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Thursday, June 6, 2013

Pelican Nebula zoom in series and the scale in a sky



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

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


Cygnus zoom in series, apparent scale of the Peilcan Nebula
Be sure to click for a full size image!

A zoom in series to the Pelican Nebula.
Note. a circle, size of the full moon, as a scale.
A largish image, 7.5MB and 1356x5487 pixels


Orientation in the constellation Cygnus


The North America and Pelican nebulae can be seen at upper left corner.


Images used in this zoom in series
Technical details behind the links

  1. Part of the large, 18-panels, mosaic of the Cygnus, imaged with a Canon 200mm f1.8 lens, QHY9 astronomical camera and the Baader narrowband filters: http://astroanarchy.zenfolio.com/p1072219942/h1a60116f
  2. North America and the Pelican Nebulae, imaged with a Tokina AT-X 300mm f2.8 lens,  QHY9 astronomical camera and the Baader narrowband filters: http://astroanarchy.zenfolio.com/p1072219942/h2c811434#h2c811434
  3. Part of the large, 18-panels, mosaic of the Cygnus, imaged with a Canon 200mm f1.8 lens, QHY9 astronomical camera and the Baader narrowband filters: http://astroanarchy.zenfolio.com/p1072219942/h3f92be2d#h3f92be2d
  4. A closeup of the Pelican Nebula, imaged with the Meade LX200 GPS 12" f5 telescope,  QHY9 astronomical camera and the Baader narrowband filters: http://astroanarchy.zenfolio.com/p1072219942/h35663238#h35663238