Find Exoplanet Transits
This form calculates which transits of the 4661 known transiting exoplanets or 7821 TESS Objects of Interest (TOIs) are observable from a given location at a given time. Specify a time window, an observing location (either an observatory from the list or choose "Enter latitude/longitude" at the end of the list), and optionally any filters (e.g. minimum transit depth or elevation). The output includes transit time and elevation, and links to further information about each object, including finding charts and airmass plots. (There are also stand-alone pages for generating finding charts (annotated JPGs or using Aladin Lite) and airmass plots for any target.)
Latest updates (full update list):- October 2022: Aladin finder charts now use Gaia DR3 data, and show Gaia variable star and eclipsing binary candidates.
- October 2022: You can now plan your night of observing by selecting the transits you plan to observe, which will hide any events that overlap with the selected event(s) (taking into account the out-of-transit baseline), leaving only those that don't overlap. Use the checkboxes next to the object name.
If this tool is useful for your research, please consider citing it, e.g. Jensen E. L. N. 2013. Tapir: A Web Interface for Transit/Eclipse Observability, Astrophysics Source Code Library ascl:1306.007.
This page uses input ephemeris data from the NASA Exoplanet Archive and ExoFOP-TESS. The finding charts provided here make use of images from the Digitized Sky Survey, which are subject to copyright, and can be acknowledged like this.
This tool is part of the Tapir package for planning astronomical observations; the source code is freely available.
This page was created by Eric Jensen. Feedback welcome! Send here.