General Astronomy

45 articles in this category

1. The Catalog of Principal Galaxies (PGC)

   By Reggie Jones, September 6, 2023
   • 0 comments
   • 292 views
   • 
   • Added by Reggie Jones
   • September 6, 2023

2. Menzel Catalog

   By Reggie Jones, September 9, 2023
   • 0 comments
   • 140 views
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   • Added by Reggie Jones
   • September 9, 2023

3. The Mt Wilson Observatory

   By Reggie Jones, September 9, 2023
   • 0 comments
   • 294 views
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   • Added by Reggie Jones
   • September 9, 2023

4. The Bortle Scale

   By Reggie Jones, September 10, 2023
   • 0 comments
   • 355 views
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   • Added by Reggie Jones
   • September 10, 2023

5. THE GIANT MAGELLAN TELESCOPE

   By Jim DeLillo, September 13, 2023
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   • 265 views
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   • Added by Jim DeLillo
   • September 13, 2023

6. MEASURING THE DEEP SKY

   By Jim DeLillo, September 13, 2023
   • 0 comments
   • 240 views
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   • Added by Jim DeLillo
   • September 13, 2023

7. NOT ONLY MESS’ING AROUND

   By Jim DeLillo, September 13, 2023
   • 0 comments
   • 182 views
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   • Added by Jim DeLillo
   • September 13, 2023

8. THE DIFFERENCE BETWEEN REFLECTOR TELESCOPES AND REFRACTOR TELESCOPES

   By Jim DeLillo, September 13, 2023
   • 0 comments
   • 254 views
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   • Added by Jim DeLillo
   • September 13, 2023

9. Deep Sky Classification

   By Caterina Rocchetto, September 19, 2023
   • 0 comments
   • 129 views
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   • Added by Caterina Rocchetto
   • September 19, 2023

10. What is a Star?

    By Caterina Rocchetto, September 19, 2023
    • 0 comments
    • 129 views
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    • Added by Caterina Rocchetto
    • September 19, 2023

11. What is an Asteroid?

    By Caterina Rocchetto, September 19, 2023
    • 0 comments
    • 142 views
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    • Added by Caterina Rocchetto
    • September 19, 2023

12. What is a Star Cluster?

    By Caterina Rocchetto, September 19, 2023
    • 0 comments
    • 164 views
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    • Added by Caterina Rocchetto
    • September 19, 2023

13. What is a Comet?

    By Caterina Rocchetto, September 20, 2023
    • 0 comments
    • 389 views
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    • Added by Caterina Rocchetto
    • September 20, 2023

14. What is a Supernova?

    By Caterina Rocchetto, September 20, 2023
    • 0 comments
    • 203 views
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    • Added by Caterina Rocchetto
    • September 20, 2023

15. How old is a Star?

    By Caterina Rocchetto, September 20, 2023
    • 0 comments
    • 121 views
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    • Added by Caterina Rocchetto
    • September 20, 2023

16. How a Star Dies

    By Caterina Rocchetto, September 20, 2023
    • 0 comments
    • 156 views
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    • Added by Caterina Rocchetto
    • September 20, 2023

17. How old is a Galaxy?

    By Caterina Rocchetto, September 20, 2023
    • 0 comments
    • 116 views
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    • Added by Caterina Rocchetto
    • September 20, 2023

18. What is Astrophotography?

    By Caterina Rocchetto, September 20, 2023
    • 0 comments
    • 145 views
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    • Added by Caterina Rocchetto
    • September 20, 2023

19. What is a light-year?

    By Caterina Rocchetto, September 20, 2023
    • 0 comments
    • 178 views
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    • Added by Caterina Rocchetto
    • September 20, 2023

20. What is a Dark Nebula?

    By Caterina Rocchetto, September 25, 2023
    • 0 comments
    • 182 views
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    • Added by Caterina Rocchetto
    • September 25, 2023

21. What is a Planetary Nebula?

    By Caterina Rocchetto, September 25, 2023
    • 0 comments
    • 157 views
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    • Added by Caterina Rocchetto
    • September 25, 2023

22. What is an Active Galactic Nucleus ?

    By Caterina Rocchetto, September 25, 2023
    • 0 comments
    • 140 views
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    • Added by Caterina Rocchetto
    • September 25, 2023

23. Star-forming regions

    By Caterina Rocchetto, September 25, 2023
    • 0 comments
    • 114 views
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    • Added by Caterina Rocchetto
    • September 25, 2023

24. What is an emission-line star?

    By Caterina Rocchetto, September 25, 2023
    • 0 comments
    • 122 views
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    • Added by Caterina Rocchetto
    • September 25, 2023

25. What is a galaxy group ?

    By Caterina Rocchetto, September 25, 2023
    • 0 comments
    • 135 views
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    • Added by Caterina Rocchetto
    • September 25, 2023