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Celestial object

C/1948 W1 (Bester)

1948 W1, Bester, C/1948 W1 (Bester)

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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 designation1948 W1

JPL SPK-ID1001073

Orbit classCOM

Orbit IDSAO_2008

Near-Earth objectNo

Potentially hazardousNo

Epoch · JD2432840.5

Eccentricity0.997499000000

Semi-major axis509.167533000 AU

Perihelion distance1.273428000 AU

Orbital period—

Earth MOID—

Jupiter Tisserand0.069000

Inclination87.60540000°

Absolute magnitude · H—

Diameter—

Albedo—

Last catalogue sync2026-09-18 09:00:02

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/1948 W1 (Bester)NASA/JPL Small-Body DatabaseSource

JPL_SBDBJPL 1001073NASA/JPL Small-Body DatabaseSource

Reference fields

Canonical NameNASA/JPL Small-Body Database2026-09-11 02:30:05Source

Small Body OrbitNASA/JPL Small-Body Database2026-09-11 02:30:05Source

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Images of this object

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