Eta Hydri (η Hyi) designa a dos estrellas diferentes en la constelación de Hydrus (la hidra macho):
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Eta² Hydri — Starbox begin name = Eta2 Hydri Starbox observe epoch = J2000.0 constell = Hydrus ra = RA|01|54|56 dec = DEC| 67|38|50 appmag v = +4.68Starbox character class = G8.5III r i = v r = b v = 0.931 u b = variable = Suspected Starbox astrometry radial… … Wikipedia
Eta² Hydri b — Planetbox begin name=Eta2 Hydri bPlanetbox star star = Eta2 Hydri constell = Hydrus ra = RA|01|54|56 dec = DEC| 67|38|50 dist ly = 216.89 dist pc = 66.53 class = G8.5IIIPlanetbox orbit semimajor=1.93 eccentricity=0.40±0.07 period=711±8 ang… … Wikipedia
Eta² Hydri b — Eta2 Hydri b Descubrimiento Descubridor Setiawan et al. en La Silla Fecha … Wikipedia Español
Eta2 Hydri — Constelación Hydrus Ascensión recta α 01h 54min 56,13s Declinación δ 67º 38’ 50,3’’ Distancia … Wikipedia Español
Pole star — For other uses, see Polestar (disambiguation). North Star redirects here. For other uses, see North Star (disambiguation). A French navisphere : a type of celestial globe formerly used for navigation at sea The term Pole Star usually refers to… … Wikipedia
Эта² Южной Гидры — η² Южной Гидры Звезда Наблюдательные данные (Эпоха J2000.0) Прямое восхождение … Википедия
Stars and planetary systems in fiction — The planetary systems of stars other than the Sun and the Solar System are a staple element in much science fiction. Contents 1 Overview 1.1 The brightest stars … Wikipedia
X-ray astronomy — X rays start at 0.008 nm and extend across the electromagnetic spectrum to 8 nm, over which the Earth s atmosphere is opaque. X ray astronomy is an observational branch of astronomy which deals with the study of X ray observation and detection… … Wikipedia
Liste der Sterne — Eine Liste von Sternen, die zum Großteil einen eigenen Artikel in der Wikipedia haben. 0–9 Eigenname Bezeichnung 40 Eridani 47 Ursae Majoris 51 Pegasi 55 Cancri … Deutsch Wikipedia
Liste von Sternen — Eine Liste von Sternen, die zum Großteil einen eigenen Artikel in der Wikipedia haben. Inhaltsverzeichnis 1 Sterne mit historischen Eigennamen 1.1 A 1.2 B 1.3 C … Deutsch Wikipedia
