ngc7331

Wouter's Astro-photography

NGC7331

 

NGC7331 is a magnificent Galaxy in the constellation Pegasus. The galaxy shows a very bright compact core and spiral arms with many patches of dust and gas. The spiral arms spread out fairly far but get very dim. Right to the east of the Galaxy three much smaller ones are seen. From top to bottom: NGC7336, NGC 7335 and NGC 7337. Several other galaxys can be spotted in the field of view.

 

Just outside of the field of view to the South-West there lays the famous Stephan's Quintet.

 

NGC7331 was discovered by William herschel in 1784. he described the galaxy as very bright and considerably brighter in the center. He also noted it's larger and very extended.

 

NGC7331 is also included as 30th entry in Sir Patrick Moore's Caldwell catalog.

 

The image above was made at my home location in Belgium under heavily light polluted skies. (click the image for a larger view.)

Image data

Exposure: 42x300s

Filters: Baader UHC-S

Camera temperature: -10°C

Date: October 6th 2013

Location: Zele, Belgium

 

 

Equipment

Camera: SBIG ST2000XM

Telescope: Skywatcher MN190

Mount: Software Bisque Paramount MX

 

Processing

Image aquisition: The Sky X

Preprocessing: Deep sky stacker

Fitsconversion: Fitsliberator

image processing: Adobe Photoshop CS5

 

 

Object data

Designations:

NGC7331

Caldwell 30

 

Constellation: Pegasus

 

Coördinates:

RA: 22h 37.1m

Dec: +34° 25'

 

Dimensions: 9.7' x 4.5'

 

Magnitude: 9.5

 

Surface brigtness: 13.3

 

Distance: 47 million lightyears

 

Discovered by William Herschel 1784

 

© Wouter D'hoye 2016 - Last update February 1st 2015