332P-H
332P-H/Ikeya-Murakami
Not currently visible. Last report 3842 days ago at mag 23.7. Historic peak was mag 20.5. 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
23.7
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
1
Arc unknown
Last observation
3842d ago
Thu, 10 Mar 2016 23:16:48 GMT · COBS consensus
Perihelion
2027-01-20
1.570 au
Peak window
2027-01-17 → 2027-03-11
COBS peak mag 20.5 on 2027-03-08 · perihelion 2027-01-20. Window is those dates ±3 days — not a light-curve fit.
Historic peak
20.5
COBS / analyzed peak 2027-03-08
Catalog ingest
15h 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
9.39°
Ω
3.75°
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-H/Ikeya-Murakami
332P-H · 2026-09-14 18:27:58 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-14 18:27:58 UTC → current
Contributors
Visual Observer · BAR06 · 1 reports · last 3842d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.