Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Classification of active regions

  • Please log in to reply
3 replies to this topic

#1 Avgvstvs

Avgvstvs

    Ranger 4

  • -----
  • topic starter
  • Posts: 382
  • Joined: 10 Jun 2020
  • Loc: Australia

Posted 27 February 2021 - 01:12 PM

This maybe a silly question but I have just re-started solar observing

Is there an official site from where active regions are named?

Such as AR2804 & 2805 recently?



#2 MalVeauX

MalVeauX

    Cosmos

  • *****
  • Posts: 8,820
  • Joined: 25 Feb 2016
  • Loc: Florida

Posted 27 February 2021 - 01:17 PM

Heya,

 

The NOAA names them I think. My question is, what criteria is needed to be designated a NOAA active region versus a disturbance, etc.

 

https://www.noaa.gov/

 

Very best,


Edited by MalVeauX, 27 February 2021 - 01:20 PM.

  • Avgvstvs likes this

#3 Avgvstvs

Avgvstvs

    Ranger 4

  • -----
  • topic starter
  • Posts: 382
  • Joined: 10 Jun 2020
  • Loc: Australia

Posted 01 March 2021 - 08:23 AM

Thanks  MalVeauX much appreciated


  • MalVeauX likes this

#4 bob71741

bob71741

    Apollo

  • *****
  • Posts: 1,311
  • Joined: 16 Feb 2008

Posted 01 March 2021 - 10:11 AM

As you can see in the daily solar region summary, the active regions are designated and described as with sunspots or no sunspots-just plage or regions due to return.

 

daily summary found here: https://www.swpc.noa...-region-summary




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics