comets.venator.space

Venator

Early warning for newly discovered comets and unconfirmed objects.

Back to Contributors

C/1951 C1

C/1951 C1 (Pajdusakova)

CometClass Ecatalogued
Unknown

Not currently visible. Last report 27538 days ago at mag 39.0. Historic peak was mag 8.2. 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

39.0

Professional survey · COBS consensus

Confidence

33

Class E · priority 60

Observations

50

Arc unknown

Last observation

27538d ago

Wed, 25 Apr 1951 21:21:36 GMT · COBS consensus

Perihelion

1951-01-30

0.719 au

Peak window

1951-01-27 → 1951-02-12

COBS peak mag 8.2 on 1951-02-09 · perihelion 1951-01-30. Window is those dates ±3 days — not a light-curve fit.

Historic peak

8.2

COBS / analyzed peak 1951-02-09

Catalog ingest

13h 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.

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

0.719 au

e

1.0000

i

87.90°

Ω

311.00°

ω

68.60°

a

—

MOID

—

H

—

H0 / n

—

NEO score

—

PHA score

—

RMS

—

Elongation

—

Reporting sources

  • COBS comet list

    down

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

Name history

  • C/1951 C1 (Pajdusakova)

    Informal: Pajdusakova

    C/1951 C1 · 2026-09-14 18:27:57 UTC → current

Discoverers

  • Pajdusakova

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

Contributors

  • Max Beyer

    Visual Observer · BEY · 28 reports · last 27538d ago

  • D. J. Fulcher

    Visual Observer · FUL01 · 7 reports · last 27567d ago

  • G.E.D. Alcock

    Visual Observer · ALC · 5 reports · last 27602d ago

  • D. J. Martynoff

    Visual Observer · MAR23 · 4 reports · last 27539d ago

  • G. Merton

    Visual Observer · MER02 · 4 reports · last 27591d ago

  • W. A. Granger

    Visual Observer · GRA · 3 reports · last 27588d ago

  • F. J. Acfield

    Visual Observer · ACF · 1 reports · last 27616d ago

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