SU Aurigae

In 1907, Henrietta Swan Leavitt discovered that SU Aurigae is a variable star.

[5] SU Aurigae's spectral type of G2IIIne means that it is a G-type star with an effective temperature similar to the Sun.

[7] SU Aurigae is known to have a circumstellar protoplanetary disk surrounding it, which is typical of many T Tauri stars.

[7] SU Aurigae's disk has a high inclination of 62° and is nearly perpendicular to the plane of sky, so orbiting protoplanets or comets may be the cause of why there are drops in the amount of light detected.

[3] SU Aurigae's proper motion and distance is similar to AB Aurigae,[1] a better known pre-main-sequence star, meaning that the two may form a very wide binary system;[6] if not, they are still in the same star association.

Light curves for SU Aurigae. The main plot shows the long term variability, and the inset plot shows the short term variability measured by the MOST spacecraft. Adapted from Grankin et al. (2018) [ 8 ] and Cody et al. (2013) [ 9 ]