Jaspal Chadha - London Astrophotography
M13 Cluster
M13, the Great Cluster in Hercules, teeters on the edge of naked eye visibility and appears in binoculars as a small, circular, hazy glow. It contains over 300,000 stars, and its luminosity is 300 thousand times the Sun.
Globular star clusters, unlike open star clusters such as the Pleiades, are tightly held together by gravity. Whereas open clusters break up after hundreds of millions of years, globular clusters remain intact after billions of years.
Equipment Used
26/06/2015 - LONDON
ALTAIR ASTRO RC 250TT
QHY9S MONO CCD
BAADER FILTERS
LRGB EACH AT 3 X 300s
IOPTRON CEM 60 MOUNT
M13 Cluster
M13, the Great Cluster in Hercules, teeters on the edge of naked eye visibility and appears in binoculars as a small, circular, hazy glow. It contains over 300,000 stars, and its luminosity is 300 thousand times the Sun.
Globular star clusters, unlike open star clusters such as the Pleiades, are tightly held together by gravity. Whereas open clusters break up after hundreds of millions of years, globular clusters remain intact after billions of years.
Equipment Used
26/06/2015 - LONDON
ALTAIR ASTRO RC 250TT
QHY9S MONO CCD
BAADER FILTERS
LRGB EACH AT 3 X 300s
IOPTRON CEM 60 MOUNT