Wednesday, February 8, 2012
Siemis 147, new data added
I did reprocess this SNR, since I have now new data to add,
Emission of an Oxygen III 5h, and emission of Hydrogen II 5h
Total exposure time is now 26h. with fast, Canon EF 200mm f1.8, camera optics.
Simeis 147, Sh2-240
In constellation Taurus
Note. New data for O-III has added much more blue color.
Older version can be seen in this blog post:
http://astroanarchy.blogspot.com/2011/12/simeis-147-supernova-remnant.html
Older version can be seen in this blog post:
http://astroanarchy.blogspot.com/2011/12/simeis-147-supernova-remnant.html
I shot H-alpha filtered lights for this image at many nights, after I shot lights for my Cygnus mosaic project.
After a midnight, Cygnus and its targets are too low in the horizon so I used rest of the night for this supernova remnant. Total exposure time for H-alpha is now ~18h +5h of an additional O-III light.
Simeis 147 (sharpless 240), is a very faint and very large supernova remnant in constellation Taurus at distance of ~3000 light years. It's constantly expanding at speed of 1000 km/second but due the size of it, we can't see any movement in it. This SN spans over 160 light years and the apparent scale in the sky is about three degrees (Moon has an apparent size of 30" = 0,5 degrees). Explosion took place approximately 30.000 years ago and left behind a pulsar (Neutron star). The pulsar has recently identified.
How long it'll takes to this supernova remnant to expand 1% large when the diameter is 160 light years and it expands at speed of 1000km/second.
How long it'll takes to this supernova remnant to expand 1% large when the diameter is 160 light years and it expands at speed of 1000km/second.
Answer is ~480 years.
(1% of diameter 160/100= 16, as kilometers ~151.372.800.000.00, = Y, km,
1000km/second is ~315.360.000.00, = Z, kilometers/year.
So, X x Z = Y and X=Z/Y, X = 480 with given values)
(1% of diameter 160/100= 16, as kilometers ~151.372.800.000.00, = Y, km,
1000km/second is ~315.360.000.00, = Z, kilometers/year.
So, X x Z = Y and X=Z/Y, X = 480 with given values)
This is a difficult target to image and image above is my second try to capture it. An older version can be seen here. This older image was my second APOD from NASA.
EDIT.
This image get selected as a Space Picture of the Week by the National Geographic magazine.
You can see the story HERE
Closeups
Image in visual spectrum
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
This palette is very close to a visual spectrum.
An animated image, with and without stars
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 33 % weight
Levels, curves and color combine in PS CS3.
Optics, Canon EF 200mm camera lens at f1.8
Camera, QHY9
Guiding, Meade LX200 GPS 12" and a Lodestar guider
Image Scale, ~5,5 arcseconds/pixel
H-alpha 34x900s, Binned 1x1 = 8,5h
H-alpha 24x1800s, Binned 1x1 = 12h
O-III 60 x 300s, Binned 3x3 = 5h
S-II 6 x 600, Binned 3x3 = 1h
Total exposure time for Hydrogen alpha alone is ~20,5h
Total exposure time is 26,5h
Part of the O-III and S-II channel are from an older image, it can be seen here
Monday, February 6, 2012
Sharpless 145, a dim and large nebula in Cepheus
Sh2-145, a large Nebula in constellation Cepheus
RA 22h 28m 44s DE +64 08' 51"
At night of 03.Feb, I was looking some targets in Cepheus. This area took my attention and I gave it whole night. I haven't been able to find any name for it from my sources. I's large, image spans 5,5 degrees horizontally, and dim. I shot it, with Canon EF 200mm f1.8 optics and QHY9 astronomical camera, five hours for H-a and two hours for O-III (binned down 3x3), camera was full open at f1.8.
The "bright", mag 6,29, star, at Left middle, is known as HR 8568, location is RA 22h 28m 44s DE +64 08' 51"
UPDATE
Thanks to "Never", in a Finnish astronomical forum "Avaruus", all the objects are now identified!
The bright patch at top is Sh2-150. Formation at the middle is Sh2-145 and a bright spot, at lower Right, is Sh2-140. Star cluster Pismis-Monreo 1 locates inside of Sh2-140.
Orientation map
H-alpha channel
A bicolor closeup
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Levels, curves, color and mosaic combine in PS CS3.
Optics, Canon EF 200mm camera lens at f1.8
Camera, QHY9
Guiding, Meade LX200 GPS 12" and a Lodestar guider
Image Scale, ~5,5 arcseconds/pixel
Exposures, Baader 7nm H-a, 15x1200s
O-III, binned down 3x3 2h. total exposure time 7 hours.
Calibration with Darks, Flats and Bias frames.
Sunday, February 5, 2012
Sharpless 205, Sh2-205
Sh2-205
At border of Perseus and Camelopardalis
Image in HST-palette from ionized elements, Red=Sulfur, Green=Hydrogen & Blue=Oxygen.
Click for a large image!
A closeup
Image in visual spectrum
Narrow band channels combined to a visual spectrum, R=Hydrogen + Sulfur, G=Oxygen and
B=Oxygen + Hydrogen.
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Levels, curves, color and mosaic combine in PS CS3.
Optics, Canon EF 200mm camera lens at f1.8
Camera, QHY9
Guiding, Meade LX200 GPS 12" and a Lodestar guider
Image Scale, ~5,5 arcseconds/pixel
Exposures, Baader 7nm H-a, 12x1800s + 15x1200s = 11h
O-III, binned down 3x3 1h. total exposure time12 hours.
Calibration with Darks, Flats and Bias frames.
Monday, January 30, 2012
"What?" Project finalized
"?"
Image in HST-palette from ionized elements, Red=Sulfur, Green=Hydrogen & Blue=Oxygen.
North is Right. Click for a large image!
I shot data for ionized Sulfur and Oxygen last night and now I can compose a three channel RGB-image.
This cosmic question mark, in constellation Cepheus, contains following objects; At top, Cederblad 214(Ced 214) surrounded by NGC 7822, a dot like nebula at the bottom is known as Sharpless 170,(Sh2-170). Image spans over Five degrees vertically. Distance from my observatory, is ~2750 light years and it spans about 40 light years.
Total exposure time is about 9h with an ultra fast Canon EF 200mm f1.8 optics and the QHY9 astronomical camera.
EDIT.
This image get selected as a Space Picture of the Week by the National Geographic magazine.
You can see the story HERE
Couple of closeups to show the resolution
Not bad for a 200mm camera lens
A natural color composition
From emission of ionized elements
Narrow band channels combined to a visual spectrum, R=Hydrogen + Sulfur, G=Oxygen and
B=Oxygen + Hydrogen. North is Right.
Note!
Note!
A gray circle, at top Right, shows the apparent size of the full Moon.
(Moon has an angular size of 30', that's 0,5 degrees)
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Levels, curves, color and mosaic combine in PS CS3.
Optics, Canon EF 200mm camera lens at f1.8
Camera, QHY9
Guiding, Meade LX200 GPS 12" and a Lodestar guider
Image Scale, ~5,5 arcseconds/pixel
Exposures, Baader 7nm H-a, 13x1200s + 10x900s = 7h
O-III 1h and S-II 1h, total 9 hours.
Calibration with Darks, Flats and Bias frames.
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