M13

M13 was discovered by Edmond Halley in 1714,it is about 145 light-years in diameter, and it is composed of several hundred thousand stars, the brightest of which is the variable star V11 with an apparent magnitude of 11.95. M13 is 25,100 light-years away from Earth.

 

Date of shoot: 24/4/14, 27/4/14, 30/4/14

L: 10 subs at 60s 1*1 , 28 subs at 300s 1*1

RGB: 10 subs at 40s 2*2 , 12 subs at 180s 2*2

Camera Starlight Express SXVR-H694

Sample Rate 0.98 asp at 1*1 , 1.97 asp at 2*2

Filter Wheel : Starlight Express Mini Wheel

Mount : Avalon fast Linear

Scope: Orion Optics UK AG10

Filters : Astrodon LRGB

 

Done