The comet 315P/LONEOS
From Ashburn (click to change), 315P/LONEOS is visible in the dawn sky, rising at 03:09 (EST) – 4 hours and 14 minutes before the Sun – and reach an altitude of 27° above the south-eastern horizon before fading from view as dawn breaks at around 06:15.
Object Type Comet
|Brightness (V):||Mag 17.6|
|Semi-major axis:||5.02 AU|
|Longitude ascending node:||69.49°|
|Argument of perihelion:||67.21°|
|Epoch of elements:||17 January 2018|
|Mean Anomaly at epoch:||35.63°|
|Orbital period:||11.26 years|
Magnitudes estimates are derived from observations sent into the BAA Comet Section, as compiled by Jonathan Shanklin and last updated on 4 April 2017. 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.