and the reactivation of the powerful Allen Array (also known as the 1 Hectare Telescope) with its epic, massive Field Of View in north-eastern California, thanks to new funding sources. Good timing!

SESSION C – MULTIPLE PLANET SYSTEMS

  • Awesome lead off presentation by Jack Lissauer: ‘Most Kepler multi-planet KOI’s are real and NOT false positives!’ More details on K-11, K-16 & K-20, amongst others included here.
  • Surely one of the best lines of the conference from David Ciardi, likening the massive flood of new Kepler data to being hit with a fire-hose full blast–or perhaps pepper spray!
  • Lot’s of good stuff about wildly different orbital eccentricities and other features found on some confirmed systems and KOI’s, many of which make our solar system look positively mundane in contrast. Also highlighted here were several new techniques being refined to deal with figuring quasi-period or variable transiting exoplanet models; some we’ve seen or discussed on PH Talk like TTV (Transit Timing Variation).
  •  I think longer period exoplanets will continue to be inferred in some systems where we already see multiple exoplanets transiting, this will probably add new questions c/t crazy range of possible configurations and packing we’ve already documented.
To be continued…

Happy B-day PlanetHunters!

It’s hard to believe that the first year has flown by and I would like to thank you and congratulate you on your many successes!  You may not realize it, but you are becoming famous among professional astronomers who appreciate the power of networked citizen scientists.  The total time that you all spent collectively analyzing light curves in the past year adds up to more than 100 years!

In the last year we’ve seen:

  • improvements in the usability of the site
  • growth in the number of users:  there are now more than 70,000 PlanetHunters!
  • increases in the data content: from 1 month to 4 months of light curve data
  • publication of one paper with PlanetHunters users as co-authors – the Kepler computer algorithms are good, but you are discovering planets that the computers miss.

There are some big changes ahead.  NASA and the Kepler team will be accelerating the release of data into the public archives. By this time next year, we expect that the length of the time series light curves on the PlanetHunters site will more than quadruple.  At this point will will be receiving the data almost real-time!

I would also like to thank the Kepler team. The Kepler spacecraft was launched in March 2009 and although the nominal mission ends in 2012, the spacecraft will continue to beam data back to Earth until 2015. However, financial pressures have already resulted in cuts to the Kepler science team. It’s not clear that anyone will be left after next year to receive the messages that Kepler is sending back about planets in Earth-like orbits. Whatever happens, the Kepler team has profoundly changed our understanding of the Universe and I know that I speak for the more than 70,000 PlanetHunters in thanking them for their dedication and hard work.

The Kepler Science Conference Part 3

This guest post is by fellow Planet Hunter and frequent contributor on PH Talk, Kian (Kianjin)  who attended the Kepler Science Conference. Some photos courtesy of Tom (Tom128)

For any exoplanet junkie, sitting in a packed room with over 500 planetary scientists geeking out over light curves is probably asking for an OD. And If I thought that the Planet Hunter community was full of obsessive compulsive nerds, then it was reassuring to find that professional Planet Hunters were just the same, but even more so. These are exceptionally smart people, much more intense and driven, and very fond of bad Star Trek jokes. These are the people I like. Our kind of people. We should be totally at home here.

Obviously there is a lot of planetary science here. In fact there is so much of this that they had to keep each session short. But that’s not so bad, all the details are in the paper which you can download, the change in scene every 15 minutes was welcome too, and the brisk pace kept people engaged. The concise nature of each talk meant fewer equations and graphs, capped off by a one slide take-home message – all very well for noobs like me.

Apart from the science, and there was a lot of that, I was quite thrilled to be here among the scientists, all of whom I knew only from their names on the papers they wrote. Sitting near me on the very first day were Jack Lissauer, Wiliam Welsh and Sara Seager. I would have asked for autographs but I didn’t really want to be that much of an exoplanet groupie. Instead I logged onto PlanetHunters.org on my laptop (and would you believe that half the scientists at the conference also had laptops and were also feverishly typing into them?), found a few new light curves being discussed by fellow Planet Hunters and marked them for discussion. Light curves are like holy icons for planetary scientists. Walk up to one and show them an unusual light curve and they’ll drop all banter and get extremely serious. I managed to get a few priceless interpretations of some of the funkier ones, like the giant EB that TonyJHoffman found, a humongous 5-day eclipse that Jon Jenkins thought was not a data artifact.

Me With Jon Jenkins

Some personal highlights of the past few days:

Bill Borucki talking about the history of the entire mission, all the setbacks and the desperate fight to get it approved; how it was originally named FRESIP, but it took Carl Sagan to coin the wonderful name Kepler for it. And of course, he ended with the announcement of Kepler-22b. After his talk, the entire room broke out into a long and sustained applause in appreciation of the man who made it all possible. I think he must have been quite moved.

Bill Borucki announcing Kepler-22b.

Spotting Frank Drake all by himself during lunch drinking a cup of green coffee, and I wished I’d worn the t-shirt with his famous equation, but I dragged Tom and Daryll over for a photo op. For Dr Drake I’m willing to let my inner groupie come out.

With Dr Frank Drake. 

Meeting our very own and very talented Meg Schwamb in person and being there for her talk on the Planet Hunters Project. Yes, that’s finally our 15 minutes of fame among the rocket scientists. Meg’s a lot more feisty and formidable in real life than online, seeing the way she handled some pretty vigorous questioning at the end of her talk.

Meg introducing Planet Hunters

Finally, the most unexpected experience was to find myself standing in the line for the bathroom when I realized that the youngish man before me was Andrej Prsa. I started some small talk but realized it would be too inappropriate to ask him about some of the more bizarre EBs I’ve seen on Planet hunters. That will have to wait until after his talk on Thursday. See photo below!

Andrej Prsa looking at a light curve

So all in all, it was a very exciting and memorable event for everyone. Great science and talks by some of the best minds on planetary science all in one place. You should make an effort to come the next time. And bring those t-shirts for the autographs.

The First Kepler Science Conference Part 2

This guest post is by fellow Planet Hunter and frequent contributors on PH Talk, Tom (Tom128)  who attended the Kepler Science conference.

Having just returned home after the “First Kepler Science Conference”, I have some good news to share with our Planet Hunters members. There is a high likelihood for a second conference in two years time, so start making plans to attend. It was simply a high energy atmosphere, cutting edge assembly of some of the best and brightest minds trying to get their heads around what Kepler is doing to astronomy in general and astrophysics in particular which is nothing short of a revolution. Maybe we can call it a singularity of astronomical assets all working together trying to fathom what the Kepler data is revealing.  Planet Hunters is one of those assets as Kepler cannot look at each individual light curve.

It was a great pleasure meeting with other Planet Hunters such as Meg Schwamb of the PH science team and of course Kianjin and Nighthawk_black. What was originally billed as five half day sessions morphed into eight hour days or more by the start of the conference. Everyone wanted to have their 15 minutes of fame and for good reason. There are some exciting planets being discovered such as Kepler- 22b or the new class of “Heartbeat” stars. Meg did an outstanding job presenting for Planet Hunters and I encourage you all to visit the Kepler site to view her presentation online as well as the other speakers at the conference. You will not be disappointed.

My biggest take away from the conference was just how much our work at Planet Hunters is appreciated by the Kepler science team. Bill Borucki,  who heads the Kepler mission, said that he is thrilled about what Planet Hunters is doing. We heard this theme again and again from many of the Kepler co-team members.

Let’s classify some more light curves!

The First Kepler Science Conference

Greetings from the Cleaveland airport, I’m on my way back to Yale from California. This past week I’ve been attending y the First Kepler Science Conference at NASA Ames Research Center in Moffett Field, California. It has been a full week of talks and posters on extrasolar planets, planet formation, and stellar astrophysics with emphasis on results from Kepler.

I gave a talk in the Kepler mission and exoplanet statistics session presenting Planet Hunters and our first results. My talk and the entire conference was recorded and the videos are available to view here.

There were lots of interesting talks highlighting what a treasure trove the Kepler data set is. The Kepler team announced the detection of over 2,000 planet candidates identified in the first five quarters of Kepler observations and the discovery of Kepler’s first confirmed planet (Kepler 22-b) orbiting in the habitable zone of a solar-type star. The habitable zone has been dubbed the goldilocks zone because it’s the region around the star where it not too hot and not too cold for liquid water to exist.  So if Kepler-22b is rocky it might have liquid water on its surface, but we don’t currently have a good mass estimate for Kepler-22b so we don’t know what its composition is.  Kepler-22 b is bigger than the Earth, with a radius of 2.4 times the radius of the Earth. It orbits its star every 290 days, so the Kepler team has just been able to see three complete transits of the planet.Kepler 22-b was called the Kepler team’s “Christmas Planet” says Kepler principal investigator (PI)  Bill Borucki because one of the transits occurred near Christmas.  You can find out more about Kepler-22b here and view the light curve here.

In other exciting new, lots more data and possible planets are coming our way in the next year. The new public release schedule for Kepler data was presented on the first day of the conference. Quarters 4, 5, and 6 (spanning observations fromDec 2009-Sep 2010) will be released on Jan 7, 2012. Quarters 7, 8, and 9 (Sep 2010-Jun 2011) will be released on Jul 28, 2012. Quarters 10, 11, 12, and 13 (Jun 2011-Jun 2012) will be released on Oct 28, 2012. There’s bound to be interesting and new things waiting to found as we add and more.

Past the nominal misson, if the mission is renewed, the Kepler data will no longer have a proprietary period. If NASA awards funding for an extended mission, then beyond November the Kepler light curves will be made available to public as soon as the raw data is downloaded from the spacecraft and processed through the Kepler data processing pipelines. This is going to be an exciting prospect for the exoplanet community and  for Planet Hunters.

Fellow zooites and Planet Hunters Daryll  (nighthawk_black), Kian (kianjin), and  Tom(Tom128) attended the conference too. They’ll each be guest bloggers in the up coming weeks to share their impressions and highlights of the conference.

From left to right: Kian, Tom, and Daryll

Happy Hunting,

~Meg

Anniversary Competition Winners Round 1

It’s amazing how fast the year has gone by. It only seems like it was last December, and we were just getting ready to launch Planet Hunters. To celebrate our first year birthday, we’re hosting a give away competition. This is our small way of saying thank you for all of your clicks and support over the past year. All you need to do is log in and classify light curves- and you will be instantly  registered for the drawing. Each day between now and December 16th, we’ll pick a name from the day’s classifiers.

I’m happy to announce the first four winners from our drawing:

December 1st –  Lukasz Lupa prize – prize: Planet Hunters poster

December 2nd-  Garry Williams – prize: Planet Hunters mug

December 3rd – Frank Barnet – prize: Planet Hunters mug

December 4th – Mattijis Weggen – prize: Planet Hunters poster

Congratulations to all the winners. We’ll keep selecting winners daily from now until December 16th. Good luck and Happy Hunting,

~Meg