The comet 110P/Hartley
From Ashburn (click to change), 110P/Hartley is not readily observable since it is very close to the Sun, at a separation of only 17° from it.
Object Type Comet
|Brightness (V):||Mag 17.4|
|Semi-major axis:||3.61 AU|
|Longitude ascending node:||287.54°|
|Argument of perihelion:||167.43°|
|Epoch of elements:||14 October 2017|
|Mean Anomaly at epoch:||148.62°|
|Orbital period:||6.85 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.