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Early warning for newly discovered comets and unconfirmed objects.

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C/1962 C1

C/1962 C1 (Seki-Lines)

CometClass Ecatalogued
Unknown

Not currently visible. Last report 23504 days ago at mag 40.9. Historic peak was mag -4.0. 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

40.9

Professional survey · COBS consensus

Confidence

33

Class E · priority 60

Observations

279

Arc unknown

Last observation

23504d ago

Sat, 12 May 1962 01:26:24 GMT · COBS consensus

Perihelion

1962-04-18

0.034 au

Peak window

1962-04-15 → 1962-04-21

COBS peak mag -4.0 on 1962-04-18 · perihelion 1962-04-18. Window is those dates ±3 days — not a light-curve fit.

Historic peak

-4.0

COBS / analyzed peak 1962-04-18

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.

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

0.034 au

e

1.0000

i

58.60°

Ω

303.00°

ω

12.10°

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/1962 C1 (Seki-Lines)

    Informal: Seki-Lines

    C/1962 C1 · 2026-09-14 18:27:57 UTC → current

Discoverers

  • Seki-Lines

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

Contributors

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