September 2031 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

20 sky events total, including 4 moon phases and 1 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

September 2031 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.4
Constellation: Virgo
Angular diameter: 5.2"
Status: near inferior conjunction

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

Right ascension: 11h03m31s
Declination: +07°59'58"

Venus

Excellent
Apparent magnitude: -4.8
Constellation: Leo
Angular diameter: 38.9"
Status: near greatest eastern elongation

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: 08h56m30s
Declination: +11°55'49"

Mars

Excellent
Apparent magnitude: 0.2
Constellation: Sagittarius
Angular diameter: 8.1"
Status: near western quadrature

Observation tip: Visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Right ascension: 16h43m46s
Declination: -24°22'19"

Jupiter

Excellent
Apparent magnitude: -2.2
Constellation: Sagittarius
Angular diameter: 38.1"
Status: near western 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: 17h18m40s
Declination: -22°52'51"

Saturn

Excellent
Apparent magnitude: -0.0
Constellation: Gemini
Angular diameter: 18.5"
Status: near eastern quadrature

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

Right ascension: 05h28m20s
Declination: +21°42'12"

Uranus

Fair
Apparent magnitude: 5.6
Constellation: Gemini
Angular diameter: 3.7"
Status: near eastern quadrature

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

Right ascension: 05h47m26s
Declination: +23°32'07"

Neptune

Fair
Apparent magnitude: 7.7
Constellation: Aries
Angular diameter: 2.4"
Status: near eastern quadrature

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

Right ascension: 00h57m03s
Declination: +04°21'06"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Virgo
Angular diameter: 11655.5"
Status: Moon illumination 3.4%

Observation tip: Moon illumination 3.4%; good for observing lunar surface detail

Right ascension: 10h06m53s
Declination: +06°17'13"