Today's Filaments, Prominences, AR & Discs | HA, CaK, GBand | July 2nd 2020

[MalVeauX]

Hey all,

I got a clear morning and despite all the nasty storms and dust clouds, seeing was decent for the first little bit of my day. The chain of filaments on the limb is fantastic and there are two large prominence groupings. They were bright enough to capture even in Calcium. The big chain of filaments should make for a great prominence limb by next week perhaps if they cling to the surface long enough! Also included the small pore in the dipole with the most activity showing a plage and filaments being produced in the active region in Gband with convection cells. Earth scales on the false colored images.

Colored & Alts:

B&W & Alts:

Discs Colored & Alts:

Discs B&W & Alts:

Seeing Conditions:

Equipment:

120mm F10 Refractor
Baader Red & Blue CCD-IR Block Filters (internal sub-aperture D-ERFs)
PST 1A + 10mm BF + 290MM (HA)
Lunt CaK B1200 + 290MM (CaK)
Edmund Optics 430nm + 2x Barlow + 290MM (Gband)
Solarmax 60 on ED80 + 290MM (HA Disc)
ED80 + Lunt CaK B1200 + IMX183 (CaK Disc)

Very best,

Edited July 2, 2020 by MalVeauX

[David Smith]

Wow, awesome set Marty. You certainly made the most of the break in the weather.

[MarkAR]

Fantastic set of images, well done.

[Anne S]

Excellent images. I wish I could remember what the sun looks like!

[assouptro]

Wow! 

Incredible images Marty!
I am totally in awe! 

 What camera do you use? 

Thanks for sharing 

Bryan


 

[MalVeauX]

5 hours ago, assouptro said:

 What camera do you use? 
 

Hi Bryan,

I listed the equipment above in the post, take a look at the block of text just above the last picture in the post with the telescopes. Some of it is short hand, so please let me know if any of it doesn't make sense so I can elaborate

Quote

 

Equipment:

120mm F10 Refractor
Baader Red & Blue CCD-IR Block Filters (internal sub-aperture D-ERFs)
PST 1A + 10mm BF + 290MM (HA)
Lunt CaK B1200 + 290MM (CaK)
Edmund Optics 430nm + 2x Barlow + 290MM (Gband)
Solarmax 60 on ED80 + 290MM (HA Disc)
ED80 + Lunt CaK B1200 + IMX183 (CaK Disc)

 

Very best,

[Highburymark]

Stunning images as usual Marty. What a wonderful few weeks it has been for solar activity - particularly for me the filaments curving around the limb. 

[vineyard]

Gorgeous as ever.  I've always meant to ask - how do you figure out what Earth scale would be for the particular image - is there some software that figures out the scale, or do you know it based on the magnification of the image you're taking?

Cheers

[assouptro]

15 hours ago, MalVeauX said:

Hi Bryan,

I listed the equipment above in the post, take a look at the block of text just above the last picture in the post with the telescopes. Some of it is short hand, so please let me know if any of it doesn't make sense so I can elaborate

Very best,

Thanks for the reply Marty 

I decipher your text as an asi290mm and another camera with the imx183 chip? Possibly also an asi? 
Am I close? 

Cheers 

Bryan 
 

 

[Pete Presland]

Fantastic set of images, love those Proms. The Granulation is also superb!

[MalVeauX]

On 04/07/2020 at 09:11, vineyard said:

how do you figure out what Earth scale would be for the particular image - is there some software that figures out the scale, or do you know it based on the magnification of the image you're taking?

I use a simple method of scaling a circle to the limb and matching it, then I can create a diameter in pixels. I divide that diameter by 109 to get Earth's approximate diameter relative to that scale.

On 04/07/2020 at 10:43, assouptro said:

I decipher your text as an asi290mm and another camera with the imx183 chip? Possibly also an asi? 
Am I close?

Yessir, it's an ASI290MM and ASI183MM, but brand really doesn't matter, the underlying sensors from Sony are all that matter as it describes pixel pitch, sensitivity and efficiency, several brands make the same camera(s) with the same sensor(s) but with different names. I generally just post the sensor being used as it has the most useful information implied.

Very best,

[vineyard]

2 hours ago, MalVeauX said:

I use a simple method of scaling a circle to the limb and matching it, then I can create a diameter in pixels. I divide that diameter by 109 to get Earth's approximate diameter relative to that scale.

Clever, thank you!