12 Φεβρουαρίου 2024

NGC 1333 Embryo nebula

 

Telescope : SW Esprit 100ED
Mount : SW EQ6-ri 
Camera : ZWO 533 mc pro
Guiding : 8x50 SW finder with QHY 5IIL
Filters:   Total exposure time : 185 x 3min from 3 different nights(23/9 - 13/10 & 14/10/2023)
Programs I have used : Nina 2.3 _ PixInsight 1.8.9-2
Location: Grammatiko, Attiki

NGC 1333 is a reflection nebula located in the northern constellation Perseus, positioned next to the southern constellation border with Taurus and Aries.It was first discovered by German astronomer Eduard Schönfeld in 1855. The nebula is visible as a hazy patch in a small telescope, while a larger aperture will show a pair of dark nebulae designated Barnard 1 and Barnard 2. It is associated with a dark cloud L1450 (Barnard 205). Estimates of the distance to this nebula range from 980–1,140 ly (300–350 pc).

This nebula is in the western part of the Perseus molecular cloud and is a young region of very active star formation, being one of the best-studied objects of its type. It contains a fairly typical hierarchy of star clusters that are still embedded in the molecular cloud in which they formed, which are split into two main sub-groups to the north and south. Most of the infrared emission is happening in the southern part of the nebula. A significant portion of the stars seen in the infrared are in the pre-main sequence stage of their evolution.

31 Ιανουαρίου 2024

Rosette Nebula (NGC 2244) in Ha filter

 

Telescope : SW Esprit 100ED
Mount : SW EQ6-ri 
Camera : Atik 460 mono
Guiding : 8x50 SW finder with QHY 5IIL
Filters:   Astrodon Ha 5nm(1.25)  28*600sec (26-01-24)
Programs I have used : Nina 2.3 _ PixInsight 1.8.9-2
Location: Grammatiko, Attiki   

The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter. 

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

 

21 Οκτωβρίου 2023

M 33(Triangulum galaxy) with ZWO 533mc pro

 

A new version with more better color  performance.
 
 The Triangulum Galaxy is a spiral galaxy 2.73 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC (New General Catalogue) 598. With the D25 isophotal diameter of 18.74 kiloparsecs (61,100 light-years), the Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Andromeda Galaxy and the Milky Way.

The galaxy is the smallest spiral galaxy in the Local Group (although the smaller Large and Small Magellanic Clouds may have been spirals before their encounters with the Milky Way), and is believed to be a satellite of the Andromeda Galaxy or on its rebound into the latter due to their interactions, velocities, and proximity to one another in the night sky. It also has an H II nucleus.

 Telescope : SW Esprit 100ED
Mount : SW EQ6-ri 
Camera : ZWO 533 mc pro
Guiding : 8x50 SW finder with QHY 5IIL
Filters:   Total exposure time : 3 hours and 6 minutes from 2 nights( 13/10 & 14/10)
Programs I have used : Nina 2.3 _ PixInsight 1.8.9-2
Location: Grammatiko, Attiki

M 51 LRGB Whirlpool Galaxy

 

The Whirlpool Galaxy, also known as Messier 51a (M51a) or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus. It lies in the constellation Canes Venatici, and was the first galaxy to be classified as a spiral galaxy. It is 32 million light-years away and 109,000 ly (33,280 pc) in diameter.

The galaxy and its companion, NGC 5195, are easily observed by amateur astronomers, and the two galaxies may be seen with binoculars. The Whirlpool Galaxy has been extensively observed by professional astronomers, and its pair with NGC 5195 who study it to understand galaxy structure (particularly structure associated with the spiral arms) and galaxy interactions. Its pair with NGC 5194 is among the most famous and relatively close interacting systems, and thus is a favorite subject of galaxy interaction models.

Telescope : SW Esprit 100ED
Mount : SW AZ-EQ5
Camera : Atik 460 mono
Guiding : 8x50 SW finder with QHY 5IIL
Filters:   Total exposure time : 2 hours and 33minutes from2 nights( 19/5 & 9/6)
Programs I have used : Nina 2.2 _ PixInsight 1.8.9-2
Location: Grammatiko, Attiki