Comet 18D/Perrine-Mrkos

Comet 18D/Perrine-Mrkos is currently in the constellation of Libra. The current Right Ascension of Comet 18D/Perrine-Mrkos is 14h 39m 10s and the Declination is -22° 18’ 52” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 18D/Perrine-Mrkos is 31.46 (JPL).

Summary of key facts about Comet 18D/Perrine-Mrkos [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

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Additional information about Comet 18D/Perrine-Mrkos available on TheSkyLive:

Available Resources

• Position and finder charts (see also Where is Comet 18D/Perrine-Mrkos?)
• Distance from Earth (see also How far is Comet 18D/Perrine-Mrkos from Earth?)
• Rise and set times (see also When does Comet 18D/Perrine-Mrkos rise and set?)
• Brightness (see also How bright is Comet 18D/Perrine-Mrkos?)
• Orbital elements. Detailed information about Comet 18D/Perrine-Mrkos orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Comet 18D/Perrine-Mrkos with respect to the major Solar System objects.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Comet 18D/Perrine-Mrkos for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Comet 18D/Perrine-Mrkos in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Comet 18D/Perrine-Mrkos with your telescope or on your astrophotographies.

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet 18D/Perrine-Mrkos is right now. Click on the image to see a more detailed fullscreen tracker view.

Also check out Where is Comet 18D/Perrine-Mrkos?, a page that provides all the information needed to find Comet 18D/Perrine-Mrkos in the sky and additional links to sky charts.

Comet 18D/Perrine-Mrkos Distance from Earth

The distance of Comet 18D/Perrine-Mrkos from Earth is currently 956,817,228 kilometers, equivalent to 6.395928 Astronomical Units. Light takes 53 minutes and 11.5987 seconds to travel from Comet 18D/Perrine-Mrkos and arrive to us.

The following chart shows the distance of Comet 18D/Perrine-Mrkos from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 18D/Perrine-Mrkos from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 18D/Perrine-Mrkos to Earth

Between January 2013 and December 2100, the closest approach of Comet 18D/Perrine-Mrkos to Earth happens on Sun Nov 28 2032 at a distance of 0.784632 Astronomical Units, or 117,379,285 kilometers:

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Comet 18D/Perrine-Mrkos brightness

The current visual magnitude of Comet 18D/Perrine-Mrkos is 31.46.

The observed magnitude and coma diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behavior of comets. When available, please refer to the Observed Magnitude value and consider the Estimated Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 18D/Perrine-Mrkos, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Comet 18D/Perrine-Mrkos rise and set times

Today's Comet 18D/Perrine-Mrkos rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

The rise and set times are defined as the time at which the upper limb of Comet 18D/Perrine-Mrkos touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Visualization of Comet 18D/Perrine-Mrkos Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 18D/Perrine-Mrkos with respect of the Sun and the orbits of the major planets. The position of Comet 18D/Perrine-Mrkos and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Comet 18D/Perrine-Mrkos 15 Days Ephemeris

The following table lists the ephemerides of Comet 18D/Perrine-Mrkos computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 18D/Perrine-Mrkos in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2021 Jan 14	14h 36m 35s	-22° 04’ 32”	31.50	Libra
2021 Jan 15	14h 36m 57s	-22° 06’ 29”	31.49	Libra
2021 Jan 16	14h 37m 18s	-22° 08’ 24”	31.49	Libra
2021 Jan 17	14h 37m 38s	-22° 10’ 15”	31.48	Libra
2021 Jan 18	14h 37m 59s	-22° 12’ 06”	31.48	Libra
2021 Jan 19	14h 38m 17s	-22° 13’ 54”	31.47	Libra
2021 Jan 20	14h 38m 36s	-22° 15’ 41”	31.47	Libra
2021 Jan 21	14h 38m 54s	-22° 17’ 23”	31.46	Libra
2021 Jan 22	14h 39m 12s	-22° 19’ 05”	31.46	Libra
2021 Jan 23	14h 39m 29s	-22° 20’ 44”	31.45	Libra
2021 Jan 24	14h 39m 46s	-22° 22’ 20”	31.45	Libra
2021 Jan 25	14h 40m 01s	-22° 23’ 54”	31.44	Libra
2021 Jan 26	14h 40m 17s	-22° 25’ 27”	31.43	Libra
2021 Jan 27	14h 40m 32s	-22° 26’ 56”	31.43	Libra