Monday, September 12, 2011
Couple of image collections with very different instruments, Tokina 300mm camera lens and the Meade LX200 GPS 12" telescope 3000mm
Images taken with a Tokina AT-X 300mm f2.8 camera lens
Images are in HST-palette from the emission of ionized elements, R=Sulfur, G=Hydrogen & B=Oxygen.
Note. Images in this poster are not in same scale.
All images in this collection can be found from my portfolio, with technical details:
Tokina AT-X 300mm camera lens is an excellent astrolens!
Here is a blog post about the lens and the first light for it:
Tokina lens at top of the Meade LX200 GPS 12" telescope, it's a large lens with the dew shield attached.
Imaging bath, more info in this blog post:
http://astroanarchy.blogspot.com/2009/09/active-otics-and-meade-lx200-gps-12.html
All the images above are shot from my city center observatory, under a heavy light pollution.
The narrowband imaging is must under my conditions. Dark place is better naturally, now I'm able to use every cloudless moment, unlike with an observatory in distant dark location.
A collection of images taken with a Meade LX200 GPS 12" 3000mm f10 telescope, forced to work at ~f5.
My old Meade LX 200 GPS12" telescope, on its original fork mount, is not a perfect instrument for astronomical imaging. I have managed to get it work like a real imaging platform, not an easy task though.
Great help is an active optics unit, SXV-AO, from Starlight express. (UK based company)
Most of the images are in HST-palette from the emission of ionized elements, R=Sulfur, G=Hydrogen & B=Oxygen. Red ones are in natural narrowband colors. Note. Images in this poster are not in same scale.
All images in this collection can be found from my portfolio, with technical details:
My old Meade LX 200 GPS12" telescope, on its original fork mount, is not a perfect instrument for astronomical imaging. I have managed to get it work like a real imaging platform, not an easy task though.
Great help is an active optics unit, SXV-AO, from Starlight express. (UK based company)
Imaging bath, more info in this blog post:
http://astroanarchy.blogspot.com/2009/09/active-otics-and-meade-lx200-gps-12.html
All the images above are shot from my city center observatory, under a heavy light pollution.
The narrowband imaging is must under my conditions. Dark place is better naturally, now I'm able to use every cloudless moment, unlike with an observatory in distant dark location.
A collection of Sharpless catalog objects
I have imaged some Sharpless catalog objects during the years. Many of them are very dim but there are some familiar objects too. All images are in HST-palette from the emission of ionized elements, R=Sulfur, G=Hydrogen & B=Oxygen. Note. Images in this poster are not in same scale.
All images in this collection can be found from my portfolio, with technical details:
Labeled
Many ways to die
A collection of passed away stars, both, planetary nebulae and supernova remnants.
Note. Images in this poster are not in same scale.
UPDATE
"Jake" from Finnish astronomical group, http://foorumi.avaruus.fi/ , pointed out, that Sh2-223 (Sharpless 223) is now uncatalogued as a supernova remnant, it's just a HII region.
UPDATE
"Jake" from Finnish astronomical group, http://foorumi.avaruus.fi/ , pointed out, that Sh2-223 (Sharpless 223) is now uncatalogued as a supernova remnant, it's just a HII region.
"G166.2+2.5 (=OA 184) (aka Sh2-223) was removed from the 2006 April version of the catalogue, as it was identified as an HII region by Foster et al. (2006)."
I left the image as it is, since there is a real SNR in the image, Sh2-224.
All images in this collection can be found from my portfolio, with technical details:
Labeled
There are some very rarely imaged objects in the poster, like Jones1, Jones-Emberson1, Medusa Nebula, Sh2-188, Sh2-221, Sh2-216, Simeis 147 and supernova remnant pair Sh2-223, 224.
PL = planetary Nebula, SNR = supernova remnant
PL = planetary Nebula, SNR = supernova remnant
Sunday, September 11, 2011
Cygnus Treasures
A collection of objects in constellation Cygnus.
All images are in HST-palette from the emission of ionized elements, R=Sulfur, G=Hydrogen & B=Oxygen.
Note. Images 1,2,3,5,9 are in same scale as a group (300mm Tokina lens @ f2.8). Closeup images, 4,6,7,8 are in same scale. (Meade LX200 GPS 12" reduced to f4,65)
Note. Images 1,2,3,5,9 are in same scale as a group (300mm Tokina lens @ f2.8). Closeup images, 4,6,7,8 are in same scale. (Meade LX200 GPS 12" reduced to f4,65)
I made this image since I haven't have an opportunity to do any imaging yet, due the weather. We have couple of hours of astronomical darkness now and my first targets will be locating in constellation Cygnus.
Original image is really large, since I kept all the images in native resolution, 11.000 x 12.000 pixels!
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. Star colors are mixed from the NB channels, Red=H-a, G=O-III and B= 85%O-III + 15%H-a.This composition is very close to a visual spectrum.
Images from upper Left to a lower Right corner:
Images from upper Left to a lower Right corner:
1. Wide field image of NGC6888, the "Crescent Nebula"
2. Wide field image of the "Butterfly Nebula"
3. Wide field image of the Sharpless 101, the "Tulip Nebula"
4. Closeup of the NGC6888, "Crescent Nebula"
5. "Veil Nebula", a supernova remnant
6. Closeup of the Sharpless 101, the "Tulip Nebula"
7. Closeup of the NGC7000, the "North America Nebula"
8. Closeup of the "Pelican Nebula"
9. Wide field image of the North Ameriac and the Pelican Nebulae.
Subscribe to:
Posts (Atom)
