where can i get an accurate sunspot numbering identification map?

[h0ughy (David)]

where can i get an accurate sunspot numbering identification map?

[sheeny (Al)]

http://www.raben.com/maps
http://www.solarmonitor.org/
http://www.solar.ifa.hawaii.edu/ARMaps/today.html

are 3 that use. I used to use the NOAA page (which is the last one) but occasionally they have a holiday and stop posting, so I had to fine the others.

Search for "Active solar region maps", I'm sure you'll find plenty of others as well. They also help to orient your images.

Al.

[h0ughy (David)]

Originally Posted by sheeny

http://www.raben.com/maps
http://www.solarmonitor.org/
http://www.solar.ifa.hawaii.edu/ARMaps/today.html

are 3 that use. I used to use the NOAA page (which is the last one) but occasionally they have a holiday and stop posting, so I had to fine the others.

Search for "Active solar region maps", I'm sure you'll find plenty of others as well. They also help to orient your images.

Al.

thanki you very much Al

[deanm (Dean)]

Interesting links.

Can anyone describe how the numbering system works?

Perhaps it's a topographical pointer...?

Dean

[Merlin66 (Ken)]

When "they" decide an Active Region/feature warrant's recognition a sequential number is allocated......

[Matt Wastell (Matt)]

Who are 'they'? I have often seen large AR rounding the limb with no allocated number from such sites - Can I name them?

Originally Posted by Merlin66

When "they" decide an Active Region/feature warrant's recognition a sequential number is allocated......

[Merlin66 (Ken)]

Matt,
I'm sure you could ;-)
but the NOAA designation would probably take precedence.

[DavidLJ (David)]

Not well versed in Solar. But maybe this link will help. I enjoy going there.

http://www.lmsal.com/solarsoft/latest_events/

[Merlin66 (Ken)]

This is the definative solar map:
http://www.raben.com/maps

[h0ughy (David)]

they all help