MSGID: 1:317/3 636d3c59   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
    EPOD - a service of USRA   
      
   The Earth Science Picture of the Day (EPOD) highlights the diverse processes   
   and phenomena which shape our planet and our lives. EPOD will collect and   
   archive photos, imagery, graphics, and artwork with short explanatory   
   captions and links exemplifying features within the Earth system. The   
   community is invited to contribute digital imagery, short captions and   
   relevant links.   
      
      
    A Year of Sunspots   
      
      November 10, 2022   
      
      
       A Year in the Sun (1)   
      
      Photographer:  Soumyadeep Mukherjee   
      Summary Author:  Soumyadeep Mukherjee   
      
      I imaged the  Sun for 365 days between December 25, 2020, and   
      December 31, 2021, missing just six days during this period. The   
      project started with the aim of recording the journey of a single   
       sunspot across the solar disk, but I managed to continue imaging   
      for an entire year. From my home in Kolkata, India, I blended the   
      images to create a single shot, which records the rise of  Solar   
      Cycle 25. A total of 127 active regions appeared on the Earth-facing   
      solar disk (AR 12794–AR 12921) during this phase – the image above   
      shows all of them.   
      
      Two  bands of sunspots can be identified moving across the solar   
      disk, around 15–35 degrees north and south of the equator. Note that   
      they gradually start drifting towards the solar equator – a phenomenon   
      known as  Spörer’s Law.   
      Photo details: Nikon D5600 camera; Sigma 150–600c lens; Thousand Oaks   
      Filter (White-Light); f/6.3; ISO 100; 365 individual exposures   
      (1/80-second to 1/500-second), 600mm; Post-processing using PIPP and   
      Photoshop.   
      Kolkata, India Coordinates: 22.5726, 88.3639   
      
      
   Related EPODs   
      
       A Year of Sunspots  Sun Plunging into the Mist and Sea  Dust   
      Storm Sunset over Portugal  Sun Granules  Violet and Green   
      Flashes at Sunset  Panoramic View of Etna and the Winter Solstice   
       More...   
      
   Sun Links   
      
        *  NASA Solar Dynamics Observatory   
        *  NASA Solar Eclipse Page   
        *  NOAA Solar Calculator   
        *  The Sun-Earth Connection: Heliophysics   
        *  The Sunspot Cycle   
        *  Solar System Exploration: The Sun   
        *  The Sun Now   
        *  This Week’s Sky   
      
   -   
      Earth Science Picture of the Day is a service of the  Universities   
      Space Research Association.   
      
   https://epod.usra.edu   
       
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