Clusters & Stars

The Great Globular Cluster in Hercules

Messier 13 is a globular cluster of about 300,000 stars in the constellation of Hercules.

Target details

Messier 13 is a globular cluster of about 300,000 stars in the constellation of Hercules. It is about 145 light-years in diameter, and is 25,100 light-years away from Earth. It also features the galaxy NGC 6207 which is 30 million light-years from Earth; hiding in the background is IC 4617 which is a staggering 500 million light-years from Earth.

Capture details

Data captured 27th May, 2017.
36x 4 minute exposures at ISO400.

Equipment details

Skywatcher Quattro 200 CF
NEQ6 Pro
Canon 40d (IR Filter removed)
Skywatcher ST-80
QHY5L-II

Processing details

This image was processed in Pixinsight & Lightroom.

Quick facts

What is The Great Globular Cluster in Hercules?
Messier 13 is a globular cluster of about 300,000 stars in the constellation of Hercules. It is about 145 light-years in diameter, and is 25,100 light-years away from Earth.
Where is it in the sky?
In the constellation Hercules.
What are its catalogue names?
M13, NGC 6207, IC 4617
When was this photo taken?
27 May 2017
What equipment was used?
Skywatcher Quattro 200 CF, NEQ6 Pro, Canon 40d (IR Filter removed), Skywatcher ST-80, QHY5L-II
Where was it taken from?
Lisburn, Northern Ireland.
Can I use this image?
It is © Pete Lawrence, all rights reserved. Personal use such as a wallpaper is fine; for anything else please ask first (see image use).
The Great Globular Cluster in Hercules: astrophotograph by Pete Lawrence