NGC 2633 and NGC 2634 - spiral and elliptical galaxies in the constellation Giraffe. They were discovered by Ernst Wilhelm Leberecht Tempel on August 11, 1882.
L = 17 * 1800 sec. bin1, RGB = 11 * 1000, 1100, 1200 sec. bin2, Ha = 13 * 1800 sec. bin2, in each channel.
Total exposition - 25 hours.
Pixinsight 1.8, Photoshop.
NGC 772 (also known as Arp 78) is an unbarred spiral galaxy approximately 130 million light-years away in the constellation Aries.
Around 200,000 light years in diameter, NGC 772 is twice the size of the Milky Way Galaxy, and is surrounded by several satellite galaxies.
L = 20 * 1800 sec. bin1, R = 12 * 900 сек. bin2, G = 12 * 1000 сек. bin2, B = 12 * 1100 сек. bin2.
Total exposition - 20 hours
Pixinsight 1.8 and Photoshop.
NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm. This 20×30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184, spanning over a larger area of 40 arcmin.
Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.
L = 13 * 1800 sec. bin1, R = 9 * 900 сек. bin2, G = 9 * 1000 сек. bin2, B = 9 * 1100 сек. bin2, Ha = 26 * 1800 сек. bin2.
Total exposition - 27 hours
Pixinsight 1.8 and Photoshop.
Messier 71 (also known as M71 or NGC 6838) is a globular cluster in the constellation Sagitta. It was discovered by Philippe Loys de Chéseaux in 1745 and included by Charles Messier in his catalog of comet-like objects in 1780. It was also noted by Koehler at Dresden around 1775.
The star cluster is at a distance of about 12,000 light years away from Earth and spans some 27 light years across. The irregular variable star Z Sagittae is a member of this cluster.
R = 11 * 500 sec. bin1, G = 11 * 600 sec. bin1, B = 11 * 700 sec. bin1.
PixInsight 1.8, Photoshop CC
