[HN Gopher] Time lapse of this week's large sunspot
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Time lapse of this week's large sunspot
Author : gattr
Score : 18 points
Date : 2023-06-30 21:36 UTC (1 hours ago)
(HTM) web link (www.astrobin.com)
(TXT) w3m dump (www.astrobin.com)
| jcims wrote:
| Astrobin is an amazing resource. Like Flickr for astronomers
|
| https://www.astrobin.com/search/?d=i
|
| It's amazing what some people are able to do with relatively
| modest (and not-so-modest) equipment.
| helij wrote:
| This one was visible with naked eyes using appropriate white
| light filters.
| xnx wrote:
| The heavy smoke in the Midwest made it easily viewable through
| phone camera zoom.
| gattr wrote:
| Captured with a 180 mm diameter telescope. The animation spans 20
| minutes, with 20-second intervals between frames.
|
| edit:
|
| Also available as a smaller-sized H264 MP4 [1].
|
| [1]
| https://www.cloudynights.com/gallery/image/182808-ar-3354-an...
| jcims wrote:
| Nicely done! Any idea what the field of view is?
| gattr wrote:
| Thanks! The horizontal FOV is around 5 arcminutes. The
| granules (the bright convection cells comprising most of the
| image around the sunspots) are about 1000 km across on
| average.
| jcims wrote:
| That's wild!
| thghtihadanacct wrote:
| Nice. Now this is quality content. GJ
| dylan604 wrote:
| I have long decided that my next major astro purchase would be
| for solar observation, so I'm very jelly!!
|
| The closest I've gotten is being a little hacker and written a
| wget script to download from SOHO, but I feel like that's
| cheating compared to you ;-)
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(page generated 2023-06-30 23:00 UTC)