Tuesday, June 15, 2010
M20, the "Triffid nebula", more lights added
M20, the "Triffid Nebula" in constellation Sagittarius. Distance about 7600 light years.
Less compressed versions in my Portfolio:
http://astroanarchy.zenfolio.com/p1072219942/h3197814b#h3197814b
This is a third version of the M20. Image gets deeper and deeper as more exposures gets added.
Less compressed versions in my Portfolio:
http://astroanarchy.zenfolio.com/p1072219942/h3197814b#h3197814b
This is a third version of the M20. Image gets deeper and deeper as more exposures gets added.
Previous versions can be seen here:
An experimental Starless version to show the actual nebula.
M20, imaged with a Northern Galactic members remote telescope in Australia,
Impressive instrumentation and great location in Souther Australia under a dark Sky, makes possible to go deep in very short time!
Technical details
16" RCOS ja Apogee U9000 camera.
LRGB combo.
LRGB-image, Luminance=5x300s + 5x600s, total 1h 15min.
Red=3x300s, Dark and Flat calibrated.
Green=3x300s, Dark and Flat calibrated.
Blue=3x300s + 1x600s, Dark and Flat calibrated.
Raw data is shared with Petri Kehusmaa and J-P Metsavainio
Processing workflow:
Image acquisition, MaxiDL v4.xxx
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.
Cropped image at 100% scale
Sunday, June 13, 2010
Start of a new imaging project, the Helix nebula
The Helix nebula, NGC 7293. Planetary nebula in constellation Aquarius about 700 light years from the Earth..
(The helix has been often referred to as the "Eye of Good",
I'll like to know, which one it's supposed to belong... least we know now He/She has very large Blue eye(s).)
This is a start for an imaging project, since the Helix has lowish surface brightness, it'll need a long integration time. Now there is just One hour used for the Luminance channel and 10 min./each RGB-channel.
I think, about Five to ten hours is needed to reveal dimmer outer parts of this Planetary nebula.
Later we'll shoot all the narrow band channels, H-a, O-III and S-II, too.
The telescope and technical information:
16" RCOS ja Apogee U9000 camera.
LRGB combo.
Luminance 6x600s., Dark and Flat calibrated.
Red 1x600s, Dark calibrated
Green 1x600s, Dark calibrated
Blue 1x600s, Dark calibrated
Raw data is shared with Petri Kehusmaa and J-P Metsavainio
Processing workflow:
Image acquisition, MaxiDL v4.xxx
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations
Levels, curves and color combine in PS CS3.
Saturday, June 12, 2010
M8, LRGB, second edition
M8, LRGB image redone.
Previous version and technical details can be seen here:
M8, the "Lagoon nebula" in H-alphaLR(H-alpha)GB composition
GB.jpg)
H-alpha boosted LRGB image of M8.
H-alpha emission of ionized Hydrogen is mixed to a LRGB image.
50% H-a to Red channel in "lighten" mode and 33% H-alpha mixed to a luminance channel.
The telescope and technical information:
16" RCOS ja Apogee U9000 camera.
LRGB combo.
Luminance 7x300s., Dark and Flat calibrated.
H-alpha 4x1200s, Dark and Flat calibrated.
Red 5x300s, Dark calibrated
Green 5x300s, Dark calibrated
Blue 5x300s, Dark calibrated
Raw data is shared with Petri Kehusmaa and J-P Metsavainio
Processing workflow:
Image acquisition, MaxiDL v4.xxx
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations
Levels, curves and color combine in PS CS3.
Different color versions:
Pure LRGB-composition.
H-alpha
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.
This composition is very close to a visual spectrum.
HST-palette from the emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen
More information of used color schemes:
M8, the "Lagoon nebula" as a LRGB-broad band image
M8, pure LRGB-composition.
The telescope and technical information:
16" RCOS ja Apogee U9000 camera.
LRGB combo.
Luminance 7x300s., Dark and Flat calibrated.
Red 5x300s, Dark calibrated
Green 5x300s, Dark calibrated
Blue 5x300s, Dark calibrated
Raw data is shared with Petri Kehusmaa and J-P Metsavainio
Processing workflow:
Image acquisition, MaxiDL v4.xxx
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations
Levels, curves and color combine in PS CS3.
Wednesday, June 9, 2010
M8, the "Lagoon nebula", as a 3D-stereo pair
Parallel vision
Cross vision
Other 3D-formats can be found here:
Original 2D-image:
NOTE! This is a personal vision about forms and shapes, based on some known
facts and an artistic impression.
Viewing instructions can be found from a Right hand side menu.
Viewing instructions can be found from a Right hand side menu.
M8, the "Lagoon nebula", as an anaglyph Red/Cyan 3D
You'll need Red/Cyan Eyeglasses to be able to see this
image right.
Note, if you have a Red and Blue filters, you can use
them! Red goes to Left eye.
Other 3D-formats can be found here:
Original 2D-image:
NOTE! This is a personal vision about forms and shapes, based
on some known facts and an artistic impression.
M8, the "Lagoon nebula", as an animated 3D
Animations are made by creating artificial parallax to an image. Then two images are animated together by using conversion web service, Start3D. There can be some artifacts in images, due the experimental nature of this work! The volumetric models are based on some known facts and an artistic impression.
Please, let the images load for few seconds to see them animated!
Original 2D-image with the technical details:
Other 3D-formats:
NOTE! This is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Sunday, June 6, 2010
An experimental M8, the "Lagoon nebula"
M8 in HST-palette, 50% broad band luminance used at top of the NB image, 100% for the Stars.
M8 in natural color narrow band composition, 50% broad band luminance used at top of the NB image, 100% for the Stars.
Original pure narrow band compositions can be found here:
Technical details are behind the link above.
Star colors are not RGB-colors!
They are mixed from O-III and H-alpha stars by using a scientifically "wrong" method as a form of artificial Green channel.
Luminance information, 7x300s, dark calibrated.
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