Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Roberto on Jul 27, 2019, 18:48:14

Title: Delta Cygni - one for the double star enthusiasts
Post by: Roberto on Jul 27, 2019, 18:48:14
Thought about posting this just now; I suppose depressed by all the rain!  :! Taken a few days ago. Details at:  https://www.astrobin.com/416832/

(https://cdn.astrobin.com/thumbs/jkqIT_KF-Xz5_16536x16536_pNrtFuBm.jpg)

Roberto
Title: Re: Delta Cygni - one for the double star enthusiasts
Post by: doug on Jul 28, 2019, 09:03:51
Beautiful image, Roberto.  Howza `bout a few more double star images from some of you imagers?

Doug.
Title: Re: Delta Cygni - one for the double star enthusiasts
Post by: Roberto on Jul 28, 2019, 10:51:14
Thank you Doug. This was taken just before the heatwave as seeing was particularly steady with the new weather front moving in. I have to say that I much prefer observing doubles rather than imaging them. They look much nicer at the eyepiece!
Title: Re: Delta Cygni - one for the double star enthusiasts
Post by: doug on Jul 29, 2019, 09:14:06
Totally agree with you there, Roberto. To see them is wonderful and the colours can differ so much.

Doug.
Title: Re: Delta Cygni - one for the double star enthusiasts
Post by: Carole on Jul 29, 2019, 17:14:15
QuoteHowza `bout a few more double star images from some of you imagers?
I'm afraid I don't find imaging double stars interesting enough to bother with.

Carole
Title: Re: Delta Cygni - one for the double star enthusiasts
Post by: NoelC on Jul 30, 2019, 09:27:51
Interesting write up in Astrobin.  Obviously a lot more complex than just point and shoot Roberto.  Well done.
Is that an Airy disk around Delta Cygni?

Noel
Title: Re: Delta Cygni - one for the double star enthusiasts
Post by: Roberto on Jul 30, 2019, 09:43:36
Hi Noel

Yes, I tried to capture the Airy disc. There was one around the secondary but it was too faint to show up in the video.
Thanks

Roberto
Title: Re: Delta Cygni - one for the double star enthusiasts
Post by: doug on Jul 30, 2019, 10:28:15
Did you know ..... Albeiro is a line-of-sight double, as opposed to a rotating double ..... or so I read somewhere.

Doug.