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

 


28 Αυγούστου 2023

Crescent nebula(NGC 6888) & Soap bubble- ZWO 533mc Pro

 



The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 250,000 to 400,000[citation needed] years ago. The result of the collision is a shell and two shock waves, one moving outward and one moving inward. The inward moving shock wave heats the stellar wind to X-ray-emitting temperatures. 
 
 
Telescope : SW Esprit 100ED
Mount : SW EQ6-ri 
Camera : ZWO 533 mc pro
Guiding : 8x50 SW finder with QHY 5IIL
Filters:   Total exposure time : 9 hours with differnts exposures(300, 600sec.) , L-enchance 1.25.
Programs I have used : Nina 2.2 _ PixInsight 1.8.9-1
Location: Grammatiko, Attiki

12 Αυγούστου 2023

M 27 Dumbbell Nebula--First light with ZWO 533mc pro--

 


6/4/2024 New version combine Optolong L-Enhance & Ir-cut filter from bortle 5 sky.


 

Old version with Baader UV-IRcut filter and 4 hours & 3 minutes, same from bortle 5 sky.

The Dumbbell Nebula (also known as the Apple Core Nebula, Messier 27, and NGC 6853) is a planetary nebula (nebulosity surrounding a white dwarf) in the constellation Vulpecula, at a distance of about 1360 light-years. It was the first such nebula to be discovered, by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and diameter of about 8 arcminutes, it is easily visible in binoculars and is a popular observing target in amateur telescopes

 

Telescope : SW Esprit 100ED
Mount : Skywatcher EQ6-ri 
Camera : ZWO 533 mc pro
Guiding :8x50 finder with QHY 5IIL
Filters:   Total exposure time : 81x180 (4hours & 3min) with flat & flatdarks but without Darks .
Programs I have used : Nina 2.2 _ PixInsight 1.8.9-1
Location: Grammatiko, Attiki


07 Ιουλίου 2023

Eyes Galaxies(Ngc 4438-4435)Markarian chain

 

The Eyes Galaxies (NGC 4435-NGC 4438, also known as Arp 120) are a pair of galaxies about 52 million light-years away in the constellation Virgo. The pair are members of the string of galaxies known as Markarian's Chain

Telescope : SW Esprit 100ED
Mount : Skywatcher AZ-EQ5 
Camera : Atik 460 mono
Guiding :ZWO off-axis guider with QHY 5IIL
Filters: L.R.G.B  Total exposure time : 5hours 40minutes from 3 nights 
Programs I have used : Nina 2.1 _ PixInsight 1.8.9
Location: Grammatiko, Attiki


 


01 Ιουλίου 2023

Western Veil nebula (HOORGB)

  The Western Veil (also known as Caldwell 34), consisting of NGC 6960 (the "Witch's Broom"),

 The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.

It constitutes the visible portions of the Cygnus Loop, a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago. At the time of the explosion, the supernova would have appeared brighter than Venus in the sky, and visible in the daytime. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon). While previous distance estimates have ranged from 1200 to 5800light-years, a recent determination of 2400 light-years is based on direct astrometric measurements. (The distance estimates affect also the estimates of size and age.)

 

Telescope : SW Esprit 100ED
Mount : Skywatcher EQ6-R 
Camera : Atik 460 mono
Guiding :ZWO off-axis guider with QHY 5IIL
Filters :Ha ,OIII,RGB Total exposure time : 13 hours & 24minutes
Programs I have used : Nina 2.1 _ PixInsight 1.8.9
Location: Grammatiko, Attiki

30 Μαρτίου 2023

NGC 4631 Whale galaxy & NGC 4656-7 in Lrgb

 

Telescope : SW Esprit 100ED
Mount : Skywatcher AZ-EQ5 GT
Camera : Atik 460 mono
Guiding :ZWO off-axis guider with QHY 5IIL
Filters :LRGB Total exposure time : 4 hours
Programs I have used : Nina 2.1 _ PixInsight 1.8.9
Location: Grammatiko, Attiki

NGC 4631 (also known as the Whale Galaxy or Caldwell 32) is a barred spiral galaxy in the constellation Canes Venatici. This galaxy's slightly distorted wedge shape gives it the appearance of a herring or a whale, hence its nickname. Because this nearby galaxy is seen edge-on from Earth, professional astronomer

NGC 4631 contains a central starburst, which is a region of intense star formation. The strong star formation is evident in the emission from ionized hydrogen and interstellar dust heated by the stars formed in the starburst. The most massive stars that form in star formation regions only burn hydrogen gas through fusion for a short period of time, after which they explode as supernovae. So many supernovae have exploded in the center of NGC 4631 that they are blowing gas out of the plane of the galaxy. This superwind can be seen in X-ray and in spectral line emission. The gas from this superwind has produced a giant, diffuse corona of hot, X-ray emitting gas around the whole galaxy.

NGC 4656/57 is a highly warped barred spiral galaxy located in the constellation Canes Venatici and is sometimes informally called the Hockey Stick Galaxies or the Crowbar Galaxy. Its unusual shape is thought to be due to an interaction between NGC 4656, NGC 4631, and NGC 4627. The galaxy is a member of the NGC 4631 Group. A Luminous Blue Variable in "super-outburst" was discovered in NGC 4656/57 on March 21, 2005.  



28 Ιανουαρίου 2023

IC 434_LHaRGB Horsehead and Flame nebula

 

 This is an old fits back to 2015 with WO FLT110 and Atik314mm. The deference is that the Ha is from my new setup SW Esprit 100 and Atik 460mm taken before 2 months.

-Telescope: William Optics FLT 110 with F/T focuser 3025 & SW Esprit 100
-Mount: Skywatcher EQ6 Skyscan pro and SW AZ-EQ5
-Chip: Atik 314L+ & Atik 460mm
-Guiding: TS finder 8x50 with Meade DSI I pro & ZWO offaxis guider
-Filter wheel: Starlight Xpress usb 7x1.25

 The Horsehead Nebula (also known as Barnard 33) is a dark nebula in the constellation Orion. The nebula is located just to the south of the star Alnitak, which is farthest east on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. The nebula was first recorded in 1888 by Scottish astronomer Williamina Fleming on photographic plate B2312 taken at the Harvard College Observatory. The Horsehead Nebula is approximately 1500 light years from Earth. It is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which bears some resemblance to a horse's head when viewed from Earth.

23 Ιανουαρίου 2023

NGC 7380 Wizard nebula_SHO

 


Telescope : SW Esprit 100ED
Mount : Skywatcher AZ-EQ5 GT
Camera : Atik 460 mono
Guiding :ZWO off-axis guider with QHY 5IIL
Filters :Astrodon Ha(5nm), Baader SII & OIII. Total exposure time :400 min from 2 different nights .
Programs I have used : Nina 1.11 _ PixInsight 1.8.9
Location: Grammatiko, Attiki

 NGC 7380 is a young[4] open cluster of stars in the northern circumpolar constellation of Cepheus, discovered by Caroline Herschel in 1787. The surrounding emission nebulosity is known colloquially as the Wizard Nebula, which spans an angle of 25. German-born astronomer William Herschel included his sister's discovery in his catalog, and labelled it H VIII.77. The nebula is known as S 142 in the 1959 Sharpless catalog (Sh2-142).[2] It is extremely difficult to observe visually, usually requiring very dark skies and an O-III filter. The NGC 7380 complex is located at a distance of approximately 8.5 kilolight-years from the Sun, in the Perseus Arm of the Milky Way.[2]
 
https://en.wikipedia.org/wiki/Milky_Way