The comet 38P/Stephan-Oterma
From Ashburn , 38P/Stephan-Oterma is visible all night. It will become visible at around 18:23 (EST) as the dusk sky fades, 25° above your north-eastern horizon. It will be lost to dawn twilight at around 06:14, 29° above your north-western horizon.
Object Type Comet
|Right Ascension:||08h32m |
|Semi-major axis:||11.29 AU|
|Longitude ascending node:||78.00°|
|Argument of perihelion:||359.58°|
|Epoch of elements:||24 January 2019|
|Mean Anomaly at epoch:||1.92°|
|Orbital period:||37.94 years|
|Light-on-dark||PNG image||PDF document|
|Dark-on-light||PNG image||PDF document|
Magnitudes estimates are derived from observations sent into the BAA Comet Section, as compiled by Jonathan Shanklin and last updated on 2 January 2019. We use these amateur observations in preference to the MPC's magnitude estimates, since they are updated much more often. Nonetheless, all comets are intrinsically unpredictable objects, and future magnitude estimates must always be taken with a pinch of salt.