Comet 18D/Perrine-Mrkos (Lost)

Comet 18D/Perrine-Mrkos (Lost) is currently in the constellation of Libra. The current Right Ascension of Comet 18D/Perrine-Mrkos (Lost) is 15h 15m 43s and the Declination is -20° 44’ 12” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 18D/Perrine-Mrkos (Lost) is 31.33 (JPL).

Summary of key facts about Comet 18D/Perrine-Mrkos (Lost) [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 (Lost) available on TheSkyLive:

Available Resources

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

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

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

Comet 18D/Perrine-Mrkos (Lost) Distance from Earth

The distance of Comet 18D/Perrine-Mrkos (Lost) from Earth is currently 1,036,315,897 kilometers, equivalent to 6.927344 Astronomical Units. Light takes 57 minutes and 36.7777 seconds to travel from Comet 18D/Perrine-Mrkos (Lost) and arrive to us.

The following chart shows the distance of Comet 18D/Perrine-Mrkos (Lost) 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 (Lost) 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 (Lost) to Earth

Between January 2013 and December 2100, the closest approach of Comet 18D/Perrine-Mrkos (Lost) to Earth happens on Sun Nov 28 2032 at a distance of 0.784610 Astronomical Units, or 117,375,993 kilometers:

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

Comet 18D/Perrine-Mrkos (Lost) brightness

The current visual magnitude of Comet 18D/Perrine-Mrkos (Lost) is 31.33.

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 (Lost), 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 (Lost) rise and set times

Today's Comet 18D/Perrine-Mrkos (Lost) 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 (Lost) 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 (Lost) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 18D/Perrine-Mrkos (Lost) with respect of the Sun and the orbits of the major planets. The position of Comet 18D/Perrine-Mrkos (Lost) 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 (Lost) 15 Days Ephemeris

The following table lists the ephemerides of Comet 18D/Perrine-Mrkos (Lost) 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 (Lost) in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2021 Dec 01	15h 10m 39s	-20° 28’ 26”	31.36	Libra
2021 Dec 02	15h 11m 21s	-20° 30’ 41”	31.35	Libra
2021 Dec 03	15h 12m 05s	-20° 32’ 54”	31.35	Libra
2021 Dec 04	15h 12m 47s	-20° 35’ 08”	31.34	Libra
2021 Dec 05	15h 13m 29s	-20° 37’ 22”	31.34	Libra
2021 Dec 06	15h 14m 12s	-20° 39’ 33”	31.33	Libra
2021 Dec 07	15h 14m 56s	-20° 41’ 44”	31.33	Libra
2021 Dec 08	15h 15m 38s	-20° 43’ 54”	31.33	Libra
2021 Dec 09	15h 16m 19s	-20° 46’ 04”	31.32	Libra
2021 Dec 10	15h 17m 03s	-20° 48’ 12”	31.32	Libra
2021 Dec 11	15h 17m 44s	-20° 50’ 20”	31.31	Libra
2021 Dec 12	15h 18m 25s	-20° 52’ 26”	31.31	Libra
2021 Dec 13	15h 19m 08s	-20° 54’ 30”	31.30	Libra
2021 Dec 14	15h 19m 49s	-20° 56’ 35”	31.30	Libra