Search found 853 matches

by MalVeauX
Sat May 25, 2019 4:50 pm
Forum: This is SolarChat !!
Topic: Prominences & Little Plage | HA | May 25th 2019
Replies: 0
Views: 18

Prominences & Little Plage | HA | May 25th 2019

Heya, Low activity, but a little more than the past few days at least. There's a little plage that formed the other day and is still persistent with some tiny filaments around it and spicule bundles here and there. Some fair prominences are near by on the limb that have lasted the night so far. Seei...
by MalVeauX
Wed May 22, 2019 1:18 am
Forum: Solar Scope Modifications
Topic: DIY Solar Wedge ND3.0 alternatives for Imaging only
Replies: 4
Views: 47

Re: DIY Solar Wedge ND3.0 alternatives for Imaging only

Heya, All good, you mentioned this is for imaging only right? A UV/IR block filter and a KG3 with any sort of colored dielectrically coated imaging filter would effectively mitigate any serious heat issues and allow upwards of a 150mm refractor's aperture without any problems with the camera sensor....
by MalVeauX
Tue May 21, 2019 10:08 pm
Forum: This is SolarChat !!
Topic: Weird tendril-like features in chromosphere? Identification help?
Replies: 4
Views: 93

Weird tendril-like features in chromosphere? Identification help?

Hey all, Bald disc today, not even a prom! But, there's always something to see in hydrogen alpha. I'm curious what these strange tendril like structures are in the chromosphere. I find them sometimes and they are very short lived and move along. Makes me think they are related to spicules with how ...
by MalVeauX
Tue May 21, 2019 9:54 pm
Forum: Solar Scope Modifications
Topic: DIY Solar Wedge ND3.0 alternatives for Imaging only
Replies: 4
Views: 47

Re: DIY Solar Wedge ND3.0 alternatives for Imaging only

Heya, Is this strictly for refractors? What aperture range do you want to have on it? You really do not have to make a Herschel wedge for imaging only. Wedges kill transmission, which is ideal for visual use, but for imaging, you don't have to do that. You just have to have transmission low enough t...
by MalVeauX
Tue May 21, 2019 9:19 pm
Forum: Solar Scope Modifications
Topic: 150 mm Solar Newton
Replies: 50
Views: 1420

Re: 150 mm Solar Newton

Hah, that works Bart! Are you doing that as an alternative to dealuminizing the primary? Very best, Hi Marty, yes that is correct. Exposure time has to be shorter than I am able to reach wit the de-aluminised version. Christian calculated that this would be the case, but off course I had to try it ...
by MalVeauX
Tue May 21, 2019 7:52 pm
Forum: Solar Scope Modifications
Topic: 150 mm Solar Newton
Replies: 50
Views: 1420

Re: 150 mm Solar Newton

Hah, that works Bart!

Are you doing that as an alternative to dealuminizing the primary?

Very best,
by MalVeauX
Mon May 20, 2019 7:32 pm
Forum: This is SolarChat !!
Topic: Large Prom this Morning | HA | May 20th 2019
Replies: 5
Views: 59

Large Prom this Morning | HA | May 20th 2019

Heya, We are back to a `minimum' disc, but there was at least a good sized prominence this morning that has mostly gone away since then. https://live.staticflickr.com/65535/47101708794_a2e12fe09e_c.jpg https://live.staticflickr.com/65535/47101706094_b20fc77f24_c.jpg https://live.staticflickr.com/655...
by MalVeauX
Wed May 15, 2019 8:40 pm
Forum: Solar Scope Modifications
Topic: Creative Solutions to the Problem of LARGE (8"+) ERF Cells
Replies: 3
Views: 126

Re: Creative Solutions to the Problem of LARGE (8"+) ERF Cells

Hrm, I wonder if it would truly hold a 2.5kb or heavier piece of large glass, safely though? I defnitely wracked my mind around the idea of just mounting my D-ERF in a premade filter holder, or sandwitching it between cardboard and sealing that, or making it from plywood blocks and cork board. I thi...
by MalVeauX
Wed May 15, 2019 8:36 pm
Forum: This is SolarChat !!
Topic: Sunday sunshine 12th May
Replies: 10
Views: 144

Re: Sunday sunshine 12th May

Lovely captures and great resolution!

Very best,
by MalVeauX
Wed May 15, 2019 8:36 pm
Forum: This is SolarChat !!
Topic: Tuesday 14th May in WL & Ca-K
Replies: 7
Views: 93

Re: Tuesday 14th May in WL & Ca-K

Lovely captures! Love the tri-bridge.

Very best,
by MalVeauX
Wed May 15, 2019 8:26 pm
Forum: This is SolarChat !!
Topic: Wednesday Before Work - 15th May
Replies: 9
Views: 140

Re: Wednesday Before Work - 15th May

Lovely discs Mark!

Very best,
by MalVeauX
Wed May 15, 2019 7:39 pm
Forum: This is SolarChat !!
Topic: AR2741 High Res, Proms | HA, WL, CaK | May 15th 2019
Replies: 7
Views: 125

AR2741 High Res, Proms | HA, WL, CaK | May 15th 2019

Heya, This morning was much improved for weather, best I've had in a week or more easily. The seeing was not superb, but it was pretty good. I was able to image at a few scales and in a few wavelengths without too much trouble from clouds. Seeing allowed some larger scales, but not the full resoluti...
by MalVeauX
Wed May 15, 2019 7:16 pm
Forum: This is SolarChat !!
Topic: May 15 H alpha and May 10 CaK
Replies: 11
Views: 197

Re: May 15 H alpha and May 10 CaK

Super nice Peter!

Very best,
by MalVeauX
Wed May 15, 2019 3:11 pm
Forum: This is SolarChat !!
Topic: AR2741 2019/5/15
Replies: 5
Views: 89

Re: AR2741 2019/5/15

Lovely capture Pepe!

Very best,
by MalVeauX
Tue May 14, 2019 9:38 pm
Forum: This is SolarChat !!
Topic: AR2741 & AR2740, Large Prominence | HA & CaK | May 14th 2019
Replies: 5
Views: 94

AR2741 & AR2740, Large Prominence | HA & CaK | May 14th 2019

Heya, I had a strange day, where I went to work this morning for a little bit fully expecting bad weather per the report. On the way back home, it was suspiciously clear out. I carried on, ran some errands, etc, and it was still suspiciously clear. I just knew, the moment I even thought about taking...
by MalVeauX
Tue May 14, 2019 6:50 pm
Forum: This is SolarChat !!
Topic: Always to see something ...
Replies: 9
Views: 125

Re: Always to see something ...

Ethereal and lovely Maurits!

Very best,
by MalVeauX
Tue May 14, 2019 6:50 pm
Forum: This is SolarChat !!
Topic: 13 May with Omega Ha
Replies: 7
Views: 136

Re: 13 May with Omega Ha

Hrm,

I'm genuinely curious the bandwidth of that filter(s). If it's around 1A it could be a very interesting option as the 2nd filter after an etalon....

Very best,
by MalVeauX
Tue May 14, 2019 1:26 pm
Forum: This is SolarChat !!
Topic: IMX 183M for Ca and WL imaging?
Replies: 1
Views: 66

Re: IMX 183M for Ca and WL imaging?

Heya, All my recent CaK full discs were done with an IMX178 sensor. No problems. The guys at ZWO have admitted there's issues with 178/183 with respect to sub-angstrom HA and a grid showing up. Some people see it in their images. Some don't. The 290 sensors are another option if you want to avoid an...
by MalVeauX
Tue May 14, 2019 1:24 pm
Forum: This is SolarChat !!
Topic: AR2741 with 250mm RCT
Replies: 14
Views: 244

Re: AR2741 with 250mm RCT

Looks good Stu!

Very best,
by MalVeauX
Mon May 13, 2019 7:47 pm
Forum: This is SolarChat !!
Topic: Sunday Sunshine 12th May
Replies: 13
Views: 140

Re: Sunday Sunshine 12th May

Great captures Mark!

Very best,
by MalVeauX
Mon May 13, 2019 6:52 pm
Forum: This is SolarChat !!
Topic: Slim pickings 13/5/2017 Tal/PST mod
Replies: 8
Views: 126

Re: Slim pickings 13/5/2017 Tal/PST mod

Fantastic David!

Very best,
by MalVeauX
Mon May 13, 2019 12:39 am
Forum: This is SolarChat !!
Topic: May 12th Spots and Proms
Replies: 7
Views: 98

Re: May 12th Spots and Proms

Super captures Phil!

I had zero sky visibility all day, mostly rain, total overcast.... just 4 hours North! :(

Very best,
by MalVeauX
Mon May 13, 2019 12:02 am
Forum: This is SolarChat !!
Topic: AR2741 HR & Wide Field, Full Disc | WL, HA, CaK | May 11th 2018
Replies: 14
Views: 197

Re: AR2741 HR & Wide Field, Full Disc | WL, HA, CaK | May 11th 2018

Well, I must say that you give the definition of "aperture fever" a whole new meaning. (-; Interesting approach, a battle between a normal Newton with a D-Erf and a Newton with a special coating like The T250 Solar Newton presented here. The coatings were done by MCM Optique in France. The coated N...
by MalVeauX
Sun May 12, 2019 7:18 pm
Forum: This is SolarChat !!
Topic: AR2740 in white light, 12052019
Replies: 8
Views: 116

Re: AR2740 in white light, 12052019

Very nice resolution Bart!

Very best,