369P
369P/Hill
Not currently visible. Last report 2820 days ago at mag 23.7. Historic peak was mag 17.9. 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
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J2000
Estimated magnitude
23.7
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
10
Arc unknown
Last observation
2820d ago
Thu, 27 Dec 2018 23:16:47 GMT · COBS consensus
Perihelion
2027-12-19
1.950 au
Peak window
2027-11-14 → 2027-12-22
COBS peak mag 17.9 on 2027-11-17 · perihelion 2027-12-19. Window is those dates ±3 days — not a light-curve fit.
Historic peak
17.9
COBS / analyzed peak 2027-11-17
Catalog ingest
11h 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
1.950 au
e
0.5560
i
10.30°
Ω
47.30°
ω
13.30°
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
369P/Hill
369P · 2026-09-14 18:27:59 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-14 18:27:59 UTC → current
Contributors
CCD Observer · HAE · 5 reports · last 6037d ago
CCD Observer · HIL04 · 5 reports · last 2820d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.