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AstroWolvy

Chromosphere Flares Activity and prominences

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I just finished to work on the data of 2 weeks ago.

The animation represent a close up portion of the Sun of 4 May. Images taken with a 100 ed refractor using a Daystar h-alpha filter at a focal of 2200mm, I reduced the focal do to a terrible seeing.

I decided to follow for a couple of hours the NOAA 1734 zone, the bigger one of the week with the hope to catch a big X flares like the yeasterday one. Even if the seeing and the video compression had blured alot of details, the filaments and spicules movements are evident, also a couple of mini flares are visible during the time-lapse. Hope in bigger one next time. :)

The mosaic instead was captured the last weekend at the same focal of 2200, 6 images at different exposure for disc and proms (click on it for the zoom).

I also captured a serie of movies to assemble a time-lapse of the prominence, but still on working.

8739464636_a4e7ee1268_c_d.jpg

post-27443-0-61735600-1368638023_thumb.j

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Wonderful work Paolo :) the detail and quality is superb :)

Alexandra

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Gorgeous images. Love the proms.

James

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Love these kind of shots great work.

This maybe a silly ask but can i use a Daystar H alpha filter with my C8 & 600D (or DMK) & capture stuff like this ?

I thought l needed a dedicated solar scope , if i can i assume i still need the Baader Solar filter on as well ?

Look forward to some more of your captures.

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This maybe a silly ask but can i use a Daystar H alpha filter with my C8 & 600D (or DMK) & capture stuff like this ?

I thought l needed a dedicated solar scope , if i can i assume i still need the Baader Solar filter on as well ?

you can use a daystar o solar spectrum filter (they work at the same way) with any instrument.

You only has to follow 2 rule.

1. an Erf filter in front of the telescope to reduce the energy incoming

2. reach an f/30 optic before the filter, you can then use a reducer after it (i always do)

With the reflector telescope it is used the off-axys reduction, but in a C8 the free glass is too small (63mm) to justify the cost, you need a C11-C14 to reach a 90-115mm. Consider that with those big tubes you will fight against inside turbolence.

Usually below 20cm is preferred the refractor system.

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