Search found 2038 matches

by gabrieli
Sun Sep 22, 2019 9:41 pm
Forum: This is SolarChat !!
Topic: Large prom frm Sept 22
Replies: 2
Views: 23

Large prom frm Sept 22

I used a Daystar ERF on an AR152 with a 4X telecentric carrying a Quark Combo for the solar image and a c9.25 for the lunar one.

Lou
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by gabrieli
Fri Sep 20, 2019 11:53 pm
Forum: This is SolarChat !!
Topic: Sun & Moon 20th Sept '19
Replies: 12
Views: 93

Re: Sun & Moon 20th Sept '19

Hi, Stu

The lunar images are great but to me the standout is the finely detailed prom.

Lou
by gabrieli
Fri Sep 20, 2019 2:30 am
Forum: This is SolarChat !!
Topic: Large Prom + High res lunar images (Sept 19)
Replies: 12
Views: 127

Re: Large Prom + High res lunar images (Sept 19)

Hi, Jack The H alpha setup included a 150mm Daystar (yellow) ERF + AR152 + 6nm Astronomik filter on a TV 2X Powermate + Quark Combo + 1.5X Barlow on the snout of a 3.2Mp Blackfly. I used the camera at 1500 x1500 pixels to increase the frame rate, increase the scale, and avoid filling the buffer. My ...
by gabrieli
Fri Sep 20, 2019 1:34 am
Forum: This is SolarChat !!
Topic: Large Prom + High res lunar images (Sept 19)
Replies: 12
Views: 127

Large Prom + High res lunar images (Sept 19)

The solar images were taken in fluttery seeing with a Daystar ERF on an AR152 with a 2X TV Powermate + 1.5X Barlow on a 3.2Mp Blackfly. The lunar images were done with a c9.25 with a 2X TV Powermate + 1.5X Barlow on a 3.2Mp Blackfly. The c9.25 has no problem picking up the small craters inside Plato...
by gabrieli
Tue Sep 10, 2019 10:51 am
Forum: This is SolarChat !!
Topic: A day late and a penny short
Replies: 7
Views: 129

Re: A day late and a penny short

Correction: The filter in question was a 685nm IR pass filter that cut below 685nm, including Ha.

Lou
by gabrieli
Tue Sep 10, 2019 1:00 am
Forum: This is SolarChat !!
Topic: H-Alpha close-ups on 6 Sep
Replies: 13
Views: 222

Re: H-Alpha close-ups on 6 Sep

Hi, Alfred

I'm glad you're finding interesting features on the disk.

Do you use your PST etalon at f/10 and then use a barlow or do you use an amplifying telecentric on the scope and then the PST etalon?

Lou
by gabrieli
Tue Sep 10, 2019 12:54 am
Forum: This is SolarChat !!
Topic: A day late and a penny short
Replies: 7
Views: 129

Re: A day late and a penny short

Thanks, Alfred, for your comment. I reached the point of almost panicking when I saw nothing but black. Then I started to check if my ERF cover was still on, to see if the solar finder was misaliged whether the secondary mirror had cracked, and whether the extension tubes had anything stored in them...
by gabrieli
Mon Sep 09, 2019 8:54 pm
Forum: This is SolarChat !!
Topic: A day late and a penny short
Replies: 7
Views: 129

A day late and a penny short

I missed last day's prom display dues to sky conditionsbut I had a chance to catch some remnants today. I used an LS152 for the images below. I started the session trying to figure out why I wasn't seeing anything using this tried and proven setup until I checked the camera nosepiece and found an IR...
by gabrieli
Mon Sep 09, 2019 1:05 am
Forum: This is SolarChat !!
Topic: 45 Minutes in the life of a Quiescent Prom - 8th September
Replies: 22
Views: 287

Re: 45 Minutes in the life of a Quiescent Prom - 8th September

Hi, Mark

The detail in the proms struck me immediately, especially noticeable as the images in the movie seem to change in sharpness quickly from moment to moment. Looks like a great scope.

Lou
by gabrieli
Mon Sep 02, 2019 12:28 am
Forum: This is SolarChat !!
Topic: Proms on Aug31
Replies: 6
Views: 125

Re: Proms on Aug31

Hi, Phil Thanks for your comments. The "smoothness" in the proms, unfortunately, is due to the relatively poor seeing conditions during this session and also the noise reduction in Astra Image. In the past, during better seeing conditons, structural details would be seen in the proms, rather than th...
by gabrieli
Sun Sep 01, 2019 10:43 pm
Forum: This is SolarChat !!
Topic: Proms on Aug31
Replies: 6
Views: 125

Proms on Aug31

These images were actually posted this morning (Sept 1) but, like a few instances before, I stopped short at "preview" and they were lost. Here they are again. There were a couple of interesting proms on Aug 31, including a tiny filaprom. Due to the seeing, I didn't try the larger setup with the c9....
by gabrieli
Fri Aug 30, 2019 9:02 pm
Forum: This is SolarChat !!
Topic: Proms from Aug 29
Replies: 2
Views: 96

Proms from Aug 29

There were quite a few proms around the disk on this day but most were very hard to see. The seeing was awful at midday with high frequency "waves" dfistorting the limb. The processing required was heavy (high medium wavelets on AstarImage + Adaptive Filternoise reduction). Most images show bands th...
by gabrieli
Tue Aug 27, 2019 11:25 am
Forum: This is SolarChat !!
Topic: A better day than yesterday (Aug 24)
Replies: 10
Views: 193

Re: A better day than yesterday (Aug 24)

Thanks, everyone. Alexandra: Although I've been using Astra Image for a couple of years now, I've only ever used its most basic features (L-R deconvolution, wavelets) until a few months ago. It also has some unique noise reduction abilities which are very necessary if there is a lot of processing in...
by gabrieli
Mon Aug 26, 2019 5:48 pm
Forum: This is SolarChat !!
Topic: Happy birthday Alexandra Hart
Replies: 15
Views: 231

Re: Happy birthday Alexandra Hart

Alexandra

Let me add my best wishes for your special day and may the coming year bring good seeing conditions when you need them.

Lou
by gabrieli
Sun Aug 25, 2019 9:50 pm
Forum: This is SolarChat !!
Topic: Prom on Aug 25
Replies: 7
Views: 161

Prom on Aug 25

The seeing in both the early and late morning was a bit worse than previous days though images were ok with more aggressive processing. In the lunar example I used a c9.25 at 4600mm and an LS152 at 3800mm for the prom. I plan to use a 0.67X reducer next day.

Lou
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by gabrieli
Sat Aug 24, 2019 10:53 pm
Forum: This is SolarChat !!
Topic: A better day than yesterday (Aug 24)
Replies: 10
Views: 193

Re: A better day than yesterday (Aug 24)

Hi, Jack The solar images from today(Aug 24) were taken with a nine year old LS152, double stacked with a Quark chromosphere. The double stacking really had little to do with getting these images as I was interested only in the proms, given the lack of activity on the disc but it does become useful ...
by gabrieli
Sat Aug 24, 2019 6:51 pm
Forum: This is SolarChat !!
Topic: A better day than yesterday (Aug 24)
Replies: 10
Views: 193

A better day than yesterday (Aug 24)

Again, I was up early for some waning last quarter moon images and did as well with them as last day. I set up my solar gear at about 10:30 am, further from my house than usual and got some better images than last day using my LS152 instead of an AR102.The camera used for all the images below was a ...
by gabrieli
Sat Aug 24, 2019 1:25 am
Forum: This is SolarChat !!
Topic: First try at today's prom (Aug 23)
Replies: 6
Views: 114

First try at today's prom (Aug 23)

After a very exciting early morning lunar session with my c9.25, I was hopimg that the seeing would carry over to the day's solar session but that turned out to be overly optimistic. I'll try again next day. For the first image, I used a 102 mm refractor with an L60F up front. 130.jpg The next image...
by gabrieli
Thu Aug 15, 2019 11:32 am
Forum: This is SolarChat !!
Topic: From August 13
Replies: 6
Views: 154

From August 13

Here are a few small but interesting features mostly along the sun's limb from August 13.
All were taken with an LS80.

Lou

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by gabrieli
Sat Aug 10, 2019 10:27 am
Forum: This is SolarChat !!
Topic: Today's SUN (20190809) | Low activity
Replies: 15
Views: 251

Re: Today's SUN (20190809) | Low activity

Hi, Pedro Yesterday was a frustrating day. I set up twice and had to put things away twice. First, due to clouds and then I was briefly rained on. Then my old CG5 mount tipped over after I set it down just inside my yard and cracked the protective plastic that covers the DEC motor. Luckily the attac...
by gabrieli
Mon Aug 05, 2019 10:45 pm
Forum: This is SolarChat !!
Topic: Around the sun's edge on August 5
Replies: 4
Views: 126

Around the sun's edge on August 5

With seeing going from bad to worse, I recorded 10 files and culled the following from the bunch.I used a setup I had used only once before with a 0.63 reducer right outside the scope. I know that this presents the telecentric with a less than ideal f/6.3 beam, it seems to work. Lou 105.jpg 388.jpg ...
by gabrieli
Mon Aug 05, 2019 10:27 pm
Forum: This is SolarChat !!
Topic: My time since mid July
Replies: 9
Views: 171

Re: My time since mid July

Hi, Brian

The first two cloudscapes are worth getting lost in.
The ruins remind me of the amazing time I had in Frnce (Paris and nearby cities) visiting historic ruins.
Thanks for posting.

Lou
by gabrieli
Mon Aug 05, 2019 10:41 am
Forum: This is SolarChat !!
Topic: 2" thread/M48 thread
Replies: 7
Views: 246

Re: 2" thread/M48 thread

Hi, Mark The 2" reducer fits the 2" extension tube perfectly but doesn't fit the M48/T2 adapter. That tells me that the 2" extension tube threads and the reducer threads are a perfect match. However, when I try to attach the reducer to the M48 threads on the m48/T2 adapter, the threads will seize af...
by gabrieli
Mon Aug 05, 2019 12:42 am
Forum: This is SolarChat !!
Topic: Tiny proms from August 4
Replies: 4
Views: 137

Tiny proms from August 4

Here's the best of a dozen images from today (August 4). It was taken with an Aries 265 mm ERF + c9.25 plus a long overhanging module at the back of the scope including a Quark Combo and an Antares 0.7X 2" reducer in front of a 3.2 Mp Blackfly S (working at 1530 x 1530 pixels). The efl was roughly t...
by gabrieli
Sun Aug 04, 2019 8:56 pm
Forum: This is SolarChat !!
Topic: Proms from July 30
Replies: 10
Views: 257

Re: Proms from July 30

Thanks for the comments, everyone. Christian: I might be ready for the big one but I hope the seeing conditions are ready for the big one also. When I start to lose hope, I have to remind myself of one of the first images I took with the C9.25 last year which justified the new instrument. http://sol...