165P
165P/LINEAR
Not currently visible. Last report 8957 days ago at mag 25.8. Historic peak was mag 19.5. 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
25.8
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
11
Arc unknown
Last observation
8957d ago
Sat, 09 Mar 2002 15:21:36 GMT · COBS consensus
Perihelion
2000-06-24
6.780 au
Peak window
2000-01-19 → 2000-06-27
COBS peak mag 19.5 on 2000-01-22 · perihelion 2000-06-24. Window is those dates ±3 days — not a light-curve fit.
Historic peak
19.5
COBS / analyzed peak 2000-01-22
Catalog ingest
11h ago
Venator last wrote this row 2026-09-16 13:20:16 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.
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.
Orbital elements
q
6.780 au
e
0.6200
i
15.90°
Ω
0.57°
ω
126.00°
a
—
MOID
—
H
—
H0 / n
—
NEO score
—
PHA score
—
RMS
—
Elongation
—
Reporting sources
COBS comet list
okComet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).
Name history
165P/LINEAR
165P · 2026-09-14 18:27:54 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-14 18:27:54 UTC → current
Contributors
CCD Observer · NAK01 · 5 reports · last 8957d ago
CCD Observer · ORI · 4 reports · last 9337d ago
CCD Observer · HER02 · 2 reports · last 9368d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.