ExoClock

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Exoplanet transit of Qatar-9b

by WebMistress

One more for the Exoclock project. This time the transit of exoplanet Qatar-9b measured by Simon Dawes and Martin Crow on the same night.  Qatar-9 b is a hot Jupiter exoplanet in Ursa Major that orbits a K-type star. Its mass is 1.19 Jupiters, it takes 1.5 days to complete one orbit of its star […]

More ExoPlanet transits for the ExoClock Project – Nov 2023

by WebMistress

Five more transits done! TOI-3688 A b is a gas giant exoplanet that orbits a G-type star. Its mass is 0.98 Jupiters, it takes 3.2 days to complete one orbit of its star and is 0.0456 AU from its star. Its discovery was announced in 2023. https://exoplanets.nasa.gov/exoplanet-catalog/8781/toi-3688-a-b/ Exoplanet GPX-1 b is in the constellation of Perseus. […]

ExoClock Conference, Thessaloniki, Greece 2023

by WebMistress

2023 October 21/22 Aristotle University of Thessaloniki, Greece  3rd ExoClock Annual Meeting  CMHASD trustees Martin Crow, Simon Dawes and Dr Mike Rushton attended the 3rd Annual Conference of ExoClock in Greece, a project to improve the ephemeris of exo-planet transits for the European Space Agencies, Aerial Mission, due to launch in 2029. During the conference […]

ExoPlanet transit of HAT-P-23b by Keith Rickard

by WebMistress

One more for the ExoClock project – this one being the first for CMHASD trustee and treasurer Keith Rickard.  It is of Exoplanet HAT-P-23b in the constellation Delphinus. ”HAT-P-23 b is a gas giant exoplanet that orbits a G-type star. Its mass is 2.09 Jupiters, it takes 1.2 days to complete one orbit of its […]

ExoPlanet TrES-3b transit – observed by Simon Dawes

by WebMistress

Another for the ExoClock project by Simon Dawes of the transit of exoplanet TrES-3b. TrES-3b is in a very tight orbit around its host star, TrES-3, transiting the stellar disk once per 31 hours. For comparison, Mercury orbits the sun once every 88 days. TrES-3b is just a little larger than Jupiter, yet orbits around […]

ExoPlanet transit of TrES-3b by Dr Mike Rushton

by WebMistress

The transit of Exoplanet TrES-3b by CMHASD member & trustee Dr. Mike Rushton using an eVscope for the ExoClock project. TrES-3b is a gas giant exoplanet orbiting the star GSC 03089-00929 a G-type star and is 0.02282 AU from its star. It has an orbital period of just 31 hours and nearly twice the mass […]

Transit of ExoPlanet HD189733b by Simon Dawes

by WebMistress

Another set of observations for the ExoClock project by member Simon Dawes 🙂 Simon wrote ”This was a tricky observation, a bright star with faint comparisons, on the night of the summer solstice – the worst night of the year for astronomy, due to the lack of real night – there were 627 15s exposures […]