© Andy Roberts 1997. Pictured comet is C/1995 O1 Hale-Bopp.

C/2015 O1 (PANSTARRS) at perihelion

Tue, 20 Feb 2018 (Today)

Dominic Ford, Editor
From the Comets feed

Please wait
Loading 0/4
Click and drag to rotate
Mouse wheel to zoom in/out
Touch with mouse to dismiss
The sky at

Comet C/2015 O1 (PANSTARRS) will make its closest approach to the Sun, at a distance of 3.73 AU.

From Ashburn (click to change), it will be visible in the dawn sky, rising at 22:08 (EST) – 8 hours and 45 minutes before the Sun – and reach an altitude of 78° above the eastern horizon before fading from view as dawn breaks at around 05:48.

For more information about its path across the sky, see In-The-Sky.org's ephemeris page for comet C/2015 O1 (PANSTARRS).

This event was automatically generated on the basis of orbital elements published by the Minor Planet Center (MPC), and is updated daily (last update, 21 Feb 2018).

Note that the future positions of comets are typically known with a high degree of confidence, but their brightnesses are often much more unpredictable, since it is impossible to predict with certainty how they will respond as they move closer to the Sun. Magnitude estimates should be assumed to be highly provisional more than a few weeks in advance.

Printable finder charts
Light-on-dark PNG image PDF document
Dark-on-light PNG image PDF document
The path traced across the sky by C/2015 O1 (PANSTARRS)

The exact position of comet C/2015 O1 (PANSTARRS) will be:

Object Right Ascension Declination Constellation Magnitude
Comet C/2015 O1 (PANSTARRS) 16h31m20s +35°50' Hercules 13.0

The coordinates are given in J2000.0.

The sky on 20 February 2018
Sunrise 06:54
Sunset 17:51
Twilight ends
Twilight begins

5-day old moon
Age of Moon
5 days

All times shown in EST.
Rise Culm. Set
Mercury 07:10 12:35 18:00
Venus 07:27 13:03 18:38
Moon 09:43 16:08 22:34
Mars 02:17 07:03 11:49
Jupiter 00:25 05:30 10:35
Saturn 03:50 08:35 13:21


The circumstances of this event were computed using the DE405 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

Image credit

© Andy Roberts 1997. Pictured comet is C/1995 O1 Hale-Bopp.




Color scheme