SUNSET: 
0
Photographer:
Sasho_Sk
Location of Photo:
Skopje, North Macedonia
Date/Time of photo:
October 30 and 31, 2021
Equipment:
SharpStar Askar FRA400 (focal length 400 mm), ZWO ASI294MM Pro; Guiding: ZWO ASI174MM Mini and ZWO OAG; AsiAir Plus; iOptron CEM40EC; Filters Chroma (3nm). Exposures: H-alpha 32×600″ Bin1, OIII 18×600″ Bin2 and SII 18×600″ Bin2 (total integration time 11 h 20'). Image processing using SHO palette with PixInsight.
Description:
The Heart Nebula (IC 1805, sh2-190) is a large emission nebula located in constellation Cassiopeia in the Perseus Arm of Milky Way Galaxy at an approximate distance of 7,500 light years from Earth. This giant gaseous cloud glows by ionization from intense UV radiation emitted by bright-blue supergiant young stars from the open cluster Melotte 15 near the nebula's center. Stellar winds of charged particles flows outward from the newborn stars by pushing its clouds of dust and gas and has sculpted the nebula in a shape that resembles a human heart. Clouds of interstellar dust create a dark silhouette in the center of the bright nebula.
