Constellations

https://sleepopolis.com/education/constellations-stars/ ****

https://spaceplace.nasa.gov/constellations/en/

https://spaceplace.nasa.gov/starfinder/en/

https://www.ducksters.com/science/physics/constellations.php

https://kids.britannica.com/kids/article/constellation/352995

https://kids.britannica.com/kids/article/telescope/353843

https://www.messier-objects.com/messier-object-list/ all

https://optcorp.com/blogs/telescopes-101/the-basic-telescope-types

https://www.highpointscientific.com/astronomy-hub/post/astronomy-101/types-of-telescopes

https://www.livescience.com/space/astronomy/types-of-telescope

https://www.aquilatelescope.com/news/the-main-classification-of-telescopes.html

https://www.skyatnightmagazine.

com/advice/a-basic-guide-to-telescope-mounts

https://telescopicwatch.com/types-of-mounts-in-beginner-telescopes/

https://www.youtube.com/watch?v=gpnB5w_gZsI

https://www.quora.com/How-can-we-calculate-the-focal-length-of-a-magnifying-glass

https://nightskygazing.com/parts-of-telescope/ ***

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