Celebrating the Beauty of the Night Sky
M13 Hercules Globular Cluster
M13 | Messier 13 | NGC 6205
Just barely visible to the naked eye, the Great Hercules Globular is 150 light years in diameter and contains over 300,000 stars magnitude 12 and dimmer. This is a Class V globular with an intermediate density of stars at its core.

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All Images of M13 Hercules Globular Cluster
20 May 2017

11 Jul 2015

6 Jun 2013

11 Sep 2010

19 Jun 2004

Night of:Saturday May 20, 2017
Site:Laguna Niguel
Local Time:11:30 PM | May 20, 2017
RA:16h 41m 41s
Declination:+36d 27' 36"
Distance:22,200 light years
Magnitude:+5.8 mV
Camera Settings:
Camera:Celestron NightScape + f/6.3 Reducer
Pixel Scale:1.45 arcsec
Image Size:1431 x 1026 pixels (1.5 MP)
34.6' x 24.8'
Exposure:30 sec
Stacked Frames:49
Total Integration:25 minutes
Post Processing:t-shirt flats
stacked in aa6
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