New planet in Pegasus
In June 2008, the WASP (Wide-Angle Survey for Planets) team announced the discovery of two new massive exoplanets. One of these, WASP-10b, is a gas-giant planet three times more massive than Jupiter, orbiting a 12.7th magnitude star in Pegasus. From time to time, the planet moves across its parent-star's disk, causing an eclipse. Anthony Ayiomamitis, a regular contributor of cool astropics (browse his gallery), caught the action.
"Although I was hesitant last night about pursuing the first available transit of WASP-10b for capture due to the low preingress altitude of the host star," Anthony writes, "I decided to pursue the transit anyway so as get the experience and knowledge surrounding this relatively dim host star (mag 12.70)."
He spent almost three and a half hours photometrically observing the star and the light curve he produced is the first amateur result of this newly discovered exoplanet.
"The results turned out much better than I expected," he says, "and it is also interesting to note the prediction for egress does not agree with last night's result, for it seems the total transit of 142 minutes should be greater."
"There is another opportunity to capture this transit at the end of the month and with the host star much higher in the sky. It will be interesting to see how my result then will compare with last night's effort."
He adds that the discovery team "makes reference to tidal effects and which most probably is attributable to the presence of another exoplanet."
Find out more about Anthony's photometric work on this new planet from his webpage 'Differential Photometry – WASP-10 in Pegasus'.
nothing more to see. please move along.