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Close approach of Mars and Uranus

Dominic Ford, Editor
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The sky at

Mars and Uranus will make a close approach, passing within 1°36' of each other.

From Cambridge, the pair will be visible in the evening sky, becoming accessible around 17:16 (EST) as the dusk sky fades, 59° above your south-eastern horizon. They will then reach its highest point in the sky at 18:00, 60° above your southern horizon. They will continue to be observable until around 23:52, when they sink below 10° above your western horizon.

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Mars will be at mag 0.2, and Uranus at mag 5.8, both in the constellation Aries.

The pair will be too widely separated to fit within the field of view of a telescope, but will be visible through a pair of binoculars.

At around the same time, the two objects will also share the same right ascension – called a conjunction.

A graph of the angular separation between Mars and Uranus around the time of closest approach is available here.

The positions of the two objects at the moment of closest approach will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Mars 02h14m40s +14°45' Aries 0.2 8"6
Uranus 02h17m00s +13°15' Aries 5.8 3"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 95° from the Sun, which is in Capricornus at this time of year.

The sky on 20 January 2021
Sunrise
07:08
Sunset
16:42
Twilight ends
18:21
Twilight begins
05:29

7-day old moon
Waxing Crescent

49%

7 days old

Planets
Rise Culm. Set
Mercury 08:06 13:09 18:12
Venus 06:15 10:48 15:22
Moon 11:13 17:46 00:19
Mars 10:59 17:58 00:58
Jupiter 07:32 12:22 17:13
Saturn 07:21 12:08 16:55
All times shown in EST.

Source

The circumstances of this event were computed using the DE405 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

31 Oct 2020  –  Uranus at opposition
30 Apr 2021  –  Uranus at solar conjunction
04 Nov 2021  –  Uranus at opposition
05 May 2022  –  Uranus at solar conjunction

Image credit

None available.

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EST

Color scheme