243P
243P/NEAT
Not currently visible. Last report 411 days ago at mag 19.1. 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
19.1
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
13
Arc unknown
Last observation
411d ago
Sat, 02 Aug 2025 05:50:00 GMT · COBS consensus
Perihelion
2026-02-25
2.450 au
Peak window
2025-08-29 → 2026-02-28
COBS peak mag 18.1 on 2025-09-01 · perihelion 2026-02-25. Window is those dates ±3 days — not a light-curve fit.
Historic peak
18.1
COBS / analyzed peak 2025-09-01
Catalog ingest
7m ago
Venator last wrote this row 2026-09-16 23:00:05 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.
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
2.450 au
e
0.3600
i
7.64°
Ω
87.60°
ω
284.00°
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
243P/NEAT
243P · 2026-09-13 22:21:22 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-13 22:21:22 UTC → current
Contributors
CCD Observer · NAK01 · 9 reports · last 8247d ago
CCD Observer · NOV01 · 2 reports · last 5439d ago
CCD Observer · MAI01 · 1 reports · last 411d ago
CCD Observer · TSU02 · 1 reports · last 8370d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.