The comet 110P/Hartley
From Ashburn (click to change), 110P/Hartley will become visible at around 20:13 (EDT) as the dusk sky fades, 25° above your southern horizon. It will then sink towards the horizon, setting 4 hours and 59 minutes after the Sun at 00:08.
Object Type Comet
|Right Ascension:||18h10m |
|Semi-major axis:||3.60 AU|
|Longitude ascending node:||287.53°|
|Argument of perihelion:||167.38°|
|Epoch of elements:||19 September 2018|
|Mean Anomaly at epoch:||197.69°|
|Orbital period:||6.84 years|
Magnitudes estimates are derived from observations sent into the BAA Comet Section, as compiled by Jonathan Shanklin and last updated on 29 February 2012. 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.