Second Rotation for Active Region - AR12713 - 15th July

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marktownley
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Second Rotation for Active Region - AR12713 - 15th July

Post by marktownley »

Currently spotless and un-named as an active region, this bipolar patch of plage on the suns disk is the remains of active region which was heading towards the western limb of the sun on the 21st June. Then it had a number of sunspots and dark filaments associated with it, whereas now it is much quieter and calmer. It may well see a third rotation, but by then is likely nothing but a small patch of plage visible in Calcium wavelengths. Taken with a Lunt50 etalon, Daystar Quark and an IMX249 chipped PGR camera.

Imageunnanmed-active-region-bw by Mark Townley, on Flickr

Imageunnanmed-active-region-colour by Mark Townley, on Flickr

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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by marios i. »

Thank you Mark. Very nice images!

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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by eroel »

Mark:
Thanks for sharing your work.
Best wishes,
Eric.


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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by marktownley »

Thanks guys!

And the full disk, a mosaic. Lots of little white fluffy clouds floating around meant while seeing had some ups and downs I had to be quick to get the data needed.

ImageHa-Full-Disk-DS-bw by Mark Townley, on Flickr

ImageHa-Full-Disk-DS-colour by Mark Townley, on Flickr

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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by Valery »

marktownley wrote: Sun Jul 15, 2018 1:23 pm Currently spotless and un-named as an active region, this bipolar patch of plage on the suns disk is the remains of active region which was heading towards the western limb of the sun on the 21st June. Then it had a number of sunspots and dark filaments associated with it, whereas now it is much quieter and calmer. It may well see a third rotation, but by then is likely nothing but a small patch of plage visible in Calcium wavelengths. Taken with a Lunt50 etalon, Daystar Quark and an IMX249 chipped PGR camera.


Mark

Mark,

Today I have imaged one or two small spots in this group. I will try to process the movies and put the final images here. I definitely saw it (them) on the screen. With unheated etalon and may be with some starting heating.


Valery


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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by Carbon60 »

Nice images, Mark. It's a nice persistent patch.

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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by MapleRidge »

Superb full disk images Mark...well done :bow

I was wondering which AR this region was in the previous rotation.

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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by marktownley »

Thanks everyone! looks like the field strength popped above 1500 Gauss Valery.


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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by mattwastell »

Hi Mark - the pics came out really well - we still have some things to see - it reminds me of when I got into Solar in 2007.


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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by Valery »

marktownley wrote: Mon Jul 16, 2018 5:00 am Thanks everyone! looks like the field strength popped above 1500 Gauss Valery.
Here is the photo in the red continuum (far blue wing of the H-a) with 0,5A bandwidth. The seeing was poor. So, details are poorly seen.


Valery
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07h-18m-0,5x-reducer-1000fr.jpg
07h-18m-0,5x-reducer-1000fr.jpg (334.47 KiB) Viewed 1586 times


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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by marktownley »

Looks dotty to me! Thanks Valery!


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Re: Second Rotation for Active Region - AR12713 - 15th July

Post by Montana »

Great imaging guys :bow just shows the old dog ain't dead yet :hamster:
Alexandra


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