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AR2735 & AR2736, Full Disc | HA & WL | March 22nd 2019

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#1 MalVeauX

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Posted 22 March 2019 - 02:10 PM

Heya,

 

I was blessed with some lovely clear skies today, it's been 9 days since I last saw the sky with the overcast cloudy stormy mess that Florida seems to like to be these days. The seeing was not great, but it was adequate to at least attempt to use larger scales with and I managed to get a little bit of data on the notable features today, namely, the two active regions and the wonderful flaring sunspot in AR2736 that has evolved significantly since it showed up. I'm very much looking forward to seeing it round the limb and hopefully it remains active and grows a bit as it rounds the limb to see some really cool activity there since it has so many little poles and keeps flaring a bit. There's a few nice prominence fields and a rather large one on the limb. I was able to finally do a little white light imaging too, just in time for such a sunspot.

 

The large HA presentation of AR2735 & AR2736 is a 3 panel mosaic. The full disc was created with 2 panels stitched together.

 

B&W:

 

47389948622_2c71c46f8a_c.jpg

 

47442776801_a7abdbc086_c.jpg

 

46719830744_72a58de4f5_c.jpg

 

46527558455_9484d1cef0_c.jpg

 

33566816118_7c818114ed_c.jpg

 

Colored:

 

33566818498_fec2a12c7a_c.jpg

 

33566817588_1038370245_c.jpg

 

40476995653_8ef7edbf32_c.jpg

 

32501057427_abd7e09c7c_c.jpg

 

33566814898_e96bf1f8b1_c.jpg

 

Continued...

 

Very best,


Edited by MalVeauX, 22 March 2019 - 02:12 PM.

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#2 MalVeauX

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Posted 22 March 2019 - 02:11 PM

AR2736 Portrait:

 

46720585414_b89b026813_c.jpg

 

47390814312_3ae4835bcf_c.jpg

 

Earth Scale & Comparison:

 

47390133922_19a297b4d3_c.jpg

 

47390133812_979be15aab_c.jpg

 

47390133722_59b0ef50e5_c.jpg

 

Equipment:

 

Large Scale:
C8 Edge HD + Aires 200mm Tri-band D-ERF + Baader 2" UV/IR Block Filter
Daystar Quark Chromosphere
ASI174MM + 0.5x Focal Reducer

 

Full disc:
ST80 (Masked to 60mm) + Baader 2" UV/IR Block Filter
Daystar Quark Chromosphere
ASI174MM + 0.5x Focal Reducer

 

Solarsetup_03222019_02.jpg

 

Solarsetup_03222019_05.jpg

 

Very best,


Edited by MalVeauX, 22 March 2019 - 02:42 PM.

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#3 rigel123

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Posted 22 March 2019 - 02:12 PM

Great shots Marty!  


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#4 mikerepp

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Posted 22 March 2019 - 02:53 PM

Your the man or I should say the Solar man!   Awesome shots!


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#5 Astroman007

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Posted 22 March 2019 - 02:56 PM

Great shots Marty!  

Seconded...and I love your equipment setup!


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#6 philipdehazya

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Posted 22 March 2019 - 04:02 PM

These are amazing photographs. A question: how are these sunspots identified? I.e, how do you know which ones you are looking at? Is there some code or something to identify these? Thanks-Phil


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#7 MalVeauX

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Posted 22 March 2019 - 04:23 PM

A question: how are these sunspots identified? I.e, how do you know which ones you are looking at? Is there some code or something to identify these?

I believe the NOAA designates them officially.

 

Here's some resources:

 

https://www.swpc.noaa.gov/

http://solarham.net/

https://sohowww.nasc...a.gov/sunspots/

https://solarmonitor.org/

https://gong.nso.edu/

 

Very best,



#8 44ye

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Posted 22 March 2019 - 04:32 PM

Great pic.s as always Marty.

 

Is the first picture with the Earth to scale a colorized white light ?

 

Once you have done the work to scale the Earth does changing the R.O.I.  change the scale also ?

As always THANK YOU FOR YOUR HELP AND POSTS

 

Don


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#9 MalVeauX

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Posted 22 March 2019 - 04:57 PM

Is the first picture with the Earth to scale a colorized white light ?

 

Once you have done the work to scale the Earth does changing the R.O.I.  change the scale also ?

As always THANK YOU FOR YOUR HELP AND POSTS

 

Don

Hi Don, Thanks!

 

Yessir, the first Earth Scale image is merely colored white light (610nm long pass filter + Baader ND 1.8 filter with a 2x barlow to be specific). The seeing was not great by the time I got to white light so I had to use a longer wavelength to be able to get much which lowered the angular resolution a bit, hence the use of the red wavelengths. If seeing was great, I would have attempted it at 395nm probably, but the seeing didn't support that.

 

I'm not sure I follow what you mean by the "changing the R.O.I change the scale" ? I generally simply figure out the scale of Earth's diameter to my large scale's diameter and then scale it based on the Sun being 109 Earth diameters, so I can then scale it down and it will approximately represent that scale to match it.

 

Very best,



#10 sushi1128

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Posted 22 March 2019 - 05:13 PM

nice and crisp images ! Marty


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#11 hopskipson

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Posted 22 March 2019 - 06:03 PM

Great set!


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#12 RickV

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Posted 22 March 2019 - 06:07 PM

All pretty fair images Marty.  Welcome Back to the Sun!  lol.gif

 

Best,

Rick


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#13 Spikey131

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Posted 22 March 2019 - 09:19 PM

I really like those high magnification "portrait" images.

 

So sharp and clear.


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#14 GUS.K

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Posted 23 March 2019 - 03:39 AM

Those are some awesome captures Marty. I finally got to see it today,we've had a couple of weeks of bad weather.
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#15 MalVeauX

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Posted 23 March 2019 - 10:08 AM

Thank you all, bow.gif

 

AR2736 is nearing the limb right now, with some fair little proms around it. I'm hoping the activity will sizzle a bit more closer to this evening as it kisses the limb and maybe we will see some interesting small filaproms!

 

Very best,



#16 MAURITS

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Posted 23 March 2019 - 04:07 PM

Great Marty.


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