Astro Corner
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Celestial object
177P/Barnard
177P, 177P/Barnard, Barnard
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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 designation177P
JPL SPK-ID1000909
Orbit classHTC
Orbit IDJPL 29
Near-Earth objectYes
Potentially hazardousNo
Epoch · JD2453849.5
Eccentricity0.954442040621
Semi-major axis24.304668991 AU
Perihelion distance1.107271123 AU
Orbital period43,765.6 days
Earth MOID0.310191000 AU
Jupiter Tisserand1.317000
Inclination31.21645855°
Absolute magnitude · H—
Comet total magnitude · M115.7000 · K1 13.0000
Diameter—
Albedo—
Last catalogue sync2026-09-18 08:40:02
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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