Andromeda XIX

<p>Andromeda XIX is a <a href="/facts/Satellite_galaxy/FMSSSqrc">satellite galaxy</a> of the <a href="/facts/Andromeda_Galaxy/MjmSLV6m">Andromeda Galaxy</a> (M31), a member of the <a href="/facts/Local_Group/kjUefCLr">Local Group</a>, like the <a href="/facts/Milky_Way_Galaxy/ulF6lccN">Milky Way Galaxy</a>. Andromeda XIX is considered "the most extended <a href="/facts/Dwarf_Galaxy/TKS7W9tA">dwarf galaxy</a> known in the Local Group", and has been shown to have a half-light <a href="/facts/Radius/9Gr9deYD">radius</a> of 1.7 <a href="/facts/Parsec/SwSsk57J">kiloparsec</a> (kpc). It was discovered by the <a href="/facts/Canada%25E2%2580%2593France%25E2%2580%2593Hawaii_Telescope/huj8fgn2">Canada–France–Hawaii Telescope</a>, and is thought to be a dwarf galaxy.
</p><p>As with other dwarf galaxies, Andromeda XIX is not producing new stars: 90% of its star formation occurred over 9 billion years ago. However, compared to dwarf galaxies of similar mass Andromeda XIX is extremely diffuse, like <a href="/facts/Antlia_II/ghpgNM74">Antlia II</a>. 
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Andromeda XIX open-in-new

Andromeda XIX