Swirls and Stars in IC 4678 . ... Credit Copyright: Ken Siarkiewicz Adam Block , NOAO , AURA , NSF Explanation: Swirls of gas and dust enrich this little observed starfield toward the constellation of Sagittarius . ... Prominent in the above image are large emission nebulas of red glowing gas highlighted by unusually bright red filaments. On the left, a band of thin dust preferentially reflects the blue light of a bright star creating a small reflection nebula. ... NASA Official: Jay Norris. ...