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swc.nict.go.jp/en/trend/sunspot.html
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Can you count the number of sunpots in the attached image of solar disc ?...
A
a a
Guest
On Thursday, 3 November 2022 at 18:45:51 UTC+1, a a wrote:
> swc.nict.go.jp/en/trend/sunspot.html
https://swc.nict.go.jp/data/latest/sdo/latest_512_HMIIF.mp4
> swc.nict.go.jp/en/trend/sunspot.html
https://swc.nict.go.jp/data/latest/sdo/latest_512_HMIIF.mp4
A
a a
Guest
On Thursday, 3 November 2022 at 18:50:26 UTC+1, a a wrote:
from spaceweather.com
2M labeled sunspots image
spaceweather.com/images2022/03nov22/hmi1898.gif
4M no labels sunspots image
spaceweather.com/images2022/03nov22/hmi4096_blank.jpg
Sunspot number: 65
4M is clear, sharp Sunspot number: 65 ???
3135 label - 2 sunspots/ groups
3136 label - 2 sunspots/ groups
R = K (10g + s) = 65 ?
what is a number of groups in the image ?
Relative sunspot number stays for what ?
I am interested to count raw number of sunspots, raw number of sunspot groups for the given image resolution.
On Thursday, 3 November 2022 at 18:45:51 UTC+1, a a wrote:
swc.nict.go.jp/en/trend/sunspot.html
https://swc.nict.go.jp/data/latest/sdo/latest_512_HMIIF.mp4
from spaceweather.com
2M labeled sunspots image
spaceweather.com/images2022/03nov22/hmi1898.gif
4M no labels sunspots image
spaceweather.com/images2022/03nov22/hmi4096_blank.jpg
Sunspot number: 65
4M is clear, sharp Sunspot number: 65 ???
3135 label - 2 sunspots/ groups
3136 label - 2 sunspots/ groups
R = K (10g + s) = 65 ?
what is a number of groups in the image ?
Relative sunspot number stays for what ?
I am interested to count raw number of sunspots, raw number of sunspot groups for the given image resolution.
A
a a
Guest
On Thursday, 3 November 2022 at 18:50:26 UTC+1, a a wrote:
https://astronomy.stackexchange.com/questions/50939/how-a-sunspot-number-is-calculated-by-an-individual-observer?noredirect=1#comment113760_50939
to learn more about sunspots, sunspot groups
On Thursday, 3 November 2022 at 18:45:51 UTC+1, a a wrote:
swc.nict.go.jp/en/trend/sunspot.html
https://swc.nict.go.jp/data/latest/sdo/latest_512_HMIIF.mp4
read
https://astronomy.stackexchange.com/questions/50939/how-a-sunspot-number-is-calculated-by-an-individual-observer?noredirect=1#comment113760_50939
to learn more about sunspots, sunspot groups
R
Ricky
Guest
On Thursday, November 3, 2022 at 1:45:51 PM UTC-4, a a wrote:
> swc.nict.go.jp/en/trend/sunspot.html
GAAAAH! MY EYES!!! SO BRIGHT!!!!!
> swc.nict.go.jp/en/trend/sunspot.html
GAAAAH! MY EYES!!! SO BRIGHT!!!!!
A
a a
Guest
On Friday, 4 November 2022 at 18:44:41 UTC+1, Ricky wrote:
give a next try
-2M labeled sunspots image
spaceweather.com/images2022/03nov22/hmi1898.gif
-4M no label sunspots image
spaceweather.com/images2022/03nov22/hmi4096_blank.jpg
Sunspot number: 65 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ???????
thank youOn Thursday, November 3, 2022 at 1:45:51 PM UTC-4, a a wrote:
swc.nict.go.jp/en/trend/sunspot.html
GAAAAH! MY EYES!!! SO BRIGHT!!!!!
give a next try
-2M labeled sunspots image
spaceweather.com/images2022/03nov22/hmi1898.gif
-4M no label sunspots image
spaceweather.com/images2022/03nov22/hmi4096_blank.jpg
Sunspot number: 65 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ???????
J
John S
Guest
On 11/4/2022 1:44 PM, Ricky wrote:
Yes.
On Thursday, November 3, 2022 at 1:45:51 PM UTC-4, a a wrote:
swc.nict.go.jp/en/trend/sunspot.html
Yes.
A
Anthony Stewart
Guest
I do not know how they quantize a sunspot versus a hot photon emission.
A
a a
Guest
On Saturday, 5 November 2022 at 23:56:15 UTC+1, Anthony Stewart wrote:
> I do not know how they quantize a sunspot versus a hot photon emission.
Anthony,
latest solar image video from Japan.
I have counted 4 sunspots ( black spots) for the given resolution of this video
https://swc.nict.go.jp/data/latest/sdo/latest_512_HMIIF.mp4
They counted about 50 sunspots.
> I do not know how they quantize a sunspot versus a hot photon emission.
Anthony,
latest solar image video from Japan.
I have counted 4 sunspots ( black spots) for the given resolution of this video
https://swc.nict.go.jp/data/latest/sdo/latest_512_HMIIF.mp4
They counted about 50 sunspots.