The comet 217P/LINEAR

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From Ashburn (click to change), 217P/LINEAR will become visible at around 20:55 (EDT) as the dusk sky fades, 60° above your south-western horizon. It will then sink towards the horizon, setting 6 hours and 34 minutes after the Sun at 02:20.

Name 217P/LINEAR
Object Type Comet
Current Position
Brightness (V mag):17.69
Right Ascension:07h39m
Source for position: Computed using orbital elements from Minor Planet Centre
Orbital Elements
Semi-major axis:3.96 AU
Longitude ascending node:125.45°
Argument of perihelion:246.94°
Epoch of elements:19 April 2018
Mean Anomaly at epoch:34.64°
Derived quantities
Perihelion:1.24 AU
Aphelion:6.68 AU
Orbital period:7.87 years
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Additional sources

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.




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