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.


Betelgeuse And Sirius

First spectra obtained using my homemade diffraction grating on my 127mm Meade refractor. Two mov. clips were obtained by hand holding a compact digital camera afocal style behind the eyepiece. I then converted the clips to AVis, stacked them using AutoStakkert and then played about with the results in APS. I chose the two stars because they are so very different and bright. More by luck than judgement the spectra look remarkably different, so I must be doing something right. I will try using my DSLR and QHY5v to obtain better results. Have read a bit about calibration and somewhat daunted, will give it some more thought. I use some of the functions of the freeware IRIS and have noticed some buttons relating to spectra guess I could always push them and see what happens!

From the album:


  • 2 images
  • 0 image comments

Recommended Comments

There are no comments to display.

Join the conversation

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

Add a comment...

×   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.

  • Create New...

Important Information

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