Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_dslr_mirrorlesss_winners.thumb.jpg.9deb4a8db27e7485a7bb99d98667c94e.jpg

Alan White

Does anyone image double stars?

Recommended Posts

Something random popped into my head, I have to now venture to the dark side and ask......

Us visual guys and girls love double stars and the challenge of seeing and splitting them,
so for imagers, does anyone do this imaging?
 

Share this post


Link to post
Share on other sites

Yes I have done a little of this. Mostly stacked shortish exposures of 10 to 30 seconds but I am wanting to try the lucky imaging technique with video files. 

 

  • Like 1

Share this post


Link to post
Share on other sites

It's a good question to ask.     Imagers try to get a 'good shot'   ie....  variety of interest, texture, colour  etc .  Visual observers focus on the main event centred in the middle of their eyepiece.

Most doubles are going to be close and hence you limit the FOV and  consequently the surrounding star field.   Relative brightness may appear differently in an image as opposed to the visual due to the differing sensitivities of the eyeball  and the CCD.   Colour  perception, I imagine is a subjective thing to visual observers whereas  stacking, stretching, post processing can do all  manner of things to the 'colour' of a pixel.

If I were to image more doubles, I would chose nice wide, colourful pairs.......    like Albireo........

1264841217_ALBIREO-5x5secxLRGBcolorPS.thumb.jpg.7ed70f9ee32f556462bd50db0059851e.jpg

 

5x5 second LRGB   with a 150mm F4 Newtonian.

Edited by Craney
  • Like 2

Share this post


Link to post
Share on other sites

I took a shot on a limited session a few years ago 

Shot with my sct and dslr, obviously zoomed in 

20160909_214811_LLS.jpg

  • Like 2

Share this post


Link to post
Share on other sites

Thanks all, so not a nutty question to ask.
I did foresee it would be a negative answer as it will not make too exciting an image,
but an image it makes 👍

Share this post


Link to post
Share on other sites

I did Albireo a while back too, but seem to have lost it.

Here's one that a lot of us may have inadvertently got - Alnitak and its double:

alnitak.PNG.fe86896711c7a8a7160792e1da146386.PNG

  • Like 2
  • Thanks 1

Share this post


Link to post
Share on other sites

What a brilliant thing to do! I really hope this brings out of the woodwork those who have a secret passion for double stars, and yet love to image. And you've got the flame in your image just as an extra treat. :thumbsup: 

I don't image, but I could see myself getting interested in this!

  • Like 1

Share this post


Link to post
Share on other sites

I have done this in the past.

Mostly Afocal . The advantage of doing it this way is the ability to vary the magnification. I think the closet pair I did were around 2-3".

Most of my images I posted in the double star section of the forum.

I plan to start again soon.

Cheers

Ian

  • Like 2

Share this post


Link to post
Share on other sites

I've got another one actually - this one's a quintuple system in the middle of the Rosette:

quintuple.PNG.b82dddea1c9f9bd390fdbb5fc7a982b3.PNG

 

I think we imagers tend to capture them by accident though - according to Wikipedia, about 1/3 of the stars in our galaxy are multiple systems, so I've captured hundreds of them  🙂

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.