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Venator

Early warning for newly discovered comets and unconfirmed objects.

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65P

65P/Gunn

CometClass Ecatalogued
Both hemispheres

Difficult — CCD / large telescope. Around mag 15.9. A large amateur CCD or a professional telescope is required. Historic peak was mag 13.4.

Active comet in COBS

JSONCSV

Right ascension

00h 10m 57s

J2000

Declination

−08° 50′ 17″

J2000

Estimated magnitude

15.9

CCD / citizen telescope · COBS consensus

Confidence

33

Class E · priority 66

Observations

766

80.00 d arc

Last observation

3d ago

Wed, 04 Nov 2026 14:34:46 GMT · COBS consensus

Perihelion

2025-06-16

2.930 au

Peak window

2025-06-13 → 2025-07-01

COBS peak mag 13.4 on 2025-06-28 · perihelion 2025-06-16. Window is those dates ±3 days — not a light-curve fit.

Historic peak

13.4

COBS / analyzed peak 2025-06-28

Catalog ingest

2m ago

Venator last wrote this row 2026-11-07 03:00:09 UTC

Light curve

Brightness over time (V mag)

Gold = reported observations. Steel dashed family = ensemble (nominal / outburst / fade / disruption).

Tail length

Converted to degrees from COBS (d / arcmin / arcsec). Empty until analysis has pulled the archive.

Ensemble is a first-pass H0/n photometric model plus observed samples — not a trained ML forecast yet. The background analyzer walks the catalog one object at a time so COBS is not flooded. Disruption track rises after perihelion to stand in for solar-wind stripping.

Orbital elements

q

2.930 au

e

0.2480

i

9.18°

Ω

62.00°

ω

214.00°

a

3.890 au

MOID

—

H

—

H0 / n

8.2 / 5.9

NEO score

—

PHA score

—

RMS

—

Elongation

135°

Reporting sources

  • COBS comet list

    ok

    Comet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).

  • COBS orbits

    ok

    Osculating elements and photometric parameters (H0, n) for active comets.

Name history

  • 65P/Gunn

    65P · 2026-09-08 02:09:56 UTC → current

Discoverers

  • Gunn

    Discoverer · parsed-name · 2026-09-08 17:27:23 UTC → current

Contributors

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Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.