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All the material on this website is copyrighted to J-P Metsavainio, if not otherwise stated. Any content on this website may not be reproduced without the author’s permission.

Have a visit in my portfolio

Thursday, August 23, 2012

Astro Anarchy, now in Facebook



I have opened a Facebook account, you are welcome to follow my addiction to astronomical imaging!

I will publish my new material here in my blog, as usual. In addition, I'll update my Facebook status regularly. My Facebook pages are not so much for personal information but they'll work as a publishing channel for my astronomical images.

My image portfolio, with all of my images, can be found here: http://astroanarchy.zenfolio.com/



The imaging season has not started yet, up here at 65N.
I'll start to post new material in mid-September, when we'll have enough astronomical darkness.
Before that, I'll publish some of my experiments with older material.





Friday, August 17, 2012

Pelican nebula as a zoom in series




I have shot many targets with several focal lengths.
Due to that I will publish some of my material as image sets, with 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 easier.

Many times it's difficult to understand the image scale of astronomical images.
Due to that I have added a "Moon circle" in 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.


Pelican nebula in constellation Cygnus

Image is in HST-palette

Images used in zoom in series

A giant, 18-panels, mosaic of the Cygnus constellation with 200mm canon EF at f1.8:

North America and Pelican Nebulae, Tokina 300mm AT-X 300  at f2.8:

Pelican nebula closeup with the Meade LX200 GPS ~2000mm at f5.5:


Hydrogen alpha channel only

An older zoom in version:








APOD, Astro Anarchy gets published



[nasa-large.jpg]
Astronomy Picture of the Day
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My Image of the "Crescent Nebula", NGC 6888, was selected as an "Astronomy Picture of the Day" by the NASA.
You can see the NASA page here: http://apod.nasa.gov/apod/ap120816.html
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NGC 6888, the "Crescent Nebula"



riginal blog post, with the technical details and more images, can be seen here:






Wednesday, August 8, 2012

Cygnus zoom in series, the "Crescent Nebula, NGC 6888



Due the high latitude, 65N, deep sky astronomical imaging can't be done up here yet.
Instead I made an other  zoom in series from my older material to show the apparent scale in the sky.

This time I'm zooming from 23 to 0,3 degrees of sky at the direction of NGC 6888 in Cygnus.

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 level of details.
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 have added a "Moon circle" in 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.



Cygnus zoom in series, a study of the apparent scale in the sky.
Note. The apparent size of the full Moon is marked as a gray circle at upper Right corner.








A star map for the orientation




Images used in this series:

A giant, 18-panels, mosaic of the Cygnus constellation with 200mm canon EF at f1.8:
http://astroanarchy.blogspot.com/2011/12/cygnus-mosaic-18-panels-and-22-x-14.html

Closeup of NGC 6888, the "Crescent Nebula" with Meade LX 200 GPS, reduced to f5 ~2000mm:
http://astroanarchy.blogspot.fi/2011/01/ngc-6888-crescent-nebula-reprocessed.html