It is at a co-moving radial distance of and subtends 25 arcminutes on the sky. The cluster subtends a maximum arc of approximately 8 degrees centered in the constellation Virgo. The arc subtends an angle of magnitude at the centre. Angle "DVC" subtends arc "DC" on the circle. A 20/20 letter subtends 5 minutes of arc total. A bract (9-30 mm long) subtends the inflorescence, which has several flowers. The larger the angle an object subtends, the larger the apparent size of the object. The Earth subtends an angle of about two degrees when seen from the Moon. It is possible to determine the perceived angle which the rainbow subtends as follows. The window is irregular in outline and subtends about 1 degree of the sky.