Roman Tkachenko

I'm very proud that I was involved in the creation of this composite image of 2014 MU69 (Ultima Thule) 🥜 Go #NewHorizons! science.sciencemag.org/content/364/64… nasa.gov/feature/nasa-s…

#PPOD: Nis is a natural satellite of Pluto with a diameter of 49.8 km across its longest dimension. It was discovered along with Pluto's moon Hydra on 15 May 2005 using @HubbleTelescope in advance of the arrival of @NASANewHorizons. Credit: @NASA @JHUAPL @SwRI @_RomanTkachenko

SpaceX's Falcon 9 as seen from Kursk, Russia #SpaceX #Falcon9 #ESA #EarthCARE

ARROKOTH (Reworked image) This reworked image of Arrokoth is the result of big processing work including image registration, stacking, de-stripping, deconvolution e.t.c. to get more detailed view. Enjoy! 1/3

Io as seen by @NASAJuno May 16 2023 Credit: NASA/JPL-Caltech/SwRI/MSSS/Roman Tkachenko

Capella (α Aur) in the daytime. This video was taken on a smartphone through a telescope at 5:10 pm local time, when the Sun was still high.

@TodLauer Yes, that's interesting. I used only a 4-inch telescope and aimed manually.

@_RomanTkachenko Funny - I've been thinking about this recently. I've esily seen down to 3rd magnitude in the day by eye with a 20", and have always wondered how deep I could go with a camera and stacking exposures.

Newly-processed data reveals close-up view of Arrokoth's Sky crater slope.

Comparison between raw image of Arrokoth and processed stack 2/3

Jovian Tango (PJ 50) Credit : NASA/JPL-Caltech/SwRI/MSSS/Roman Tkachenko

Hell of a perfectionist @SpaceX Starlink and C/2022 E3 (ZTF) comet. (Telescope + Smartphone)

Comet C/2022 E3 (ZTF) taken from a light-polluted city. Telescope (110mm) + @Xiaomi budget smartphone 01.28.2023

@lacalaca85 You are welcome

@_RomanTkachenko thanks!

@Tim_Popeman @Xiaomi You are welcome

Image stacking matters! Comet C/2022 E3 (ZTF) taken from a light-polluted city. Telescope (110mm) + @Xiaomi budget smartphone Single frame vs Processed stack of 700f

@lacalaca85 The left one shows more color diversity. The right one is closer to the natural color (as in the official version).

@_RomanTkachenko Wonderful!! What's the difference between the two colorizations? (I haven't seen it in the thread but might've missed it)

@justAfanDavid My pleasure

@_RomanTkachenko Very nice. Thanks for sharing