Search found 2020 matches

by gabrieli
Thu Aug 15, 2019 11:32 am
Forum: This is SolarChat !!
Topic: From August 13
Replies: 5
Views: 69

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: 141

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: 77

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: 109

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: 172

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: 91

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: 190

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...
by gabrieli
Sun Aug 04, 2019 11:23 am
Forum: This is SolarChat !!
Topic: 2" thread/M48 thread
Replies: 7
Views: 172

2" thread/M48 thread

In some current work, I'm attaching a 2 inch focal reducer to a 2 inch extension tube with a good fit. Then I attach the 2 inch extension tube to an M48(2") to T2 adapter. Finally, I attach a T2 to 1.25 inch eyepiece holder (see image). Although the M48 thread is described as being 2", the fit is no...
by gabrieli
Sun Aug 04, 2019 10:42 am
Forum: This is SolarChat !!
Topic: Images from August 3
Replies: 8
Views: 129

Re: Images from August 3

Hi, Jack

One drawback with these proms is that they are so feint that you have to boost either gain or gamma so high that unwanted "glow" is accentuated and reduces background contrast. The hazy conditions in the skies here didn't help much either.

Lou
by gabrieli
Sun Aug 04, 2019 12:17 am
Forum: This is SolarChat !!
Topic: Images from August 3
Replies: 8
Views: 129

Images from August 3

One fault using the C9.25 with a 3X or 4X telecentric is the very high efl that results (from 6900 - 9200 mm). I've been using these last few days of poor seeing to adjust the focal reducer/sensor separation using 2" extension tubes to try to get down to 4000 - 4500 mm. I'm playing with 2" (0.7X - 0...
by gabrieli
Wed Jul 31, 2019 1:53 am
Forum: This is SolarChat !!
Topic: Proms from July 30
Replies: 10
Views: 190

Proms from July 30

The skies cleared in mid afternoon but left scattered clouds. I dusted off my LS80, double stacked with an LS60 etalon for the following:
Lou
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by gabrieli
Fri Jul 26, 2019 11:01 pm
Forum: This is SolarChat !!
Topic: On the sun's limb on July 25
Replies: 8
Views: 176

Re: On the sun's limb on July 25

Hi, Andrew If I remember correctly, what you are describing sounds like the prominence in the 3rd image down which I spotted in the lower right of the sun's disk on my screen. I often reorient my images right side up no matter where they actually are on the sun. Did you take any images of that promi...
by gabrieli
Fri Jul 26, 2019 12:28 pm
Forum: This is SolarChat !!
Topic: On the sun's limb on July 25
Replies: 8
Views: 176

On the sun's limb on July 25

Here are a few more images taken with my c9.25 with a Quark Combo on a 3X telecentric with an Orion 0.8X focal reducer.

Lou
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by gabrieli
Thu Jul 25, 2019 11:04 pm
Forum: This is SolarChat !!
Topic: Proms and spicules from July 23
Replies: 7
Views: 183

Re: Proms and spicules from July 23

Hi, Brian

I hear the temperatures are scorchiing south of you, causing some real problems.

Maybe when you get back, you can post some landscapes.

Lou
by gabrieli
Thu Jul 25, 2019 1:22 am
Forum: This is SolarChat !!
Topic: Cat, dog or Horse?
Replies: 11
Views: 222

Re: Cat, dog or Horse?

Hi, Pepe

My cats insist it's a cat.

Lou
by gabrieli
Wed Jul 24, 2019 12:27 am
Forum: This is SolarChat !!
Topic: Proms and spicules from July 23
Replies: 7
Views: 183

Proms and spicules from July 23

This was a great day to continue trials with my c9.25. It was also a "first light" for an Orion 0.8X 2" focal reducer. The reducer - sensor distance to achieve 0.8X is stated as 55 mm. I used more than that due to the required "tilter" to eliminate Newton's rings. Also, 0.8X would not be too useful ...
by gabrieli
Tue Jul 23, 2019 1:37 am
Forum: This is SolarChat !!
Topic: 50mm DS 'vs' 90mm SS Full Disks - 22nd July
Replies: 12
Views: 255

Re: 50mm DS 'vs' 90mm SS Full Disks - 22nd July

Hi, Mark Your SM90 really puts out some sharp detail at higher res. I've just recently discovered where the binning option is in the FLIR Spinnaker software that runs all my Blackfly S cameras. With a high pixel count camera the gain in brightness is very noticeable while the reduced pixel count is ...
by gabrieli
Mon Jul 22, 2019 2:39 pm
Forum: This is SolarChat !!
Topic: Big Prom on July 21
Replies: 9
Views: 220

Re: Big Prom on July 21

Thanks for the comments and views.

I can't wait for more of these great proms.

Lou
by gabrieli
Sun Jul 21, 2019 8:43 pm
Forum: This is SolarChat !!
Topic: Big Prom on July 21
Replies: 9
Views: 220

Big Prom on July 21

This prom is the a development of the prom that was in the same position on the sun as last day except that it has "bloomed" outwards. Its appearance was very feint on GONG and appeared even more so in the the live view because of the haze. So, there was some levels work involved to make it more con...
by gabrieli
Sun Jul 21, 2019 10:04 am
Forum: This is SolarChat !!
Topic: Proms from July 20
Replies: 4
Views: 106

Proms from July 20

Here are a couple of images of my favourite solar subject: proms. This day was the hottest day this season and very uncomfortable but since I saw a couple of "blips" on the sun's edge on GONG I decide to put my smaller scope to use for a quick session. I used an LS80 with a 3X telecentric and Quark ...
by gabrieli
Tue Jul 16, 2019 1:07 pm
Forum: This is SolarChat !!
Topic: Filaments on July 16
Replies: 5
Views: 163

Filaments on July 16

These next images were taken during a break from "chores" around the house and yard. The conditions were difficult as usual but some interesting features are appearing.

Lou

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by gabrieli
Sat Jul 13, 2019 8:53 pm
Forum: This is SolarChat !!
Topic: Another day another first light (July 13)
Replies: 8
Views: 201

Another day another first light (July 13)

Near the end of last season, a 6nm (2") Ha filter arrived and there was no chance of trying it. A few days ago a new 4X telecentric arrived and, today (July 13), in a sky that ranged from hazy to completely overcast, I managed 6 images. As soon as the sky is more suitable, I'll try the new filter an...
by gabrieli
Wed Jul 10, 2019 11:14 pm
Forum: This is SolarChat !!
Topic: Prom image from July 10
Replies: 5
Views: 189

Prom image from July 10

When I saw a reasonably large prom on the GONG website, I decide to put off some house painting until later in the afternoon. Despite expected poor seeing, I felt this would be a good time to test a 0.63X reducer on a c9.25 with a Baader 3X telecentric. Here's the best result of several images of th...
by gabrieli
Tue Jul 02, 2019 11:15 am
Forum: This is SolarChat !!
Topic: Mostly spicules from July 1
Replies: 6
Views: 204

Re: Mostly spicules from July 1

Thanks for the comments and views, Valery, Mark, and Alexandra and viewers.

Thanks for passing on your experience, Valery.
I’d like to use f/40 but the Televue 4x Powermate is too dark. Is there a “brighter” telecentric you could recommend? Is there a preferred 0.5X reducer to use in this case?

Lou
by gabrieli
Mon Jul 01, 2019 9:33 pm
Forum: This is SolarChat !!
Topic: Mostly spicules from July 1
Replies: 6
Views: 204

Mostly spicules from July 1

The images below are from using an Aries ERF on a c9.25 + Televue2X + Quark Combo + Blackfly S(2.8 Mp). The efl was 4600mm. Ther imaging session lasted from 12:30 pm to 1:15 pm, There wasn't much happening by way of surface or edge events. Lou spicules+.jpg spicules-c.jpg 380.jpg 380-.jpg 712.jpg