Maurizio Marsigli Posted July 27, 2023 Share Posted July 27, 2023 Where can I find the gauss of the spots? Mount Wilson is closed as of October 2022. Link to comment Share on other sites More sharing options...
Jesterface23 Posted July 27, 2023 Share Posted July 27, 2023 A color table for SDO's colored magnetogram imagery is here, https://sdo.gsfc.nasa.gov/assets/docs/HMI_M.ColorTable.pdf Obviously it is rough estimating that way and valued can go above or below 1500G/-1500G. Values can probably be obtained from science fits files, but a spot would pretty much need to be directly facing us to get a good value as we won't get a correct reading when they are viewed further at an angle. 2 Link to comment Share on other sites More sharing options...
Maurizio Marsigli Posted July 28, 2023 Author Share Posted July 28, 2023 That's what I meant Link to comment Share on other sites More sharing options...
Jesterface23 Posted July 28, 2023 Share Posted July 28, 2023 If you are looking for the polarity, SDO has an archive of imagery. https://sdo.gsfc.nasa.gov/assets/img/browse/ HMIB is black and white magnetogram imagery and HMIBC is colored with with the previous link's color table. The intensitygram imagery, HMIIC, HMIIF, HMII, would be what is similar to your sketch. We can't see the magnetic strength from those. Link to comment Share on other sites More sharing options...
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