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C/2024 E1

C/2024 E1 (Wierzchos)

CometClass Ecatalogued
Northern hemisphere

Not currently visible. Last report 192 days ago at mag 22.2. Historic peak was mag 5.4. Typical backyard telescopes will not show it. HST, JWST, or an 8–10 m class telescope might recover it with a good ephemeris.

Active comet in COBS

Right ascension

12h 56m 27s

J2000

Declination

+58° 50′ 36″

J2000

Estimated magnitude

22.2

Professional survey · COBS consensus

Confidence

33

Class E · priority 60

Observations

1152

Arc unknown

Last observation

192d ago

Tue, 28 Apr 2026 19:40:48 GMT · COBS consensus

Perihelion

2026-01-20

0.566 au

Peak window

2026-01-17 → 2026-01-23

COBS peak mag 5.4 on 2026-01-20 · perihelion 2026-01-20. Window is those dates ±3 days — not a light-curve fit.

Historic peak

5.4

COBS / analyzed peak 2026-01-20

Catalog ingest

13h 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.

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

0.566 au

e

1.0000

i

75.20°

Ω

108.00°

ω

244.00°

a

-1500.000 au

MOID

—

H

—

H0 / n

8.8 / 6.4

NEO score

—

PHA score

—

RMS

—

Elongation

76°

Reporting sources

  • COBS comet list

    ok

    Comet Observation Database magnitudes and perihelion data for the full COBS list (active and inactive).

  • COBS orbits

    ok

    Osculating elements and photometric parameters (H0, n) for active comets.

Name history

  • C/2024 E1 (Wierzchos)

    Informal: Wierzchos

    C/2024 E1 · 2026-09-10 01:34:00 UTC → current

Discoverers

  • Wierzchos

    Discoverer · parsed-name · 2026-09-10 01:34:00 UTC → current

Contributors

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Pips are observation weight on this object (log of report count). Hover for catalog-wide weight.