Neptune Image 2015/09/25(UT)
Alexander Obukhov
A.Obukhov
| Alexander Obukhov (280mm SC) |
I decided to spend one night for color imaging. The goal was to get correct color of the planet. I have performed the following to obtain true color: use of dispersion corrector, background subtraction and setting the color balance with artificial white field. In general, as expected, the planet is almost monochromatic. However, the south side noticeably lighter. And it is lighter only in red and partly green, so the polar region is whiter. Celestron C11, 2.5x barlow, Pierro Astro ADC, Baader UV/IR Cut, ASI224MC 4000 frames x 100 ms[Alexander Obukhov: Moscow Russsia]
 ALPO-Japan Latest
Neptune Section
2015/09/26
| 2015/09/24
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