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Venator

Early warning for newly discovered comets and unconfirmed objects.

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231P

231P/LINEAR-NEAT

CometClass Ecatalogued
Unknown

Not currently visible. Last report 2414 days ago at mag 19.7. 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

19.7

Professional survey · COBS consensus

Confidence

33

Class E · priority 60

Observations

19

Arc unknown

Last observation

2414d ago

Sun, 29 Mar 2020 04:19:11 GMT · COBS consensus

Perihelion

2027-07-31

3.100 au

Peak window

2027-02-15 → 2027-08-03

COBS peak mag 18.7 on 2027-02-18 · perihelion 2027-07-31. Window is those dates ±3 days — not a light-curve fit.

Historic peak

18.7

COBS / analyzed peak 2027-02-18

Catalog ingest

11m 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

3.100 au

e

0.2400

i

12.30°

Ω

133.00°

ω

43.00°

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

  • 231P/LINEAR-NEAT

    231P · 2026-09-14 18:27:53 UTC → current

Discoverers

  • LINEAR

    Discoverer · parsed-name · 2026-09-15 18:25:24 UTC → current

  • LINEAR-NEAT

    Discoverer · parsed-name · 2026-09-15 18:25:24 UTC → current

  • NEAT

    Discoverer · parsed-name · 2026-09-15 18:25:24 UTC → current

  • LINEAR-NEAT

    Discoverer · parsed-name · 2026-09-14 18:27:53 UTC → 2026-09-15 18:25:24 UTC

Contributors

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