Saturday, June 30, 2012

galactic center transit before midnight

Event Date: July 8th
Time: 11:44(.43) PM


Brief

Back on July 4th, as witnessed from our longitude of 122º 10' 54", the galactic center transited the [azimuth] meridian just after midnight by seconds; the closest that it does to the "0-hour" for the calendar year.  Interestingly enough, as people shoot off the last of 4th of July fireworks before the holiday is over (legally or illegally!), this transit occurs.  As seen in the image below, we see the triple-intersection of the three lines.  I showed this meeting of the three, a couple of months ago when it happened in the early morning hours.  Just as the stars rise almost four minutes earlier each day, as will this transit.  In about two more months, it will happen during evening twilight, happening about four hours earlier than this evening.

click on image to enlarge: courtesy of Starry Night Pro Plus, version 6.4.3, by Simulation Curriculum Corp.


Detailed

   As the image also shows, the ecliptic (green) passes about six degrees north of where the galactic equator crosses the galactic meridian (g.m.); this line is that perpendicular to the Milky Way, with its billions of stars slightly brighter to emphasize.  As a result of the Sun always passing precisely at that spot on the g.m., it means that the Sun will never meet the point of intersection of the two purple lines, marking the galactic center.  There, is also a black hole.  As I mentioned back in mid-May, any adversity or disaster that happens December 21st 2012 will not be astronomically related as a result of the black hole.
   Sagittarius and Scorpious are the two featured constellations here in stick-figure form.  As seen from mid-northern latitudes, they are seen low in the sky at transit time.  The Sun passes the brighter stars of Scorpious during the end of November and much of December, while passing Sagittarius' between the December solstice through mid January.

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