Search found 2123 matches

by gabrieli
Wed Nov 11, 2020 11:39 am
Forum: This is SolarChat !!
Topic: Some results from Nov 10/20
Replies: 11
Views: 144

Some results from Nov 10/20

The mild weather continued this day with occasional fair seeing. The drawback was that trains of herringbone clouds decided to parade in front of the sun throughout the afternoon. This meant very brief recording times and frames and softer than usual images. I used a 180 mm Mak at f/30 (5400mm with ...
by gabrieli
Wed Nov 11, 2020 11:39 am
Forum: SPoD Archive
Topic: Some results from Nov 10/20
Replies: 5
Views: 47

Some results from Nov 10/20

The mild weather continued this day with occasional fair seeing. The drawback was that trains of herringbone clouds decided to parade in front of the sun throughout the afternoon. This meant very brief recording times and frames and softer than usual images. I used a 180 mm Mak at f/30 (5400mm with ...
by gabrieli
Tue Nov 10, 2020 12:15 am
Forum: This is SolarChat !!
Topic: Sunspot group on Nov. 9
Replies: 7
Views: 74

Sunspot group on Nov. 9

Although the seeing was worse than the previous day, and the sky was full of rows of clouds that only allowed recording for a few seconds at a time, there was one pocket of good seeing that produced the result below. I used a 180mm mak with a 1.5X telecentric (as a barlow) that gave about 4050 mm. L...
by gabrieli
Mon Nov 09, 2020 10:58 am
Forum: This is SolarChat !!
Topic: What a day! (Nov 8)
Replies: 10
Views: 149

Re: What a day! (Nov 8)

Thanks, everyone for viewing and/or comments.

I think using my c9.25 was slightly ambitious and that my 180 Mak would have been a better aperture for the conditions above the two 6 inch scopes. I'll try using 180 today if the weather holds and then get some cleaner images.

Lou
by gabrieli
Mon Nov 09, 2020 12:26 am
Forum: This is SolarChat !!
Topic: What a day! (Nov 8)
Replies: 10
Views: 149

What a day! (Nov 8)

Despite the seasonally low sun and low expectations, today was probably the best day of this 2020 season in my location. I started imaging with an AR 152 at 3600mm for some white light images and then switched to an LS152 for some H alpha. It was obvious from the better than usual detail that i woul...
by gabrieli
Sun Oct 25, 2020 11:41 pm
Forum: This is SolarChat !!
Topic: AR and prom from Oct 22
Replies: 5
Views: 134

Re: AR and prom from Oct 22

Thanks everyone for the comments and views. For Franco The telecentric is from APM. For me, its purpose is for use with my 180mm Mak to boost the f/ratio to 22 and, by using a mounted 135mm ERF as a stop, to f/30 without the need for a reducer. This change should improve the contrast produced by my ...
by gabrieli
Sat Oct 24, 2020 8:12 pm
Forum: This is SolarChat !!
Topic: AR and prom from Oct 22
Replies: 5
Views: 134

AR and prom from Oct 22

I used an LS152 at 3600 mm (4X telecentric) for the following 2 images 156a_filtered.jpg 826a.jpg Changes I've made to my 7" Mak I added a handle to the back tube ring. It makes a huge difference in handling the scope when carrying it or loading it onto its cradle. handle.JPG The next 2 images show ...
by gabrieli
Wed Oct 14, 2020 1:25 am
Forum: This is SolarChat !!
Topic: Sol from the 12th of October 2020.
Replies: 13
Views: 288

Re: Sol from the 12th of October 2020.

Hi, Eric

This is really nice work. The texture of this AR is so vivid it almost makes me uncomfortable.
The seeing for me here was really bad although the sky was a cloudless blue.
I'll try again next day.

Lou
by gabrieli
Mon Oct 12, 2020 11:28 am
Forum: This is SolarChat !!
Topic: Ha 11.10.2020 AR2774 + AR2775
Replies: 22
Views: 430

Re: Ha 11.10.2020 AR2774 + AR2775

Hi Josef

You have some beautiful smooth tones in your chromosphere images and nice detail in the prominences.
Did you use both the DayStar Quantum 0,6À + Lunt LS50 for the prominences or just the DayStar Quantum 0,6À ?

Lou
by gabrieli
Sun Oct 11, 2020 11:20 pm
Forum: This is SolarChat !!
Topic: AR on Friday, Oct 9
Replies: 5
Views: 132

AR on Friday, Oct 9

Although the seeing was abysmal, I used a Celestron 180 Mak in a new configuration for this session.: A full aperture ERF + 35 nm Ha on the nose of a new 2 inch 1.5X telecentric + ASI290 camera. The new telecentric avoids the use of reducers that, for me, always caused more problems than they solved...
by gabrieli
Tue Sep 29, 2020 10:39 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Advice requested on Quantum filter purchase
Replies: 42
Views: 1162

Re: Advice requested on Quantum filter purchase

Thanks for the reply, Peter.Your images are very persuasive. They show good detail, both in the proms and chromosphere.

Lou
by gabrieli
Mon Sep 28, 2020 8:09 am
Forum: This is SolarChat !!
Topic: Sol from the 9th of June 2019.
Replies: 7
Views: 833

Re: Sol from the 9th of June 2019.

Hi, Eric your prom, in the last few images, show some great detail, even if they are on a medium scale.

Lou
by gabrieli
Sun Sep 27, 2020 8:52 pm
Forum: This is SolarChat !!
Topic: A very worthwhile day (Sept 27)
Replies: 9
Views: 208

A very worthwhile day (Sept 27)

This day was worth waiting for all season long. There were very obvious very good seeing conditions that lasted for a good 20 to 30 seconds where very delicate fibrils were visible and fairly steady.There was little in way of haze and the shutter speed was fast with little gain required. All this ha...
by gabrieli
Sun Sep 27, 2020 3:34 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Advice requested on Quantum filter purchase
Replies: 42
Views: 1162

Advice requested on Quantum filter purchase

In the next month or so, I will be ordering a Quantum filter from Daystar. I’m interested in the best choice for prominence imaging (my main interest when I first started solar imaging). I know that prominences are best imaged with wider bandwidths (these provide high contrast images according to Da...
by gabrieli
Sun Sep 27, 2020 12:30 pm
Forum: This is SolarChat !!
Topic: Active region on Sept 24
Replies: 10
Views: 258

Re: Active regionon Sept 24

Thanks everyone. It was a nice surprise this morning to see my image on the "front page". I general, I like seeing other people's work because I know what I'm trying to hide with my own processing limitations and other frustrations. By the way, using an older 150mm ERF in its own cell on my 180 Mak ...
by gabrieli
Fri Sep 25, 2020 8:45 pm
Forum: This is SolarChat !!
Topic: Active region on Sept 24
Replies: 10
Views: 258

Active region on Sept 24

September seems to be a month for very hazy skies when cooler weather brings better daytime seeing. Here in my location, the solar imaging season lasts until the beginning of November, when the sun gets very low and temperature very cold. If there is a special solar event, I will image using smaller...
by gabrieli
Fri Sep 25, 2020 8:45 pm
Forum: SPoD Archive
Topic: Active regionon Sept 24
Replies: 5
Views: 124

Active regionon Sept 24

September seems to be a month for very hazy skies when cooler weather brings better daytime seeing. Here in my location, the solar imaging season lasts until the beginning of November, when the sun gets very low and temperature very cold. If there is a special solar event, I will image using smaller...
by gabrieli
Wed Sep 23, 2020 11:27 am
Forum: This is SolarChat !!
Topic: Minor surgery on my 180 Mak
Replies: 1
Views: 137

Minor surgery on my 180 Mak

I’m not sure that this is board section is the right place for this but, if not, could one of the mods reassign it? This concerns my recently acquired (this past summer) Celestron 180 Mak. In all, I really love this scope. It has a very manageable weight and has shown very good optical quality judgi...
by gabrieli
Tue Sep 22, 2020 6:24 pm
Forum: This is SolarChat !!
Topic: Features from Sept 22
Replies: 3
Views: 142

Features from Sept 22

With the cooler weather came really poor skies, either tolerable with no significant solar features or interesting features with poor seeing.
The images below were taken through hazy cloud cover.

Lou
292.jpg
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172to noise_filtered.jpg
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by gabrieli
Tue Sep 01, 2020 12:01 am
Forum: This is SolarChat !!
Topic: Proms from Aug 31
Replies: 5
Views: 172

Proms from Aug 31

Both these proms were taken using a 180 mm Mak in poor seeing. Both these proms were were pretty dim and, so, required heavier processing to extract details. A Quark Combo was used at f/15 (prime focus).

Lou
60142a_filtered.jpg
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201121a_filtered.jpg
201121a_filtered.jpg (641.05 KiB) Viewed 172 times
by gabrieli
Mon Aug 31, 2020 12:15 pm
Forum: This is SolarChat !!
Topic: Mostly proms from Aug 30
Replies: 5
Views: 148

Mostly proms from Aug 30

There were quite a few proms on the limb today but some were barely visible. One such prom made a very nice composition with a nearby filament. Lou The following 3 images were taken using a single stacked LS152. ghost.jpg 422.jpg 114b.jpg The next image was taken with a 180 mm Mak 75(7).jpg
by gabrieli
Tue Aug 25, 2020 8:35 pm
Forum: This is SolarChat !!
Topic: Highlights from Aug 25
Replies: 5
Views: 163

Highlights from Aug 25

It was a very blustery, windy day, today. Many files had frames that were so far out of place that stacking was difficult. I'm posting these hoping that someone had better luck with their imaging. The images include an odd arcing extension from a shorter prom. Lou prom.jpg hedge.jpg pillar.jpg feint...
by gabrieli
Tue Aug 25, 2020 8:35 pm
Forum: SPoD Archive
Topic: Highlights from Aug 25
Replies: 3
Views: 118

Highlights from Aug 25

It was a very blustery, windy day, today. Many files had frames that were so far out of place that stacking was difficult. I'm posting these hoping that someone had better luck with their imaging. The images include an odd arcing extension from a shorter prom. Lou prom.jpg hedge.jpg pillar.jpg feint...
by gabrieli
Sun Aug 16, 2020 1:09 am
Forum: This is SolarChat !!
Topic: Departing AR2770 on Aug 15
Replies: 3
Views: 183

Departing AR2770 on Aug 15

An oppressively hot day with a short recording session. I didn't see any notable proms during my session although I see that others managed to image one. The one noteworthy event was AR2770 about to round the bend and a curious butterfly shaped AR. I used an LS152 here .
AR2770.jpg
AR2770.jpg (1.1 MiB) Viewed 183 times
202.jpg
202.jpg (1.5 MiB) Viewed 183 times
by gabrieli
Sat Aug 15, 2020 10:42 am
Forum: This is SolarChat !!
Topic: CAK and HA images with ARIES D-ERF + C11
Replies: 35
Views: 1032

Re: CAK and HA images with ARIES D-ERF + C11

Hi, Alfred

I'm so impressed with the Ha images, especially since they came from a large aperture. Congratulations.

Lou