pleiadian

Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. The diffuse light from Andromeda is caused by the hundreds of billions of stars that compose it. The several distinct stars that surround Andromeda's image are actually stars in our Galaxy that are well in front of the background object. Andromeda is frequently referred to as M31 since it is the 31st object on Messier's list of diffuse sky objects. M31 is so distant it takes about two million years for light to reach us from there. Much about M31 remains unknown, including how the center acquired two nuclei. Ο πρώτος γαλαξίας που δοκιμάζω να βγάλω, η φίλη μας η Ανδρομέδα Αρκετά δύσκολο εγχείρημα αλλά με τις συμβουλές των διάφορων φίλων της AVAT κατάφερα να φέρω την φωτογραφία σε ένα αξιοπρεπές επίπεδο θα έλεγα.Ευχαριστώ όλα τα παιδιά που μου μετέδωσαν τις γνώσεις τους τόσο κατά τις λήψεις όσο και κατά την επεξεργασία Την αφιερώνω στον Νίκο (NikolasBushido) που μου πούλησε αυτό το εκπληκτικό τηλεσκόπιο και του την είχα υποσχεθεί!Να σαι καλά φίλε Location: Mount Parnonas - Greece Date: 18-19 August 2012 Scope: Officina Stellare Hyper APO 80 @ f4.8 FF/FR: Televue 0.8x Photo Reducer/Flattener Camera: QHY9 KAF8300 Mono Chip Temp: -20 C Filters: Astronomik Ha-L-R-G-B Mount: Skywatcher NEQ6 PRO + EQMOD Quiding: QHY5 + Baader UV/IR Cut + PHD Capture: Nebulocity 3 Light Frames: Ha: 6x600sec Bin1x1 LRGB: 12x600sec Bin1x1 Core: 12x120sec Bin1x1 Total: 9.5h Calibration Frames: 25x[Darks,Flats,Dark Flats,Bias] per channel

Η φωτογραφία μου από την 6η Πανελλήνια εξόρμηση ερασιτεχνών αστρονόμων στον Πάρνωνα Κάπου ανάμεσα στον χαβαλέ, την ανταλλαγή απόψεων, την παρατήρηση και τις βόλτες στο αστροχωριό είπα να πάρω και κανένα fit to σπίτι...Αφιερωμένη στους παλιούς και καινούργιους φίλους που παρευρέθησαν στην εξόρμηση Με το καλό και του χρόνου παιδιά! Gamma Cygni (γ Cyg, γ Cygni) is the Bayer designation for a star in the northern constellation Cygnus, forming the intersection of an asterism of five stars called the Northern Cross. It has the traditional name Sadr.With an apparent visual magnitude of 2.23, this is among the brighter stars visible in the night sky. Parallax measurements give a distance estimate of 1,800 light years (560 parsecs), with a 15% margin of error. The stellar classification of this star is F8 Iab, indicating that it has reached the supergiant stage of its stellar evolution. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.The spectrum of this star shows some unusual dynamic features, including variations in radial velocity of up to 2 km sec–1, occurring on a time scale of 100 days or more. Indeed, on the Hertzsprung–Russell diagram, Gamma Cygni lies close to the instability strip and its spectrum is markedly like that of a Cepheid variable.[3] This star is surrounded by a diffuse nebula called IC1318, or the Gamma Cygni region. Object: Gamma Cygni Nebulosity (HaRGB) Type: Diffuse Constellation: Cygnus Distance: 1.800 Light Years Location: Mount Parnonas - Greece Date: 20-21 July 2012 Scope: Officina Stellare Hyper APO 80 @ f4.8 FF/FR: Televue 0.8x Photo Reducer/Flattener Camera: QHY9 KAF8300 Mono Chip Temp:-20 C Filters: Astronomik Ha-R-G-B Mount: Skywatcher NEQ6 PRO + EQMOD Quiding: QHY5 + Baader UV/IR Cut + PHD Capture: Nebulocity 3 Light Frames: Ha: 12x600sec Bin1x1 RGB: 12x300sec Bin2x2 Total: 5h Calibration Frames: 20x[Darks,Flats,Dark Flats,Bias] per channel