Hemisphere:  Northern
Hundreds of thousands stars and a darkness oasis, 



    
        

            Antonio F. Sánchez
Hundreds of thousands stars and a darkness oasis
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Technical card

Imaging telescopes or lenses: ASA N12 astrograph

Imaging cameras: FLI ML8300

Mounts: ASA DDM85 S-XL

Filters: Optec 50mm B  ·  Optec 50mm G  ·  Optec 50mm R  ·  Optec 50mm L

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


Dates:June 16, 2015June 18, 2015June 21, 2015

Frames:
Optec 50mm B: 12x480" -25C bin 1x1
Optec 50mm G: 10x480" -25C bin 1x1
Optec 50mm L: 36x360" -25C bin 1x1
Optec 50mm R: 12x480" -25C bin 1x1

Integration: 8.1 hours

Avg. Moon age: 12.03 days

Avg. Moon phase: 9.13%

Bortle Dark-Sky Scale: 2.00


Basic astrometry details

Astrometry.net job: 672996

RA center: 19h 46' 23"

DEC center: +28° 5' 9"

Pixel scale: 1.207 arcsec/pixel

Orientation: 0.795 degrees

Field radius: 0.587 degrees


Resolution: 620x466

Description

Hundreds of thousand stars..and a darkness "oasis" ..

A LDN 810 is a dark nebula that was first cataloged by B.T. Lynds in 1962. The dark region at the center contains gas and dust out of which new stars are forming. A bipolar outflow of gas from one of these stars has also been detected.
LDN 810 is a dark nebula in Vulpecula border with Cygnus,which is in the upper left ofthe image. Note the obscuring dust cloud continues south of image.. In the center of LDN 810 is the reflection nebula GN 19.43.3.01. LDN 810 is seen in IR light to be the birth ground of stars hidden by dust in visible light. Several authors estimate the distance between 6000 to 8000 lightyears.
SH2-92 provides the faint red background,very weak.
Young Stellar Objects (YSOs) are stars in the first phase of theirs lives, before they enter the main sequence of the Hertzsprung-Russell diagram and are fed by stably hydrogen fusion. YSOs are formed by contraction (and fragmentation) of molecular clouds.
Information Credits: NOAO, Antonio F.Sánchez

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Antonio F. Sánchez
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Hundreds of thousands stars and a darkness oasis, 



    
        

            Antonio F. Sánchez