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Dark Nebula - LDN1251 and LBN558

Optics TEC 140APO with Flattener at f7.2
Mount AstroPhysics 900GoTo
Camera STL11000M
Filters Baader LHaRGB
Date July and August 2013
Location Antares Observatory
SQM-L 20.6 in average (9 nights)
Exposure LRGB = 9.3-4.3-2.7-3.3
total: 19.7h
FWHM 3.0 arcseconds
Programs used CCDAutoPilot, MaxIm DL, PixInsight, eXcalibrator, Photoshop CS6

Lynds Dark Nebula, LDN 1251, and Lynds Bright Nebula, LDN 558, build a faint nebula complex in the constellation Cepheus.
Below are cropped areas of the LDN1251 center at 100% resolution, and background galaxies at 150% resolution:

Center of LDN1251 Galaxies around LDN1251

ldn1251 preview

click here for a 75% size image, 3004x1985 (4443KB)

The luminance image can be found here.

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