> A dream come true

  • Posted on: 10 October 2020
  • By: tihomiry

Nowadays we are so into the globalization and technologies, that I can submit observation plan to a remote, professional observatory at the other part of the word!
Yes I can image the southern sky with a "telescope hosting" at Chile. This country is astronomer's dream as we have there mountain and desert with perfect dark sky and seeing conditions. I recently use El Sauce observatory trough telescope.live.
It was challenging and exiting to plan observation at souther hemisphere and then process real professional data in FITS format (by the way I do not like it as it is hard to
extract all the dynamic range from it. There is not so much good software that reads it).
The target I submited is very special for me. It is the minor planet Gabrovo (2206 Gabrova), named to my home town and discovered in 1976 by Nikolay Chernih.
I actually try to shoot it with my telescope but failed to recognise it (it turns out later that it was actually on the image), so I use the 60cm RC telescope of El Sauce observatory.
This a great step towards my scientific explorations. Thank you Galactic Hunter for letting me know for this platform :)

Here is Galactic Hunter youtube channel

Red more on page 18 of Amateur Astrophotography magazine

And here it is the first digital image of 2206 Gabrova

Gabrova 2206

Reading a new product that claims to be 100x time more powerful then conventional telescope, I realise that this is just an astrograph with a digital camera that is doing stacked images and show them trought eyepiece or App.

I am so impressed with the K5 ability to quickly gather signal from nebulas (Quantum efficiency) and galaxies, so I decide to take one more K5 and to remove the IR-cut Filter of the old one.

Recently I got one very good lens the Asahi Takumar 135mm 1:2.5. This is fast telephoto lens and from my point of view a good lens should be with aperture from 1:1,2 to 1:2,8.

Moon at 45% illumination and 70x magnification. With aperture of 200mm,14,1 stops dynamic range, color depth of 23.7 bits at this image there are slight color variation on the moon surface that reveals it’s structure.

This is the beginning of my research on how dark the sky could be and what is benefit of a dark sky for astrophotography. I was inspired from those 2 sites. First one presents mathematical model of how dark the sky is.

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