13 Απριλίου 2024

M 94 Croc's Eye Galaxy

 

Telescope : SW Esprit 100ED
Mount : SW EQ6-ri 
Camera : ZWO 533 mc pro
Guiding : 8x50 SW finder with QHY 5IIL
Filters:   Total exposure time : 105*180min  5hours 15min 12/06/2024
Programs I have used : Nina 2.3 _ PixInsight 1.8.9-2
Location: Grammatiko, Attiki

Messier 94 (also known as NGC 4736, Cat's Eye Galaxy, Crocodile Eye Galaxy, or Croc's Eye Galaxy) is a spiral galaxy in the mid-northern constellation Canes Venatici. It was discovered by Pierre Méchain in 1781, and catalogued by Charles Messier two days later. Although some references describe M94 as a barred spiral galaxy, the "bar" structure appears to be more oval-shaped. The galaxy has two ring structures.

M94 is classified as having a low ionization nuclear emission region (LINER) nucleus.[11] LINERs in general are characterized by optical spectra that reveal that ionized gas is present but the gas is only weakly ionized (i.e. the atoms are missing relatively few electrons).

07 Απριλίου 2024

M 63 Sunflower with 533mc pro

Telescope : SW Esprit 100ED
Mount : SW EQ6-ri 
Camera : ZWO 533 mc pro
Guiding : 8x50 SW finder with QHY 5IIL
Filters:   Total exposure time : 100*180min  5hours 05/06/2024
Programs I have used : Nina 2.3 _ PixInsight 1.8.9-2
Location: Grammatiko, Attiki 

Messier 63 or M63, also known as NGC 5055 or the seldom-used Sunflower Galaxy, is a spiral galaxy in the northern constellation of Canes Venatici with approximately 400 billion stars. M63 was first discovered by the French astronomer Pierre Méchain, then later verified by his colleague Charles Messier on June 14, 1779. The galaxy became listed as object 63 in the Messier Catalogue. In the mid-19th century, Anglo-Irish astronomer Lord Rosse identified spiral structures within the galaxy, making this one of the first galaxies in which such structure was identified.


 

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