Hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 5826  ·  NGC 5866
NGC 5688 /  M102 - Spindle Galaxy (zoom in for dust lane), 



    
        

            Jan Beckmann
NGC 5688 /  M102 - Spindle Galaxy (zoom in for dust lane)
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NGC 5688 / M102 - Spindle Galaxy (zoom in for dust lane)

NGC 5688 /  M102 - Spindle Galaxy (zoom in for dust lane), 



    
        

            Jan Beckmann
NGC 5688 /  M102 - Spindle Galaxy (zoom in for dust lane)
Powered byPixInsight

NGC 5688 / M102 - Spindle Galaxy (zoom in for dust lane)

Equipment

Imaging Telescopes Or Lenses
SkyWatcher Quattro 10" F/4
Imaging Cameras
ZWO ASI071MC Pro · QHYCCD ALCCD 9 - KAF 8300 M
Mounts
SkyWatcher AZ-EQ6 GT
Filters
Astronomik L1
Guiding Telescopes Or Lenses
TS Optics Guiderscope 50/205
Guiding Cameras
ZWO ASI178MM

Acquisition details

Frames:
72x600" (12h)
Astronomik L1: 11000x1" (3h 3' 20")
Integration:
15h 3' 20"
Bortle Dark-Sky Scale:
5.00

Basic astrometry details

Astrometry.net job: 4494597

RA center: 15h06m29s.8

DEC center: +55°4706

Pixel scale: 0.987 arcsec/pixel

Orientation: 289.257 degrees

Field radius: 0.783 degrees

Resolution: 4768x3139

Data source: Backyard

Description

NGC 5866 (also called the Spindle Galaxy or Messier 102) is a notably bright lenticular galaxy in the constellation of Draco. NGC 5866 was most likely discovered by Pierre Méchain or Charles Messier in 1781, and independently found by William Herschel in 1788. Measured orbital velocities of its globular cluster system imply that dark matter makes up only a comparably small fraction of all gravitationally interacting matter, making it one of the most dark matter devoid galaxies.

One of the most defining features of NGC 5866 is the extended dust disk, which is seen almost exactly edge-on as a thin line. This dust lane is highly unusual for a lenticular galaxy. The dust in most lenticular galaxies is generally found only near the nucleus and generally follows the light profile of the galaxies' bulges.

This dust disk may contain a ring-like structure, although the shape of this structure is difficult to determine given the edge-on orientation of the galaxy. It is also possible that the galaxy is a spiral galaxy that was misclassified as a lenticular galaxy because of its edge-on orientation, in which case the dust lane would not be too unusual.

With the method of short exposures or "Deep-Sky Lucky-Imaging" we are agle to resolve the dust lane and its details in a very high resolution standing out from the bright halo-like background of the galaxy.

Image also includes 11000*0.8s lucky imaging frames of the dust lane taken with an industrial high speed CCD.

Comments

Sky plot

Sky plot

Histogram

NGC 5688 /  M102 - Spindle Galaxy (zoom in for dust lane), 



    
        

            Jan Beckmann