Hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 5976  ·  NGC 5981  ·  NGC 5982  ·  NGC 5985
The Draco Triplet - NGC 5985, 5982, 5981, 


            Joshua Bury
The Draco Triplet - NGC 5985, 5982, 5981
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The Draco Triplet - NGC 5985, 5982, 5981

Technical card

Imaging telescopes or lenses: C9.25

Imaging cameras: SBIG ST-4000XCM

Mounts: CGEM

Guiding telescopes or lenses: Orion 50mm GuideScope

Guiding cameras: SBIG ST-i Mono

Focal reducers: Celestron f/6.3 Focal Reducer/Corrector

Dates:Aug. 2, 2011

Frames: 90x180" (4h 30')

Integration: 4h 30'

Avg. Moon age: 3.03 days

Avg. Moon phase: 10.00%

Basic astrometry details

Astrometry.net job: 101275

RA center: 15h 38' 32"

DEC center: +59° 22' 8"

Pixel scale: 1.227 arcsec/pixel

Orientation: -89.797 degrees

Field radius: 0.451 degrees

Resolution: 620x621


The Draco Group (aka, the Draco Triplet) is a striking trio of galaxies in the constellation Draco.

Looks MUCH better on a dark background in the light box.

Technical info about the image:

Object: The Draco Group

Sky: LM ~5

Mount: CGEM

Imaging scope: C9.25 at f/6.3

Imaging FL: 1480mm

Imaging camera: SBIG ST-4000XCM

Lights: 90x180s (4.5h)

Calibration: 7 sky flats, 36 darks

Guide scope: Orion 9x50 finder scope

Guide camera: Meade DSI I (2s intervals)

Other details: Images acquired with CCDOPS v5, guided with PHD (using GPUSB), calibrated and stacked using Deep Sky Stacker, post-processed in Photoshop CS5.


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Sky plot

Sky plot


The Draco Triplet - NGC 5985, 5982, 5981, 


            Joshua Bury