C/2010 G1
Not currently visible. Last report 5860 days ago at mag 35.6. Historic peak was mag 14.0. 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
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J2000
Declination
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J2000
Estimated magnitude
35.6
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
4
Arc unknown
Last observation
5860d ago
Wed, 01 Sep 2010 11:16:48 GMT · COBS consensus
Perihelion
2010-03-30
1.190 au
Peak window
2010-03-14 → 2010-04-02
COBS peak mag 14.0 on 2010-03-17 · perihelion 2010-03-30. Window is those dates ±3 days — not a light-curve fit.
Historic peak
14.0
COBS / analyzed peak 2010-03-17
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.
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
1.190 au
e
0.9970
i
78.20°
Ω
288.00°
ω
168.00°
a
—
MOID
—
H
—
H0 / n
—
NEO score
—
PHA score
—
RMS
—
Elongation
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COBS comet list
okComet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).
C/2010 G1 (Boattini)
Informal: Boattini
C/2010 G1 · 2026-09-14 18:27:53 UTC → current
Discoverer · parsed-name · 2026-09-14 18:27:53 UTC → current
Visual Observer · DIJ · 1 reports · last 6003d ago
Visual Observer · GON05 · 1 reports · last 6008d ago
CCD Observer · TSU02 · 1 reports · last 5989d ago
CCD Observer · YUS · 1 reports · last 5860d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.