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North America Nebula, 





    
        

            John Reed
North America Nebula

North America Nebula

Acquisition type: Lucky imaging

Technical card

Resolution: 1056x1058

Dates:Sept. 18, 2019

Frames: 28x120"

Integration: 0.9 hours

Avg. Moon age: 18.67 days

Avg. Moon phase: 83.69%

Astrometry.net job: 2931946

RA center: 314.786 degrees

DEC center: 44.024 degrees

Pixel scale: 2.250 arcsec/pixel

Orientation: 359.367 degrees

Field radius: 0.467 degrees

Locations: Home Observatory, Cabot, Arkansas, United States

Data source: Backyard

Description

From Wikipedia, the free encyclopedia

The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). The remarkable shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico. It is sometimes incorrectly called the "North American Nebula".

The North America Nebula is large, covering an area of more than four times the size of the full moon; but its surface brightness is low, so normally it cannot be seen with the unaided eye. Binoculars and telescopes with large fields of view (approximately 3°) will show it as a foggy patch of light under sufficiently dark skies. However, using a UHC filter, which filters out some unwanted wavelengths of light, it can be seen without magnification under dark skies. Its prominent shape and especially its reddish color (from the hydrogen Hα emission line) show up only in photographs of the area.

The portion of the nebula resembling Mexico and Central America is known as the Cygnus Wall. This region exhibits the most concentrated star formation.

[ZWO ASI294MC Pro]
Debayer Preview=On
Pan=1008
Tilt=352
Output Format=FITS files (*.fits)
Binning=1
Capture Area=2112x2116
Colour Space=RAW16
High Speed Mode=Off
Turbo USB=80(Auto)
Flip=None
Frame Rate Limit=Maximum
Gain=348
Exposure=120
Timestamp Frames=Off
White Bal (B)=50(Auto)
White Bal (R)=46(Auto)
Brightness=30
Temperature=-10
Cooler Power=100
Target Temperature=-20
Cooler=On
Auto Exp Max Gain=285
Auto Exp Max Exp M S=30000
Auto Exp Target Brightness=100
Mono Bin=Off
Banding Threshold=35
Banding Suppression=0
Apply Flat=C:\Users\John\Desktop\SharpCap Captures\2019-09-17\Capture\flats\19_41_46.fits
Subtract Dark=C:\Users\John\Desktop\SharpCap Captures\darks\ZWO ASI294MC Pro\RAW16@2112x2116\120.0s\gain_347\dark_10_frames_-8.9C_2019-09-17T00_23_35.fits
#Black Point
Display Black Point=0
#MidTone Point
Display MidTone Point=0.5
#White Point
Display White Point=1
TimeStamp=2019-09-18T01:43:25.1765534Z
SharpCapVersion=3.2.5986.0

Comments

Author

John_Reed
John Reed
License: Attribution-NonCommercial Creative Commons
180
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North America Nebula, 





    
        

            John Reed