M 51 LRGB Whirlpool Galaxy

 

New version 2024

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. 

 

old version

 

 

 

 

 

 

 

 

 

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

 

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

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

Eyes Galaxies(Ngc 4438-4435)Markarian chain

 

New version with more stronger stars 2024

Old version

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

 

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

NGC 4631 Whale galaxy & NGC 4656-7 in Lrgb

 

New version 2024

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.