The comet 110P/Hartley
From Ashburn , 110P/Hartley is visible in the morning sky, becoming accessible around 22:56, when it rises to an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 02:19, 40° above your southern horizon. It will be lost to dawn twilight around 04:44, 29° above your south-western horizon.
Object Type Comet
|Right Ascension:||21h00m |
28.26 lightmin 
|Absolute Mag (V):||44.88|
|Semi-major axis:||3.60 AU|
|Longitude ascending node:||287.53°|
|Argument of perihelion:||167.37°|
|Epoch of elements:||14 May 2019|
|Mean Anomaly at epoch:||231.88°|
|Orbital period:||6.84 years|
Where possible, the brightnesses of comets are estimated from absolute magnitude values computed by the BAA Comet Section, based on the observations they receive. We prefer these to the Minor Planet Center's own magnitude estimates, since the latter are less often updated. Nonetheless, comets are intrinsically unpredictable objects, and magnitude estimates must always be taken with a pinch of salt.