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.  

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.

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

 

LBN 529 Cave Nebula LRGB/Ha

 

New Version 2023

 Telescope : SW Esprit 100ED

Mount : Skywatcher AZ-EQ5 GT

Camera : Atik 460 mono

Guiding : offaxis guider with QHY 5IIL

Filters :Baader LRGB Total exposure time : 9 hours and  5 minutes from 2 different nights .

Programs I have used : Nina 1.10 _ PixInsight 1.8.9_ Photoshop CS6

Location: Grammatiko, Attiki

Sh2-155 (also designated Caldwell 9, Sharpless 155 or S155) is a diffuse nebula in the constellation Cepheus, within a larger nebula complex containing emission, reflection, and dark nebulosity. It is widely known as the Cave Nebula, though that name was applied earlier to Ced 201, a different nebula in Cepheus. Sh2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 725 parsecs (2400 light-years) from Earth.

Sh2-155 was first noted as a galactic emission nebula in 1959 in the extended second edition of the Sharpless catalogue, being a part of the much larger Cep OB3 Association. Although Sh2-155 is relatively faint for amateur observation, some of its structure may be seen visually through a moderately sized telescope under dark skies.

Sh2-155 lies at the edge of the Cepheus B cloud (part of the Cepheus molecular cloud), and is ionized by young stars from the Cep OB3 association It has been suggested that radiation from the hot O-type star HD 217086 is compressing the region, triggering the formation of a new generation of stars. A study of the region's young stellar objects by the Chandra X-ray Observatory and Spitzer Space Telescope shows a progression of stellar ages in front of the cloud, supporting the hypothesis of triggered star-formation.

Leo Triplet (M 66 group) in Lrgb

  The Leo Triplet (also known as the M66 Group) is a small group of galaxies about 35 million light-years away in the constellation Leo. This galaxy group consists of the spiral galaxies M65, M66, and NGC 3628. 

The M96 Group is located physically near the Leo Triplet. These two groups may actually be separate parts of a much larger group, and some group identification algorithms actually identify the Leo Triplet as part of the M96 Group.

Telescope : SW Esprit 100ED

Mount : Skywatcher AZ-EQ5 GT

Camera : Atik 460 mono

Guiding : SW Evoguide 50mmED with QHY 5IIL

Filters :Baader LRGB Total exposure time : 10:30 minutes from 3 different nights

Programs I have used : Nina 1.10 _ PixInsight 1.8.8_ Photoshop CS6

Location: Grammatiko, Attiki

 

IC 410 The Tadpoles -SHO

 

New edition with more live process 2024

Old edition

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) 21x600, Baader O3 13x600, SII 9x600.Total : 7hours and 10min

Programs I have used : Nina 1.11 _ PixInsight 1.8.9

Location: Grammatiko, Attiki

The Tadpole Nebula (IC 410) is an H II region located approximately 12,400 light-years away in the northern constellation Auriga. It is associated with the young open cluster NGC 1893. The cluster has an apparent magnitude of 7.5 and an apparent size of 11 arcminutes. It is an easy target for small telescopes.

The dusty emission nebula IC 410 is ionized by five hot, blue, O-type stars, HD 242935 (O7.5V), BD +33 1025 (O7V), HD 242908 (O4.5V), HD 242926 (O7Vz), and TYC 2394-1214-1. These massive stars are believed to be the main sources of ionization in the region. They emit high-energy ultraviolet protons that excite the nebula and make it glow.

The nebula is more than 100 light-years across. It is part of a larger star-forming region that is also home to the nearby Flaming Star Nebula (IC 405).