Venus at dichotomy

Dominic Ford, Editor
From the Inner Planets feed


Objects: Venus

Venus will reach half phase in its 2294–2295 evening apparition. It will be shining brightly at mag -4.4.

From Fairfield , this apparition will be exceptionally well placed and prominent, reaching a peak altitude of 43° above the horizon at sunset on 22 Mar 2295.

2294–2295 evening apparition of Venus

07 Aug 2294 – Venus at superior solar conjunction
17 Mar 2295 – Venus at greatest elongation east
20 Mar 2295 – Venus at dichotomy
22 Mar 2295 – Venus at highest altitude in evening sky
22 Apr 2295 – Venus at greatest brightness
28 May 2295 – Venus at inferior solar conjunction

A graph of the phase of Venus is available here.

Apparitions of Venus

26 May 2292 – Morning apparition
09 Aug 2293 – Evening apparition
29 Dec 2293 – Morning apparition
17 Mar 2295 – Evening apparition
07 Aug 2295 – Morning apparition
21 Oct 2296 – Evening apparition
12 Mar 2297 – Morning 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 02h34m50s 18°16'N Aries 24.3"
Sun 23h45m 1°36'S Pisces 32'09"

The coordinates above are given in J2000.0.

The sky on 2 Jul 2024

The sky on 2 July 2024
Sunrise
05:22
Sunset
20:29
Twilight ends
22:36
Twilight begins
03:14


Waning Crescent

7%

26 days old

Planets
Rise Culm. Set
Mercury 06:52 14:17 21:43
Venus 05:57 13:29 21:00
Moon 02:09 09:49 17:42
Mars 02:06 09:07 16:08
Jupiter 03:13 10:34 17:56
Saturn 23:50 05:32 11:13
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

17 Mar 2295  –  Venus at greatest elongation east
22 Mar 2295  –  Venus at highest altitude in evening sky
07 Aug 2295  –  Venus at greatest elongation west
01 Sep 2295  –  Venus at highest altitude in morning sky

Image credit

© NASA/Ricardo Nunes

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