The comet 123P/West-Hartley
From Ashburn , 123P/West-Hartley is visible in the evening sky, becoming accessible at around 21:05 (EDT) as the dusk sky fades, 71° above your south-eastern horizon. It will then reach its highest point in the sky at 21:57, 75° above your southern horizon. It will continue to be observable until around 03:23, when it sinks to 22° above your western horizon.
Object Type Comet
|Right Ascension:||11h02m |
12.60 lightmin 
|Absolute Mag (V):||44.47|
|Semi-major axis:||3.86 AU|
|Longitude ascending node:||46.50°|
|Argument of perihelion:||103.01°|
|Epoch of elements:||23 April 2019|
|Mean Anomaly at epoch:||10.13°|
|Orbital period:||7.58 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 April 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.