Messier 2. NGC 7089

Messier 2 or NGC 7089, as it is catalogued in the New General Catalogue, is a large Globular Cluster in the constellation Aquarius. Despite being one of the largest clusters (175 light years across), its distance from us (37,500 light years) prevents us from getting a more detailed view. It contains more than 150,000 stars, has a magnitude of +6.3 and is 13 Billion years old. This cluster has some of the oldest stars in our Milky Way, which have a very low metallicity (elements heavier than Hydrogen and Helium). This makes it extremely unlikely that they have any Earth-like planet around them.


This cluster orbits the Milky Way through the halo region and moves towards us at 5.3 km/sec.







Additional Information


Name(s): Messier 2, M2, NGC 7089

Type: Globular Cluster

RA:  21h 33m 27s

Dec: -00º 49’ 24”

Constellation: Aquarius

Size (arcmin): 16×16 arcmin

Magnitude: +6.3

Distance: 37,500 ly


Date: 2019-07-28 to 2019-08-01

Location:, SSO near Coonabarabran, NSW Australia

Size (arcmin): 31×31 arcmin

Telescope:  20” f/6.8 reflector

Camera: SBIG STX16803 (4096x4096pix)

Guiding: Astrodon MonsterMOAG off-axis guider

Total exposure: 9 hours (L: 3 hours; RGB: 6 hours)

Processing: CCDStack, Photoshop CC 2019

error: Content is protected !!