The comet 217P/LINEAR
From Ashburn (click to change), 217P/LINEAR is visible in the dawn sky, rising at 03:29 (EDT) – 3 hours and 51 minutes before the Sun – and reach an altitude of 30° above the eastern horizon before fading from view as dawn breaks at around 06:16.
Object Type Comet
|Right Ascension:||10h51m |
|Semi-major axis:||3.95 AU|
|Longitude ascending node:||125.45°|
|Argument of perihelion:||246.92°|
|Epoch of elements:||06 October 2018|
|Mean Anomaly at epoch:||56.08°|
|Orbital period:||7.86 years|
|Light-on-dark||PNG image||PDF document|
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Magnitudes estimates are derived from observations sent into the BAA Comet Section, as compiled by Jonathan Shanklin and last updated on 30 November 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.