The comet 73P/Schwassmann-Wachmann
From Ashburn (click to change), 73P/Schwassmann-Wachmann is not readily observable since it is very close to the Sun, at a separation of only 2° from it.
Object Type Comet
|Right Ascension:||03h45m |
|Semi-major axis:||3.09 AU|
|Longitude ascending node:||69.66°|
|Argument of perihelion:||199.40°|
|Epoch of elements:||05 May 2018|
|Mean Anomaly at epoch:||75.05°|
|Orbital period:||5.44 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 4 April 2017. 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.