© NASA/Ricardo Nunes

Venus at perihelion

Dominic Ford, Editor
From the Inner Planets feed

Objects: Venus
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The sky at

Venus's 225-day orbit around the Sun will carry it to its closest point to the Sun – its perihelion – at a distance of 0.72 AU from the Sun.

In practice, however, Venus's orbit is very close to circular; its distance from the Sun varies by only about 1.5% between perihelion and aphelion. This makes Venus's orbit more perfectly circular than that of any of the Solar System's other planets. As a result, its surface receives almost exactly the same amount of energy from the Sun at perihelion (closest approach to the Sun) and aphelion (furthest recess from the Sun).

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

Object Right Ascension Declination Constellation Angular Size
Venus 11h10m10s +06°45' Leo 11.1"
Sun 12h36m -03°56' Virgo 31'58"

The coordinates above are given in J2000.0.

From Washington, Venus will be visible in the dawn sky, rising at 05:35 (MST) – 1 hour and 59 minutes before the Sun – and reaching an altitude of 19° above the eastern horizon before fading from view as dawn breaks around 07:16.

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The sky on 02 October 2017
Twilight ends
Twilight begins

12-day old moon
Waxing Gibbous


12 days old

Rise Culm. Set
Mercury 07:06 13:08 19:10
Venus 05:32 11:56 18:21
Moon 17:55 23:26 03:58
Mars 05:41 12:03 18:24
Jupiter 09:01 14:34 20:06
Saturn 13:22 18:13 23:05
All times shown in MDT.


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

02 Oct 2017  –  Venus at perihelion
08 Jan 2018  –  Venus at superior solar conjunction
23 Jan 2018  –  Venus at aphelion
15 May 2018  –  Venus at perihelion

Image credit

© NASA/Ricardo Nunes






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