C/2003 T4
Visibility unknown. No recent magnitude. Large facilities may still recover it if an ephemeris exists.
Right ascension
—
J2000
Declination
—
J2000
Estimated magnitude
—
Unknown · COBS consensus
Confidence
33
Class E · priority 56
Observations
254
Arc unknown
Last observation
7706d ago
Sat, 01 Oct 2005 20:09:36 GMT · COBS consensus
Perihelion
—
—
Peak window
2005-04-08
COBS published peak mag 7.7. Perihelion not in the catalog yet.
Historic peak
7.7
COBS / analyzed peak 2005-04-08
Catalog ingest
15h ago
Venator last wrote this row 2026-11-06 14:20:17 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
—
e
—
i
—
Ω
—
ω
—
a
—
MOID
—
H
—
H0 / n
—
NEO score
—
PHA score
—
RMS
—
Elongation
—
COBS comet list
okComet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).
C/2003 T4 (LINEAR)
Informal: LINEAR
C/2003 T4 · 2026-09-14 18:27:52 UTC → current
Discoverer · parsed-name · 2026-09-14 18:27:52 UTC → current
Visual Observer · BIV · 23 reports · last 7902d ago
Visual Observer · BOU · 22 reports · last 7902d ago
CCD Observer · HOR02 · 20 reports · last 8054d ago
Visual Observer · SHA02 · 16 reports · last 7910d ago
CCD Observer · RES · 16 reports · last 7996d ago
Visual Observer · DIJ · 10 reports · last 7978d ago
CCD Observer · NAK01 · 9 reports · last 8012d ago
Visual Observer · JON · 9 reports · last 7845d ago
Visual Observer · DOR02 · 9 reports · last 7907d ago
Visual Observer · GON05 · 9 reports · last 7904d ago
Visual Observer · MIY01 · 9 reports · last 7914d ago
Visual Observer · HOR02 · 8 reports · last 7901d ago
CCD Observer · TSU02 · 8 reports · last 7706d ago
Visual Observer · MOR03 · 7 reports · last 7904d ago
Visual Observer · GUZ · 6 reports · last 7902d ago
Visual Observer · YOS04 · 6 reports · last 7913d ago
CCD Observer · OHS · 6 reports · last 7902d ago
Visual Observer · BAR06 · 5 reports · last 7964d ago
Visual Observer · PEA · 5 reports · last 7848d ago
Visual Observer · SEA · 5 reports · last 7851d ago
Visual Observer · SHU · 5 reports · last 7920d ago
Visual Observer · NEV · 5 reports · last 7963d ago
Visual Observer · GRA04 · 4 reports · last 7903d ago
Visual Observer · POW01 · 4 reports · last 7941d ago
Visual Observer · SCH04 · 2 reports · last 7945d ago
Visual Observer · AMO01 · 2 reports · last 7832d ago
Visual Observer · LOO01 · 2 reports · last 8024d ago
Visual Observer · ABB · 2 reports · last 7968d ago
CCD Observer · SRB · 2 reports · last 8007d ago
CCD Observer · SUZ03 · 2 reports · last 8280d ago
Visual Observer · YOS02 · 2 reports · last 7906d ago
Visual Observer · NAG04 · 2 reports · last 7915d ago
Visual Observer · MEY · 2 reports · last 7965d ago
Visual Observer · FIL04 · 2 reports · last 7964d ago
Visual Observer · LEH · 2 reports · last 7944d ago
Visual Observer · MAT08 · 2 reports · last 7848d ago
Visual Observer · TOT03 · 2 reports · last 7965d ago
Visual Observer · CHR · 1 reports · last 7964d ago
Visual Observer · LAB02 · 1 reports · last 7972d ago
Visual Observer · KER02 · 1 reports · last 7944d ago
1–40 of 54
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.