Hemisphere:  Northern  ·  Constellation: Lacerta (Lac)
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LBN438; Lacerta, 


            Thomas V. Davis
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LBN438; Lacerta

Technical card

Astrometry.net job: 2096404

RA center: 22h 41' 1"

DEC center: +37° 48' 10"

Pixel scale: 1.385 arcsec/pixel

Orientation: 85.867 degrees

Field radius: 1.108 degrees

Resolution: 4800x3184

Locations: Thomas Davis, Inkom, ID, United States

Data source: Backyard


Lynds Bright Nebula 438; Lacerta
Astro Systeme Austria N12 f/3.5 astrograph
Total Exposure Time: 8 hours; LRGB 260:80:60:80 minutes, unbinned
July 2008; Inkom, ID

Comments: This dusty region in the summer sky is rarely imaged. This is a beautiful example of galactic dark nebulae at high latitudes that become visible through illumination by the interstellar radiation field this is known as Extended Red Emission (ERE). ERE is a dust-luminescence process, which appears in a broad band extending in wavelength across the R-band. ERE also often appears in narrow filaments on the edges of clouds and may therefore be mistaken for H-alpha emission. This nebula emits no significant H-alpha signal. It's shape reminds of a cometary globule in its very last phase before being dispersed (Schedler).


Sky plot

Sky plot


LBN438; Lacerta, 


            Thomas V. Davis