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C/1992 B1

C/1992 B1 (Bradfield)

CometClass Ecatalogued
Unknown

Not currently visible. Last report 12616 days ago at mag 35.6. Historic peak was mag 6.4. 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

35.6

Professional survey · COBS consensus

Confidence

33

Class E · priority 60

Observations

10

Arc unknown

Last observation

12616d ago

Mon, 02 Mar 1992 16:19:12 GMT · COBS consensus

Perihelion

1992-03-19

0.500 au

Peak window

1992-03-13 → 1992-03-22

COBS peak mag 6.4 on 1992-03-16 · perihelion 1992-03-19. Window is those dates ±3 days — not a light-curve fit.

Historic peak

6.4

COBS / analyzed peak 1992-03-16

Catalog ingest

11h ago

Venator last wrote this row 2026-09-16 13:20:17 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

0.500 au

e

1.0000

i

20.20°

Ω

275.00°

ω

15.30°

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

  • C/1992 B1 (Bradfield)

    Informal: Bradfield

    C/1992 B1 · 2026-09-14 18:27:57 UTC → current

Discoverers

  • Bradfield

    Discoverer · parsed-name · 2026-09-14 18:27:57 UTC → current

Contributors

  • Graham W. Wolf

    Visual Observer · WOL01 · 5 reports · last 12616d ago

  • Paul Camilleri

    Visual Observer · CAM03 · 3 reports · last 12632d ago

  • Alan Hale

    Visual Observer · HAL · 1 reports · last 12634d ago

  • Albert F. Jones

    Visual Observer · JON · 1 reports · last 12634d ago

  • J. da S. Campos

    Visual Observer · CAM · 1 reports · last 12632d ago

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