Observation by Richard Francis: Sharpless 2-171 - spider's webs of dust

Uploaded by

Richard Francis

Observer

Richard Francis

Observed

2020 Oct 10 - 23:43

Uploaded

2024 Mar 13 - 23:48

Objects

NGC7822

Planetarium overlay

Enable overlay
Show stars
Label stars
Show deep sky objects
Label deep sky objects
Show constellation boundaries
Show constellation sticks
Show constellation labels
Show RA/Dec grid

Constellation

Cepheus

Field centre

RA: 00^h03^m
Dec: +67°09'
Position angle: +0°10'

Field size

1°04' × 1°04'

Equipment

FLI Kepler 4040
Officina Stellare UCRC360
Paramount MEII

Exposure

SHO ~40x 600s each

Location

La Romieu, SW France

Target name

NGC 7822

Title

Sharpless 2-171 - spider's webs of dust

About this image

As usual the observation time needs a bit of latitude. The sub-exposures for this were taken over a 4 month period, from 16 Sep 2020 to 15 Dec 2020.

There is some confusion about the naming of this object. Some sources name it Sh 2-171 with NGC 7822 reserved for fainter nebulosity to its north. However, John Herschel, compiler of the New General Catalogue, who discovered it in 1829, described it terms which match this object.

The area is teeming with hot and young stars, whose outflowing energy has shaped the region, sweeping out gas and dust from the central region, leaving pillars and globules of denser material behind. There is also a tracery of darker dust across the central part of the image, like high-altitude clouds on Earth.

Files associated with this observation

NGC7822_v4.jpg (1.7 MB)

Like this image

Simon Paul Davis, Andy Wilson, Manolo_Rodriguez, Martina McGovern

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.