Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 3  ·  NGC 5272
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Messier Object 3 - 5/3/2010, 


Messier Object 3 - 5/3/2010
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Messier Object 3 - 5/3/2010

Technical card

Imaging telescopes or lenses: Stellarvue SV105

Mounts: CGEM

Guiding telescopes or lenses: Orion ST 80

Software: PixInsight  ·  PHD guiding  ·  Nebulosity

Filters: Hutech IDAS LPS P2 2"

Dates:May 2, 2010

Hutech IDAS LPS P2 2": 10x10" (1' 40") bin 1x1
Hutech IDAS LPS P2 2": 10x150" (25') bin 1x1
Hutech IDAS LPS P2 2": 10x30" (5') bin 1x1
Hutech IDAS LPS P2 2": 12x300" (1h) bin 1x1
Hutech IDAS LPS P2 2": 10x60" (10') bin 1x1

Integration: 1h 41' 40"

Avg. Moon age: 18.79 days

Avg. Moon phase: 82.78%

Basic astrometry details

Astrometry.net job: 115074

RA center: 13h42m17s.5

DEC center: +28°2410

Pixel scale: 3.618 arcsec/pixel

Orientation: -91.854 degrees

Field radius: 1.138 degrees

Resolution: 620x388


Messier Object 3, located in Canes Venatici, is one of about 150 globular clusters that orbit our galactic core. Globular clusters are some of the most ancient objects in our galaxy. Nobody is quite sure how they form or what role they are intended to play. This particular cluster is comprised of over 500,000 stars all clumped together in a spherical formation. Some of these clusters have a collective density to rival smaller dwarf galaxies. Astronomers have even suggested that the density in some globular clusters may be sufficient enough to warrant the existence of a black hole.

This cluster is some 34 thousand light years distant and is approximately 8 billion years old.


Sky plot

Sky plot


Messier Object 3 - 5/3/2010,