22/23-NOV-2020
Horsehead and Flame Nebula
The Horsehead Nebula known as Barnard 33, is a small dark nebula of non-luminous gas obscuring the light coming from behind, the moderately bright nebula IC 434 discovered by William Herschel (1786).
The Flame Nebula (NGC 2024 or Sh2-277) is an emission nebula about 900 - 1500 light-years away.
NGC 2023 is an emission and reflection nebula discovered also by William Herschel (1785). It is one of the largest of its kind, with a size of 10 × 10 arcminutes.
The bright star Alnitak (ζ Ori), shines energetic ultraviolet light into the Flame and this knocks electrons away from the great clouds of hydrogen gas that reside there.
Sigma Orionis (σ Ori) is a multiple star system consisting of the brightest members of a young open cluster.
(Source: Wikipedia)
Hutech modified Canon 6D @ISO1600
TEC 180FL , Astro-Physics AP1200GTO
75x60s SUBS, 15 x DARKS, 20 x FLATS, 20 x FLATDARKS and 20 x BIAS
image acquisition: BackyardEOS, processing: ImagesPlus 6.5x64 and ACDSee Ultimate9
22/23 NOV 2020 ; 23:45 - 00:35
15-SEP-2016
NGC 7635, The Bubble Nebula
NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, the 15 ± 5 M☉ SAO 20575 (BD+60 2522). The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William Herschel. The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.
[Quoted from SEDS]
LRGB 45_15_15_15 (9x300L, 3x300R, 3x300G, 3x300B)
no guiding, 5 DARKS and 10 BIAS's for each channel, no FLATS
TEC180FL, AP1200GTo, FLI ML8300, FLI CFW-2-7 Filter Wheel + Baader 50mm Filter Set
Sequence Generator Pro ; PixInsight
special thanks to Sedat Bilgebay for help during image aquision and later processing
image cropped to 3x2 aspect ratio
30-AUG-2011+18-JUL-2012
M16, The Eagle Nebula
M16 (IC4703, NGC 6611)
Emission Nebula with Open Star Cluster in Serpens (Cauda), distance: 7000 ly, app mag: 6.4, app size: 7 arcmin
Right Ascension 18 : 18.8 (h:m) ; Declination -13 : 47 (deg:m)
Cluster M16 (NGC 6611) discovered by Philippe Loys de Chéseaux in 1745-6. Nebula M16 (IC 4703) discovered by Charles Messier in 1764.
Lying in the constellation Serpens, close to the borders to Scutum and Sagittarius, and in the next inner spiral arm of the Milky Way galaxy from us (the Sagittarius or Sagittarius-Carina Arm) a great cloud of interstellar gas and dust has entered a vivid process of star formation. Open star cluster M16 has formed from this great gaseous and dusty cloud, the diffuse Eagle Nebula IC 4703, which is now caused to shine by emission light, excited by the high-energy radiation of its massive hot, young stars. It is actually still in the process of forming new stars.
[Quoted from: SEDS]
LRGB 30 25 25 25 (5 min subs), 10 darks + 10 flats for each channel ...(30.08.2011)
Ha 36 (6 min subs), 6 darks + 10 flats ...(18.07.2012)
guided, captured and calibrated with MaximDL 5.09; Curves, Levels, Color Balance, Noise Reduction with ACDSee Pro5
FLI ML8300 at -25°C ; ambient temp: +25 to +22°C, humidity: 40%, SQM: 19.53 mag/arcsec2
FLI CFW-2-7 Filter Wheel + Baader 50mm Filter Set
Guiding: MonsterMOAG + SXV-H9C
TEC 180FL , AP1200GTO
cropped to 3x2 aspect ratio
12-MAY-2011
M39 (NGC 7092) Open Cluster in Cygnus
Distance 825 ly, Visual Brightness 4.6 mag , Apparent Dimension 32.0 arc min
Right Ascension 21 : 32.2 (h:m) ; Declination +48 : 26 (deg:m)
Discovered by Charles Messier in 1764.
M39 is a very large but very loose open cluster, situated some 9 degrees east and a bit north of Deneb (Alpha Cygni).
It is of intermediate age (estimates between 230 and 300 million years). 30 stars are proven members and contained in a volume of about 7 light years diameter.
[Quoted from SEDS]
LRGB 70 10 10 10 (5 min subs), 5 darks no flats
guided, captured and calibrated with MaximDL 5.09; Curves, Levels, Color Balance, Noise Reduction in ACDSee Pro5
FLI ML8300 at -25°C ; ambient temp: +16°C, humidity: 55%, SQM: 19.66 mag/arcsec2
FLI CFW-2-7 Filter Wheel + Baader 50mm Filter Set
Guiding: MonsterMOAG + SXV-H9C
Takahashi FSQ106ED f/5
Astro-Physics AP1200GTO
cropped to 3x2 aspect ratio
15-JAN-2011
The Great Orion Nebula and Companions
The Great Orion Nebula M42 (NGC 1976)
Diffuse Nebula, distance: 1300 LY, app mag: 4.0, app size: 85x60 arcmin
Right Ascension 05 : 35.4 (h:m) ; Declination -05 : 27 (deg:m)
Discovered 1610 by Nicholas C.Fabri de Peiresc. Trapezium cluster which was found as multiple star by Galileo Galilei in 1617, is among the youngest open clusters with stars still forming in this stellar nursery.
De Mairan's Nebula M43 (NGC 1982)
Diffuse Nebula, distance 1300 ly, app mag: 9.0, app size: 20x15 arcmin
Discovered 1731 by Jean-Jacques Dortous de Mairan, separated from the great nebula by an impressive, turbulent dark lane. M43 surrounds the irregular young "nebula variable" NU Orionis
Running Man Nebula (NGC 1977), NGC 1973 and NGC 1975
Reflection Nebula, app size: 20x16 arcmin
Discovered 1785 by William Herschel, a region of predominately blue reflection clouds of hydrogen.
LRGB 42 42 42 42 (9x4min + 6x1min for Trapezium) unguided, 8 darks each, 10 flats each, first image at 19:53 +2
captured and processed with MaximDL 5.09, curves and levels in PS CS2, Color Balance and Sharpening in ACDSee Pro4
FLI ML8300 at -25°C (ambient temp: +11°C, humidity: 60%, SQM: 19.13 mag/arcsec2)
FLI CFW-2-7 Filter Wheel + Baader LRGB Filter Set 50mm
Takahashi FSQ 106ED f/5 Astrograph [NewQ]
Astro-Physics AP1200GTO
cropped to 3x2 aspect ratio
19-MAY-2010
Western Veil (NGC 6960)
The Witch's Broom Nebula
Discovered 1784 by William Herschel
20x120 sec, ISO 800, 10 darks, 10 flats
first image at 01:58 +2
Canon 350D (Hutech modified)
TEC180FL
AP1200GTO
PHD guiding Orion 80ED + Meade DSI
captured with ImagesPlus 2.82, processed with ImagesPlus 3.80
18-MAY-2010
The Lagoon Nebula (M8, NGC 6523)
emission nebula with open star cluster, in Sagittarius
Distance 5200 ly
Visual Brightness 6.0 mag
Apparent Dimension 90x40 arc min
Discovered by Hodierna about 1654.
The Lagoon Nebula is a giant cloud of interstellar matter which is currently undergoing vivid star formation, and has already formed a considerable cluster of young stars. (Quoted from SEDS)
20x60 sec, ISO 800, 6 darks, 10 flats
first image @ 01:15 +2
Canon 350D (Hutech modified)
Check camera condition!
here
TEC180FL
AP1200GTO
PHD guiding Orion 80ED + Meade DSI
captured with ImagesPlus 2.82, processed with ImagesPlus 3.80
12-APR-2010
Eastern Veil (NGC 6992/95)
The Veil Nebula is actually expanding debris from a supernova explosion about 7500 years ago.
distance: ~1500 ly
apparent size or the whole complex: 230x160 arcmin
Discovered 1784 by William Herschel
30x120 sec, ISO 800, 10 darks, no flats, no guiding
first image @ 03:15 +2
Canon 350D (Hutech modified)
Borg 101ED
AP1200GTO
captured with ImagesPlus 2.82, processed with ImagesPlus3.80, NeatImage
12-APR-2010
IC 1318, Sadr Region
The heart of Cygnus is a very colorful part of the sky. Only a portion of the large emission nebulosity (IC 1318), the Butterfly Nebula around Sadr, Gamma Cygni, is on this image. The dark nebula (LDN 889) to the right of Sadr, seperates the two halves of the Butterfly. The open cluster NGC 6910 is just to the lower left of Sadr, with some other small clusters in the nebulosity.
distance: Sadr 750 ly, nebulosity 5000 ly
apparent size: 240 arcmin
12x120 sec, ISO 800, 6 darks, no flats, no guiding
first image @ 02:15 +2
Canon 350D (Hutech modified)
Borg 101ED
AP1200GTO
captured with ImagesPlus 2.82, processed with ImagesPlus3.80, NeatImage
11-APR-2010
M101 Pinwheel Galaxy
M101 (NGC 5457), Spiral Galaxy in Ursa Major
and neighbours (clockwise from right): NGC5474, NGC5477, NGC5485, NGC5486, NGC5473 and NGC5422
distance: 27 mi ly , apparent size: 22 arcmin , apparent magnitude: 7.9
discovered by Pierre Méchain in 1781
14x120 sec, ISO 800, 7 darks, no flats, no guiding
first image @ 00:05 +2
Canon 350D (Hutech modified)
Borg 101ED
AP1200GTO
captured with ImagesPlus2.82, processed with ImagesPlus3.80, NeatImage, ACDSeePro3.0
(image cropped)
