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Venator

Early warning for newly discovered comets and unconfirmed objects.

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337P

337P/WISE

CometClass Ecatalogued
Unknown

Not currently visible. Last report 1508 days ago at mag 27.0. Historic peak was mag 19.1. Typical backyard telescopes will not show it. HST, JWST, or an 8–10 m class telescope might recover it with a good ephemeris.

Active comet in COBS

JSONCSV

Right ascension

—

J2000

Declination

—

J2000

Estimated magnitude

27.0

Professional survey · COBS consensus

Confidence

33

Class E · priority 60

Observations

13

Arc unknown

Last observation

1508d ago

Sun, 31 Jul 2022 21:50:24 GMT · COBS consensus

Perihelion

2028-08-25

1.800 au

Peak window

2022-06-19 → 2028-08-28

COBS peak mag 19.1 on 2022-06-22 · perihelion 2028-08-25. Window is those dates ±3 days — not a light-curve fit.

Historic peak

19.1

COBS / analyzed peak 2022-06-22

Catalog ingest

10h ago

Venator last wrote this row 2026-09-16 13:20:18 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.

No tail measures stored yet for this object.

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

1.800 au

e

0.4660

i

17.10°

Ω

102.00°

ω

166.00°

a

—

MOID

—

H

—

H0 / n

—

NEO score

—

PHA score

—

RMS

—

Elongation

—

Reporting sources

  • COBS comet list

    ok

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

Name history

  • 337P/WISE

    337P · 2026-09-14 18:27:58 UTC → current

Discoverers

  • WISE

    Discoverer · parsed-name · 2026-09-14 18:27:58 UTC → current

Contributors

  • Kevin Hills

    CCD Observer · HIL04 · 8 reports · last 1508d ago

  • Giuseppe Pappa

    CCD Observer · PAP04 · 2 reports · last 1522d ago

  • Davide De Martin

    CCD Observer · DEM03 · 1 reports · last 1542d ago

  • John Maikner

    CCD Observer · MAI01 · 1 reports · last 1542d ago

  • Peter Carson

    CCD Observer · CAR06 · 1 reports · last 1541d ago

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