Astro Corner
Your corner of the universe.
EN
Celestial object
C/1976 J1 (Harlan)
1976 J1, C/1976 J1 (Harlan), Harlan
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
Magnitude—
Angular size—
Position angle—
Distance—
Constellation—
Solar System catalogue
JPL SBDBMoving-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.
Primary designation1976 J1
JPL SPK-ID1001168
Orbit classCOM
Orbit IDJPL 2
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2442956.5
Eccentricity0.999742403804
Semi-major axis6090.351370772 AU
Perihelion distance1.568851343 AU
Orbital period173,604,888.6 days
Earth MOID0.565211000 AU
Jupiter Tisserand1.211000
Inclination38.80562820°
Absolute magnitude · H—
Comet total magnitude · M19.0000 · K1 10.2500
Diameter—
Albedo—
Last catalogue sync2026-09-18 09:10:02
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
Community observations
No public community observations for this object yet.
Guides & knowledge
Published Guides that reference this canonical object.
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.