Observing and Imaging Double and Variable Stars

972 topics in this forum

1. A call to arms: extragalactic variable star observation.

   By Xilman, November 19, 2021
   • 1 reply
   • 466 views
   • 
   • Mr Spock
   • November 19, 2021

2. Favourite doubles 1 2

   By MylesGibson, November 12, 2021
   • 37 replies
   • 1.8k views
   • 
   • Mr Spock
   • November 19, 2021

3. Problem with "Anthology of Visual Double Stars" Argyle, Swan, James

   By mikemarotta, June 10, 2021
   • 3 replies
   • 667 views
   • 
   • Mr Spock
   • November 19, 2021

4. Almach – The Jewel of Andromeda

   By Mr Spock, November 15, 2021
   • 10 replies
   • 567 views
   • 
   • MylesGibson
   • November 17, 2021

5. Polaris and Its Companion

   By orion25, November 5, 2021
   • 8 replies
   • 867 views
   • 
   • orion25
   • November 14, 2021

6. Alnitak with ED80

   By NGC 1502, November 13, 2021
   • 7 replies
   • 735 views
   • 
   • NGC 1502
   • November 13, 2021

7. Rare outburst of the dwarf nova LL And

   By JeremyS, September 16, 2021
   • 2 replies
   • 620 views
   • 
   • JeremyS
   • October 23, 2021

8. MV Lyr is fading

   By JeremyS, September 28, 2021
   • 0 replies
   • 528 views
   • 
   • JeremyS
   • September 28, 2021

9. Exoplanets

   By Xilman, July 14, 2021   

   • exoplanets
   • transits
   • (and 1 more)

     Tagged with:

     • exoplanets
     • transits
     • physics
   • 11 replies
   • 918 views
   • 
   • Xilman
   • September 7, 2021

10. Eclipsing Binary Observing Guide - free download

    By JeremyS, August 23, 2021
    • 0 replies
    • 566 views
    • 
    • JeremyS
    • August 23, 2021

11. Active galaxy, BL Lac, unusually bright

    By JeremyS, August 7, 2021
    • 0 replies
    • 623 views
    • 
    • JeremyS
    • August 7, 2021

12. Lambda Cygni - AN's August star of the month....

    By chiltonstar, July 20, 2017
    • 9 replies
    • 1.3k views
    • 
    • wookie1965
    • July 20, 2021

13. Do I need a V filter?

    By daz, January 28, 2021
    • 17 replies
    • 1.3k views
    • 
    • BinocularSky
    • June 20, 2021

14. CG Draconis - a Dwarf Nova, Light Curve and Mini-Review

    By Maxim Usatov, May 18, 2021
    • 2 replies
    • 548 views
    • 
    • Maxim Usatov
    • May 18, 2021

15. Castor

    By Peter_D, April 28, 2021
    • 8 replies
    • 713 views
    • 
    • PeterW
    • April 29, 2021

16. Binary challenges for March.

    By cotterless45, March 7, 2017
    • 6 replies
    • 1k views
    • 
    • Mark Hardaker
    • April 27, 2021

17. Introducing the MetroPSF photometry program

    By Maxim Usatov, April 8, 2021
    • 9 replies
    • 863 views
    • 
    • Guest
    • April 13, 2021

18. SN 2021hpr, type Ia supernova in NGC3147

    By Maxim Usatov, April 11, 2021
    • 0 replies
    • 575 views
    • 
    • Maxim Usatov
    • April 11, 2021

19. AT2021gmj Type II Supernova in NGC 3310 (UMa)

    By Maxim Usatov, March 23, 2021
    • 1 reply
    • 537 views
    • 
    • Maxim Usatov
    • April 11, 2021

20. Problem with order of processing

    By Guest, April 2, 2021
    • 2 replies
    • 703 views
    • 
    • Guest
    • April 2, 2021

21. Overlapped stacking

    By Guest, March 25, 2021
    • 16 replies
    • 880 views
    • 
    • Xilman
    • March 31, 2021

22. Iota Cassiopeiae

    By jason.p, January 17, 2015
    • 7 replies
    • 2.1k views
    • 
    • runway77
    • March 17, 2021

23. Stacking by addition

    By Guest, February 23, 2021
    • 17 replies
    • 848 views
    • 
    • JRWASTRO
    • March 15, 2021

24. DSLR raw image series requested for testing

    By han59, February 20, 2021
    • 0 replies
    • 487 views
    • 
    • han59
    • February 20, 2021

25. Debayering for photometry

    By Guest, February 14, 2021
    • 8 replies
    • 857 views
    • 
    • han59
    • February 20, 2021