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Mars in 2040: brightness, position and events

Brightest-1.6around Jan 1

Closest (in table)0.612 au92 million km

Farthest2.475 au

Events this year2

Brightest last year-1.3

Events this year

Date (JST)	Event	Mag	Dist (au)	Constellation	Elong.
2040-01-03 00:27	Opposition	-1.6	0.614	Gemini	176.2°
2040-12-17 21:49	Conjunction with the Sun	+1.2	2.449	Ophiuchus	0.7°

Magnitude through the year (lower = brighter)

Twice-monthly position and visibility

Date	Mag	Dist (au)	Constellation	Elong.	Visibility
Jan 1	-1.6	0.612	Gemini	176° W	Most of the night
Jan 15	-1.3	0.644	Gemini	162° E	Most of the night
Feb 1	-0.8	0.734	Gemini	142° E	Evening sky
Feb 15	-0.4	0.838	Gemini	127° E	Evening sky
Mar 1	+0.0	0.969	Gemini	114° E	Evening sky
Mar 15	+0.3	1.101	Gemini	104° E	Evening sky
Apr 1	+0.7	1.267	Gemini	94° E	Evening sky
Apr 15	+0.9	1.403	Gemini	86° E	Evening sky
May 1	+1.1	1.554	Cancer	78° E	Evening sky
May 15	+1.3	1.680	Cancer	72° E	Evening sky
Jun 1	+1.4	1.824	Cancer	64° E	Evening sky
Jun 15	+1.5	1.934	Leo	59° E	Evening sky
Jul 1	+1.6	2.048	Leo	53° E	Evening sky
Jul 15	+1.6	2.137	Leo	48° E	Evening sky
Aug 1	+1.7	2.231	Leo	42° E	Evening sky
Aug 15	+1.7	2.297	Virgo	38° E	Evening sky
Sep 1	+1.7	2.363	Virgo	32° E	Evening sky
Sep 15	+1.6	2.405	Virgo	28° E	Evening sky
Oct 1	+1.6	2.441	Virgo	22° E	Evening sky
Oct 15	+1.6	2.462	Libra	18° E	Evening sky
Nov 1	+1.5	2.474	Libra	13° E	Too close to the Sun
Nov 15	+1.4	2.475	Scorpius	9° E	Too close to the Sun
Dec 1	+1.3	2.467	Ophiuchus	5° E	Too close to the Sun
Dec 15	+1.2	2.452	Ophiuchus	1° E	Too close to the Sun

Computed with the JPL DE421 ephemeris and Skyfield (times in JST). Magnitude and distance are for 12:00 JST on each date. Visibility is a rough guide for mid-northern latitudes such as Japan.

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Mars is brightest around January 2040 (magnitude -1.6); 2 conjunctions, oppositions or elongations occur this year.