Galactocentric distance is a star's distance from the center of a galaxy. For example, our
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Messier 87 — Virgo A The Messier 87 galaxy. Observation data Epoch J2000 Constellation Virgo Right ascension … Wikipedia
Epsilon Eridani — Starbox begin name=Epsilon EridaniStarbox observe epoch=J2000.0 constell=Eridanus ra=RA|03|32|55.8442cite web url=http://simbad3.u strasbg.fr/sim id.pl?protocol=html Ident=HD+22049 title=HD 22049 Variable of BY Dra type work=SIMBAD… … Wikipedia
Sagittarius Dwarf Elliptical Galaxy — Infobox Galaxy caption = name = Sagittarius Dwarf Elliptical Galaxycite web title=SIMBAD Astronomical Database work=Results for Sagittarius Dwarf Spheroidal url=http://simbad.u strasbg.fr/Simbad accessdate=2006 11 28 ] epoch = J2000 type =… … Wikipedia
Sigma Draconis — Starbox begin name=Sigma Draconis Starbox observe epoch=J2000 constell=Draco ra=RA|19|32|21.5908cite web url=http://simbad.u strasbg.fr/simbad/sim id?Ident=NSV%2012176 protocol=html title=SIMBAD Query Result: NSV 12176 Variable Star… … Wikipedia
Perigalacticon — is an apsis. It is the point in a star s orbit around a galaxy when the it lies closest to the galactic center. The Sun is presently near its perigalacticon. Perigalacticon may also refer to a galaxy s closest point (Galactocentric distance) as… … Wikipedia
Galactocentrism — In astronomy, Galactocentrism is the theory that our sun is at or near the center of the galaxy. Observations by William Herschel in 1785 indicated that the Milky Way was a separate disk shaped galaxy with the sun in a central position. Although… … Wikipedia
Proper motion — The proper motion of a star is its angular change in position over time as seen from the center of mass of the solar system.[1] It is measured in seconds of arc per year, arcsec/yr, where 3600 arcseconds equal one degree.[2] This contrasts with… … Wikipedia
Dwingeloo 1 — WISE infrared image of Dwingeloo 1 Observation data (J2000 epoch) Constellation Cassiopeia … Wikipedia
Sombrero Galaxy — For other uses, see M104 (disambiguation). Sombrero Galaxy[1][2] … Wikipedia
Messier 94 — For other uses, see M94 (disambiguation). Messier 94[1][2][3] … Wikipedia
