NGC 34 [SEP] constellation
NGC 17
NGC 17, also known as NGC 34, is a spiral galaxy in the constellation Cetus. It is the result of a merger between two disk galaxies, resulting in a recent starburst in the central regions and continuing starforming activity. The galaxy is still gas-rich, and has a single galactic nucleus. It lies 250 million light years away. It was discovered in 1886 by Frank Muller and then observed again later that year by Lewis Swift.
Due to the major merger event NGC 17 has no
NGC 5866
NGC 5866 (also called the Spindle Galaxy or Messier 102) is a relatively bright lenticular or spiral galaxy in the constellation Draco. NGC 5866 was most likely discovered by Pierre Méchain or Charles Messier in 1781, and independently found by William Herschel in 1788.
Measured orbital velocities of its globular cluster system
imply that dark matter makes up only 34±45% of the mass within 5 effective radii;
a notable paucity.
Dust disk.
One of the most outstanding features of NGC 5866 is the