Comet P/2023 M4 (ATLAS)

Comet P/2023 M4 (ATLAS) is currently in the constellation of Aquarius. The current Right Ascension of Comet P/2023 M4 (ATLAS) is 21h 07m 32s and the Declination is -11° 55’ 50” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of Comet P/2023 M4 (ATLAS) is 16.87 (JPL) while the latest observed magnitude is 15.8 (COBS).

The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.

Today's rise, transit and set times of Comet P/2023 M4 (ATLAS) from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Available Resources

• Position and finder charts (see also Where is Comet P/2023 M4 (ATLAS)?)
• Distance from Earth (see also How far is Comet P/2023 M4 (ATLAS) from Earth?)
• When does Comet P/2023 M4 (ATLAS) rise and set?
• Brightness (see also How bright is Comet P/2023 M4 (ATLAS)?)
• Orbital elements. Detailed information about Comet P/2023 M4 (ATLAS) orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Comet P/2023 M4 (ATLAS) with respect to the major Solar System objects.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Comet P/2023 M4 (ATLAS) for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Comet P/2023 M4 (ATLAS) in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Comet P/2023 M4 (ATLAS) with your telescope or on your astrophotographies.

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet P/2023 M4 (ATLAS) is right now. Click on the image to see a more detailed fullscreen tracker view.

Also check out Where is Comet P/2023 M4 (ATLAS)?, a page that provides all the information needed to find Comet P/2023 M4 (ATLAS) in the sky and additional links to sky charts.

Comet P/2023 M4 (ATLAS) Distance from Earth

The distance of Comet P/2023 M4 (ATLAS) from Earth is currently 569,079,449 kilometers, equivalent to 3.804061 Astronomical Units. Light takes 31 minutes and 38.2447 seconds to travel from Comet P/2023 M4 (ATLAS) and arrive to us.

The following chart shows the distance of Comet P/2023 M4 (ATLAS) 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 P/2023 M4 (ATLAS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet P/2023 M4 (ATLAS) to Earth

Between 1 January 2000 and 31 December 2099, the closest approach of Comet P/2023 M4 (ATLAS) to Earth happens on Tue Jun 13 2084 at a distance of 2.807898 Astronomical Units, or 420,055,594 kilometers:

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

Comet P/2023 M4 (ATLAS) Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet P/2023 M4 (ATLAS), 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.

Visualization of Comet P/2023 M4 (ATLAS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet P/2023 M4 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet P/2023 M4 (ATLAS) 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 P/2023 M4 (ATLAS) 15 Days Ephemeris

The following table lists the ephemerides of Comet P/2023 M4 (ATLAS) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet P/2023 M4 (ATLAS) in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2023 Sep 18	21h 09m 20s	-11° 49’ 00”	16.80	Aquarius
2023 Sep 19	21h 09m 03s	-11° 50’ 03”	16.81	Aquarius
2023 Sep 20	21h 08m 48s	-11° 51’ 02”	16.82	Aquarius
2023 Sep 21	21h 08m 32s	-11° 51’ 59”	16.83	Aquarius
2023 Sep 22	21h 08m 17s	-11° 52’ 53”	16.83	Aquarius
2023 Sep 23	21h 08m 04s	-11° 53’ 44”	16.84	Aquarius
2023 Sep 24	21h 07m 51s	-11° 54’ 33”	16.85	Aquarius
2023 Sep 25	21h 07m 40s	-11° 55’ 19”	16.86	Aquarius
2023 Sep 26	21h 07m 28s	-11° 56’ 03”	16.87	Aquarius
2023 Sep 27	21h 07m 18s	-11° 56’ 43”	16.88	Aquarius
2023 Sep 28	21h 07m 09s	-11° 57’ 20”	16.88	Aquarius
2023 Sep 29	21h 07m 01s	-11° 57’ 55”	16.89	Aquarius
2023 Sep 30	21h 06m 53s	-11° 58’ 26”	16.90	Aquarius
2023 Oct 01	21h 06m 47s	-11° 58’ 54”	16.91	Aquarius