The spider, the fly and the comet



mouse over for annotated version - click for full resolution

Image with the path of the comet during the 5h of integration.

In the right bottom part of the image we can see NGC 1931 or Sh 2-237; found in the constellation Auriga has been referred to as a "miniature version of the Orion Nebula", as it shares some of the same characteristics. It is a mixed emission-reflection nebula, and contains a smaller version of the Trapezium in its hot young star cluster centered in the emission nebula. The entire cluster/nebula complex is only about 3 arcmin in size. The distance from earth is estimated at about 7000 light years. [Wiki]
On the right we can see IC417 or the Spider Nebula; it's a wide emission nebula connected to the open cluster Stock 8, which is known to be a star forming region.
Together they form a picture named The Spider and the Fly, as IC seems to be ready to pray the little NGC1931.
In top right corner I framed also the comet 226/P Pigott-LINEAR-Kowalski.
This comet was spotted first by Edward Pigott on November 19th 1873 and then lost due to poor accuracy of measurements.
226 years later, in January 2003, a new comet was found by the LINEAR survey program and named C/2003A1; further observation made by R. Kowalski identified the object as the Pigott's lost comet.

Double processing for the image and the comet.


Optic SW Quattro 8S 200mm f/4 with Baader MPCC Mark III corrector
Camera Atik 383L+
Filters Baader L, R, G, B 36mm
Mount NEQ6 with EQASCOM
Guide
SW 70/500 with AlCCD5
Frame center
RA 05:29:21 DEC 34:22:50 J2000
Date
30th October 2016
Site
S.Barthelemy, Aosta Valley, Italy
Exposures L - 12x600s bin 1x1 @-10°C
R - 6x600s
G - 6x600s
B - 6x600s

Integration time - 5h

NGC1931

NGC1931

NGC1931

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