Possible Clues:

• Only three-letter constellation other than Leo
• Latin altar
• Neighbor of Norma
• Former Fighting Irish coach Parseghian
• Constellation next to Corona Australis
• College football's Parseghian
• Constellation called 'the Altar'
• The Greeks believed its offerings' smoke formed the Milky Way
• Coach Parseghian of the Fighting Irish
• Constellation with a palindromic name