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Showing posts with label Nebulae in RGB (OSC). Show all posts
Showing posts with label Nebulae in RGB (OSC). Show all posts

Friday, August 13, 2010

NGC 6960 - Western Veil Nebula & NGC 6992 - Eastern Veil Nebula

NGC 6992 - Eastern Veil Nebula 'Network Nebula'



Telescope: APM Astrograph 107, f/6.5 with Baader Steeltrack Focuser and 2.5'' TS FF
Mount: HEQ5 Pro
Camera: QHY8
Filter: IDAS LPS
Guidescope: Skywatcher 70/500mm
Guide with LVI SmartGuider
Exp. Time: 3hours, bin 1x1
Calibration Frames: 30 flat, 50 bias
Capture: Nebulosity 2.2.5
Stack: Nebulosity 2.2.5
Processing: Photoshop CS3
Date: 14 Jul 2010
Location: Tiros Arkadias, GR


NGC 6960 - Western Veil Nebula 'Witch's Broom Nebula'



Telescope: APM Astrograph 107, f/6.5 with Baader Steeltrack Focuser and 2.5'' TS FF
Mount: HEQ5 Pro
Camera: QHY8
Filter: IDAS LPS
Guidescope: Skywatcher 70/500mm
Guide with LVI SmartGuider
Exp. Time: 3 hours & 40 mins, bin 1x1
Calibration Frames: 50 flat, 50 bias
Capture: Nebulosity 2.2.5
Stack: Nebulosity 2.2.5
Processing: Photoshop CS3
Date: 9 Jul 2010
Location: Parnon Mount, GR

The Veil Nebula, is part of the Cygnus Loop, radio source W78, or Sharpless 103. Other parts of the loop include the 'Eastern Veil', the 'Western Veil' or 'Witch's Broom Nebula', and Pickering's Triangular Wisp. It is a large, relatively faint supernova remnant in the constellation Cygnus. The source supernova exploded some 5,000 to 8,000 years ago, and the remnants have since expanded to cover an area of ~3x3 degrees; about 6 times the diameter or 36 times the area of a full moon.

The distance to the nebula is not precisely known, with estimates ranging from 1,400 to 2,600 light-years. It was discovered on 1784 September 5 by William Herschel. He described the western end of the nebula as "Extended; passes thro' 52 Cygni... near 2 degree in length." and described the eastern end as "Branching nebulosity... The following part divides into several streams uniting again towards the south."

The Hubble Space Telescope captured images of the nebula. The analysis of the emissions from the nebula indicate the presence of oxygen, sulfur, and hydrogen.

Veil Nebula Wiki

Sunday, August 1, 2010

M27 - Dumbbel Nebula




The nebula forms as the star's outer layers are expelled into space, with a visible glow generated by atoms excited by the dying star's intense but invisible ultraviolet light. The Dumbbell Nebula, the beautifully symmetric interstellar gas cloud, is over 2.5 light-years across and about 1,200 light-years away in the constellation Vulpecula.

This impressive color composite highlights subtle jet features in the nebula. It was recorded with a robotic telescope sited in Hawaii using narrow band filters sensitive to emission from oxygen atoms (shown in green) and hydrogen atoms. The hydrogen emission is seen as red (H-alpha) and fainter bluish hues (H-beta).

Telescope: APM Astrograph 107, f/6.5 with Baader Steeltrack Focuser and 2.5'' TS FF
Mount: HEQ5 Pro
Camera: QHY8
Filter: IDAS LPS
Guidescope: Skywatcher 70/500mm
Guide with LVI SmartGuider
Exp. Time: 100 mins, bin 1x1
Calibration Frames: 30 flat, 50 bias
Capture: Nebulosity 2.2.5
Stack: Nebulosity 2.2.5 & Deep Sky Stacker
Processing: Photoshop CS3
Date: 10 Jul 2010
Location: Parnon Mount, GR

M27 - Dumbbel Nebula Wiki

Saturday, July 31, 2010

IC 5146 - Cocoon Nebula



IC 5146, also Caldwell 19, and the Sh 2-125, Cocoon Nebula, is a reflection/emission nebula and Caldwell object in the constellation Cygnus. IC 5146 is a star cluster and the nebula is Sh2-125.

The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago. The nebula is about 12 arcmins across, which is equivalent to a span of 15 light years.

When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon.

Telescope: APM Astrograph 107, f/6.5 with Baader Steeltrack Focuser and 2.5'' TS FF
Mount: HEQ5 Pro
Camera: QHY8
Filter: IDAS LPS
Guidescope: Skywatcher 70/500mm
Guide with LVI SmartGuider
Exp. Time: 2 hours, bin 1x1
Calibration Frames: 30 flat, 50 bias
Capture: Nebulosity 2.2.5
Stack: Nebulosity 2.2.5
Processing: Photoshop CS3
Date: 13 Jul 2010
Location: Tiros Arkadias, GR

IC 5146 - Cocoon Nebula Wiki

Saturday, April 24, 2010

M97 - Owl Nebula & M108 Galaxy



The Owl Nebula (also known as Messier Object 97 or NGC 3587) is a planetary nebula in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781.
M97 is regarded as one of the more complex of the planetaries. The 16th magnitude central star has about 0.7 solar mass and the nebula itself about 0.15 solar mass. The nebula formed roughly 6,000 years ago.


Messier 108 (also known as NGC 3556) is a barred spiral galaxy in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781 or 1782.[5] From the perspective of the Earth, this galaxy is seen almost edge-on.This galaxy has an estimated mass of 125 billion times the mass of the Sun and includes about 290 ± 80 globular clusters.

Telescope: Skywatcher ED80 & William Optics FF/FR 0.8 II
Mount: HEQ5 Pro
Camera: QHY8
Filter: IDAS LPS
Guidescope: Skywatcher 70/500mm
Guide with LVI SmartGuider
Exp. Time: 2 hours(6*20 min subframes), bin 1x1
Calibration Frames: 50 flat, 50 bias, 10 darks
Capture: Nebulosity 2.2.5
Stack: Nebulosity 2.2.5
Processing: Photoshop CS3
Date: 5 April 2010
Location: Ancient Epidauros, GR

M97 - Owl Nebula Wiki
M108 Galaxy Wiki