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Exoplanet imaging and discovery project

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Last seen: 3 days 21 hours ago
Joined: 05/03/2014 - 10:05
Exoplanet imaging and discovery project

I have added a new project at 

The objectives of this project are;
- to observe specific exoplanets
- to discover additional exoplanets in the named systems 

The project is currently being pilot tested and participants would be most welcome. Please feel free to comment.

Roger Dymock

Robin Leadbeater's picture
Last seen: 13 hours 18 min ago
Joined: 05/03/2014 - 00:50
other exoplanets in known systems

Hi Roger,

It might be interesting to look at the original (and any subsequent published) light curves of  these proposed planetary systems to check what the unexplored orbital period/transit depth space looks like?  For example why would  HATNet  have not found the other potential planets in the HAT-P-19 system listed in table 2? Also, in additional to the effect of inclination, it should be possible, given a maximum size of planet and a minimum detectable transit depth, to estimate the maximum orbital period it is worth looking at for each system.

Interestingly, there is another similar proposal currently being discussed on Stargazer's Lounge. They are planning to look for very shallow transits to 0.1%,  though I am not convinced  that amateurs could do this for transits of unknown timing and duration.



Last seen: 3 days 21 hours ago
Joined: 05/03/2014 - 10:05
Other exoplanets in known systems

Hi Robin,

Thanks for your comments. When I put the target list together I selected bright host stars with exoplanets that exhibited large transit dips - ideal for those new to this aspect of astronomy. What I didn't do. and perhaps should have, was check whether or not these were multi-planet systems. I have since come across several papers discussing possible 'missing' exoplanets using the Titius-Bode law to calculate orbits. Using this data and your suggestions ref planet size and transit depth I should be able to come up with a target list. Will also see what the Stargazers Lounge are planning.