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_globular_clusters_winners.thumb.jpg.13b743f39f721323cb5d76f07724c489.jpg

Tykeviewer

Members
  • Content Count

    69
  • Joined

  • Last visited

Community Reputation

80 Excellent

About Tykeviewer

  • Rank
    Nebula

Profile Information

  • Gender
    Not Telling
  • Location
    Warrington
  1. I tried, but didn’t understand a word of it ? https://physics.stackexchange.com/questions/72824/what-is-the-shape-of-a-black-hole
  2. Wouldn’t the shape of the event horizon be determined by the shape of the mass acting on it - in other words the shape of the black hole (which cannot have shape if it is a singularity - so back to square 1 ? ).
  3. The second promoted comment on this article suggests that it should appear the same, regardless of the point of view of the observer. I don’t really follow the explanation though. https://arstechnica.com/science/2019/04/event-horizon-telescope-gives-us-first-images-of-what-its-named-for/
  4. If it is elliptical because of its spin, then it would imply it has volume. A singularity, however, cannot have volume. ?
  5. It has been described as “perfectly circular”, but to me it looks elliptical, or possibly even ‘egg-shaped’. Has anyone seen any discussion on that aspect?
  6. My first attempt at a star trails image made using starstax. I set my EOS 6D (with Magic Lantern) taking time-lapse images overnight on 30/07/16, and this was the result:
  7. My effort ... I had to resort to using a DSLR with a 400mm lens, because the moisture got into my scope and rendered the handset communications u/s
  8. Tykeviewer

    Tykeviewer1

    Miscellaneous images
  9. I was experimenting with time-lapse photography in my light polluted back garden last night, 29/07/15, and captured a new galaxy! A link to the movie is given below, beginning at twilight. The camera was pointed due south, but was fitted with a wide angle lens at 14mm on a full frame DSLR, so has quite a wide field of view. Look for the new galaxy from about half-way through. The principal stars forming a triangle are as follows; the top left corner is Deneb, the top right is Vega, and the bottom is Altair. https://youtu.be/puZGhWtWDZE I consulted every astronomy app to try to identify the new galaxy, before realising that it didn't move as the earth turned. Sadly, it seems that my discovery of this new galaxy is nothing more than an optical effect of the streetlight on the fish-eye lens. Oh well, can't win 'em all Paul
  10. This is a link to a video I made in 2012. Paul.
  11. They are the darker images (the pages change daily); here is the latest example: http://pluto.jhuapl.edu/soc/Pluto-Encounter/view_obs.php?image=data/pluto/level2/lor/jpeg/029682/lor_0296826898_0x630_sci_1.jpg&utc_time=2015-06-17<br>06:03:00 UTC&description=OpNav+Campaign+4%2C+LORRI+1X1&target=PLUTO&range=32.4M km&exposure=100 msec
  12. If you look at the unprocessed images, it still doesn't look round ...... http://pluto.jhuapl.edu/soc/Pluto-Encounter/index.php
  13. Here is a sequence I managed to capture, despite the clouds rolling in towards the end.... Paul
  14. Hmm, seems as though animated GIFs don't work Here are the individual frames..... I saw all three shadows, but the last one was tricky because the clouds began to roll in at the crucial time. Paul.
×
×
  • Create New...

Important Information

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