Observing and Imaging Double and Variable Stars

973 topics in this forum

1. Useful Double Star links & Websites 1 2

   By lunator, October 28, 2010
   • 25 replies
   • 11.3k views
   • 
   • John
   • February 28

2. Tutorial: Observing Variable Stars 1 2

   By Dave Smith, February 2, 2019
   • 46 replies
   • 7.6k views
   • 
   • Xilman
   • June 14, 2022

3. Visual double stars: colour & aperture 1 2 3

   By JeremyS, November 19, 2023
   • 56 replies
   • 2.2k views
   • 
   • Mr Spock
   • Saturday at 08:45

4. Algorab (Delta Corvi)

   By IB20, Thursday at 22:05
   • 2 replies
   • 72 views
   • 
   • Mr Spock
   • Friday at 08:36

5. Selecting, Adapting and Using a Microscope Filar Micrometer for Astrometric Measurements

   By quesne, March 22
   • 3 replies
   • 208 views
   • 
   • quesne
   • Wednesday at 15:08

6. Messing around with Mira's

   By lunator, April 28
   • 0 replies
   • 85 views
   • 
   • lunator
   • April 28

7. Corona Borealis + Boötes

   By wookie1965, April 10
   • 3 replies
   • 124 views
   • 
   • Knighty2112
   • April 26

8. Doubles 30/03/24 - Gem/Can border

   By Mr Spock, April 3
   • 8 replies
   • 202 views
   • 
   • Mr Spock
   • April 4

9. A few doubles from Feb/Mar.

   By lunator, March 14
   • 4 replies
   • 187 views
   • 
   • wookie1965
   • April 4

10. Observing report 30/03/2024

    By lunator, March 31
    • 8 replies
    • 117 views
    • 
    • wookie1965
    • April 4

11. Alnitak- Zeta Orionis

    By NGC 1502, February 25
    • 1 reply
    • 196 views
    • 
    • josefk
    • February 25

12. A few more drawings from Hercules

    By Mr Spock, August 25, 2023
    • 2 replies
    • 723 views
    • 
    • mikeDnight
    • February 14

13. How to calculate minimum resolvable separation given aperture and magnification? 1 2

    By The60mmKid, February 8
    • 25 replies
    • 582 views
    • 
    • cloudsweeper
    • February 9

14. Do double stars exist?

    By Richard N, February 1
    • 11 replies
    • 330 views
    • 
    • The60mmKid
    • February 8

15. Eta Geminorum: a gem in Gemini

    By Nik271, February 3
    • 2 replies
    • 236 views
    • 
    • chiltonstar
    • February 3

16. Double Star Photometry using Reduc

    By Richard N, January 31
    • 1 reply
    • 175 views
    • 
    • lunator
    • January 31

17. Aries / Triangulum 26/01/2024

    By Mr Spock, January 27
    • 2 replies
    • 283 views
    • 
    • lunator
    • January 28

18. A Few Doubles from 10 & 18th

    By lunator, January 20
    • 3 replies
    • 221 views
    • 
    • lunator
    • January 21

19. Photometry - variable stars

    By Richard N, January 15
    • 1 reply
    • 273 views
    • 
    • JeremyS
    • January 15

20. New Double Star Book

    By lunator, June 12, 2023   

    • doubles
    • doublestar
    • (and 5 more)

      Tagged with:

      • doubles
      • doublestar
      • double star
      • binary star
      • binary double
      • astronomy
      • visual double star
    • 9 replies
    • 1.6k views
    • 
    • jasonhudson
    • December 24, 2023

21. First attempt at photometry of an exoplanet transit- HAT-P-53 b

    By catburglar, December 2, 2023
    • 6 replies
    • 556 views
    • 
    • catburglar
    • December 3, 2023

22. Mircea's "Lockyer's List"

    By badhex, November 26, 2023
    • 5 replies
    • 391 views
    • 
    • lunator
    • November 26, 2023

23. Double star separation estimate

    By Sunshine, November 18, 2023
    • 16 replies
    • 507 views
    • 
    • lunator
    • November 18, 2023

24. Visual image between frac and maksutov.

    By tico, November 13, 2023
    • 13 replies
    • 626 views
    • 
    • The60mmKid
    • November 18, 2023

25. Small telescope for double Star. 1 2

    By tico, September 13, 2023
    • 27 replies
    • 1.3k views
    • 
    • tuckstar
    • November 17, 2023