An
extragalactic planet is a planet that is outside the Milky Way Galaxy . Other terms used to describe these are
extragalacticKaynak: Extragalactic planetThe cosmic distance ladder (also known as the
extragalactic distance scale) is the succession of methods by which astronomers determine
Kaynak: Cosmic distance ladderThe diffuse
extragalactic background light (EBL) is all the accumulated radiation in the Universe due to star formation processes, plus a
Kaynak: Extragalactic background lightbillions of times stronger than the average maser in the Milky Way, and
extragalactic maser encompasses all masers found outside the Milky Way.
Kaynak: MegamaserBL Lacertae or BL Lac is a highly variable,
extragalactic AGN (active galactic nucleus or active galaxy ). It was first discovered by
Kaynak: BL LacertaeThe Ohio Sky Survey was an astronomical survey of
extragalactic radio source s. Data were taken between 1965 and 1971 using the Big Ear
Kaynak: Ohio Sky SurveyMattig's formula is one of the most important formulae in observational cosmology and
extragalactic astronomy which gives relation between
Kaynak: Mattig formulaso far are within our home galaxy the Milky Way ; however, there have been a small number of possible detections of
extragalactic planet s.
Kaynak: Extrasolar planetExtragalactic radio source is common but can lead to confusion, since many other
extragalactic objects are detected in radio surveys,
Kaynak: Radio galaxy