Campo centrado na NGC6888, Nebulosa do Crescente na constelação do Cisne. Field centred on NGC6888, the Crescent Nebula in the constellation Cygnus.
Detalhes/ details:
Objetiva/ lens: Samyang 135mm f/2 @ f/4,0
Câmara/ camera: Atik One 6.0, sensor @ -12ºC..-18 ºC.
Montagem/ mount: Losmandy G11, Gemini II (Ovision)
Filtros/ filters: Astrodon 3 nm Ha, OIII
Ha (18 X 1800")
OIII (16X1800")
Combinação / combination: L(RGB) - Ha(Ha, 70%OIII+30%Ha, OIII)
Exposição total/ total exposure: 17h
Setembro-Novembro / September-November 2020
Software de aquisição/ Acquisition software: Sequence Generator Pro.
Processamento/ processing: Pixinsight
A NGC6888 obtida com o RC8" de 2019 foi integrada para melhor detalhe/ For better detail, the NGC6888 taken with the RC8" was blended in with photoshop.
Torres Novas, Portugal, Janeiro/ January 2021
Astrometry.net - Size 5.5X4,37 deg
Pixel scale 7,08 arcsec/pixel