Messier 13

M13, is the brightest globular cluster in the Northern sky.

In the Hercules constellation, it rises no higher than 20° here in Sydney.

(Fortunately, here in the Southern hemisphere, we can see two even more magnificent objects, Omega Centauri and 47-Tucanae).

Details:

Exposure: 3 x 5 min  ISO 1000
Gear: Skywatcher ED120 refractor, 840mm f/l, f/7, no filter, no flattener
Canon EOS 60D
Location: Stargard, The Oaks, NSW, with Macarthur  Astronomical Society.
Date: 2017-07-20

Object:

Messier 13, NGC 6205
Visual magnitude: +5.8
Apparent diameter: 20 arc-min
Actual diameter: 135  light years
Distance: 23,000 light years


Image © R.Powell


 

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s