September 1957 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

22 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

September 1957 mid-month observing conditions

Mercury

Good
Apparent magnitude: 2.9
Constellation: Virgo
Angular diameter: 9.7"
Status: near greatest eastern elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 10h52m13s
Declination: +04°58'24"

Venus

Excellent
Apparent magnitude: -4.0
Constellation: Libra
Angular diameter: 14.6"
Status: near greatest western 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: 13h54m09s
Declination: -12°18'16"

Mars

Excellent
Apparent magnitude: 1.6
Constellation: Virgo
Angular diameter: 3.5"
Status: near western quadrature

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

Right ascension: 11h39m42s
Declination: +03°12'28"

Jupiter

Excellent
Apparent magnitude: -1.7
Constellation: Libra
Angular diameter: 30.7"
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: 12h30m02s
Declination: -02°02'08"

Saturn

Excellent
Apparent magnitude: 0.5
Constellation: Sagittarius
Angular diameter: 16.3"
Status: near western quadrature

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

Right ascension: 16h28m31s
Declination: -20°13'07"

Uranus

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

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

Right ascension: 08h50m17s
Declination: +18°20'06"

Neptune

Fair
Apparent magnitude: 8.0
Constellation: Libra
Angular diameter: 2.2"
Status: near western quadrature

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

Right ascension: 13h57m29s
Declination: -10°11'15"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Taurus
Angular diameter: 11843.7"
Status: Moon illumination 71.8%

Observation tip: Moon illumination 71.8%; good for observing lunar surface detail

Right ascension: 03h36m26s
Declination: +18°01'32"