NGC 5866 [SEP] constellation
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
corresponding objects.
Although M101 and NGC 5866 are considered to be the two most likely candidates for M102, a few other objects have been suggested as potentially corresponding to this entry.
Candidate corresponding objects Other possible corresponding objects NGC 5879, NGC 5907, NGC 5908.
NGC 5879, NGC 5907, NGC 5905, and NGC 5908 are all galaxies near the position of NGC 5866. By that criterion, they may all be as likely as NGC 5866 to be the objects that correspond to M102. However, none of these