03 September 2019

Lobster Claw Nebula(Sh2-157)


Sh2-157 in HaRGB

 Sharpless 157, also known as the Lobster Claw Nebula, is a bright emission nebula that lies in the constellation Cassiopeia. It lies just south of the better-known Bubble Nebula (NGC 7635). Within this image of the Lobster Claw are a few other objects. Planetary Nebula PLN 110-0.1 is located near the center of the upper-right quadrant. The bright nebular spot near the center of the image is Lyn's Bright Nebula 537 (LBN537), also known as Sharpless 157a. The small cluster of stars just above the bottom pincer is Markarian 50 and the bright cluster of stars located above the top pincer is open cluster NGC 7510.

Telescope : TS 65Q apo
Mount : Skywatcher AZ-EQ5 GT
Camera : Atik 460 Exm
Guiding : Off-axis with Meade DSI 2
Filters : Astrodon Ha 5nm (29x900sec) all 1x1bin
             RGB Baader (12x300sec) all 1x1bin
Total exposure : 10 hours and 15 minutes from 2 different nights at Grammatiko,Attiki,GR


09 July 2019

North America &Pelican Nebula Mosaic


Mosaic 3x3 (9 panels) in Ha filter with Atik 460Exm 
Telescope : TS 65Q
Camera : Atik 460EXm
Guider : Off-axis with Meade DSI 2
Mount : Skywatcher AZ-EQ5 GT
Grammatiko,Attiki/GR
Total Time : 12 hours in 4 nights

29 June 2019

NGC 7822 in LHaO3RGB combination


NGC 7822 L(HaO3)RGB 
Telescope : TS 65Q
Camera : Atik 460EXm
Guider : Off-axis with Meade DSI 2
Mount : Skywatcher AZ-EQ5 GT
Grammatiko,Attiki/GR

NGC 7822 is a young star forming complex in the constellation of Cepheus. The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800–1000 pc distant, with the younger components aged no more than a few million years. The complex also includes one of the hottest stars discovered within 1 kpc of the Sun, namely BD+66 1673, which is an eclipsing binary system consisting of an O5V that exhibits a surface temperature of nearly 45,000 K and a luminosity about 100,000 times that of the Sun. The star is one of the primary sources illuminating the nebula and shaping the complex's famed pillars of creation-type formations, the elephant trunks.