Hemisphere:  Northern  ·  Constellation: Lacerta (Lac)
LBN 438 & Background Galaxies, 



    
        

            Dave (Photon)
LBN 438 & Background Galaxies
Powered byPixInsight
LBN 438 & Background Galaxies, 



    
        

            Dave (Photon)
LBN 438 & Background Galaxies
Powered byPixInsight

Technical card

Imaging telescopes or lenses: ASA10N-OK3 10" f/3.6 Newtonian Astrograph

Imaging cameras: FLI ML8300

Mounts: ASA DDM85X-SL

Focal reducers: ASA Wynne 3" Reducer Corrector 0.73x - 3 KORRR

Software: CCDStack  ·  Astrooptik - Dipl. Phys. Dr. Philipp Keller Sequence 9  ·  ASA Autoslew  ·  TheSkyX

Filters: Astrodon Tru-Balance Generation 2 E-Series - L 50mm - NIR Blocked  ·  Astrodon Tru-Balance Generation 2 E-Series - R 50mm - NIR Blocked  ·  Astrodon Tru-Balance Generation 2 E-Series - G 50mm - NIR Blocked  ·  Astrodon Tru-Balance Generation 2 E-Series - B 50mm - NIR Blocked

Accessory: FLI CFW-2-7 50mm round 7 position filter wheel


Dates:Sept. 17, 2012Sept. 18, 2012

Frames:
Astrodon Tru-Balance Generation 2 E-Series - B 50mm - NIR Blocked: 13x600" (2h 10') -30C bin 1x1
Astrodon Tru-Balance Generation 2 E-Series - G 50mm - NIR Blocked: 13x600" (2h 10') -30C bin 1x1
Astrodon Tru-Balance Generation 2 E-Series - L 50mm - NIR Blocked: 23x1200" (7h 40') -30C bin 1x1
Astrodon Tru-Balance Generation 2 E-Series - R 50mm - NIR Blocked: 13x600" (2h 10') -30C bin 1x1

Integration: 14h 10'

Darks: 40

Flats: 15

Flat darks: 40

Bias: 40

Avg. Moon age: 2.09 days

Avg. Moon phase: 5.19%

Bortle Dark-Sky Scale: 2.00

Mean SQM: 21.52

Mean FWHM: 2.17


Basic astrometry details

Astrometry.net job: 97969

RA center: 22h 41' 16"

DEC center: +37° 46' 8"

Pixel scale: 1.531 arcsec/pixel

Orientation: 170.769 degrees

Field radius: 0.853 degrees


Resolution: 3221x2390

Description

This image is a 14 hour integration of Lynds Bright Nebula LBN 438 captured at F/2.8 700mm FL with my ASA N10 Newtonian Astrograph. This is a dark nebula in a the constallation Lacerta.

The image was processed in PixInsight by Yuriy Toropin of Moscow Russia. Thank you Yuriy.

While the cold dark nebula is the focus of the image what is most interesting are the galaxies in the background. Take a look around and see how many you can find. I have discovered 11. The face on galaxy at the top just left of center is PGC 69439 and the face on galaxy just above the second red star to the left of the skinny center part of the nebula is PGC-69518 and is estimated to be 195 million lights years distant.

On the right hand side of the nebula, just to the left and up from the largest red star is PGC-69400, another face on galaxy.

Another clear face on galaxy can be found in the bottom left hand portion of the image, near the largest bright blue star. Just under the top left hand difraction spike is PGC 2101898.

Overall, I have counted 8 very distinct galaxies and over a dozen including some small smudges.

While the nebula is obviously the main focus of the image, the background galaxies are certainly a noteworthy subject of the image.

Comments

Sky plot

Sky plot

Histogram

LBN 438 & Background Galaxies, 



    
        

            Dave (Photon)