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Draco Triplet of Galaxies

Technical card

Imaging telescope or lens: Planewave CDK 12,5'' 12.5 CDK

Imaging camera: QSI 583wsg

Mount: apt1200gto AP1200

Software: CCD Autopilot 5

Resolution: 1500x1024

Dates: June 4, 2011

Frames: 42x600"

Integration: 7.0 hours

Avg. Moon age: 2.09 days

Avg. Moon phase: 4.85%

Astrometry.net job: 1511794

RA center: 234.672 degrees

DEC center: 59.357 degrees

Pixel scale: 0.953 arcsec/pixel

Orientation: 26.264 degrees

Field radius: 0.240 degrees

Locations: ImagingInfinity Observatory, Bethune, SC, United States

Description

Like a similar trio of galaxies in Leo, this grouping shows two spiral galaxies from different angles as well as a large elliptical galaxy. At the far left is NGC 5981, an edge-on spiral. In the center is NGC 5982 (also called Herschel H764-2). At the right is the beautiful spiral, NGC 5985. Although all three galaxies lie at roughly the same distance, 100 million light years, it is not yet determined that they are a true gravitationally linked cluster.

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Author

Hap Griffin
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Draco Triplet of Galaxies, Hap Griffin