© NASA/Ricardo Nunes

Venus at inferior solar conjunction

Dominic Ford, Editor
From the Inner Planets feed

Objects: Venus
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The sky at

Venus will pass very close to the Sun in the sky as its orbit carries it between the Sun and Earth.

This occurs once in every synodic cycle of the planet (584 days), and marks the end of Venus's apparition in the evening sky and its transition to become a morning object over the next few weeks.

At closest approach, Venus will appear at a separation of only 8° from the Sun, making it totally unobservable for several weeks while it is lost in the Sun's glare.

Venus will also pass perigee – the time when it is closest to the Earth – at around the same time, since it will lie on exactly the same side of the Sun as the Earth in the Solar System. It will move to within a distance of 0.28 AU from the Earth, making it appear with its largest angular size. If it could be observed, it would measure 59.4 arcsec in diameter, whilst appearing completely unilluminated.

The position of Venus at the moment it passes solar conjunction will be:

Object Right Ascension Declination Constellation Angular Size
Venus 00h04m00s 9°28'N Pisces 59.4"
Sun 00h17m +01°52' Pisces 32'04"

The coordinates above are given in J2000.0.

The sky on 25 Mar 2017

The sky on 25 March 2017
Twilight ends
Twilight begins

27-day old moon
Waning Crescent


27 days old

Rise Culm. Set
Mercury 07:39 14:14 20:49
Venus 06:26 13:00 19:33
Moon 05:40 11:14 16:55
Mars 08:35 15:29 22:24
Jupiter 20:30 02:13 07:56
Saturn 02:00 06:46 11:33
All times shown in EDT.


Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.


The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

Related news

03 Feb 2017  –  Venus at highest altitude in evening sky
03 Jun 2017  –  Venus at greatest elongation west
02 Aug 2017  –  Venus at highest altitude in morning sky
06 Jun 2018  –  Venus at highest altitude in evening sky

Image credit

© NASA/Ricardo Nunes






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