Astro Corner
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Celestial object
C/2025 W1 (Sankovich)
2025 W1, C/2025 W1 (Sankovich), Sankovich
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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 designation2025 W1
JPL SPK-ID1004103
Orbit classCOM
Orbit IDJPL 3
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2461005.5
Eccentricity0.999736239790
Semi-major axis15810.455383242 AU
Perihelion distance4.170169034 AU
Orbital period726,131,028.8 days
Earth MOID3.718580000 AU
Jupiter Tisserand0.449000
Inclination79.80060505°
Absolute magnitude · H—
Comet total magnitude · M19.4000 · K1 10.0000
Diameter—
Albedo—
Last catalogue sync2026-09-18 13:00:02
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
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