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Comets

Comets

Comet search

Find a comet and generate ephemerides with this search engine.

You can search by designation or by name. Names are not case-sensitive. Examples: “17P”, “Arend”, “C/2001 O2”.

Comet search:

Comets today

List of comets with moderate to good observing conditions for September 4 (data for 0h UT):

NameR.A.Decl.ΔrElonm1
103P/Hartley22:54.1+39° 26'0.37↓1.29↓133°↓8.5↓
10P/Tempel01:39.4-16° 07'0.66↑1.56↑138°↑8.9↑
2P/Encke13:10.0-15° 33'1.12↑0.76↑41°↑10.0↑
C/2009 R1 (McNaught)10:00.4-29° 07'2.10↑1.45↑38°↑11.2↑
65P/Gunn20:34.5-33° 19'1.84↑2.69↑139°↓12.8↑

Column meaning:

  • R.A. and Decl.: Right ascension and declination (ICRS).
  • Δ: Earth-comet distance, in Astronomical Units of distance (AU).
  • r: Comet-Sun distance, in AU.
  • Elon: elongation, the comet-Earth angle, as seen from the Sun (in degrees).
  • m1: Total magnitude.

Arrows show short-term trends.