459P
459P/Catalina
Not currently visible. Last report 1256 days ago at mag 26.2. Historic peak was mag 15.6. 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
26.2
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
2
Arc unknown
Last observation
1256d ago
Mon, 10 Apr 2023 00:16:00 GMT · COBS consensus
Perihelion
2028-12-22
1.370 au
Peak window
2028-12-19 → 2028-12-25
COBS peak mag 15.6 on 2028-12-22 · perihelion 2028-12-22. Window is those dates ±3 days — not a light-curve fit.
Historic peak
15.6
COBS / analyzed peak 2028-12-22
Catalog ingest
13h ago
Venator last wrote this row 2026-09-16 13:20:19 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
1.370 au
e
0.5780
i
7.17°
Ω
257.00°
ω
205.00°
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
459P/Catalina
459P · 2026-09-14 18:28:01 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-14 18:28:01 UTC → current
Contributors
CCD Observer · PAP04 · 1 reports · last 1257d ago
CCD Observer · MAI01 · 1 reports · last 1256d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.