Wednesday, November 11, 2015
Thursday, August 27, 2015
Tuesday, July 21, 2015
|March 2015: Metal pillars soldered, starting to build walls|
|March 2015: Walls finished|
Monday, July 20, 2015
Lately I have seen some messages in the forums related with blue bloating and new CCDs. Current market heads for small chips and very small pixels with very low read noise.
The problem with new chips is that small pixels and refractors are not well paired, since small refractors have big spot sizes (and we can say that 4-8" may be considered small).
It's very difficult to have a small fast refractor corrected enough for new CCDs, so that was my fear with the setup. I did some extensive research for choosing my current gear, and I think I did it right.
TMB 152 and Atik 460 EX passed the test of blue bloat. I cannot detect any bloating, and the FWHM seems pretty right:
The star shape across the CCD is pretty good:
|Single L 5 min sub with 7331 on corner|
|Aberration evaluation, very good star shape on corners|
|FWHM, very low variation on corners|
Thursday, July 16, 2015
I'm glad to be back to astrophotography, after a full 3 year lapsus of reorganizing my equipment and building my own observatory. In fact, this image represent all this suffering.
My new location, which is going to be permanent, has about 21.5 SQM and Bortle 3 scale. FWHM 2,5" is considered bad seeing here, while 1,5" is considered as normal. So I think this is going to be a lot of fun.
Will be posting pics of my observatory soon. Still working hard on it.
|M57, link to Astrobin|
Monday, March 9, 2015
|December 2014: Starting to dig the first hole (by hand!)|
|February 2015: Both 1 cubic meter holes finished, rebar for each column. Formwork nearly finished.|
|March 2015: 35cm diameter column in place and secured, ready to pour.|
|March 2015: Formwork ready, waiting for the concrete mixer!|
|March 2015: Concrete poured, nice temperature around 14ºC|
|March 2015: Concrete pad finished, bottom plates in place (35x35x3cm)|