Description

Messier 109 is a good example of a barred spiral galaxy which can be found in the constellation Ursa Major, to the south east of the star Phecda.
This galaxy lies at a distance of about 55 million light years.

It is the brightest galaxy in the so called M109 group, which is a large group of galaxies all located in Ursa Major.
In March 1956, a type Ia supernova was observed in the southeast part of M109.

Other versions

Previous/older images:

Image data

Object info
Name M109
Type Barred spiral galaxy
Constellation Ursa Major
Right ascension 11h 57m 36s
Declination +53° 22′ 28″
Distance 55 Mly
Other designations NGC3992, PGC037617, UGC6937
Image info
Image date Mar. 18, 2009
Light frames 25x 4 min. @ ISO800 – IDAS LPS-P2
Total integration 1h 40m
Dark frames 25x
Flat frames 30x
Bias frames 20x
Software used DSLRFocus, Pixinsight LE, ImagesPlus, Photoshop CS2
Processing DSLRFocus was used to focus the scope and create the imaging series.
ImagesPlus 2.8 was used to calibrate the light frames with dark frames and flat frames.
Photoshop CS2 was used for post-processing, levels and curves adjustments.
DBE in Pixinsight LE.
Equipment info
Telescope Orion Optics SPX 10″ Newton
Corrector Televue 2″ Paracorr coma corrector (FL: 1.380mm f/5.43)
Mount Losmandy G-11
Camera Canon 20D
Guide camera Atik 1HS Mono
Guide scope Vixen VMC110L
Autoguide software Guidemaster
Filters 2″ IDAS LPS-P2
Location Landgraaf, The Netherlands
Image comments

Weird star shapes in this image, probably due to the camera not being correctly placed in the focuser.
Several small background galaxies can be seen in the image as well.