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Friday, June 3, 2011

Panoramic mosaic from the M52 & Bubble to Wizard Nebula





While making scale studies from various objects, I did make some new panoramas from archived images.
I will publish some of them as an individual images, comments and suggestions are welcome.


Panorama, from M52, Bubble Nebula & Sh2-157 to the Wizard Nebula 
In constellation Cassiopeia


A panorama from the M52 to the Wizard Nebula in constellation Cassiopeia.
Image is in HST-palette from an emission of ionized elements, R=Sulfur, G=Hydrogen and 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. 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.
Note. Size of the full Moon is marked as a gray circle, at lower Left corner, for a scale.

There are two individual images used to make this panoramic image:

  1. Sharpless 157, http://astroanarchy.blogspot.com/2011/03/sh2-157-reprocessed.html
  2. Wizard Nebula, http://astroanarchy.blogspot.com/2011/02/sh2-142-wizard-nebula-wide-field.html

Technical details for the images above

Sh2-157 Imaging data:
 Camera, QHY8 - 
Filters, Baader 7nm H-alpha, Baader 8,5nm O-III and Baader 8nm S-II - 
Optics, Tokina AT-X 300mm @ f2.8 - 
Exposures, 5X 1200s H-alpha, 2 X 1200 O-III and 2X1200s S-II + flats and bias - 
Guiding, LX200 GPS 12" + PHD-guiding and Lodestar

Wizard Nebula, Sharpless 142, NGC7380  Imaging data:
 Camera, QHY8 - 
Filters, Baader 7nm H-alpha, Baader 8,5nm O-III and Baader 8nm S-II - 
Optics, Tokina AT-X 300mm @ f2.8 - 
Exposures, 10X 1200s H-alpha, 2 X 1200 O-III and 2X1200s S-II + flats and bias - 
Guiding, LX200 GPS 12" + PHD-guiding and QHY5

Labeled version










Thursday, June 2, 2011

A panorama from the Sharpless 221 to 216




While making scale studies from various objects, I did make some new panoramas from archived images.
I will publish some of them as an individual images, comments and suggestions are welcome.


Sharpless panorama, Sh2-216, 217, 219, 221 and BFS44 
East of constellation Camelopardalis


Image is in HST-palette from an emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.


There are two individual images used to make this panoramic view:



  1. Left side, http://astroanarchy.blogspot.com/2011/01/two-ways-to-end-life-planetary-nebula.html
  2. Right side, http://astroanarchy.blogspot.com/2011/02/sh2-216-project-finalized.html

This image covers over six degrees of sky horizontally, that's 12 full Moons side by side. Here is a "scale study out of this target, the Moon is marked as a gray circle:



A 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.
Note. Size of the full Moon is marked as a gray circle, at lower Right corner, for a scale.


An annotated image shows objects in the field


There are very little information out of objects in the image and there is very few images from them generally.
I think, this must be the first three band narrowband image out of this field.

Objects in this image are spread out over wide range of distances. They are not forming a single complex, like the Cassiopeia arc west of Camelopardalis. The largest objects in a field are Sharpless 221 and 216.

First from the Left is a supernova remnant, SNR 160.4+02.8 (Sh 2-221) , the distance is unknown. 
The Planetary Nebula,  PK 158+00 1 (Sh 2-216) , at Right end of an image, distance of only 120 parsecs (~390 light years) makes this to a one of the oldes and largest planetary nebula known.

Smaller objects in a field are Sh2-217, 4100 solar mass molecular cloud at distance of 5200 parsecs (0ver 16.000 light years) and Sh2-219, an HII region at distance of 4200 parsecs (Over 13.000 light years)
Last object BFS44, at bottom center, located at distance of 6100 parsecs (over 19.000 light years), almost nothing has been published from this object.

Source for information above, galaxymap.org, http://galaxymap.org/drupal/node/44








Wednesday, June 1, 2011

Panorama from the Butterfly to Crescent





While making scale studies from various objects, I did make some new panoramas from archived images.
I will publish some of them as an individual images, comments and suggestions are welcome.


Cygnus panorama

A panorama from the Butterfly to the Crescent Nebula in constellation Cygnus.
Image is in HST-palette from an emission of ionized elements, R=Sulfur, G=Hydrogen and B=Oxygen.
Note. Size of the full Moon is marked as a gray circle, at lower Right corner, for a scale.

There are two individual images used to make this panoramic image:

  1. Butterfly Nebula, http://astroanarchy.blogspot.com/2011/01/butterfly-nebula-reprocessed.html
  2. Crescent Nebula, http://astroanarchy.blogspot.com/2011/01/ngc-6888-crescent-nebula-wide-field.html

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.


There is a third overlapping image from the same area, the "Tulip Nebula". I have a panoramic image containing it as well. I like this panorama but it's so long, that image gets very small, so I didn't place it as a main image in this post.

A long and narrow version, with the "Tulip Nebula"




Tulip Nebula, the original image:
http://astroanarchy.blogspot.com/2011/01/tulip-nebula-sh2-101-wide-field-closeup.html


All images in this page have been part of an older mosaic, the "Cygnus Trio"
It was my very first APOD (Astronomy Picture Of  Day) published  by NASA.
http://astroanarchy.blogspot.com/2008/11/apod.html








M57, the "Ring Nebula", apparent scale in the sky




I have shot many targets with several focal lengths. 
Due that, I will publish some of my material as an image sets, with different field of view and detail levels.
The fractal nature of our universe stands out nicely by this way and it will make the orientation more easy.

Many times, it's difficult to understand the image scale of astronomical images.
Due that, I will add a Moon circle in some of the images to show the angular scale in a sky. 
The full Moon has an angular size of ~30 arc minutes, that's equal to ~0,5 degrees.


M57, A planetary Nebula
In constellation Lyra

NOTE. The size of the full Moon (0,5 degrees) is marked as a gray circle in all of the images.
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.

This is generally a difficult target, due the small angular size and an extreme dim outer ring structure versus bright core. 

One image of M57 is used to make this image series.
Original image and technical details can be found here: