C/1970 B1
Not currently visible. Last report 20677 days ago at mag 33.3. Historic peak was mag -6.3. 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
33.3
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
4
Arc unknown
Last observation
20677d ago
Fri, 06 Feb 1970 06:14:23 GMT · COBS consensus
Perihelion
1970-01-31
0.077 au
Peak window
1970-01-28 → 1970-02-03
COBS peak mag -6.3 on 1970-01-31 · perihelion 1970-01-31. Window is those dates ±3 days — not a light-curve fit.
Historic peak
-6.3
COBS / analyzed peak 1970-01-31
Catalog ingest
13h ago
Venator last wrote this row 2026-09-16 13:20:18 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
0.077 au
e
1.0000
i
99.80°
Ω
27.90°
ω
266.00°
a
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MOID
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H
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H0 / n
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NEO score
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PHA score
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RMS
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Elongation
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COBS comet list
downComet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).
C/1970 B1 (Daido-Fujikawa)
Informal: Daido-Fujikawa
C/1970 B1 · 2026-09-14 18:27:57 UTC → current
Discoverer · parsed-name · 2026-09-14 18:27:57 UTC → current
Visual Observer · BRI02 · 2 reports · last 20677d ago
Visual Observer · MAT05 · 1 reports · last 20678d ago
Visual Observer · MCC03 · 1 reports · last 20679d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.