Diffuse Nebula
NGC 6523
18H 3.8m -24° 23'

Magnitude: 3.0
Size: 90' × 40'
Distance: 5,200 light-years


Suitable for beginners

Skill Level
M8 is one of the brightest nebulae in the sky. The only problem is capturing a large enough field of view.

AugustBest Month
Northern Hemisphere observers never get a chance to see M8 high in the sky. Your best bet is to capture it in August, when M8 is at its highest point.


Recommended Equipment
M8 is a large nebula; use a short focal length telescope such as a small refractor.

A medium-sized rich-field Newtonian might also be appropriate if you have a camera with a wide field of view (or want to capture a mosaic).


Image Stats
Meade 8" SN LXD75
Meade DSI Pro III
Meade RGB + IR filters

2 × 2 RGB mosaic; approximately 15 minutes per channel per frame. 2-minute subs.

Good transparency
25 July 2009
San Mateo, CA