Nebula NGC7129 and open cluster NGC7142 in Cepheus (ver.2018)

Explanation: This alluring telescopic image looks toward the constellation Cepheus and an intriguing visual pairing of dusty reflection nebula NGC 7129 (left) and open star cluster NGC 7142. The two appear separated by only half a degree on the sky, but they actually lie at quite different distances. In the foreground, dusty nebula NGC 7129 is about 3,000 light-years distant, while open cluster NGC 7142 is likely over 6,000 light-years away. In fact, the pervasive and clumpy foreground dust clouds in this region redden the light from NGC 7142, complicating astronomical studies of the cluster. Still, NGC 7142 is thought to be an older open star cluster, while the bright stars embedded in NGC 7129 are perhaps a million years young. The telltale reddish crescent shapes around NGC 7129 are associated with energetic jets streaming away from newborn stars. Surprisingly, despite the dust, far off background galaxies can be seen in the colorful cosmic vista. (text from apod.nasa.gov/apod/ap070913.html)

This picture was photographed during 2017 October 2018 December in Rozhen observatory, Bulgaria.

Equipment: home assembled reflector 10 in., f/3.8
Mount WhiteSwan-180 with a control system «Eqdrive Standart», camera QSI-583wsg, Televue Paracorr-2 and Off-axis guidecamera Lodestar SX-2 by Vasily Oleynik
L, Ha, RGB filter set Astrodon gen.II
L=10*900 + 14*600 seconds, RGB=15*600 seconds, Ha= 15*900 seconds bin.1 each filter, unbinned . About 16 hours.
FWHM source in L filter 2.22 "-3.17", sum in L channel - 2.61"
The height above the horizon from 65° to 35°, the scale of 1"/ pixel.
Processed Pixinsight 1.8 and Photoshop CS6
Many thanks to my colleagues and friends Vasily Oleynik, Edvard Povovich, Igor Dulevich for help in creating this astrophoto.

Taken in: Bulgaria / Smolyan / Smolyan (show map)

Taken on: January 6, 2018

Tags:

astrophoto

sky

Cepheus

NGC7129

NGC7142

Astrometrydotnet:id=nova2421027

Astrometrydotnet:status=solved

televue40 « less

Sets appears in: • My astrophotos

Groups appears in: • astrometry • Insight Astronomy Photographer of the Year more » • BBC Sky at Night and Stargazing Live • Astrophotography (Pixinsight Processing) • Universe Today • APOD Submissions • EAPOD « less

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