Being the largest galaxy around can sometimes make you popular. Pictured is M31's companion galaxy M32 [ http://crux.astr.ua…]. M31 [ http://antwrp.gsfc.…], the Andromeda galaxy, is the largest galaxy in our Local Group [ http://www.csc.fi/j…] of galaxies - even our tremendous Milky Way Galaxy [ http://antwrp.gsfc.…] is smaller. Little M32 is visible in most pictures of M31 - it is the small circular spot north of M31's center. M32 is a dwarf elliptical galaxy [ http://www.physics.…]. Elliptical galaxies [ http://sousun1.phys…] have little or no measurable gas [ http://antwrp.gsfc.…] or dust [ http://antwrp.gsfc.…] - they are composed completely of stars [ http://antwrp.gsfc.…] and typically appear more red than spiral galaxies [ http://antwrp.gsfc.…]. Elliptical galaxies [ http://antwrp.gsfc.…] do not have disks - they generally have oblong shapes and therefore show elliptical profiles on the sky.
Explanation
Being the largest galaxy around can sometimes make you popular. Pictured is M31's companion galaxy M32 [ http://crux.astr.ua…]. M31 [ http://antwrp.gsfc.…], the Andromeda galaxy, is the largest galaxy in our Local Group [ http://www.csc.fi/j…] of galaxies - even our tremendous Milky Way Galaxy [ http://antwrp.gsfc.…] is smaller. Little M32 is visible in most pictures of M31 - it is the small circular spot north of M31's center. M32 is a dwarf elliptical galaxy [ http://www.physics.…]. Elliptical galaxies [ http://sousun1.phys…] have little or no measurable gas [ http://antwrp.gsfc.…] or dust [ http://antwrp.gsfc.…] - they are composed completely of stars [ http://antwrp.gsfc.…] and typically appear more red than spiral galaxies [ http://antwrp.gsfc.…]. Elliptical galaxies [ http://antwrp.gsfc.…] do not have disks - they generally have oblong shapes and therefore show elliptical profiles on the sky.
