Astro Corner
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Celestial object
170P/Christensen
170P, 170P/Christensen, Christensen
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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
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 designation170P
JPL SPK-ID1001649
Orbit classJFc
Orbit IDJPL K232/34
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2459721.5
Eccentricity0.304211903875
Semi-major axis4.201210590 AU
Perihelion distance2.923152318 AU
Orbital period3,145.3 days
Earth MOID1.932650000 AU
Jupiter Tisserand2.924000
Inclination10.12430228°
Absolute magnitude · H—
Comet total magnitude · M19.4000 · K1 13.0000
Diameter—
Albedo—
Last catalogue sync2026-09-18 09:50:02
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
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