C/1980 E1
Not currently visible. Last report 14585 days ago at mag 35.3. Historic peak was mag 14.9. 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
—
J2000
Estimated magnitude
35.3
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
176
Arc unknown
Last observation
14585d ago
Tue, 02 Dec 1986 03:50:24 GMT · COBS consensus
Perihelion
1982-02-07
3.410 au
Peak window
1982-02-04 → 1982-06-05
COBS peak mag 14.9 on 1982-06-02 · perihelion 1982-02-07. Window is those dates ±3 days — not a light-curve fit.
Historic peak
14.9
COBS / analyzed peak 1982-06-02
Catalog ingest
13h ago
Venator last wrote this row 2026-11-06 14:20:20 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.
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.
q
3.410 au
e
1.0500
i
1.66°
Ω
115.00°
ω
135.00°
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).
C/1980 E1 (Bowell)
Informal: Bowell
C/1980 E1 · 2026-09-14 18:27:57 UTC → current
Discoverer · parsed-name · 2026-09-14 18:27:57 UTC → current
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Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.