Sentences with phrase «arc minutes diameter»

On about the western edge of M24, 12th - magnitude planetary nebula NGC 6567, of about 8 arc minutes diameter, can be found, a foreground object at a distance of about 4,000 light - years.

Not exact matches

And if you can split Epsilon, you've resolved 3.5 arc minutes — about one - eighth the diameter of the moon.

At a distance of 2,150 light years, the apparent diameter of this 6 - 7th mag object, 27 arc minutes, corresponds to about 15 light years (Kenneth Glyn Jones» figure of 35» would correspond to about 20 light years).

This planetary nebula is certainly the most impressive object of its kind in the sky, as the angular diameter of the luminous body is nearly 6 arc minutes, with a faint halo extensing out to over 15», half the apparent diameter of the Moon (Millikan 1974).

However, the cluster has a large tidal radius, a region beyond which member stars can not escape, which spans 18.34 arc minutes, or 139 light years in linear diameter.