Extrasolar Planet Transit Finder
This page contains up-to-date elements of all known transiting extrasolar planets, and will calculate all observable transits for a specified location and time range. For each observable transit event, the program will return the planet name, V magnitude, the dates of ingrees, mid-transit, and egress, the air mass at each time, and the predicted eclipse depth based on the system parameters, sorted by the field of your choosing. There is also an option to include secondary eclipses for each system, which use the system's eccentricity and longitude of periastron to accurately calculate the secondary timing offset via Kallrath & Milone 1998.
Select an observatory, (or select 'other' and input your own longitude and latitude), along with a range of JD to search, and the program will return all observable transit events for which the entirety of the transit fits within the JD range, the airmass is less than 3.0 for the whole transit, and the sun's altitude is less than -6 degrees (i.e. at least civil twilight) for the entirety of the transit. Predicted primary eclipse depths are calculated via the simple square of the ratio of planet radius to the stellar radius. Secondary eclipse depths are calculated by first balancing the flux recieved by the planet from the star to that emmitted by the planet to obtain an equilibrium temperature of the dayside. Then, the secondary eclipse depth is the square of the ratio of the planet radius to the stellar radius times the ratio of the blackbody intensities of the planet and star at the specified wavelength.
To see the list of planets, which is also a great, uniform database of many system parameters for transiting systems, click here. (Last updated 9/23/09)
Please send any suggestions for improvements, observatories to add, or any other comments to jlcough@nmsu.edu
