Contains: M 87, NGC 4486, NGC 4477, NGC 4473, NGC 4461, NGC 4459, NGC 4438, The Eyes, NGC 4435, NGC 4429, NGC 4425, M 86, NGC 4406, NGC 4402, NGC 4388, M 84, NGC 4374, NGC 4371, NGC 4313
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Technical card

Imaging telescope or lens: Meade ETX-70

Imaging camera: Canon EOS 350D / Digital Rebel XT

Mount: LXD75

Software: DeepSkyStackerPixInsight LEJasc Software Paintshop Pro

Resolution: 1024x640

Dates: April 10, 2010

Frames:
3x60" ISO1600
3x90" ISO1600

Integration: 0.1 hours

Darks: ~9

Flats: ~10

Bias: ~13

Avg. Moon age: 25.80 days

Avg. Moon phase: 14.97%

Bortle Dark-Sky Scale: 3.00

Mean SQM: 20.50

Astrometry.net job: 126279

RA center: 186.740 degrees

DEC center: 12.521 degrees

Pixel scale: 12.130 arcsec/pixel

Orientation: -87.268 degrees

Field radius: 2.035 degrees

Locations: Hoya Redonda - Valencia (Spain), Enguera, Valencia, Spain

Description

The Virgo Cluster, wich contains 1,300 galaxies aproximately, is at same time the central region of the Virgo Supercluster wich contains one hundred more of others clusters and galaxies groups (englobing our own Milky Way). Moreover at same time the superclusters are the bricks wich making up the large and huge walls wich shape the cavernous structure of the Universe.

Because to limitations in this deep field image of Virgo Cluster we can see "only" 31 galaxies (each one with its hundreds of billions of stars). The three brightest around magnitude 9 are: M 87 (up), M 86 (center), and M 84 (a bit more down); the rest of galaxies going down unto 13th magnitude.

More info into the Blog  C O M E T O G R A F I A  (in Spanish)

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Author

José J. Chambó
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Virgo Cluster, José J. Chambó