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Author Topic: Qatar - 2 b - my first exoplanet transit  (Read 2164 times)

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Offline Einari

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Qatar - 2 b - my first exoplanet transit
« on: 11:05:08, 05 April, 2014 »
Finally I made it!
Have made some poor attempts before and recently more successful photometry with fast variable stars.
Most difficult was to get proper data/graph out of images but in the end found suitable (free) software and help to use it.

Some info:
My target was Qatar -2 b in Virgo. It's magnitude 13 and during 108.6 min transit it dips 0.0374 magnitude.
Here's some more info:
http://exoplanet.eu/catalog/qatar-2_b/
http://var2.astro.cz/ETD/etd.php?STARNAME=Qatar-2&PLANET=b

I used my C8 @ 6.3, Idas LPS filter and SXV-694 camera binned 2.
Took 195 exposures, 30s each and then 30s pause (made as small script for it in AstroArt 5).

Preprocessed (and saved ) the images in AstroArt 5, and then used free photometry software Fotodif to analyze the data.
http://www.astrosurf.com/orodeno/fotodif/index.htm
It's spanish but software has also english option.

So here's first my light curve.
As you can see in the end the seeing got worse.



Here's another graph:

Tapio

Celestron C8, C9.25" & Hyperstar, iOptron CEM60-EC, TS 80 triplet,  Coronado PST, SXV-694,  ASI120MM/ASI174MC Cool

Offline Nomis Elfactem

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Re: Qatar - 2 b - my first exoplanet transit
« Reply #1 on: 15:35:02, 05 April, 2014 »
That's really great science Tapio and all from an amateur rig.... great work !!

S.
Simon

Scopes: Astro-Tech AT-111EDT Triplet, TS65ED Quad, Orion ST80, Modded PST-90 Solar Scope, PST Cak (on loan)
Cameras: SXVF H694, Atik 16ic, Canon EOS 600d, DMK41, DMK21, QHY 5L-II (mono & colour)
Accessories: SX USB Filter Wheel, SX OAG, Baader LRGB Ha SI OII Filters, SharpSky Focuser
Mount: EQ6 (EQMOD), SW Star Adventurer, plus a lot (and I mean a lot) of other bits and pieces

 

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