372P
372P/McNaught
Not currently visible. Last report 5826 days ago at mag 23.0. Historic peak was mag 21.7. 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
23.0
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
3
Arc unknown
Last observation
5826d ago
Mon, 04 Oct 2010 23:02:24 GMT · COBS consensus
Perihelion
2028-05-23
3.830 au
Peak window
2028-05-20 → 2028-10-05
COBS peak mag 21.7 on 2028-10-02 · perihelion 2028-05-23. Window is those dates ±3 days — not a light-curve fit.
Historic peak
21.7
COBS / analyzed peak 2028-10-02
Catalog ingest
10h ago
Venator last wrote this row 2026-09-16 13:20:18 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
3.830 au
e
0.1510
i
9.50°
Ω
326.00°
ω
27.60°
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
372P/McNaught
372P · 2026-09-14 18:27:59 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-14 18:27:59 UTC → current
Contributors
Visual Observer · MAR02 · 1 reports · last 6617d ago
CCD Observer · TSU02 · 1 reports · last 6559d ago
CCD Observer · SHU · 1 reports · last 5826d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.