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Celestial object

C/1995 Y1 (Hyakutake)

1995 Y1, C/1995 Y1 (Hyakutake), Hyakutake

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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

Moving-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.

JPL SBDB

Primary designation1995 Y1

JPL SPK-ID1001275

Orbit classHYP

Orbit IDJPL 2

Near-Earth objectNo

Potentially hazardousNo

Epoch · JD2450137.5

Eccentricity1.000269470509

Semi-major axis-3913.664483112 AU

Perihelion distance1.054617161 AU

Orbital period—

Earth MOID0.216486000 AU

Jupiter Tisserand—

Inclination54.46607179°

Absolute magnitude · H—

Comet total magnitude · M19.9000 · K1 15.0000

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

Catalogue identities

COMETC/1995 Y1 (Hyakutake)NASA/JPL Small-Body DatabaseSource

JPL_SBDBJPL 1001275NASA/JPL Small-Body DatabaseSource

Reference fields

Canonical NameNASA/JPL Small-Body Database2026-09-11 02:40:09Source

Small Body OrbitNASA/JPL Small-Body Database2026-09-11 02:40:09Source

Community observations

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Images of this object

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