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Venator

Early warning for newly discovered comets and unconfirmed objects.

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C/2022 U3

C/2022 U3 (Bok)

CometClass Ecatalogued

Unknown

Not currently visible. Last report 561 days ago at mag 20.9. Historic peak was mag 17.5. 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

JSON CSV

Right ascension

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J2000

Declination

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J2000

Estimated magnitude

20.9

Professional survey · COBS consensus

Confidence

Class E · priority 60

Observations

Arc unknown

Last observation

561d ago

Tue, 04 Mar 2025 21:50:24 GMT · COBS consensus

Perihelion

2024-07-28

4.830 au

Peak window

2024-07-25 → 2025-01-04

COBS peak mag 17.5 on 2025-01-01 · perihelion 2024-07-28. Window is those dates ±3 days — not a light-curve fit.

Historic peak

17.5

COBS / analyzed peak 2025-01-01

Catalog ingest

16m ago

Venator last wrote this row 2026-09-17 00:30:04 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

4.830 au

0.9990

33.70°

273.00°

189.00°

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MOID

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H0 / n

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NEO score

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PHA score

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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/2022 U3 (Bok)
Informal: Bok
C/2022 U3 · 2026-09-14 18:28:01 UTC → current

Discoverers

Bok
Discoverer · parsed-name · 2026-09-14 18:28:01 UTC → current

Contributors

Kevin Hills
CCD Observer · HIL04 · 11 reports · last 598d ago
Pieter-Jan Dekelver
CCD Observer · DEK01 · 8 reports · last 561d ago
Giuseppe Pappa
CCD Observer · PAP04 · 2 reports · last 997d ago
Peter Carson
CCD Observer · CAR06 · 2 reports · last 1030d ago
Jure Zakrajšek
CCD Observer · ZAK · 1 reports · last 630d ago
Michael Jaeger
Visual Observer · JAE · 1 reports · last 1414d ago
Steffen Fritsche
CCD Observer · FRI02 · 1 reports · last 980d ago

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