Your corner of the universe.

Celestial object

P/2023 M4 (ATLAS)

2023 M4, ATLAS, P/2023 M4 (ATLAS)

Make this Object part of your astronomy journeyMembers can add targets, record observations, link images and watch this Object for visibility alerts.

Reference data

RADate-dependentMoving object · use an ephemeris

DecDate-dependentMoving object · use an ephemeris

Magnitude5.400

Angular size28.2′

Position angle—

Distance—

ConstellationSco

Solar System catalogue

Moving-object reference

Comets and minor planets move against the background sky. Astro Corner therefore keeps their orbital catalogue record separately and does not pretend a single RA/Dec is permanently correct.

JPL SBDB

Primary designation2023 M4

JPL SPK-ID1003939

Orbit classJFc

Orbit IDJPL 22

Near-Earth objectNo

Potentially hazardousNo

Epoch · JD2460163.5

Eccentricity0.279421291919

Semi-major axis5.453317594 AU

Perihelion distance3.929544547 AU

Orbital period4,651.5 days

Earth MOID2.919610000 AU

Jupiter Tisserand2.903000

Inclination7.59256016°

Absolute magnitude · H—

Comet total magnitude · M16.5000 · K1 11.5000

Diameter—

Albedo—

Last catalogue sync2026-09-18 12:40:02

Planning coordinates are intentionally separate.A later Horizons ephemeris layer can calculate the object's apparent position for a specific date, time and observing location. Until then, static-sky tools are hidden for this record rather than showing misleading coordinates.

Open JPL Small-Body Database

Reference transparencySources & data provenanceSee where catalogue identities and imported reference fields came from.10 records

Catalogue identities

MESSIERM 4Astro Corner catalogue registrySource

COMETP/2023 M4 (ATLAS)NASA/JPL Small-Body DatabaseSource

JPL_SBDBJPL 1003939NASA/JPL Small-Body DatabaseSource

Reference fields

Angular Size Major ArcminOpenNGC via GAVO TAP2026-09-11 06:10:19Source

Canonical NameNASA/JPL Small-Body Database2026-09-11 06:10:16Source

ConstellationOpenNGC via GAVO TAP2026-09-11 06:10:19Source

Dec DegOpenNGC via GAVO TAP2026-09-11 06:10:19Source

MagnitudeOpenNGC via GAVO TAP2026-09-11 06:10:19Source

Ra DegOpenNGC via GAVO TAP2026-09-11 06:10:19Source

Small Body OrbitNASA/JPL Small-Body Database2026-09-11 06:10:16Source

Community observations

No public community observations for this object yet.

Guides & knowledge

Published Guides that reference this canonical object.

Knowledge library

No published Guides reference this object yet.

Images of this object

Confirmed manual or plate-solve links to this canonical object. Solver suggestions are excluded until confirmed by the image owner.

No visible confirmed images are linked to this object yet.