Partial Solar Eclipse in different colors

The partial solar eclipse above Belgium was observed using solar continuum filter, solar filter ND3.8 and Ca-K line filter.

Setting : Nikon D7500 and TAL200K f/8.5. Final editing using CS4.

Some more picture of NLC on June 9, 2021

My first observation of  NLC was about UT21h00. I kept on looking untill UT22h00.

Noctilucent Clouds Above Averbode

This evening some bright noctilucent clouds above north-western horizon. They reached a max of 35° above the horizon.

 

NLC

Currently NLC above Averbode (Belgium). Picture taken with iPhone 11

What is polarization? Event Horizon Telescope

The Radboud University Nijmegen made a youtube video explaining the phenomenon of polarization of light. This video, made by "director" Sara Issaoun,  helps understanding the recent picture from the black hole in M87.

All details about the recent image of the magnetic fields around the black hole in M87 can be found on the webpage of the Event Horizon Telescope.

Sun with Sunspot AR2827

This evening the Sun was photographed with two sunspots (of which one is AR2827). The picture is a combination of two pictures : one with baader astrosolar ND3.8, the other with baader astrosolar ND3.8, solar continuum filter (540nm) and IR/UV blocker filter.

The combination was made using CS4 in DNG format.

This was also a general repetition for next week partial solar eclipse.

NGC5566 (ARP286)

A trio galaxy in Virgo : NGC5560, 5566 and 5569 all at a distance of 65 million ly away from Earth. The trio is also known as ARP286

Setting : Nikon D7500 with TAL200K f/8.5. ISO400, exposure time 60x60s with darks, flats, darkflats and bias. Stacking using APP and final editing with CS4.