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235P

235P/LINEAR

CometClass Ecatalogued
Southern hemisphere

Not visible to typical instruments. Current estimate mag 18.6. Historic peak was mag 16.9. Visual and most CCD amateur setups will not see it. Space telescopes or large ground telescopes are the remaining path.

Active comet in COBS

Right ascension

17h 10m 15s

J2000

Declination

−12° 48′ 07″

J2000

Estimated magnitude

18.6

Professional survey · COBS consensus

Confidence

33

Class E · priority 60

Observations

380

Arc unknown

Last observation

8d ago

Tue, 08 Sep 2026 18:57:35 GMT · COBS consensus

Perihelion

2025-12-22

1.980 au

Peak window

2025-12-19 → 2025-12-25

COBS peak mag 16.9 on 2025-12-22 · perihelion 2025-12-22. Window is those dates ±3 days — not a light-curve fit.

Historic peak

16.9

COBS / analyzed peak 2025-12-22

Catalog ingest

just now

Venator last wrote this row 2026-09-17 00:00:07 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

1.980 au

e

0.4260

i

9.81°

Ω

200.00°

ω

352.00°

a

3.450 au

MOID

H

H0 / n

6.1 / 8.7

NEO score

PHA score

RMS

Elongation

86°

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

  • 235P/LINEAR

    235P · 2026-09-13 22:21:22 UTC → current

Discoverers

  • LINEAR

    Discoverer · parsed-name · 2026-09-13 22:21:22 UTC → current

Contributors

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