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Venator

Early warning for newly discovered comets and unconfirmed objects.

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P/2026 T1

P/2026 T1 (ATLAS)

CometClass Ecatalogued
Both hemispheres

Difficult — CCD / large telescope. Around mag 17.2. A large amateur CCD or a professional telescope is required.

Active comet in COBS

JSONCSV

Right ascension

19h 36m 58s

J2000

Declination

−05° 27′ 02″

J2000

Estimated magnitude

17.2

CCD / citizen telescope · COBS consensus

Confidence

33

Class E · priority 66

Observations

3

Arc unknown

Last observation

33h ago

Thu, 05 Nov 2026 18:28:47 GMT · COBS consensus

Perihelion

2026-08-09

3.510 au

Peak window

2026-07-12 → 2026-08-12

COBS peak mag 16.3 on 2026-07-15 · perihelion 2026-08-09. Window is those dates ±3 days — not a light-curve fit.

Historic peak

16.3

COBS / analyzed peak 2026-07-15

Catalog ingest

15m ago

Venator last wrote this row 2026-11-07 03:00:09 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

3.510 au

e

0.3250

i

16.80°

Ω

226.00°

ω

70.20°

a

5.210 au

MOID

—

H

—

H0 / n

-2.0 / 9.8

NEO score

—

PHA score

—

RMS

—

Elongation

72°

Reporting sources

  • COBS comet list

    ok

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

  • COBS orbits

    ok

    Osculating elements and photometric parameters (H0, n) for active comets.

Name history

  • P/2026 T1 (ATLAS)

    Informal: ATLAS

    P/2026 T1 · 2026-10-21 01:55:34 UTC → current

Discoverers

  • ATLAS

    Discoverer · parsed-name · 2026-10-21 01:55:34 UTC → current

Contributors

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