UPSA Object Registry
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110P/Hartley 3

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.
Diameter
4.3 km
Semi-major axis
3.604 au
Eccentricity
0.3163
Inclination
11.7°
Orbital period
6.845 y
Rotation period
10.15 h

Also known as

3 identifiers

110P110P/Hartley 3Hartley

Orbit and body

JPL Small-Body Database · solution by Davide Farnocchia
ClassJFc
Semi-major axis a3.604 au
Eccentricity e0.3163
Inclination i11.7°
Perihelion q / aphelion Q2.464 / 4.74 au
Period2,500 d (6.845 y)
Node Ω / argument ω / M287.53° / 167.4° / 178.35°
Earth MOID1.48 au
Absolute magnitude H—
Diameter4.3 km
Albedo—
Rotation period10.153 h
Spectral type—
Observation arc2013-08-11 → 2023-05-13 · 2,416 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/110p-hartley-3 · Registry entry updated 2026-08-14.