What is Deep-Sky Astrophotography‪?‬ Learning by William

My Profile on Astrobin:

https://www.astrobin.com/users/WilliamGott/

Starburst Galaxy (Taken by the President of our Astronomical Society) - Astrobin

https://www.astrobin.com/gek830/

Astrophotography - Wikipedia

https://en.wikipedia.org/wiki/Astrophotography

Milky Way Image (a Shot I Took) - Astrobin

https://www.astrobin.com/be7t7j/

Apochromatic Lens - Wikipedia

https://en.wikipedia.org/wiki/Apochromat

Bino-Refractor that is $27,310 - Deep Space Products

https://www.deepspaceproducts.com/product/cff-bino-refractor-160mm-oil-spaced-triplet-apochromat?gclid=CjwKCAjw1JeJBhB9EiwAV612y4Uq1I-9Q1J7o6-K9mAJFySwplVHqsM1z1FI7PLxqDb3_YqAuTLUbxoC0I4QAvD_BwE

Field Flattener - Night Sky Pix

https://nightskypix.com/what-does-a-field-flattener-do/

Petzval Lens - Wikipedia

https://en.wikipedia.org/wiki/Petzval_lens

Newtonian Reflector - Wikipedia

https://en.wikipedia.org/wiki/Newtonian_telescope

Dolphin Nebula (Diffraction Spikes are Present on Stars) - Astrobin

https://www.astrobin.com/zihlpc/

Schmidt-Cassegrain Telescope - Wikipedia

https://en.wikipedia.org/wiki/Schmidt%E2%80%93Cassegrain_telescope

Telescope Pier - OPT Telescopes

https://optcorp.com/collections/telescope-piers

Planetarium Software - Wikipedia

https://en.wikipedia.org/wiki/Planetarium_software