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10/24/2014 -Ephemeris – Venus will pass superior conjunction with the Sun tomorrow

October 24, 2014 Comments off

Ephemeris for Friday, October 24th.  The sun will rise at 8:09.  It’ll be up for 10 hours and 33 minutes, setting at 6:43.   The moon, 1 day past new, will set at 7:20 this evening.

Tomorrow’s event will not be visible.  Venus will pass behind the Sun, though not directly behind it.  Venus can be viewed from the SOHO spacecraft go to http://spaceweather.com/, at the bottom click the link for Solar and Heliospheric Observatory, Click on the Sun Now, then LASCO C2.  The event is called a superior conjunction, meaning the Venus is beyond the Sun.  It will be moving from west of the Sun to the east, from the morning side of the Sun to the evening side.  Venus has been in the morning sky since January 11th.  So it is a morning planet for about 9 months and moves to the evening sky for another 9 months.  In a month or so, Venus will appear low in the southwestern sky shortly after sunset.  It will be our super bright evening star next spring.

Times are for the Traverse City/Interlochen area of Michigan.  They may be different for your location.

Addendum

LASCO C2

Venus approaching superior conjunction 10/20/2014 to 10/23/2014. Credit NASA – SOHO LASCO C2.

03/29/2013 – Ephemeris –

March 28, 2013 2 comments

Ephemeris for Thursday, March 28th.  The sun will rise at 7:30.  It’ll be up for 12 hours and 34 minutes, setting at 8:05.   The moon, 1 day past full, will rise at 10:01 this evening.

Venus is passing superior conjunction with the sun today.  Superior means Venus is passing behind, thought not directly behind the Sun.  You can see it only in the images of the SOHO spacecraft.  On the Internet google soho nasa to find the site.   Our last inferior conjunction of Venus was the transit of Venus last June, when Venus crossed the face of the sun.  Mars is about to pass in conjunction with the sun.  All its conjunctions are superior.  For about a month, starting April 4th. the satellites and rovers cannot receive transmissions from the earth due to the sun’s radio noise, so they are put into a passive state.  The Deep Space Network on the earth can pick up their transmissions, though not well during this period due to its greater sensitivity.

Times are for the Traverse City/Interlochen area of Michigan.  They may be different for your location.

Addendum

SOHO LASCO C3 image of the sun

Annotated SOHO LASCO C3 image of the sun, behind the occulting disk with Venus and Mars. Image: ESA, NASA