Irregular galaxy · Cetus

IC 1613

Also known as: C51

mag 9.518′ across

About

IC 1613 is an irregular galaxy of magnitude 9.5 in Cetus, about 18′ across.

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How to find it

  • IC 1613 is in the constellation Cetus.
  • Best evenings: around late November it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
  • Where on Earth: it is seen well, at least 10° up, from north of 78° S.

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When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.

What you will see

  • EyesNot visible to the naked eye.
  • Binoculars (10×50)Too faint for binoculars.
  • Telescope (6–8 inch)Very hard or out of reach: it needs a dark sky and a larger telescope, or a camera.

For a dark country sky with no Moon. From a city, faint galaxies and nebulae can disappear completely.

Facts

DesignationsIC 1613, C51, PGC 3844, UGC 668
TypeIrregular galaxy (I)
Magnitude9.5The smaller the number, the brighter.
Apparent size18′ × 17′the full Moon is 31′ across
Surface brightness25.0 mag/arcsec²Average over its disc, in the blue band: the lower the number, the easier it is to see.
ConstellationCetus
Right ascension (J2000)01h 04m 47.8s
Declination (J2000)+02° 07′ 04″

More in Cetus

Sources and credits

Catalog data: OpenNGC by Mattia Verga, CC BY-SA 4.0, and d3-celestial by Olaf Frohn, BSD 3-Clause. All data sources →