C/2010 F1
Not currently visible. Last report 5164 days ago at mag 32.0. Historic peak was mag 17.4. 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
32.0
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
6
Arc unknown
Last observation
5164d ago
Fri, 27 Jul 2012 22:33:36 GMT · COBS consensus
Perihelion
2009-11-09
3.570 au
Peak window
2009-11-06 → 2010-02-10
COBS peak mag 17.4 on 2010-02-07 · perihelion 2009-11-09. Window is those dates ±3 days — not a light-curve fit.
Historic peak
17.4
COBS / analyzed peak 2010-02-07
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
3.570 au
e
0.9470
i
64.90°
Ω
345.00°
ω
127.00°
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 F1 (Boattini)
Informal: Boattini
C/2010 F1 · 2026-09-14 18:27:53 UTC → current
Discoverer · parsed-name · 2026-09-14 18:27:53 UTC → current
Visual Observer · HAR11 · 4 reports · last 5164d ago
CCD Observer · NOV01 · 1 reports · last 6027d ago
CCD Observer · YOS02 · 1 reports · last 6025d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.