The comet 110P/Hartley
From Fairfield , 110P/Hartley is visible in the dawn sky, rising at 00:32 (EDT) – 4 hours and 55 minutes before the Sun – and reaching an altitude of 31° above the south-eastern horizon before fading from view as dawn breaks at around 04:05.
Object Type Comet
|Right Ascension:||21h15m |
33.71 lightmin 
|Absolute Mag (V):||44.98|
|Semi-major axis:||3.60 AU|
|Longitude ascending node:||287.53°|
|Argument of perihelion:||167.37°|
|Epoch of elements:||13 May 2019|
|Mean Anomaly at epoch:||231.88°|
|Orbital period:||6.84 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 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.