M 4

80%  resolution (4.2MB)

Object identification (4.2MB)

Object data of Messier4

Object type: Globular star cluster (IX)
Size: 23'
Magnitude: 5.6 mag
Constellation: Sco
Distance: 7,200 Ly
Notes: Messier 4 is a bright globular star cluster located in the southern constellation Scorpius. It lies at an approximate distance of 7,200 light years from Earth, which makes Messier 4 one of the nearest globular clusters to Earth.

In the image above, M4 is visible on the right side. The bright star embedded in dust on the left side is Antares, the brightest star in the constellation Scorpion. NGC 6144 is another globular cluster in the above image, but with a distance of 29,000 light years it is much further away compared with M4.

Exposure data

Date: 2019-07-27 + 29
Location: ATHOS Centro Astronomico / La Palma (900m)
Telescope: Baader APO 95/560 CaF2 Travel Companion (f=560mm)
Camera: Canon EOS 6D (ISO800)
Mount: 10micron GM3000 HPS
Exposure time: 16x5min
Exposure time total: 1h 20min