planetary nebula
81Cosmic distance ladder — * Light green boxes: Technique applicable to star forming galaxies. * Light blue boxes: Technique applicable to Population II galaxies. * Light Purple boxes: Geometric distance technique. * Light Red box: The planetary nebula luminosity function… …
82Star — For other uses, see Star (disambiguation) …
83White dwarf — For other uses, see White dwarf (disambiguation). Image of Sirius A and Sirius B taken by the Hubble Space Telescope. Sirius B, which is a white dwarf, can be seen as a faint pinprick of light to the lower left of the much brighter Sirius A …
84Mz 3 — Ant Nebula The Ant Nebula Observation data (Epoch J2000) Right ascension 16h 17m 13.39 …
85Liste von planetarischen Nebeln — Dies ist eine Liste von planetarischen Nebeln und Supernovaüberreste. Inhaltsverzeichnis 1 Auflistung der planetarischen Nebel mit ihren Grunddaten 2 Supernovaüberreste 3 Bildergalerie …
86Space science — is an all encompassing term that describes all of the various science fields that are concerned with the study of the Universe, generally also meaning excluding the Earth and outside of the Earth s atmosphere . Originally, all of these fields… …
87NGC 3132 — Observation data (Epoch J2000.0) Right ascension 10h 07m 01.7640s …
88Outline of astronomy — Mauna Kea in Hawaii is one of the world s premier observatory sites. Pictured is the W. M. Keck Observatory, an optical interferometer. The following outline is provided as an overview of and topical guide to astronomy: Astronomy – studies the… …
89NGC 2438 — Observation data (Epoch J2000.0) Right ascension 07h 41.8m …
90Stellar evolution — Life cycle of a Sun like star Stellar evolution is the process by which a star undergoes a sequence of radical changes during its lifetime. Depending on the mass of the star, this lifetime ranges from only a few million years (for the most… …
