Subscribe to Flamsteed via Email

Enter your email address to subscribe to this website and receive notifications of new posts by email.

Join 1,742 other subscribers

Home Forums Observing and Imaging Group Preparation for the Solar Eclipse

Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
    Posts
  • #10599
    Mike Meynell
    Moderator
    Topics: 119
    Replies: 756

    Spent a bit of time this afternoon experimenting with various bits of kit for the forthcoming solar eclipse on 20th March.

    Given that we look like having a multitude of scopes available at the Royal Observatory Greenwich for our viewing event, I thought I’d try something a little different. So, I’m intending to bring a DSLR with a telephoto lens and 2x lens extender, taking the focal length to 400mm (600mm equivalent with a cropped sensor). I’ve got a Thousand Oaks solar filter for the camera lens, which gives a nice yellow-orange colour to the Sun.

    It’s not going to produce the most detailed of images, but my idea is to connect the camera to a laptop so that people can see a live image of the Sun.

    The Sun was disappointingly free of any activity this afternoon, apart from a sunspot near the eastern limb. Still, my set up managed to pick up the sunspot quite nicely:

    Sun white light filter through DSLR by MikeMey67[/url], on Flickr

    This is just a single shot (1/100 second, ISO 100, f/5.6, 400mm focal length).

    All we need now are clear skies on the morning of Friday 20 March!

    #10600
    Tej
    Participant
    Topics: 39
    Replies: 597

    The visitors are going to love seeing that orange sun on the laptop screen, Mike. I also bought a Thousand Oaks filter (and glasses!) to enjoy the look of the sun. Its not that sharp though, compared to my solar wedge or Baader filter but as you say for a live show, its perfect! I really regret I wont be there 🙁

    #10602
    BillOB
    Participant
    Topics: 21
    Replies: 38

    Do you know where this sunspot will be on Friday 20th at the time of the eclipse?

     

    #10603
    Mike Meynell
    Moderator
    Topics: 119
    Replies: 756

    Do you know where this sunspot will be on Friday 20th at the time of the eclipse?

    I suspect it may just be disappearing off the western limb by 20 March – it may just be still visible. The Sun is really quiet at the moment, even though this active region did produce a near X-class flare on Saturday. It would be nice to have a few sunspots to view during the solar eclipse, but I’d settle for clear skies!

    #10608
    Clive Inglis
    Participant
    Topics: 17
    Replies: 41

    The appearance of this large sunspot coincides with the increase in solar flare activity observed in the GEOS 15 data and on the VLF daily chart for yesterday. So perhaps a few more spots for the 20th?

Viewing 5 posts - 1 through 5 (of 5 total)
  • You must be logged in to reply to this topic.