LBN 438



The sky is beautiful, but for every astrophotographer there are ideal fields, of the celestial regions that most ignite his passion. One of these for me is the CG 4 nebula in the Poppa which, morphologically similar to a worm of the well-known science fiction novel Dune, seems to want to eat the neighbor (only prospectively though) PGC 21338. All this unfortunately is at an impossible declination for the territory of our country (- 46 °). However, there is a much higher subject in the Boreal sky that reminds me very much of the region just mentioned. In this case, the LBN 483 seems to approach threateningly to another galaxy or the PGC 69439. A journey under the dark skies of the island of Elba in 2015 made possible the recovery that, however, lay for a long time, before being found, elaborated and presented.

LBN 438 is part of the OB1 nebular complex which, with a distance of just 370 parsecs (1200 light years), Lacerta OB1 appears as one of the closest OB associations in absolute terms to the solar system, together with the local associations Scorpius-Centaurus, Perseus OB3 and Sailing OB2; these, together with others placed at slightly greater distances, make up the Gould Belt, a brilliant ring of young and massive stars that develops along an immense expanding ring of gas known as the Lindblad Ring. [4] [5]

Lacerta OB1 is an excellent example of a not very large young star association, in which the star formation phenomena are nearing complete exhaustion; its relative proximity and its position far from the galactic plane and its sources of disturbance due to the overlap of multiple structures on the same line of sight, make it a field of research that is easy to study. (credit: Wikipedia)




Optics:Celestron C11 @  f1,9 Hyperstar mode 
Mount:Avalon M1 Fast Reverse
Camera:SX H694 unbinning
Location:Isola D’Elba
Exposure:Lum  : 228 min  Red: 30 min Blue : 36 min Green ( Red / Blue) 
Cooling: avg – 5°
Acquisition: Astroart, Sequence Generator Pro, PHD2, Avalon Star Go
Processing: Iris, PS, PixInsight, CCD sharp, 
SQM-L: 20.2
Note um: 78%



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