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Cave Nebula SH2-155, 


Cave Nebula SH2-155
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Cave Nebula SH2-155

Technical card

Imaging telescope or lens:SkyWatcher Esprit 100 ED f/5.5 APO

Imaging camera:ZWO ASI071MC-Cool

Mount:iOptron iEQ45Pro

Guiding telescope or lens:50mm Guidescope

Guiding camera:ZWO ASI174MM

Focal reducers:

Software:PHD guidingPixInsightDeepSkyStackerMain Sequence Software Sequence Generator ProADOBE Photoshop CC 2019

Filter:IDAS LPS-V4

Accessory:SkyShed POD XL5

Resolution: 4671x3156

Dates:Sept. 21, 2019

Frames: 680x120"

Integration: 22.7 hours

Darks: 0

Flats: 0

Flat darks: 0

Bias: 0

Avg. Moon age: 21.54 days

Avg. Moon phase: 56.49%

Bortle Dark-Sky Scale: None

Mean SQM: None

Mean FWHM: None

Temperature: None

Basic astrometry details job: 2971359

RA center: 22h 56' 46"

DEC center: +62° 33' 10"

Pixel scale: 1.780 arcsec/pixel

Orientation: 101.412 degrees

Field radius: 1.394 degrees

Locations: Dark Arts Observatory, Brockport, NY, United States

Data source: Backyard


The Cave nebula is an interesting complex with a lot going on. In the foreground is a molecular cloud that creates blue reflection nebulae around some of the stars. You can also see this as a faint blue-white haze in some parts of the image. Behind that are the tendrils of a dust cloud creating a dark nebula that obscures parts of the glowing red hydrogen cloud creating an emission nebula in the background.



License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


Cave Nebula SH2-155,