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Celestial object

C/2009 F4 (McNaught)

2009 F4, C/2009 F4 (McNaught), McNaught

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Reference data

RADate-dependentMoving object · use an ephemeris

DecDate-dependentMoving object · use an ephemeris

Magnitude—

Angular size—

Position angle—

Distance—

Constellation—

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 designation2009 F4

JPL SPK-ID1003016

Orbit classHYP

Orbit IDJPL 163

Near-Earth objectNo

Potentially hazardousNo

Epoch · JD2455854.5

Eccentricity1.001810591029

Semi-major axis-3012.758168267 AU

Perihelion distance5.454872912 AU

Orbital period—

Earth MOID5.169170000 AU

Jupiter Tisserand—

Inclination79.34729422°

Absolute magnitude · H—

Comet total magnitude · M15.8000 · K1 7.0000

Diameter—

Albedo—

Last catalogue sync2026-09-18 11:30:02

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.4 records

Catalogue identities

COMETC/2009 F4 (McNaught)NASA/JPL Small-Body DatabaseSource

JPL_SBDBJPL 1003016NASA/JPL Small-Body DatabaseSource

Reference fields

Canonical NameNASA/JPL Small-Body Database2026-09-11 05:00:11Source

Small Body OrbitNASA/JPL Small-Body Database2026-09-11 05:00:11Source

Community observations

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Guides & knowledge

Published Guides that reference this canonical object.

Knowledge library

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Images of this object

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