468P
468P/SidingSpring
Not currently visible. Last report 841 days ago at mag 23.6. Historic peak was mag 20.1. 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
23.6
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
6
Arc unknown
Last observation
841d ago
Fri, 19 Jul 2024 07:35:00 GMT · COBS consensus
Perihelion
2023-11-20
3.950 au
Peak window
2023-08-21 → 2023-11-23
COBS peak mag 20.1 on 2023-08-24 · perihelion 2023-11-20. Window is those dates ±3 days — not a light-curve fit.
Historic peak
20.1
COBS / analyzed peak 2023-08-24
Catalog ingest
14h ago
Venator last wrote this row 2026-11-06 14:20:24 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
3.950 au
e
0.4440
i
50.50°
Ω
356.00°
ω
322.00°
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
468P/SidingSpring
468P · 2026-09-14 18:28:02 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-14 18:28:02 UTC → current
Contributors
CCD Observer · MAS01 · 4 reports · last 1202d ago
CCD Observer · PAP04 · 1 reports · last 1198d ago
CCD Observer · MAI01 · 1 reports · last 841d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.