List of stars in Ophiuchus — This is the list of notable stars in the constellation Ophiuchus, sorted by decreasing brightness. Name B F HD HIP RA Dec vis. mag. abs. mag. Dist. (ly) Sp. class Notes α Oph α 55 159561 86032 17h … Wikipedia
Cygnus (constellation) — Cygnus Constellation List of stars in Cygnus Abbreviation Cyg Genitive Cygni Pronunciation … Wikipedia
Cygnus OB2 — in the light of H Alpha; 2.5° view Credit: IPHAS Observation data (J2000.0 epoch) Constellation … Wikipedia
List of most luminous stars — Below is a list of stars arranged in order of decreasing luminosity (increasing bolometric magnitude). Accurate measurement of stellar luminosities is quite difficult in practice, even when the apparent magnitude is measured accurately, for three … Wikipedia
List of planetary systems — Number of extrasolar planet discoveries per year as of 7 July 2011, with colors indicating method of detection … Wikipedia
Cygnus X-1 — For other uses, see Cygnus X 1 (disambiguation). HDE 226868 HDE 226868 (not shown) is located next to the star η (lower center) in this map of constellation Cygnus … Wikipedia
List of selected stars for navigation — The selected stars for navigation are often used for sextant observations. Fifty eight selected navigational stars are given a special status in the field of celestial navigation. Of the approximately 6,000 stars visible to the naked eye under… … Wikipedia
List of constellations — Each culture has its own constellations, usually based on mythology. This article covers the 88 constellations used in modern astronomy, which properly speaking are not patterns of stars, as in the common use of the word, but areas of the sky… … Wikipedia
Cygnus OB2-12 — as seen by a hypothetical close orbiting planet. Observation data Epoch J2000 Equinox J2000 … Wikipedia
Cygnus A — Observation data (J2000 epoch) Constellation Cygnus Right ascension … Wikipedia
