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Watching Mercury today



 
 
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Old January 23rd 19, 07:23 PM posted to sci.astro.amateur
Gerald Kelleher
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Default Watching Mercury today

https://sohowww.nascom.nasa.gov/data...current_c3.gif

https://www.theplanetstoday.com/

Remember now, the back and forth motions of the slower moving planets are gauged against the background stars but the back and forth motions (direct/retrograde motions) of the faster planets are gauged to the central Sun.

Some openly admit they have no idea how to interpret the imaging and that is fine, not everyone can be an astronomer and know how and why to partition the faster and slower planets by perspectives seen from a moving Earth.

Just discovered the Soho Lasco imaging and it is fascinating regardless of which year the timelapse is produced. Pity none of you have any influence but it will make it into wider circulation anyway and especially watching the change in position of the stars minus stellar circumpolar motion and due solely to the orbital motion of the Earth with the satellite tracking our orbital motion.

 




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