January 2040 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

26 sky events total, including 4 moon phases and 3 planetary events.

Daily Sky Events

All times are in local time (Asia/Shanghai)

Group Date Sunrise/Sunset Moonrise/Moonset Moon Phase Sky Events

Planetary outlook

January 2040 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.1
Constellation: Aquarius
Angular diameter: 4.9"
Status: near greatest western elongation

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 20h13m18s
Declination: -22°04'16"

Venus

Excellent
Apparent magnitude: -4.0
Constellation: Sagittarius
Angular diameter: 12.9"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

Right ascension: 17h20m47s
Declination: -21°47'17"

Mars

Excellent
Apparent magnitude: -1.3
Constellation: Cancer
Angular diameter: 14.6"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Right ascension: 06h32m36s
Declination: +27°08'42"

Jupiter

Excellent
Apparent magnitude: -2.2
Constellation: Libra
Angular diameter: 39.6"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its moons are easy to spot and it is excellent for telescope observing

Right ascension: 12h08m52s
Declination: +00°30'18"

Saturn

Excellent
Apparent magnitude: 0.8
Constellation: Libra
Angular diameter: 17.9"
Status: near eastern quadrature

Observation tip: Visible to the naked eye; Saturn’s rings require a telescope to see clearly

Right ascension: 12h47m53s
Declination: -02°29'55"

Uranus

Fair
Apparent magnitude: 5.4
Constellation: Leo
Angular diameter: 4.0"
Status: near eastern quadrature

Observation tip: Binoculars are recommended; Binoculars or a telescope are recommended

Right ascension: 08h16m13s
Declination: +20°22'00"

Neptune

Fair
Apparent magnitude: 7.7
Constellation: Aries
Angular diameter: 2.3"
Status: near western quadrature

Observation tip: A telescope is required; A telescope is required; Neptune appears blue-green

Right ascension: 01h57m13s
Declination: +10°06'49"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Aquarius
Angular diameter: 12916.8"
Status: Moon illumination 1.2%

Observation tip: Moon illumination 1.2%; good for observing lunar surface detail

Right ascension: 20h40m08s
Declination: -22°41'41"