122P
Not currently visible. Last report 11041 days ago at mag 35.1. Historic peak was mag 5.1. 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
35.1
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
774
Arc unknown
Last observation
11041d ago
Tue, 25 Jun 1996 06:43:12 GMT · COBS consensus
Perihelion
1995-10-06
0.659 au
Peak window
1995-10-03 → 1995-10-09
COBS peak mag 5.1 on 1995-10-06 · perihelion 1995-10-06. Window is those dates ±3 days — not a light-curve fit.
Historic peak
5.1
COBS / analyzed peak 1995-10-06
Catalog ingest
11h ago
Venator last wrote this row 2026-09-16 13:20:16 UTC
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.
q
0.659 au
e
0.9630
i
86.00°
Ω
79.70°
ω
13.00°
a
—
MOID
—
H
—
H0 / n
—
NEO score
—
PHA score
—
RMS
—
Elongation
—
COBS comet list
okComet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).
122P/de Vico
122P · 2026-09-14 18:27:54 UTC → current
Discoverer · parsed-name · 2026-09-14 18:27:54 UTC → current
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1–40 of 170
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.