Hello to all,
no more spots than yesterday but still nice filaments on our star
At the fs60 with its sm40 double stack, glasspath x1.7, BF10 and zwo178mm on GP around 11:10 UT
cordially
stephane
halpha sun on 10 April
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Re: halpha sun on 10 April
Lovely disk Stephane, I was imaging at pretty much the same time as you.
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: halpha sun on 10 April
Hi Stephane,
Nice photos Stephane. I am thinking of buying a Takahashi FS60 refractor. Which model do you have, what focal length is it? Do you use the focal reducer/flattener with it?
On a separate note, I was informed by some solar imagers that an achromat refractor could work for h-alpha wavelength.
Thanks.
Magnus
Solar: H-alpha": Quark Chromosphere filter; Baader white light filters
Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
Cameras: ASI120mm-S,ASI174mm
Mount: SW HEQ5 Pro, SW EQ3 Pro Synscan (SW = Skywatcher),Vixen Polarie tracker (portable setup)
Accessory: SW Auto-focuser
Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
Cameras: ASI120mm-S,ASI174mm
Mount: SW HEQ5 Pro, SW EQ3 Pro Synscan (SW = Skywatcher),Vixen Polarie tracker (portable setup)
Accessory: SW Auto-focuser
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Re: halpha sun on 10 April
sorry, I just saw the question
it's an fs60 CB with a 355mm focal length, short tube
for my full disk images, I use a glasspath x1.7 in addition which gives a resulting focal length of 365mm
I only use the focal reducer/flattener in deep sky
Sincerely
stephane
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