18 Νοεμβρίου 2023

M 20 Trifid nebula(LRGB)

Capture by Telescope live and processing by A.Chondrogiannis


Telescope : Planewave CDK 24"  f 6.5
Mount : Mathis MI-1000/1250 with absolute encoders
Camera :  FLI PL 9000
Guiding : Astrodon MonsterMOAG & Starlight Xpress Ultrastar
Time:1h 18min
Programs I have used : PixInsight 1.8.8 & Photoshop CS6
Location: El Sause,Chile

The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region in the north-west of Sagittarius in a star-forming region in the Milky Way's Scutum-Centaurus Arm. It was discovered by Charles Messier on June 5, 1764.[4] Its name means 'three-lobe'. The object is an unusual combination of an open cluster of stars, an emission nebula (the relatively dense, reddish-pink portion), a reflection nebula (the mainly NNE blue portion), and a dark nebula (the apparent 'gaps' in the former that cause the trifurcated appearance, also designated Barnard 85). Viewed through a small telescope, the Trifid Nebula is a bright and peculiar object, and is thus a perennial favorite of amateur astronomers.

The most massive star that has formed in this region is HD 164492A, an O7.5III star with a mass more than 20 times the mass of the Sun. This star is surrounded by a cluster of approximately 3100 young stars.


 

13 Νοεμβρίου 2023

North America mosaic in Ha (3x3)

New version with more tools (6532x5469)

 

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