328P
328P/LONEOS-Tucker
Not currently visible. Last report 725 days ago at mag 25.7. Historic peak was mag 18.0. 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
25.7
Professional survey · COBS consensus
Confidence
33
Class E · priority 60
Observations
25
Arc unknown
Last observation
725d ago
Sat, 21 Sep 2024 22:19:11 GMT · COBS consensus
Perihelion
2024-07-27
1.860 au
Peak window
2024-07-24 → 2024-10-10
COBS peak mag 18.0 on 2024-10-07 · perihelion 2024-07-27. Window is those dates ±3 days — not a light-curve fit.
Historic peak
18.0
COBS / analyzed peak 2024-10-07
Catalog ingest
16h ago
Venator last wrote this row 2026-09-16 13:20:18 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
1.860 au
e
0.5540
i
17.70°
Ω
341.00°
ω
30.40°
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
328P/LONEOS-Tucker
328P · 2026-09-14 18:27:57 UTC → current
Discoverers
Discoverer · parsed-name · 2026-09-16 13:20:18 UTC → current
Discoverer · parsed-name · 2026-09-16 13:20:18 UTC → current
Discoverer · parsed-name · 2026-09-16 13:20:18 UTC → current
Discoverer · parsed-name · 2026-09-14 18:27:57 UTC → 2026-09-16 13:20:18 UTC
Contributors
CCD Observer · NAK01 · 10 reports · last 10101d ago
Visual Observer · LEH · 5 reports · last 10188d ago
CCD Observer · LEH02 · 3 reports · last 725d ago
Visual Observer · HOR02 · 2 reports · last 10200d ago
CCD Observer · PAP04 · 1 reports · last 822d ago
CCD Observer · MAI01 · 1 reports · last 777d ago
CCD Observer · CAR06 · 1 reports · last 773d ago
Visual Observer · KAR02 · 1 reports · last 10197d ago
Visual Observer · HAS02 · 1 reports · last 10164d ago
Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.