Messier 3 globular cluster
Credit: Giuseppe Donatiello

127ED f/9

Tags:   Messier 3 globular cluster

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Messier 3
Credit: ESO/Dss2, Giuseppe Donatiello

FoV: 45'x45'
Colorized plate with RGB information taken with DSLR.

Tags:   Messier 3 globular cluster

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Messier 4
Credit: Giuseppe Donatiello, Giovanni Vincenzo Donatiello


Taken at Piano Visitone, Parco Nazionale del Pollino
Imaging telescopes: Maksutov 127/1500
Imaging camera: Canon EOS 4000D
Mounts: Synta EQ5


RA center: 16h 23' 39"
DEC center: -26° 31' 15"

Tags:   Messier 4 M4 globular cluster night sky astronomy space universe

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Messier 5
Credit: Giuseppe Donatiello

ED127 f/9 MaxCam 3M
300 sec + 1200x8 sec

2000 RA 15h 18m 33.22s Dec +02° 04′ 51.7″
Messier 5 or M5 (also NGC 5904) is a globular cluster in Serpens. It was discovered by Gottfried Kirch in 1702.
M5 is just visible to the naked eye as a faint blurred star. Binoculars or small telescopes will identify the object as non-stellar while larger telescopes will show some individual stars, of which the brightest are of apparent magnitude 12.2. Spanning 165 light-years in diameter, M5 is one of the largest known globular clusters. It is 13 billion years old and also one of the eldest globular clusters in our Galaxy. Its distance is about 24,500 light-years, and it contains more than 100,000 stars.

Tags:   messier 5 M5 globular cluster milky way night sky space universe

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Globular cluster M13 in Hercules with 300mm telephoto lens
Credit: Giuseppe Donatiello
J2000 RA 16h 41m 41.24s Dec +36° 27′ 35.5″
Messier 13 (M13), or NGC 6205, is a globular cluster of about 300,000 stars in Hercules, discovered by Edmond Halley in 1714, and catalogued by Charles Messier on June 1, 1764.
M13 is about 145 light-years in diameter and at 25,100 light-years away from Earth.
The Arecibo message of 1974, which contained encoded information about the human race, DNA, atomic numbers, Earth's position and other information, was beamed from the Arecibo Observatory radio telescope towards M13 as an experiment in contacting potential extraterrestrial civilizations in the cluster.

Tags:   universe M13 Messier 13 Hercules Globular Cluster globular cluster

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