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Here comes the Sun!
http://www.boltonastro.co.uk/forums/viewtopic.php?f=18&t=784
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Author:  rwilkinson [ Sat Aug 08, 2015 8:13 pm ]
Post subject:  Here comes the Sun!

Even if we didn't get much of a view of the Sun last Tuesday, it made a better appearance this afternoon, allowing me to experiment with our Trust WB5400 webcam on the back of my TS70ED refractor.
With its 420mm focal length, I could just fit the whole Sun onto the CCD:
Attachment:
File comment: Sun on 8-Aug: stack of 150 frames.
sun_8aug.png
sun_8aug.png [ 245.33 KiB | Viewed 3436 times ]
I used the AutoStakkert! program (as recommended by Damian Peach) for stacking and then exported a .TIF file into IRIS for the wavelet filtering.
I used a "white light" filter (made from AstroSolar film) on the front of the telescope, and the video was shot in monochrome, so I added the "warm" colour-balance using IRIS.

Author:  bbones [ Sun Aug 09, 2015 9:53 am ]
Post subject:  Re: Here comes the Sun!

Nice one Ross,

Author:  cstone [ Sun Aug 09, 2015 10:52 am ]
Post subject:  Re: Here comes the Sun!

Good shot!

Author:  rwilkinson [ Sat Aug 22, 2015 4:48 pm ]
Post subject:  Re: Here comes the Sun!

The "quiet" side of the Sun was turned our way last weekend, but today there was a very active sunspot area on view:

Attachments:
File comment: Sun on 22-Aug-2015 using 70ED refractor with AstroSolar filter and Trust Webcam
sun_22aug15.png
sun_22aug15.png [ 242.59 KiB | Viewed 3374 times ]

Author:  rwilkinson [ Mon Sep 14, 2015 7:48 am ]
Post subject:  Here comes the Sun (in Norfolk)

Yes, we did get to see a fair amount of Sun from the Norfolk star-camp this year. 8-)
Although it was raining when we arrived on the Tuesday, by the following day (Weds 9th) it had cleared up nicely, so I tried some solar imaging:
Attachment:
File comment: Sun on 9-Sep using Baader AstroSolar (white-light) filter on my 70ED refractor.
AVI sequence captured on Trust WB5400 webcam and processed in IRIS

sun_9sep_white.png
sun_9sep_white.png [ 191.95 KiB | Viewed 3252 times ]
Attachment:
File comment: Sun on 9-Sep using the BAS Coronado SM60 hydrogen-alpha scope.
AVI sequence captured on Trust WB5400 webcam and processed in IRIS

sun_9sep_coronado.png
sun_9sep_coronado.png [ 204 KiB | Viewed 3252 times ]

Then the following day I borrowed Keith's Lunt solar telescope and had a go with that:
Attachment:
File comment: Sun on 10-Sep using Lunt hydrogen-alpha scope.
AVI sequence captured on Trust WB5400 webcam and processed in IRIS

sun_10sep_lunt.png
sun_10sep_lunt.png [ 281.07 KiB | Viewed 3252 times ]
(The sun was even quieter by then, so I increased the gain in processing the prominences to see what I could detect)

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