David's Astronomy - Extrasolar Planet Stars (original) (raw)

Transit Detection Attempt, 2005-08-08
- 4h 20m session attempting to record the transit of extra solar planet HD 209458b across its sol HD 209458 (Osiris)
- 552 images were recorded over a period of 3h 50m (15 sec exposures through V filter)
- Inconsistent sky conditions and deteriorating sky conditions with cloud after 01:00 h UT reduced data quality.
- A description of the attempt and results has been compiled.
- Analysis suggests an overall dimming of ~ 0.01 mag during the time of the transit, but this is unfortunately within the
uncertainty range of the measurement (typically +/- 0.01 to +/- 0.02 mag). Detection of the dimming event was also compromised by having insufficient data prior to ingress and deteriorating sky conditions around the time of egress.

ADS 16402 (Lacerta)
Using small automated telescopes in Arizona and Hawaii, the HATNet project has detected an object transiting one member of the double star system ADS 16402 AB. This system is a pair of G0 main-sequence stars with age about 3 Gyr at a distance of ~139 pc and projected separation of ~1550 AU. The transit signal has a period of 4.46529 days and depth of 0.015 mag.
ADS 16402 (Lacerta) Alt Name : B+37 4734 / HAT-P-1
CCD Image 5 x 30s exposure (average combine), 2x2 binning, C Filter 2006-10-22 19:26h UT (#148054-58)
BBC Report Science Paper

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HAT-P-2 (HD 147506), Parent Star to Exosolar Planet

HAT-P-2 / HD 147506 (Hercules)
Annotated CCD Image 3 x 60s (average combine), 2x2 binning, C Filter 2007-05-07 23:23 hUT (#196053-61)
HAT-P-2, Reference Stars
Annotated CCD Image 20s, 2x2 binning, R Filter 2007-05-07 23:31 hUT (#196065)

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HAT-P-3 (GSC 3466:819) - Parent Star to Exosolar Planet

Baseline images of HAT-P-3 parent star (GSC 3466:819) were acquired as part of a a future project to attempt to detect the transit of an exosolar planet using my 8" LX200 scope. HAT-P-3 was only recently discovered (Torres et al, 2007, http://exoplanet.eu/papers/torres_2007.pdf). It rotates around its host star in ~ 2.9 days, and has a reported transit time of 2.06 hours.

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HAT-P-5 (GSC 2634:1087) - Parent Star to Exosolar Planet

Baseline images of HAT-P-5 parent star (GSC 2634:1087) were acquired as part of a a future project to attempt to detect the transit of an exosolar planet using my 8" LX200 scope. HAT-P-5 was only recently discovered (reference) . It rotates around its host star in ~ x,x days, and has a reported transit time of x.xx hours.

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TrES-1 / GSC 2652:1324 - Parent Star to Exosolar Planet

TrES-1 Parent Star / GSC 2652:1324 (Lyra) ~ 500 light years, distance Planet orbit 3.03 days
Annotated CCD Image 3 x 20s (average combine), C filter) 2006-07-23 23:32h UT (#131124-26)
Note : Discrepancy seen with GSC 2652:1291 (V Band) mag. Catalog +11.2, Measured Estimate +10.3. Recommend monitoring for variability

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TrES-2 (GSC 3549:2811) - Parent Star to Exosolar Planet

TrES-2 Parent Star / GSC 3549:2811 (Draco) < 750 light years, distance Planet orbit 2.47063 days V Magnitude: +11.4 , Spectral Type: G0V ]
CCD Image 3 x 60 sec exposure (average combine), 2x2 binning, C Filter 2006-11-26 19:30h UT (#155074-82)
Colour Images
Approximate Colour CCD Image BVR, 2x2 binning Red 3x60s (R Filter), Green 3x60s (V Filter), Blue 3x120s (B Filter) 2006-11-26 19:30h UT (#155075-85)
Approximate Colour CCD Image CBVR, 2x2 binning Luminance : 3 x 60s (C Filter), Red 3x60s (R Filter), Green 3x60s (V Filter), Blue 3x120s (B Filter) 2006-11-26 19:30h UT (#155075-85)
Reference Stars
CCD Image 3 x 60 sec exposure (average combine), 2x2 binning, C Filter 2006-11-26 19:30h UT (#155074-82)

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TrES-3 (GSC 3089:929) - Parent Star to Exosolar Planet

Baseline images of TrES-3 parent star (GSC 3089:929 ) were acquired as part of a project to attempt to detect the transit of an exosolar planet using my 8" LX200 scope. TrES-3b was recently discussed to orbit this star. (TrES team, 2007, http://xxx.lanl.gov/PS_cache/arxiv/pdf/0705/0705.2004v1.pdf)

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TrES-4 (GSC 2620:648) - Parent Star to Exosolar Planet

Baseline images of TrES-4 parent star (GSC 2620:648) were acquired as part of a project to detect the transit of the exosolar planet, that has recently been discussed to orbit this star . [ BBC news article]

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WASP-1 (GSC 2265:107) - Parent Star to Exosolar Planet

Baseline images of WASP-1 parent star (GSC 2265:107) as part of a project to attempt to detect the transit of an exosolar planet using my 8" LX200 scope. [WASP-1 paper : http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-2966.2007.11976.x ]

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WASP-2 (GSC 522:1199) - Parent Star to Exosolar Planet

Baseline images of WASP-2 parent star (GSC 522:1199) were acquired as part of a project to attempt to detect the transit of an exosolar planet using my 8" LX200 scope. WASP-2b was recently discussed to orbit this star.

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XO-1 (GSC 2041:1657)

Web Info :XO-1 - McCollough et al. paper

XO-1 (Corona Borealis) This star has an extra-solar planet (XO-1b), whose transit can be detectable as a slight dimming of the sol star. This will be a future observing challenge XO-1 : GSC 2041:1657 1 : GSC 2041:186, 2 : GSC 2041:976
Annotated CCD Image 3 x 30s exposure (average combine), 2x2 binning, C Filter 2006-05-24 23:18 hUT (#127028-30)

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XO-2, Parent Star to Exosolar Planet

XO-2 / GSC 3413:5 (Lynx)
Annotated CCD Image 3 x 60s (average combine), 2x2 binning, C Filter 2007-05-07 22:56 hUT (#196028-30)
XO-2, Reference Stars
Annotated CCD Image 30s, 2x2 binning, R Filter 2007-05-07 23:07 hUT (#196040)

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Future Project Stars

Potential Future Project Stars

CoRoT-Exo-1 (Host Star . http://exoplanet.eu/papers/PR-CoRoT-1.pdf

GJ 436, Leo

HAT-P-5 (2634:1087) - http://www.perseus.gr/Astro-Photometry-HAT-P-5-20080528.htm

: Monitor TransitSearch.orgfor new or potential transiting planets.

Web Information on notable nearby stars : http://www.solstation.com/stars.htm

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