Cygnus Wall in NGC7000

NGC7000 is a well known emission nebula in Cygnus, close to prominent Deneb star. Whole NGC7000 North America is large cloud of interstellar matter that covers area of several apparent Moon size. But its surface brightness is low, so it is an extreme object for naked eye observations, and at least binoculars are required to spot it. North America and IC5070 Pelican nebulae are a part of the same molecular cloud. Recent infrared studies indicates, that star denominated 2MASS J205551.25+435224.6 may be responsible for ionisation of this cloud. This is hot O-type star obscured with clouds of dark matter, and invisible to visual observations. Distance to NGC7000 is estimated to about 1800 light years.

Cygnus Wall is a part of NGC7000 nebula. It is area of active star formation. New born stars are embedded in the dark clouds in this area, and can be revealed in the infrared images of this region. The image below was made over few summer nights, when transparency was far from perfect, but seeing was good. And these conditions are reflected in the final image: detail is somehow good, but signal to noise ratio is low (for 400 minutes of integration time).

NGC7000 Cygnus Wall
Cygnus Wall fragment in NGC7000

Large version

Color version here

Cygnus Wall location in wide field image of NGC7000
Image technical data:
Date:       28-31 August, 2019
Location:   Nieborowice, Poland
Telescope:  Meade ACF 10"
Corrector:  AP CCDT67
Camera:     QHY163M, gain 100
Mount:      SW EQ6
Guiding:    SW 80/400 + ASI290MM
Exposure:   Ha 200x2 minutes
Conditions: seeing good, transparency average

Clear skies!

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