IC 4665

IC 4665
Observation data (J2000 epoch)
Constellation Ophiuchus
Right ascension 17h 46m 18s[1]
Declination +05° 43 00[1]
Distance 1.4 kly (352 pc)
Apparent magnitude (V) 4.2[1]
Apparent dimensions (V) 45′x45′
Physical characteristics

IC 4665 is an open cluster in the constellation Ophiuchus. It was discovered by Philippe Loys de Chéseaux in 1745. The cluster began to develop less than 40 million years ago, and lies about 1,400 light years away from Earth. It is easily visible in the smallest of telescopes and also with binoculars. From a sufficiently dark place it is also visible to the naked eye.

References

  1. 1 2 3 "SIMBAD Astronomical Database". Results for NGC 6369. Retrieved 2007-04-17.

Coordinates: 17h 46m 18s, +05° 43′ 00″

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