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  • #13075
    fealeybob14
    Participant

      SOHO (C3) movie theater shows Venus as it approaches inferior conjunction …
      https://soho.nascom.nasa.gov/data/Theater/

      #13076
      fealeybob14
      Participant

        Today's SOHO LASCO C3 image shows two planets (Venus and Mars) in superior conjunction in the constellation Leo.


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        #13077
        Luka B
        Participant

          That's a neat image!

          #13078
          fealeybob14
          Participant

            Thanks Luka!  Had to post again as Mercury has now entered the fov of C3 SOHO's camera.


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            #13079
            fealeybob14
            Participant

              Now go to the SOHO Movie Theater https://soho.nascom.nasa.gov/data/Theater/ and choose the C3 image at 512 image resolution, the dates Aug 30 to Sept 1 and generate the images, and watch the neat celestial (solar system) orbital mechanics of Venus, Mars and Mercury.  Notable is the faster orbital motion of Mercury (than Venus) as it swings into superior conjunction and the slower motion of dim Mars (with respect to the background star Regulus on the far right) as Earth overtakes it and Mars moves towards conjunction with the sun.  (No need to download the 250+ images generated; just use the buttons below the first image to play the sequence)!

              #13080
              fealeybob14
              Participant

                SOHO images (C3) from early Jan 2020 show conjuctions of planets Saturn, Mercury and Jupiter as well as a possible coronal mass ejection (CME).  Selected images are below, but also run the SOHO Movie Theater https://soho.nascom.nasa.gov/data/Theater/ (with C3, 512 resolution and dates Jan 6 thru Jan 8th) for a nice video of the events.


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                #13081
                fealeybob14
                Participant

                  Almost missed this small sunspot group!


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                  #13082
                  fealeybob14
                  Participant

                    While the evening star Venus has sunken from view Mercury is still (barely) visible in the NW after sunset.  SOHO image from today (left) shows Venus approaching inferior conjunction in Taurus.  A screenshot image from several weeks ago using a moon filter on my 10 inch SCT is attached.


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                    #13083
                    fealeybob14
                    Participant

                      One cannot rest when it comes to the "quiet sun"; today's SOHO image shows a new sunspot group!  I am also sure there were others (maybe one or two) that were wondering how close was Venus to making a transit of the sun during its recent inferior conjunction.  Well check out the C2 SOHO movie theater from June 2nd to June 5th to find out! https://soho.nascom.nasa.gov/data/Theater/


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                      #13084
                      fealeybob14
                      Participant

                        The latest SOHO C3 image shows what appears to be a comet (?new);https://sohowww.nascom.nasa.gov/data/realtime/c3/512/
                        Using the SOHO movie theater with C3 and dates 6-23 and 6-24 shows the probable comet approaching the sun (right lower C3 fov).
                        The Sungrazer Project https://sungrazer.nrl.navy.mil/index.php?p=FAQs seems to mention a left upper fov comet thats visible in SOHO C2 and C3??


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                        #13085
                        Jeff Newland
                        Participant

                          Bob, yes, there is a comet there:  Comet NEOWISE (C/2020 F3).
                          They do mention it here on spaceweather.com:  https://spaceweather.com/
                          Scroll done a bit to see it mentioned, has the SOHO image.

                          #13086
                          fealeybob14
                          Participant

                            Awesome Jeff!  Thanks so much!  Would be great if that comet would get brighter and visible on the outbound journey!

                            #13087
                            Jeff Newland
                            Participant

                              Yeah, it would be nice if it is visible here at a mag 3 or so when it emerges on the other side. 

                              #13088
                              fealeybob14
                              Participant

                                A good site to follow this comet C/2020 F3 (NEOWISE) here: https://theskylive.com/c2020f3-tracker

                                #13089
                                fealeybob14
                                Participant

                                  This site is excellent and now my favorite for following (and hopefully getting out to see and photograph) comet C/2020 F3 (NEOWISE) https://theskylive.com/c2020f3-info#position

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