SolarChat!

Dave S

Starry Jack, I use Calsky

Dave S

Not the Sun, but I used the same setup that I use for the Sun (sans H-a filter) to catch the ISS transiting the crescent moon. It wasn't far from the Sun.

6" refractor
Basler Ace
no barlow

Dave S

Lovely!

Dave S

April 11, 2280mm focal length. Getting it while it lasts:

Dave S · Re: Proms and spot April 9, 2019 Awesome images, Phil!

Awesome images, Phil!

Dave S

It feels very fortunate to get a nice new active region today! Here is AR12731 and a prominence.

: AR12738_Sun_122045-1200px.jpg (462.97 KiB) Viewed 762 times

: NE_Prom_Sun_121523.jpg (423.42 KiB) Viewed 762 times

Dave S · Re: PST on February 20, 2019 That is really nice! Good job with the PST.

That is really nice! Good job with the PST.

Dave S

Keep an eye out for tadpoles! Scientists have discovered tadpole-shaped jets coming out of regions with intense magnetic fields on the Sun. Unlike those living on Earth, these “tadpoles” — formally called pseudo-shocks — are made entirely of plasma, the electrically conducting material made of charg...

Dave S

We're just getting a few hours of Sun between rainstorms here in California. I captured the filament and a very dim prominence in the morning before the showers came in.

: Sun_Filament_094305.jpg (1.06 MiB) Viewed 1201 times

: Sun_SE_prom_094911.jpg (198.28 KiB) Viewed 1201 times

Dave S

Wow! Amazing high resolution prom waterfalls. Bravo!

Dave S

Thanks for your comments, everyone. It's nice to get anything at all to photograph these days.

Dave S

Awesome animation, Paul!

Dave S

Awesome animation, Paul!

Dave S

I wasn't sure it was worth it to set up for these dim proms at first, but with some exposure tweaking they looked pretty nice.

: AR_Sun_103217.jpg (769.79 KiB) Viewed 1671 times

: SW_Prom_Sun_104423.jpg (205.72 KiB) Viewed 1671 times

: NE_Prom_Sun_104800.jpg (188.94 KiB) Viewed 1671 times

Dave S

I woke up this morning planning to take some shots of the active region on the solar limn, but when I looked out at my canvas-covered scope there was a Cooper's Hawk using it as a perch. The sky is cloudy so he got to keep his perch for now. CoopersHawkTelescopePerch_DSCN4679.jpg CoopersHawkTelescop...

Dave S

Well it is nice to see something happening on the Sun to photograph today! The little AR has three spots and a couple of interesting small proms. Here's what I got:

: AR12727_Sun_131430.jpg (744.29 KiB) Viewed 1013 times

: SW_Prom_Sun_130315.jpg (188.73 KiB) Viewed 1013 times

: SE_Prom_Sun_130017.jpg (201.98 KiB) Viewed 1013 times

Dave S

TheSkyBurner wrote: ↑Thu Nov 08, 2018 1:28 pm my initials are APL

I worked at APL when I was a young engineer. There was always something wonderful happening there.

Dave S

Beautiful little proms, Marty. Size isn't everything!

Dave S

These proms were large but faint so I had to crank up the gain and exposure to get them to show decently.

: Sun_103420_FullDiskColor.jpg (682.94 KiB) Viewed 872 times

: Sun_095559_NWPromColor.jpg (109.83 KiB) Viewed 872 times

: Sun_094625_SEPromColor.jpg (223.28 KiB) Viewed 872 times

Dave S

Very nice images, Marty! The big proms were pretty faint and you did a great job capturing them.

Dave S

Great catch! That's pretty rare.

Catching the transit in H-a would be awesome, but the exposures are longer and the motion might blur.

Dave S

Great catch! That's pretty rare.

Catching the transit in H-a would be awesome, but the exposures are longer and the motion might blur.

Dave S

Grabbed some proms in iffy seeing

: Sun_094317_NE_Prom.jpg (1.17 MiB) Viewed 1243 times

: SW-_Sun_094241.jpg (384.01 KiB) Viewed 1243 times

: SE-_Sun_090358.jpg (267.47 KiB) Viewed 1243 times

Dave S

Beautiful images!

Dave S

Nice set, Marty! And great action capture in the animation!

Dave S

Nice work!

Dave S

Those are stunning shots!

Dave S

Wow! Very impressive detail and contrast

Dave S

Wow! Very impressive detail and contrast

Dave S

added in the surface layer:

: Sun_100916_SE_Prom-surfaced.jpg (413.32 KiB) Viewed 1270 times

Another small prom group:

: Sun_094840_E_Prom.jpg (216.01 KiB) Viewed 1270 times

Dave S

Quick process of this nice prom with a curling peak. Roughly 50,000 miles high. More later when I get some time:

: Sun_100916_SE_Prom.jpg (177.45 KiB) Viewed 1297 times

Dave S

Wonderful prom photos, Marty!

Dave S

That is a really cool sequence! The arch opens up and the tongue of plasma flicks through. Nice.

Dave S

That is a really cool sequence! The arch opens up and the tongue of plasma flicks through. Nice.

Dave S

And the answer is child porn: The source of child pornography was traced to an IP address used at the observatory and a source within the building observed a computer with "not good" images on it, the warrant states. An investigation by the FBI revealed that a janitor is the main suspect i...

Dave S

A friend saw my solar photos and asked me if he could use his iPhone with settings to do the same thing.
Yeah, he asked that.
So I created this instructional video for him:
https://youtu.be/sDDUepzr9pU

Dave S

However, why is the detail so fine in the animation but not replicated in the single image? I think you need to pick your sharpest frame. Thanks for pointing that out, Alexandra. I'm looking into that, which is a helpful exercise. There were a lot of differences, including different capture time, t...

Dave S

Still image:

: Sun_Hedrow-HDR_100833.jpg (326.35 KiB) Viewed 2171 times

Dave S

From data I took on 13 September at 2280mm focal length. 6" refractor

: Prom-Animation.gif (26.11 MiB) Viewed 2181 times

http://www.pbase.com/dsnope/image/168129689/original

Dave S

Looks like it is because of a geomagnetic storm:

https://www.swpc.noaa.gov/news/g2-moder ... ued-11-sep

Dave S

Greg photos, Pepe! I love the altitude reference curves

Dave S

I have no idea what kind of security issue would require shut down of a solar observatory and post office. It'll probably all makes sense some day. SUNSPOT, New Mexico - The National Solar Observatory in Sunspot New Mexico has been closed since last Thursday. The post office near Sunspot also remain...

Dave S

Very fine pictures, Gabrieli. You make the hot Sun look cool ;-)

Dave S

Great first shots, and an impressive imaging train! I can't wait to see more of your work.

I agree with Valery, reducing the exposure should yield more detail.

Dave S

Small spots and small proms today.

I took pics at 2200 and 3300mm focal lengths and liked the 2200mm the best:

: AR12713_Sun_092526_2XP3.jpg (870.04 KiB) Viewed 1152 times

: NE_Prom_Sun_091513_P32X.jpg (180.29 KiB) Viewed 1152 times

: AR12714_Sun_091831_P32X.jpg (530.18 KiB) Viewed 1150 times

Dave S · Re: Solar surface activity at high res June 19 2018 280mm aperture. Impressive!

Impressive!

Dave S

Really amazing images!

Dave S

Active Region AR12712. Finally a sunny day! I was able to get some pretty good resolution on the Sun today and caught this sunspot region before it rotates off into the, errr, sunset. 2280mm focal length, 160mm refractor, LS80DSii module, Basler Ace http://a4.pbase.com/o10/77/857277/1/167579494.A9k7...

Dave S

I had some passable seeing and clear sky today so it was a good chance to catch AR12706 in the full frontal position.

160mm refractor, DS2 etalon, Basler IMX252

: AR12706_Mono_Sun_094245.jpg (463.77 KiB) Viewed 1080 times

: AR12706_Sun_094245.jpg (708.82 KiB) Viewed 1080 times

: SW_Prom_Sun_102432.jpg (127.9 KiB) Viewed 1080 times

: SE_Prom_Sun_102144.jpg (107.64 KiB) Viewed 1080 times

Dave S

Wonderful high-res images!

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