Sunday, October 9, 2011
An animation of DWB 111, the "Propeller Nebula", stars vs starless
The starless version shows the actual nebula. It's funny, how much details one can see from the nebula,
when all stars are removed. An experimental method used for star removal has become very accurate.
Note.
A starlike dot, in up center left, is a planetary nebula PK 79+5.1, a large bluish area,
to seven a clock direction from PK 79+5.1, is a possible planetary nebula PN PM 1-320.
This image was my first light for the Autumn season 2011.
Original blog post, with technical details, can be found from HERE.
Ps.
Above image of the Propeller Nebula, from Cygnus constellation, looks very much like a piece of marble tile bellow.
Friday, October 7, 2011
Sharpless 119 as a 3D stereo pair images
Parallel vision 3D
Cross vision 3D
Other 3D-formats:
Original 2D:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Sharpless 199 as an anaglyph Red/Cyan 3D
3D-NOTE!
You'll need Red/Cyan Eyeglasses to be able to see images as 3D.
If you have a Red and Blue filters, you can use them! Red goes to Left eye.
As usually, I have turned the image of Sharpless 119, Sh2-119, to an experimental 3D-study.
As usually, I have turned the image of Sharpless 119, Sh2-119, to an experimental 3D-study.
Other 3D-formats:
Original 2D:
Thursday, October 6, 2011
Sharpless 119, Sh2-119
Sharpless 119
In constellation Cygnus, Ra 21h 18m Dec +44 00'
HST-palette, (HST=Hubble Space Telescope) from the emission of ionized elements,
R=Sulfur, G=Hydrogen and B=Oxygen.
R=Sulfur, G=Hydrogen and B=Oxygen.
Sharpless 119 is a largish emission nebula in constellation Cygnus. There are not too many images of it around due the close proximity of eye catchers, North America and Pelican Nebulae. Sh2-199 locates just three degrees East from the NGC 7000, North America Nebula. A bright magnitude 5 star 68 Cygni, can be seen at very center of the image above. There are several dark globules at the Southern part of the nebula.
This image covers about three degrees of sky, that's six full Moons side by side. There are some interesting looking structures in the nebula, straight line type of gas formations, they can be seen at Five and Six a clock positions, starting from image center to almost the edge of the image above.
Image is in Natural color palette from the emission of ionized elements,
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
(Looks much like a "wide screen version" of the Rosette Nebula.)
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations.
Levels, curves and color combine in PS CS3.
Optics, Tokina AT-X 300mm camera lens at f2.8
Camera, QHY9 Guiding, SXV-AO @ 6,5Hz
Image Scale, 3,5 arcseconds/pixel
Exposures H-alpha 10x1200s, binned 1x1O-III 3x1200s, binned 3x3
S-II 3x1200s, binned 2x2
Total exposure time ~5h
Tuesday, October 4, 2011
The Propeller Nebula as a 3D stereo pair images
Parallel vision 3D
Cross vision 3D
Other 3D-formats:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
The Propeller Nebula as an anaglyph Red/Cyan 3D
3D-NOTE!
You'll need Red/Cyan Eyeglasses to be able to see images as 3D.
If you have a Red and Blue filters, you can use them! Red goes to Left eye.
As many times before, I have turned the image of Propeller Nebula, DWB 111, to an experimental 3D-study.
As many times before, I have turned the image of Propeller Nebula, DWB 111, to an experimental 3D-study.
Other 3D-formats:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Monday, October 3, 2011
First light for the Autumn season 2011
Finally!!!
Last night I managed to fix my "backup camera", some soldering and tweaking was needed but it worked out.
My first target was the "Propeller Nebula" in constellation Cygnus.
DWB 111, the Propeller Nebula
Ra 20h 17m 57s Dec -+44° 09′ 20″ in constellation Cygnus
HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Propeller Nebula (DWB 111, MRSL 497). This S-like formation is part of the much large area of emission nebulae in Cygnus. There are very little information around, the origin and distance of this structure is unknown. It seems to be mostly front of the associated nebula. I will make an experimental 3D-study out of this later.
A closeup from the image above.
Image is in Natural color palette from the emission of ionized elements,
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations.
Levels, curves and color combine in PS CS3.
Optics, Tokina AT-X 300mm camera lens at f2.8
Camera, QHY9 Guiding, SXV-AO @ 6,5Hz
Image Scale, 3,5 arcseconds/pixel
Exposures H-alpha 15x1200s, binned 1x1
H-alpha 10x1200s, binned 1x1
O-III 14x1200s, binned 1x1
S-II 5x1200s, binned 2x2
Total exposure time ~10h
Total exposure time ~10h
An experimental starless image shows the actual nebula better.
Ps.
It looks to me, that there is something going on at Two a clock position in this image. It could be a planetary nebula? There are nearly five hours of O-III in this image, with a fast f2.8 optics, so the emission of ionized Oxygen is not very strong. I couldn't find this feature from PN database, I must study this more later.
Here is a closeup of the area of interest
Just a stretched O-III & H-alpha channels animated
Not much, after about Five hours of exposures. There is nothing visible, about this shape, at S-II channel. Centeroid of the brightest spot is, Ra 20h 10m 39.7s Dec -+44° 12′ 01.9" and the diameter about 360 arc seconds.
UPDATE
Iiro Sairanen, from a Finnish astro group "Avaruus.fi", found this PN candidate from the Simbad database :
http://simbad.cfa.harvard.edu/simbad/sim-id?Ident=%40114921&Name=PN%20PM%20%201-320&submit=submit
It's known under a name PN PM 1-320
Saturday, October 1, 2011
Uh, this is too hard....
I have tried several times but either weather or technique has failed. First my observatory control laptop fried and it took a long time to re install everything.
Now my camera has fried too, just 30 minutes ago. I'll have to send it back to the China but there is a national holiday going on about two first weeks of the October...
I managed to get just a single 20min. exposure before something really bad happened to my cooled astronomical camera. There is a bad tilt in optical axes and other flaws too, I don't count this as a first light.
Single 20 min. exposure of the "Propeller Nebula" in constellation Cygnus.
A new set of wide fields vs closeups
Weather looks kind of good now, I might have something new to publish in few days! I never have had a first light for the Autumn season so late...
Since the weather doesn't support shooting any new material, I have done more image pairs from same target in different focal lengths, usually a 200-300mm camera lens and my old Meade LX200 GPS 12" telescope.
I have done earlier some scale studies from the same material, with Moon circle as a scale.
Now I have done just simple image pairs, showing both, a wide field and a closeup.
Now I have done just simple image pairs, showing both, a wide field and a closeup.
IC 410, in Auriga, a "cosmic fertilization"
Ra 05h 22m 39s Dec -33° 31′ 01″
HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Links to the original images, used in image pair, from top to bottom, 300mm vs ~2000mm
1. First wide field shot:
http://astroanarchy.blogspot.com/2008/03/ic-405-410-with-color.html
2. A closeup of IC 405
2. A closeup of IC 405
IC405, the "Flaming Star Nebula"
An emission Nebula in constellation Auriga
Images are in Natural color palette from the emission of ionized elements,
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
Links to the original images, used in image pair, from top to bottom, 300mm vs ~2000mm
2. A closeup of IC 405
Wednesday, September 28, 2011
A set of wide fields vs closeups
Since the weather doesn't support shooting any new material, I have done more image pairs from same target.
I have shot many targets with least two different focal lengths, usually a 200-300mm camera lens and my old Meade LX200 GPS 12" telescope. I have done earlier some scale studies as a zoom in series, with Moon circle as a scale.
Now I have done just simple image pairs, showing both, a wide field and a closeup from the same objects.
Sh2-142, the "Wizard Nebula"
Ra 22h 47m 0s Dec +58° 06′ 00″, in constellation Cepheus
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Links to the original images, used in series, from top to bottom, 300mm vs ~2000mm
NGC 7000, the "North America Nebula"
In constellation Cygnus
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Links to the original images, used in series, from top to bottom, 300mm vs ~2000mm
IC443, the "Jellyfish Nebula"
In constellation Gemini
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Links to the original images, used in series, from top to bottom, 300mm vs ~2000mm
2. http://astroanarchy.blogspot.com/2011/01/ic-443-reprocessed-closeup-and-wide.html
Monday, September 26, 2011
A collection of images from Australia ( Shot by a remote telescope)
Southern wonders
Images from Northern Galactic Groups remote telescope, narrow and broad band. photos.
I had an access to a great instrument, 16 inch RCOS, in Australia for few months about an year ago, what a wonderful experience! I made this poster form presentation from that material. Southern sky is full of wonders and the site was really dark. I miss this "Stradivarius" of telescopes, my old Meade feels like a toy after this...
A labeled version
A collection of remote images can be found from my portfolio, with technical details:
R.I.P Dell laptop at age of ten years...
This was a third time I tried to have my first light for the Autumn season 2011. This time my ten years old Dell laptop, used to run the observatory, died.
I have ordered a new tabletop computer with some extra com ports. There are no 9 pin communication ports in modern computers and many astro gears need one, like active optics unit, TCF-s focuser and Meade telescope control. I bet, the weather will clear up now, since I can't shoot...
Some redone images
I have turned some of my images to a panoramic format for one customer.
They turned to be kind of nice, so I'll publish some of them here.
(They looked wonderful as a large print on canvas)
More panoramic images in my portfolio:
http://astroanarchy.zenfolio.com/p1055055963
More panoramic images in my portfolio:
http://astroanarchy.zenfolio.com/p1055055963
M8, the "Lagoon Nebula"
in constellation Sagittarius
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Original image and technical details:
NGC7000, the "North America Nebula", a closeup
in constellation Cygnus
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Original image and technical details:
M104, the "Sombrero Galaxy"
in constellation Virgo
A broad band image in natural RGB-colors
Original image and technical details:
Sharpless 162, NGC 7635, the "Bubble Nebula"
Ra 23h 20m 48s Dec +61° 12′ 06″
Image is in HST-palette, (HST=Hubble Space Telescope) from the emission of ionized elements, R=Sulfur, G=Hydrogen & B=Oxygen.
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission.
Thursday, September 22, 2011
Rain and more rain... couple of wide fields vs closeups
Since the weather doesn't support shooting any new material, I have done more image pairs from same target.
I have shot many targets with least two different focal lengths, usually a 200-300mm camera lens and my old Meade LX200 GPS 12" telescope. I have done earlier some scale studies as a zoom in series, with Moon circle as a scale.
Now I have done just simple image pairs, showing both, a wide field and a closeup from the same objects.
"Rosette Nebula"
Ra 06h 33m 45s Dec +04° 59′ 54″, in constellation Orion
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Links to an original images used in series from top to bottom
Sharpless 162, NGC 7635, the "Bubble Nebula"
Ra 23h 20m 48s Dec +61° 12′ 06″
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission.
Links to an original images used in series from top to bottom
- http://astroanarchy.blogspot.com/2011/03/sh2-157-reprocessed.html
- http://astroanarchy.blogspot.com/2011/09/bubble-nebula-reprocessed-again.html
Image is in HST-palette, (HST=Hubble Space Telescope)
from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Links to an original images used in series from top to bottom
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