© NASA/Ricardo Nunes

Venus at dichotomy

Dominic Ford, Editor
From the Inner Planets feed

Objects: Venus
Please wait
Loading 0/4
Click and drag to rotate
Mouse wheel to zoom in/out
Touch with mouse to dismiss
The sky at

Venus will reach half phase in its 2058–2059 morning apparition. It will be shining brightly at mag -4.4.

From Cambridge , this apparition will be well placed and prominent, reaching a peak altitude of 35° above the horizon at sunrise on 4 Dec 2058.

Begin typing the name of a town near to you, and then select the town from the list of options which appear below.

2058–2059 morning apparition of Venus

14 Oct 2058 – Venus at inferior solar conjunction
18 Nov 2058 – Venus at greatest brightness
03 Dec 2058 – Venus at highest altitude in morning sky
24 Dec 2058 – Venus at dichotomy
24 Dec 2058 – Venus at greatest elongation west
02 Aug 2059 – Venus at superior solar conjunction

A graph of the phase of Venus is available here.

Apparitions of Venus

31 Dec 2056 – Evening apparition
22 May 2057 – Morning apparition
05 Aug 2058 – Evening apparition
24 Dec 2058 – Morning apparition
12 Mar 2060 – Evening apparition
01 Aug 2060 – Morning apparition
17 Oct 2061 – Evening apparition

Observing Venus

Venus's orbit lies closer to the Sun than the Earth's, meaning that it always appears close to the Sun and is lost in the Sun's glare much of the time.

It is observable for a few months each time it reaches greatest separation from the Sun – moments referred to as greatest elongation. These apparitions repeat roughly once every 1.6 years.

On these occasions, Venus is so bright and conspicuous that it becomes the third brightest object in the sky after the Sun and Moon. It is often called the morning star or the evening star.

Venus's phase

Venus's phase varies depending on its position relative to the Earth. When it passes between the Earth and Sun, for example, the side that is turned towards the Earth is entirely unilluminated, like a new moon.

Conversely, when it lies opposite to the Earth in its orbit, passing almost behind the Sun, it appears fully illuminated, like a full moon. However, at this time it is also at its most distant from the Earth, so it is actually fainter than at other times.

Venus shows an intermediate half phase – called dichotomy – at roughly the same moment that it appears furthest from the Sun, at greatest elongation. The exact times of the two events may differ by a few days, only because Venus's orbit is not quite perfectly aligned with the ecliptic.

Venus's position

The coordinates of Venus when it reaches dichotomy will be:

Object Right Ascension Declination Constellation Angular Size
Venus 14h55m00s 13°26'S Libra 24.8"
Sun 18h09m 23°24'S Sagittarius 32'31"

The coordinates above are given in J2000.0.

The sky on 20 Apr 2024

The sky on 20 April 2024
Sunrise
05:52
Sunset
19:31
Twilight ends
21:16
Twilight begins
04:08

12-day old moon
Waxing Gibbous

91%

12 days old

Planets
Rise Culm. Set
Mercury 05:22 11:48 18:15
Venus 05:33 11:59 18:24
Moon 16:24 22:45 04:56
Mars 04:33 10:20 16:07
Jupiter 06:54 14:03 21:13
Saturn 04:20 09:56 15:32
All times shown in EDT.

Source

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

04 Dec 2058  –  Venus at highest altitude in morning sky
24 Dec 2058  –  Venus at greatest elongation west
12 Mar 2060  –  Venus at greatest elongation east
17 Mar 2060  –  Venus at highest altitude in evening sky

Image credit

© NASA/Ricardo Nunes

Share

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

Color scheme