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Lou took this great image of a prom with his Lunt152 double stacked with a Quark

Welcome to Solar Chat! The best forum for Solar Astronomy
Moving forward from solar cycle 24 to 25

Search found 27 matches

by Boso36
Wed Oct 16, 2019 6:11 am
Forum: This is SolarChat !!
Topic: Today's Large Prominences | Oct 15th 2019
Replies: 6
Views: 80

Re: Today's Large Prominences | Oct 15th 2019

Dear Marty, Magnificent work, really detailed and flat looking solar images! I love your animation of the proms, superb! I saw your YouTube video - thanks. I have had to take notes and view your video several times. Do you still use your ASI174mm camera, it had this strange effect on the image at ce...
by Boso36
Wed Oct 16, 2019 6:04 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: ? dust inside Quark
Replies: 4
Views: 110

Re: ? dust inside Quark

Dear Mark,

Yes, i will work on my other video files which I took later on, some are .SER files, and my technique and focusing may be better. I hope they are better.
Yes, I will post my solar images soon, once I get in the right mood for going through all those files !!

Magnus
by Boso36
Wed Oct 16, 2019 6:00 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: ? dust inside Quark
Replies: 4
Views: 110

Re: ? dust inside Quark

Hi Mark! Thanks for your help ! I couldn't find a way to get the images in the post, so I included an astrobin link in the earlier posting. Anyhow, I don't know how to take the blocking filter out, as everything looks really tight in the Quark chromosphere. I did send images of the Quark to Daystarf...
by Boso36
Sat Oct 12, 2019 6:23 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: ? dust inside Quark
Replies: 4
Views: 110

? dust inside Quark

Dear Solar Chat forum, I wonder if anyone can help ? I am getting worried. I bought a Quark chromosphere filter at an astronomy show in March 2019 in the UK, for a slight discount. I noticed mainly: 1) loose compression ring in the eyepiece holder part (top of the Quark); as it would not really affe...
by Boso36
Sat Oct 12, 2019 3:12 am
Forum: This is SolarChat !!
Topic: From June 29 and 30
Replies: 10
Views: 358

Focal reducer 0.5x with Quark setupquery

Thanks, Valery I have access to the sun in the east from about 10 am and later. Even at the earliest, I would be aiming close to the tops of houses with their hot roofs. I agree with you that ideally a focal length of about 4500 mm would be ideal for the 4.5 µm pixels in the sensor. I plan to try m...
by Boso36
Fri Oct 04, 2019 10:12 pm
Forum: This is SolarChat !!
Topic: Quark Testing Round 2 (I'm getting happier)
Replies: 12
Views: 366

Re: Quark Testing Round 2 (I'm getting happier)

Thats really helpful, Starry Jack ! I have never used a negative dial position before; I thought a +3 position was optimal for proms ! Oh well, I will test this when I get the chance, but it could be in over 6 months time, as I will be away for a while out of the country and unable to use telescopic...
by Boso36
Mon Sep 30, 2019 4:19 pm
Forum: This is SolarChat !!
Topic: Prominences & Disc | HA | Sept 28th 2019
Replies: 14
Views: 205

Re: Prominences & Disc | HA | Sept 28th 2019

Thank you Marty. I bought a 0.5x focal reducer, but I think its the wrong one (fits into 1.25 inch eyepieces), Datyson 0.5x focal reducer, costing 5 gbp. I tried it but couldn't get a proper image (wrongly fits/not correct reducer). I couldn't find one for ZWO ASI120mm. I think this is a promising n...
by Boso36
Mon Sep 30, 2019 2:50 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20190928) | SM60, SM90II
Replies: 12
Views: 200

Re: Today's SUN (20190928) | SM60, SM90II

Really good work again Pedro!
Keep up the hard work!

Magnus
London
by Boso36
Mon Sep 30, 2019 1:20 pm
Forum: This is SolarChat !!
Topic: August and September Sun - longest post ever
Replies: 22
Views: 309

Re: August and September Sun - longest post ever

Thanks Alexandra. I appreciate it.

Magnus
by Boso36
Mon Sep 30, 2019 12:56 pm
Forum: This is SolarChat !!
Topic: August and September Sun - longest post ever
Replies: 22
Views: 309

Re: August and September Sun - longest post ever

Really nice story and imaging, Alexandra. I liked all your pictures, especially the milky way in France. The full disc images of the sun were fantastic! 😀 I will have to learn how to move my camera to get the various frames required, but I might get the ZWO174mm when I thinks its worth it. I get New...
by Boso36
Mon Sep 30, 2019 12:18 pm
Forum: This is SolarChat !!
Topic: August and September Sun - longest post ever
Replies: 22
Views: 309

Re: August and September Sun - longest post ever

Wow, thats a long but very interesting post. Thank you Alexandra. You are right! I bought my Quark in mid March 2919, and I have only been able to image on less than 14 days!! I try to avoid imaging on days with boiling heatwaves as my AsI120mm-S is not cooled, and I don't want skin burns!! I was wo...
by Boso36
Mon Sep 30, 2019 12:04 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Why my Quark always refused to work...
Replies: 26
Views: 1821

Re: Why my Quark always refused to work...

Thank you! I am only getting about 50-70 images stacked so far. I will keep on working on this. Thanks for your encouragement, and useful advice, I appreviate it.

Magnus
by Boso36
Mon Sep 30, 2019 10:43 am
Forum: This is SolarChat !!
Topic: Quark Testing Round 2 (I'm getting happier)
Replies: 12
Views: 366

Re: Quark Testing Round 2 (I'm getting happier)

Hi Jack. Good work and thanks for your posting. What is the meaning of -1 or +1 on your photos? I have a 70mm refractor F6 420mm focal length + Quark chromosphere, but am not getting this detail. I have not yet mastered acquisition and processing yet, though. Do you have a motorised autofocusing sys...
by Boso36
Mon Sep 30, 2019 10:35 am
Forum: This is SolarChat !!
Topic: More Practice Files
Replies: 3
Views: 178

Re: More Practice Files

Thanks Jack.
I will try these sometime.

Magnus
by Boso36
Mon Sep 30, 2019 9:30 am
Forum: This is SolarChat !!
Topic: Prominences & Disc | HA | Sept 28th 2019
Replies: 14
Views: 205

Re: Prominences & Disc | HA | Sept 28th 2019

Really contrasty and high resolution images there, Malveaux! How do you work out your resolution? arcsec per pixel? I have a 70 mm refractor + Quark chromosphere+ ASI 120mm. Should I be able theoretically to obtain reasonable images from London with this setup? (jetstream problems? and high cloud. T...
by Boso36
Sun Sep 29, 2019 10:27 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Why my Quark always refused to work...
Replies: 26
Views: 1821

Re: Why my Quark always refused to work...

Hi Krakatoa, I am a solar imager in London since March 2019. I got a Quark chromosphere at a sale in an Astronomy show! The upper compression ring on the eyepiece holder was slightly faulty. Visually, I can see decent detail though, with surface and proms seen well. I have only got round to processi...
by Boso36
Fri Jun 21, 2019 4:30 pm
Forum: This is SolarChat !!
Topic: Anybody want to share their unprocessed source AVIs
Replies: 32
Views: 1192

Re: Anybody want to share their unprocessed source AVIs

Hello Jack, I downloaded your 7 GB files of high res area of sunspot in H-alpha I think, Thanks very much ! Those files are amazing. Have you used ImPPG yet? With some care, you could get really fine images with those equipment and that 7 GB file!! I am new to solar , have only dipped into solar wit...
by Boso36
Thu Jun 13, 2019 1:08 pm
Forum: This is SolarChat !!
Topic: Anybody want to share their unprocessed source AVIs
Replies: 32
Views: 1192

Re: Anybody want to share their unprocessed source AVIs

Have you worked out the maximum size of files you can accept via dropbox? Maybe you can send an empty Memory usb stick with a SAE and postage to a trusted forum member? I still think you can practice with simple things like Lunar imaging files, so the Sun can be done later after you are more familia...
by Boso36
Thu Jun 13, 2019 12:59 pm
Forum: This is SolarChat !!
Topic: Anybody want to share their unprocessed source AVIs
Replies: 32
Views: 1192

Re: Anybody want to share their unprocessed source AVIs

Maybe this can be done via Dropbox or something. I thought .SER files are better as its 16 bit.
AVI files are only 8 bit.
by Boso36
Fri Apr 05, 2019 3:53 pm
Forum: Solar Software
Topic: Solar FLAT for FULL Disc only - cannot seem to be able to use it
Replies: 17
Views: 1225

Re: Solar FLAT for FULL Disc only - cannot seem to be able to use it

Thank you so much Marty. :P :P You've answered all my questions perfectly! How do you know that you are making the correct size "mask for your telescope" to reduce the aperture to 60mm? Is it simply the hole in the middle of your "front filter" is 60mm in diameter? What material do you use for the ...
by Boso36
Wed Apr 03, 2019 11:53 pm
Forum: Solar Software
Topic: Solar FLAT for FULL Disc only - cannot seem to be able to use it
Replies: 17
Views: 1225

Re: Solar FLAT for FULL Disc only - cannot seem to be able to use it

Thank you so much Marty. :P :P You've answered all my questions perfectly! How do you know that you are making the correct size "mask for your telescope" to reduce the aperture to 60mm? Is it simply the hole in the middle of your "front filter" is 60mm in diameter? What material do you use for the f...
by Boso36
Wed Apr 03, 2019 8:00 am
Forum: This is SolarChat !!
Topic: AR2737 & Full disc | HA | April 2nd 2019
Replies: 5
Views: 289

Re: AR2737 & Full disc | HA | April 2nd 2019

Thank you so much ! Fantastic ! I am going to try and get some practice with deconvolution and processing to see how my system matches (Quark Chromosphere/ED70 and ASI120mm-S on a slow laptap USB2.0.

Thanks!
Magnus
London
by Boso36
Wed Apr 03, 2019 7:52 am
Forum: Solar Software
Topic: Solar FLAT for FULL Disc only - cannot seem to be able to use it
Replies: 17
Views: 1225

Re: Solar FLAT for FULL Disc only - cannot seem to be able to use it

Heya, I recently was able to successfully do a full FOV disc flat without any special anything. I use a tilt adapter to first eliminate newtonian rings if present. Next, was the real workhorse, a plastic bag. Not just any plastic bag. I've tried plastic bags for years. The key is to find a plastic ...
by Boso36
Wed Apr 03, 2019 7:48 am
Forum: Solar Software
Topic: Solar FLAT for FULL Disc only - cannot seem to be able to use it
Replies: 17
Views: 1225

Re: Solar FLAT for FULL Disc only - cannot seem to be able to use it

Heya, Here's the cereal bag that I use to make flat frames for full and partial discs where the disc doesn't fully illuminate the FOV. I double up the cereal bag so it's extra diffuse. The transmission is very low due to this. But, as long as your histogram is very close to your imaging histogram, ...
by Boso36
Wed Apr 03, 2019 7:39 am
Forum: Solar Software
Topic: Solar FLAT for FULL Disc only - cannot seem to be able to use it
Replies: 17
Views: 1225

Re: Solar FLAT for FULL Disc only - cannot seem to be able to use it

Heya, I recently was able to successfully do a full FOV disc flat without any special anything. I use a tilt adapter to first eliminate newtonian rings if present. Next, was the real workhorse, a plastic bag. Not just any plastic bag. I've tried plastic bags for years. The key is to find a plastic ...