332P-B
332P-B/Ikeya-Murakami
Not currently visible. Last report 3868 days ago at mag 23.6. Historic peak was mag 20.1. 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
23.6
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
3
Arc unknown
Last observation
3868d ago
Sat, 13 Feb 2016 19:40:48 GMT · COBS consensus
Perihelion
2016-03-17
1.570 au
Peak window
2016-02-18 → 2016-03-20
COBS peak mag 20.1 on 2016-02-21 · perihelion 2016-03-17. Window is those dates ±3 days — not a light-curve fit.
Historic peak
20.1
COBS / analyzed peak 2016-02-21
Catalog ingest
14h 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
1.570 au
e
0.4900
i
9.38°
Ω
3.80°
ω
152.00°
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
332P-B/Ikeya-Murakami
332P-B · 2026-09-14 18:27:58 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-14 18:27:58 UTC → current
Contributors
CCD Observer · WAR01 · 2 reports · last 3868d ago
CCD Observer · YOS02 · 1 reports · last 3872d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.