Hi
I observed with the 90mm 600fl Triplet this morning and my two Quark Filters and two barlows.
09.45 BST Clear slight haze Still
4.2x Prom Quark 32mm Meade SP
08.30 o'Clock Arch prom looks like a dog with head to the top
08.35 Wide jet with flared top
08.40 Thin jet curved up with broad base
02.00 Little spike
02.30 Little curved down jet
02.45 Thin jet pointing up 45deg.
03.00 Seperated double jet. Kink up and then tall jet. Two faint jets up.
10.15 BST 3x Revelation ED long Barlow. 25mm Clave'
08.30 o'Clock Arch with a single feed and two double feeds. Little bump on the top. Curving down to a single feed.
More detail in the arch and blacker background.
08.35 Jet with double feed. A bar 45deg down in upward direction.
08.40 Jet with hollow top. Little spike curving up.
03.00 Bright seperated jet. Diffuse hedge going up above bar. Two church spires above the hedge. Thin jet from the top of the hedge not as tall as the spires.
05.00 Faint jet with bar on the right. Two bulbous bits.
Changed to Chrom Quark with 4.2x and 32mm Meade SP. Black background.
08.30 o'Clock Arch. Bright central feed with two dim ones either side.
Diffuse arch with dark bump
Down to single brightish feed with blob
Blob 'head' A dumpy triangle
08.35 Dual feed with the top seperated. Diffuse over.
08.40 Hint of diffuse
03.00 Dim all over. Seperated jet. (Aircraft in field)
Twin jets and jet above.
Could see surface granulation. A horizontal dark feature under 01.00
06.00 I could see a dark triangle base just off the inside edge of the Sun. Right was a shorter feed.
With prom leaning to the right over the Suns edge.
First real detail seen on the surface with the Chrom Quark but not looked a lot.
Less prom details in the Chrom. But better granulation on the surface.
Changed to the Relelation 3x barlow with the Chrom Quark.
11.10 BST 25mm Clave
Prominent 'sweet spot' in the centre. Granulation not as contrasty.
The horizontal bar under 01.00 was still visible.
08.30 o'Clock Diffuse feed. Bright spike above. Dumpy arch with bump. Arch down single feed with bright blob. Seperate head blob.
08.35 Dim jet
08.40 Very faint hint.
03.00 Faint.
03.00 Tried 32mm Meade SP for brighter image and the features were visible faintly.
Went back to the 3x and Prom Quark. Compared the 25mm Clave' and 25mm Fujiyama and detail looked similar.
Conclusion to use the 3x Revelation with the Chrom Quark with a 25mm as darker background and better detail
and
the 4.2x with the Chrom Quark with the 32mm. Any tips on getting better detail in the granulation?
Means no swapping of the Quark nose-pieces.
Cheers. Andrew.
01/09/2020 Visual Report
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01/09/2020 Visual Report
Last edited by AndiesHandyHandies on Wed Sep 02, 2020 8:38 pm, edited 1 time in total.
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Re: 01/0/2020 Visual Report
Very nice report Andrew. Very detailed.
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Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
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Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
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Re: 01/0/2020 Visual Report
Thanks for the report Andrew. Granulation is a feature in WL not Ha, so not sure what features you're referring to. To get better contrast drop the aperture on your scope - the native f6.6 is a little fast, and the faster the scope the wider the resultant bandpass of the etalon will be (with poorer contrast), I always found f7.5/f8 to be a nice figure with my Quark in terms of contrast.
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Re: 01/0/2020 Visual Report
Hi Mark,
Thanks for the tip on aperture and FNo. What aperture is best at the recommended FNo?
Is there a difference between the Prominence and Chromosphere Quarks in terms of best aperture and FNo?
I see darker dots across the Sun is what I mean.
Cheers. Andrew.
Thanks for the tip on aperture and FNo. What aperture is best at the recommended FNo?
Is there a difference between the Prominence and Chromosphere Quarks in terms of best aperture and FNo?
I see darker dots across the Sun is what I mean.
Cheers. Andrew.
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Re: 01/0/2020 Visual Report
I was going to ask whether you meant granulation (photosphere) or mottles/spicules (chromosphere). A chromosphere quark is supposed to have a darker and more contrast on the surface (lower bandpass), the prominence quark is a wider bandpass and thus brighter (more photospheric leakage) so the surface is less contrasty but the prominences are brighter.
Alexandra
Alexandra
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Re: 01/0/2020 Visual Report
Try stopping down to 75mm / 80mm.AndiesHandyHandies wrote: ↑Wed Sep 02, 2020 8:02 am Thanks for the tip on aperture and FNo. What aperture is best at the recommended FNo?
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Re: 01/0/2020 Visual Report
I can see someone confusing the mottles for granulation. Like granulation is to the photosphere the mottles is to the chromosphere. They cover practically the whole disc.Montana wrote: ↑Wed Sep 02, 2020 1:58 pm I was going to ask whether you meant granulation (photosphere) or mottles/spicules (chromosphere). A chromosphere quark is supposed to have a darker and more contrast on the surface (lower bandpass), the prominence quark is a wider bandpass and thus brighter (more photospheric leakage) so the surface is less contrasty but the prominences are brighter.
Alexandra
Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "