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Early warning for newly discovered comets and unconfirmed objects.

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177P

177P/Barnard

CometClass Ecatalogued
Unknown

Not currently visible. Last report 7246 days ago at mag 37.8. Historic peak was mag 13.9. 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

37.8

Professional survey · COBS consensus

Confidence

33

Class E · priority 60

Observations

445

Arc unknown

Last observation

7246d ago

Thu, 16 Nov 2006 19:26:23 GMT · COBS consensus

Perihelion

2006-08-27

1.130 au

Peak window

2006-08-15 → 2006-08-30

COBS peak mag 13.9 on 2006-08-18 · perihelion 2006-08-27. Window is those dates ±3 days — not a light-curve fit.

Historic peak

13.9

COBS / analyzed peak 2006-08-18

Catalog ingest

18h ago

Venator last wrote this row 2026-09-17 13:20:20 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

1.130 au

e

0.9540

i

31.00°

Ω

272.00°

ω

61.00°

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

  • 177P/Barnard

    177P · 2026-09-14 18:27:52 UTC → current

Discoverers

  • Barnard

    Discoverer · parsed-name · 2026-09-14 18:27:52 UTC → current

Contributors

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