P/2004 R3
P/2004 R3 (LINEAR-NEAT)
Not currently visible. Last report 7983 days ago at mag 26.4. Historic peak was mag 22.0. 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
26.4
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
6
Arc unknown
Last observation
7984d ago
Sun, 07 Nov 2004 13:40:48 GMT · COBS consensus
Perihelion
2021-09-10
3.520 au
Peak window
2021-08-30 → 2021-09-13
COBS peak mag 22.0 on 2021-09-02 · perihelion 2021-09-10. Window is those dates ±3 days — not a light-curve fit.
Historic peak
22.0
COBS / analyzed peak 2021-09-02
Catalog ingest
12h 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
3.520 au
e
0.2570
i
12.80°
Ω
305.00°
ω
36.60°
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
P/2004 R3 (LINEAR-NEAT)
Informal: LINEAR-NEAT
P/2004 R3 · 2026-09-14 18:27:54 UTC → current
Discoverers
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
Contributors
CCD Observer · NAK01 · 5 reports · last 7984d ago
CCD Observer · HOR02 · 1 reports · last 8035d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.