The comet C/2018 Y1 (Iwamoto)
From Ashburn , C/2018 Y1 (Iwamoto) will become visible at around 21:05 (EDT) as the dusk sky fades, 22° above your north-western horizon. It will then sink towards the horizon, setting 3 hours and 40 minutes after the Sun at 23:35.
Name C/2018 Y1 (Iwamoto)
Object Type Comet
|Right Ascension:||04h24m |
19.89 lightmin 
|Absolute Mag (V):||41.96|
|Semi-major axis:||129.67 AU|
|Longitude ascending node:||147.48°|
|Argument of perihelion:||358.06°|
|Epoch of elements:||23 April 2019|
|Mean Anomaly at epoch:||0.05°|
|Orbital period:||1476.54 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.