UPSA Object Registry
Registry · solar system

23P/Brorsen-Metcalf

Comet
harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.
Semi-major axis
17.07 au
Eccentricity
0.972
Inclination
19.33°
Orbital period
70.64 y

Also known as

3 identifiers

23P23P/Brorsen-MetcalfBrorsen-Metcalf

Orbit and body

JPL Small-Body Database · solution by M.S.W. Keesey
ClassHTC · near-Earth
Semi-major axis a17.07 au
Eccentricity e0.972
Inclination i19.33°
Perihelion q / aphelion Q0.479 / 33.66 au
Period25,800 d (70.64 y)
Node Ω / argument ω / M311.59° / 129.61° / 0.27°
Earth MOID0.194 au
Absolute magnitude H—
Diameter— km
Albedo—
Rotation period— h
Spectral type—
Observation arc1847-08-01 → 1989-09-09 · 223 observations

Provenance

where this card came from
ArchiveRead at (UTC)Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/23p-brorsen-metcalf · Registry entry updated 2026-08-14.