Assassin logo

All-Sky Automated Survey for Supernovae

Sky Patrol

Astronomy osu

Making ASAS-SN light curves public is primarily funded by Gorden betty moore logo grant GBMF5490.

Enter the Right Ascension and Declination:

The reCaptcha app may report a time-out during your query, but this will not affect its completion.

When using ASAS-SN light curves in publications, cite both Shappee et al. (2014) and Kochanek et al. (2017).

WARNING: V-band (now) and g-band (later in 2017) magnitudes obtained via this page are calculated in real-time using aperture photometry, with zero-points calibrated using the APASS catalog. ASAS-SN images have 8" pixels (~15" FWHM PSF,) so blending/crowding might be significant in some cases. The "Examples" page linked below, and Kochanek et al. (2017) paper, illustrate some of the potential problems. Always proceed with caution before publishing. This page is meant to obtain a relatively small number of light curves - if you need light curves of many (>100) objects, please contact us.