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發表於 2008-8-15 14:18 | 只看該作者

Exoplanet transit observation - WASP-2

This one (mag 11.7) isn't as significant as HD189733 (mag 7.6), I probably need a much longer exposure to increase SNR while keeping the linearity.

Calibrated with two internal standards.

Data:

Period days 2.1522260
Time of periastron HJD 2454008.7320500
Orbital eccentricity none
Argument of perihelion deg 90.000
Velocity half-amplitude m s^-1 155.000
Planetary mass M_Jup 0.842 ---
Stellar mass M_Sun 0.79 ---
Stellar T_eff Kelvin 5200 ---
Planetary T_eff Kelvin 1182 ---
Stellar Radius R_Sun 0.780 ---
Measured Planetary Radius R_Jupiter 1.038 ---
T_circ (w/o core) Gyr 0.036 ---
T_damp (w/o core) Gyr +Inf ---

All data was reduced with IRIS.

WASP-2 photo.jpg (130.12 KB)

WASP-2 photo.jpg

WASP-2 lightcurve S1 aug 14.JPG (66.72 KB)

WASP-2 lightcurve S1 aug 14.JPG

WASP-2 lightcurve S2 aug14.jpg (72.82 KB)

WASP-2 lightcurve S2 aug14.jpg

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發表於 2008-8-15 17:43 | 只看該作者

總算有規律性起伏!!! 唔錯!!!

個人生態資訊網站：http://butterfly.hk

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發表於 2008-8-15 17:48 | 只看該作者

今晚optimize左套setup, 再practice多次, 琴晚guiding 唔係好準...

Tonights target: TrES-3

:big_smile

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發表於 2008-8-16 00:02 | 只看該作者

原帖由 sn-10 於 2008-8-15 17:48 發表
今晚optimize左套setup, 再practice多次, 琴晚guiding 唔係好準...

Tonights target: TrES-3

:big_smile

加油!!!! 外星人等緊你!!! 我地火星人都好期待!!!:u_18

個人生態資訊網站：http://butterfly.hk

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發表於 2008-8-16 08:52 | 只看該作者

:g17 :g17

http://osastrolog.blogspot.com