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High latitude sunspot

Posted: Thu Nov 08, 2018 8:02 pm
by krakatoa1883
It's raining here (since three weeks...) :( but browsing SDO images a high latitude spot is present, maybe belonging to the 25th cycle. Has anyone already imaged it ?

Re: High latitude sunspot

Posted: Thu Nov 08, 2018 8:44 pm
by ffellah
Good news, Raf. GONG shows that active region: the Mauna Loa view seems to be the best at this time, in my opinion.

Franco

Re: High latitude sunspot

Posted: Thu Nov 08, 2018 9:28 pm
by MalVeauX
All clouds for me :(

Very best,

Re: High latitude sunspot

Posted: Thu Nov 08, 2018 10:04 pm
by John
It certainly could be a new cycle 25 sunspot as the SDO Magnetogram appears to show reversed polarity compared to cycle 24.

John

Re: High latitude sunspot

Posted: Thu Nov 08, 2018 10:31 pm
by MalVeauX
The minor active region earlier this week was also high in latitude.

This makes the 4th or 5th feature that points towards cycle 25 coming up soon.

Very best,

Re: High latitude sunspot

Posted: Fri Nov 09, 2018 10:28 am
by Montana
Very interesting and exciting news. I think from now on we need to show the magnetogram image of the same time as this is the only way to identify the cycle change if the poles are reversed from Cycle 24 :hamster:

Alexandra

Re: High latitude sunspot

Posted: Fri Nov 09, 2018 10:45 am
by Montana
2018-11-08 cycle 25 possible.jpg
2018-11-08 cycle 25 possible.jpg (168.35 KiB) Viewed 582 times

Re: High latitude sunspot

Posted: Fri Nov 09, 2018 2:07 pm
by pedro
I have recorded a high latitude spot in august 2018 (20180804)

This is not the first time that a high latitude AR is recorded

raining here as well...

Re: High latitude sunspot

Posted: Fri Nov 09, 2018 4:18 pm
by krakatoa1883
I remember that spot, it was actually at even higher latitude (+36°) however as it appeared already close to the W limb the magnetic pattern was unclear, may be the N pole is preceding but I am not sure
0408L.jpg
0408L.jpg (32.14 KiB) Viewed 550 times
Thanks Alexandra for the comparison box.

Re: High latitude sunspot

Posted: Fri Nov 09, 2018 8:15 pm
by MalVeauX
It's a wee dipole. Definitely a sunspot. I was able to resolve both umbra with a 150mm aperture this afternoon between clouds, around 1:30pm Eastern Time (Florida). Still not designation number, that I'm aware of yet, but it's a sunspot I'm confident.

Image

Image

Image

Image

Full Disc showing the new sunspot and its location for comparison:

Image

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Resolution difference, 40mm vs 150mm aperture:

Image

Very best,

Re: High latitude sunspot

Posted: Sun Nov 11, 2018 6:54 am
by marktownley
It's definitely a cycle 25 spot. Take a look at the graph from Belgium, it's starting to uptick quite quickly once we get into the new year.
wolfjmms.png
wolfjmms.png (139.05 KiB) Viewed 504 times

Re: High latitude sunspot

Posted: Sun Nov 11, 2018 8:11 am
by Valery
marktownley wrote:
Sun Nov 11, 2018 6:54 am
It's definitely a cycle 25 spot. Take a look at the graph from Belgium, it's starting to uptick quite quickly once we get into the new year.

wolfjmms.png
Thanks Mark, for your note. It makes us optimistic - we will see more sun spots and active areas soon, may be for a next warm season in the nothern hemisphere.
See what kind of beauty was on the sun just a two and half months ago! And this was just before the very minimum (from now to a spring)!
I will be quite happy if the next summer we will see such beauties again.


Valery

Re: High latitude sunspot

Posted: Sun Nov 11, 2018 8:34 am
by marktownley
I think once we get into spring we will start seeing the return of the spots in the northern hemisphere again. Cycle 24 the northern hemisphere peaked a good year and half before the southern hemisphere peaked, so, would be reasonable to assume this asymmetry in the start of 25, and seeing spots in the northern hemisphere first is what would expect.
Double+Peaked+Solar+Cycle+24.jpg
Double+Peaked+Solar+Cycle+24.jpg (113.37 KiB) Viewed 498 times

Re: High latitude sunspot

Posted: Sun Nov 11, 2018 11:28 am
by Carbon60
Let's hope it really is the start of cycle 25. :)

Stu.

Re: High latitude sunspot

Posted: Sun Nov 11, 2018 2:33 pm
by krakatoa1883
Thanks, Mark, graph is very clear. I put my Wolf numbers in a graph too, the overall (N + S) double peak is apparent
Wolf.jpg
Wolf.jpg (23.56 KiB) Viewed 471 times

Re: High latitude sunspot

Posted: Mon Nov 12, 2018 12:59 am
by eroel
Raf:
A very interesting thread and info.
Regards,
Eric.