Exoplanet Observing Tips

Details Exoplanet Observing Tips Exoplanet Observing Tips

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sass...26...23g&link_type=abstract

The Society for Astronomical Sciences 26th Annual Symposium on Telescope Science. Held May 22-24, 2007 at Big Bear, CA. Publishe

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Exoplanet transit lightcurves with depths less than ~25 mmag require observing practices that challenge the amateur and professional alike. The gold standard of 2 mmag precision per minute during a 6-hour observing session is possible, but difficult - especially using amateur hardware. Pitfalls are present in almost every aspect of observing and image analysis, but perhaps the most important, which is too often neglected, is the use of same-color reference stars. Different-color reference stars affect transit depth, shape and timing. Transit observations are used to illustrate these effects and a simple procedure for selecting same-color reference stars is presented.

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