387P
387P/Boattini
Not currently visible. Last report 2483 days ago at mag 28.3. Historic peak was mag 16.8. 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
28.3
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
4
Arc unknown
Last observation
2483d ago
Sat, 30 Nov 2019 06:00:00 GMT · COBS consensus
Perihelion
2030-03-13
1.260 au
Peak window
2019-09-07 → 2030-03-16
COBS peak mag 16.8 on 2019-09-10 · perihelion 2030-03-13. Window is those dates ±3 days — not a light-curve fit.
Historic peak
16.8
COBS / analyzed peak 2019-09-10
Catalog ingest
12h ago
Venator last wrote this row 2026-09-16 13:20:18 UTC
Light curve
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.
Orbital elements
q
1.260 au
e
0.7370
i
8.94°
Ω
259.00°
ω
163.00°
a
—
MOID
—
H
—
H0 / n
—
NEO score
—
PHA score
—
RMS
—
Elongation
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Reporting sources
COBS comet list
okComet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).
Name history
387P/Boattini
387P · 2026-09-14 18:27:59 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-14 18:27:59 UTC → current
Contributors
CCD Observer · YOS02 · 2 reports · last 2534d ago
CCD Observer · HIL04 · 2 reports · last 2483d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.