Conjunction of Mars and Neptune

Dominic Ford, Editor
From the Conjunctions feed


Mars and Neptune will share the same right ascension, with Mars passing 1°02' to the north of Neptune.

From Cambridge however, the pair will not be readily observable since they will be very close to the Sun, at a separation of only 17° from it.

Mars will be at mag 1.3 in the constellation Pisces, and Neptune at mag 7.9 in the neighbouring constellation of Cetus.

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.

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

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

Object Right Ascension Declination Constellation Magnitude Angular Size
Mars 00h37m50s 3°31'N Pisces 1.3 4"0
Neptune 00h37m50s 2°29'N Cetus 7.9 2"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 17° from the Sun, which is in Pisces at this time of year.

The sky on 13 Mar 2030

The sky on 13 March 2030
Sunrise
06:57
Sunset
18:47
Twilight ends
20:21
Twilight begins
05:24


Waxing Gibbous

65%

9 days old

Planets
Rise Culm. Set
Mercury 07:13 13:06 19:00
Venus 04:49 09:51 14:53
Moon 12:24 20:06 03:41
Mars 07:41 13:57 20:13
Jupiter 00:08 05:01 09:53
Saturn 09:28 16:31 23:35
All times shown in EDT.

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

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

19 Dec 2029  –  Neptune ends retrograde motion
16 Jul 2030  –  Neptune enters retrograde motion
04 Oct 2030  –  Neptune at opposition
21 Dec 2030  –  Neptune ends retrograde motion

Image credit

The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

Share