© NASA/Ricardo Nunes

Venus at greatest brightness

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 its greatest brightness in its 2185 morning apparition. It will be shining brightly at mag -4.6.

From Jacksonville , this apparition will not be one of the most prominent but prominent, reaching a peak altitude of 28° above the horizon at sunrise on 29 Jun 2185.

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

2185 morning apparition of Venus

03 Feb 2185 – Venus at inferior solar conjunction
06 Mar 2185 – Venus at greatest brightness
14 Apr 2185 – Venus at greatest elongation west
15 Apr 2185 – Venus at dichotomy
28 Jun 2185 – Venus at highest altitude in morning sky

A graph of the brightness of Venus is available here.

Apparitions of Venus

18 Apr 2183 – Evening apparition
07 Sep 2183 – Morning apparition
24 Nov 2184 – Evening apparition
14 Apr 2185 – Morning apparition
29 Jun 2186 – Evening apparition
17 Nov 2186 – Morning apparition
04 Feb 2188 – 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 brightness

Venus's brightness depends on two factors: its closeness to the Earth, and its phase. Its 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 reaches its brightest when it is still a crescent – with less than half of its disk illuminated. This is because it is much closer to the Earth during its crescent phases than at other times.

As a result, during evening apparitions, Venus reaches maximum brightness a few days after it is at greatest separation from the Sun, which always coincides with it showing half-phase (dichotomy).

Conversely, during morning apparitions, Venus reaches maximum brightness a few days before it is at greatest separation from the Sun.

Venus's position

The coordinates of Venus when it reaches its greatest brightness will be:

Object Right Ascension Declination Constellation Angular Size
Venus 20h31m50s 12°44'S Capricornus 42.4"
Sun 23h01m 6°12'S Aquarius 32'15"

The coordinates above are given in J2000.0.

The sky on 2 Jul 2024

The sky on 2 July 2024
Sunrise
06:26
Sunset
20:32
Twilight ends
22:08
Twilight begins
04:49

26-day old moon
Waning Crescent

9%

26 days old

Planets
Rise Culm. Set
Mercury 07:53 14:51 21:48
Venus 07:01 14:02 21:03
Moon 03:12 10:24 17:43
Mars 02:59 09:40 16:22
Jupiter 04:13 11:08 18:03
Saturn 00:17 06:05 11:54
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

24 Dec 2184  –  Venus at highest altitude in evening sky
14 Apr 2185  –  Venus at greatest elongation west
29 Jun 2185  –  Venus at highest altitude in morning sky
30 May 2186  –  Venus at highest altitude in evening sky

Image credit

© NASA/Ricardo Nunes

Share

Jacksonville

Latitude:
Longitude:
Timezone:

30.33°N
81.66°W
EDT

Color scheme