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The eye of Perseus, 





    
        

            Antonio F. Sánchez
The eye of Perseus

Technical card

Resolution: 2300x1711

Dates:Nov. 27, 2013Nov. 28, 2013Nov. 29, 2013Dec. 1, 2013

Frames:
Optec 50mm B: 19x600" -25C bin 1x1
Optec 50mm G: 14x600" -25C bin 1x1
Optec 50mm L: 42x600" -25C bin 1x1
Optec 50mm R: 15x600" -25C bin 1x1

Integration: 15.0 hours

Avg. Moon age: 25.49 days

Avg. Moon phase: 19.16%

Bortle Dark-Sky Scale: 2.00

Astrometry.net job: 142349

RA center: 53.802 degrees

DEC center: 38.015 degrees

Pixel scale: 1.444 arcsec/pixel

Orientation: -179.002 degrees

Field radius: 0.575 degrees

Description

As Greek mythology told us: ....: "So it is that Perseus found the cave of the three Graeae women. The Graeae shared a single eye for all three of them which they constantly fought over..:". Perseus took it.

vdB 18 seems to be a deep , fix eye ,looking impassive....

Sidney van den Bergh's comprehensive catalog of galactic reflection nebulae, published in 1966, contains 158 entries representing nebulosity around BD- and CD-type stars north of -33d and as identified in both red and blue Palomar Sky Survey prints. These entries represent diffuse reflection nebulae which are illuminated by one or more background stars and, in other instances, by the integrated light of the Milky Way.vdB 18 is catalogued as Type II (star outside the nebulosity) and Surface brightness F (Faint). This nebula is rarely imaged (I can´t find any image.. just some widefield ones)..and never detailed.The central star is V496 Per -- Variable Star of alpha2 CVn type. The nebula is surrounded by dust ... dust everywhere from the Lynds Dark nebula LDN 1434 and Lynd´s Bright nebulas LBN 720 and 721.A dozen of galaxies emerge between dust.vdB 18 seems to be an open eye
The eye of Perseus.

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afesan
Antonio F. Sánchez
License: None (All rights reserved)
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The eye of Perseus, 





    
        

            Antonio F. Sánchez