148P
Not currently visible. Last report 1253 days ago at mag 23.1. Historic peak was mag 18.9. 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
23.1
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
5
Arc unknown
Last observation
1253d ago
Thu, 13 Apr 2023 04:41:00 GMT · COBS consensus
Perihelion
2029-05-04
1.630 au
Peak window
2029-05-01 → 2029-05-07
COBS peak mag 18.9 on 2029-05-04 · perihelion 2029-05-04. Window is those dates ±3 days — not a light-curve fit.
Historic peak
18.9
COBS / analyzed peak 2029-05-04
Catalog ingest
12h 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
1.630 au
e
0.5500
i
3.66°
Ω
89.20°
ω
8.11°
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).
148P/Anderson-LINEAR
148P · 2026-09-14 18:27:54 UTC → current
Discoverer · parsed-name · 2026-09-16 13:20:16 UTC → current
Discoverer · parsed-name · 2026-09-16 13:20:16 UTC → current
Discoverer · parsed-name · 2026-09-16 13:20:16 UTC → current
Discoverer · parsed-name · 2026-09-14 18:27:54 UTC → 2026-09-16 13:20:16 UTC
CCD Observer · HIL04 · 2 reports · last 1829d ago
CCD Observer · NAK01 · 1 reports · last 9400d ago
CCD Observer · PAP04 · 1 reports · last 1751d ago
CCD Observer · MAI01 · 1 reports · last 1253d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.