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Early warning for newly discovered comets and unconfirmed objects.

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P/2005 K3

P/2005 K3 (McNaught)

CometClass Ecatalogued
Unknown

Likely observable. Last report 47 days ago.

JSONCSV

Right ascension

—

J2000

Declination

—

J2000

Estimated magnitude

—

Unknown · COBS consensus

Confidence

33

Class E · priority 56

Observations

565

Arc unknown

Last observation

47d ago

Mon, 21 Sep 2026 02:44:42 GMT · COBS consensus

Perihelion

—

—

Peak window

2019-09-21

COBS published peak mag 10.4. Perihelion not in the catalog yet.

Historic peak

10.4

COBS / analyzed peak 2019-09-21

Catalog ingest

13h ago

Venator last wrote this row 2026-11-06 14:20:19 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

—

e

—

i

—

Ω

—

ω

—

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

  • P/2005 K3 (McNaught)

    Informal: McNaught

    P/2005 K3 · 2026-09-14 18:27:55 UTC → current

Discoverers

  • McNaught

    Discoverer · parsed-name · 2026-09-14 18:27:55 UTC → current

Contributors

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