Space and Astronomy Atlas

How The Universe Works
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Galaxies

58 of 284 entries in Celestial Objects. Click any to see everything it connects to.

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Large gravitationally bound systems of stars, gas and dust, classified by the Hubble sequences morphological classes: spiral, barred spiral, elliptical, lenticular and irregular or peculiar galaxies, plus dwarf and starburst variants and quasars as the visibly active nucleus of a distant galaxy. Belongs here: any entry whose defining scale is galactic. Does not belong here: a star cluster or nebula within a galaxy catalogued as its own entry, grouped under Star Clusters or Nebulae.

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