Astro Corner
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Celestial object
P/2006 HR30 (Siding Spring)
2006 HR30, P/2006 HR30 (Siding Spring), Siding Spring
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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 designation2006 HR30
JPL SPK-ID1002409
Orbit classHTC
Orbit IDJPL 91
Near-Earth objectYes
Potentially hazardousNo
Epoch · JD2454065.5
Eccentricity0.843123576500
Semi-major axis7.817804538 AU
Perihelion distance1.226429216 AU
Orbital period7,984.1 days
Earth MOID0.452720000 AU
Jupiter Tisserand1.785000
Inclination31.88445008°
Absolute magnitude · H—
Comet total magnitude · M113.9000 · K1 4.5000
Diameter—
Albedo—
Last catalogue sync2026-09-18 10:40:02
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
Community observations
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Guides & knowledge
Published Guides that reference this canonical object.
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Images of this object
Confirmed manual or plate-solve links to this canonical object. Solver suggestions are excluded until confirmed by the image owner.
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