299P
299P/Catalina-PANSTARRS
Not currently visible. Last report 770 days ago at mag 22.3. Historic peak was mag 19.3. Typical backyard telescopes will not show it. HST, JWST, or an 8–10 m class telescope might recover it with a good ephemeris.
Right ascension
—
J2000
Declination
—
J2000
Estimated magnitude
22.3
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
53
Arc unknown
Last observation
770d ago
Wed, 07 Aug 2024 21:07:11 GMT · COBS consensus
Perihelion
2024-04-29
3.150 au
Peak window
2024-04-26 → 2024-05-23
COBS peak mag 19.3 on 2024-05-20 · perihelion 2024-04-29. Window is those dates ±3 days — not a light-curve fit.
Historic peak
19.3
COBS / analyzed peak 2024-05-20
Catalog ingest
9h 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
3.150 au
e
0.2810
i
10.50°
Ω
272.00°
ω
324.00°
a
—
MOID
—
H
—
H0 / n
—
NEO score
—
PHA score
—
RMS
—
Elongation
—
Reporting sources
COBS comet list
okComet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).
Name history
299P/Catalina-PANSTARRS
299P · 2026-09-14 18:27:56 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-16 13:20:17 UTC → current
Discoverer · parsed-name · 2026-09-16 13:20:17 UTC → current
Discoverer · parsed-name · 2026-09-16 13:20:17 UTC → current
Discoverer · parsed-name · 2026-09-14 18:27:56 UTC → 2026-09-16 13:20:17 UTC
Contributors
CCD Observer · HIL04 · 29 reports · last 770d ago
CCD Observer · PEA · 14 reports · last 779d ago
CCD Observer · PAP04 · 3 reports · last 797d ago
CCD Observer · MAS01 · 2 reports · last 982d ago
CCD Observer · BAR06 · 1 reports · last 4574d ago
CCD Observer · MAI01 · 1 reports · last 1246d ago
CCD Observer · YOS02 · 1 reports · last 835d ago
CCD Observer · TSU02 · 1 reports · last 4546d ago
CCD Observer · DEK01 · 1 reports · last 831d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.