August 1981 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

21 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

August 1981 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.5
Constellation: Leo
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: 09h59m23s
Declination: +14°07'00"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: Virgo
Angular diameter: 12.8"
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: 11h45m50s
Declination: +02°33'37"

Mars

Excellent
Apparent magnitude: 1.6
Constellation: Cancer
Angular diameter: 4.1"
Status: near eastern quadrature

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

Right ascension: 07h19m57s
Declination: +22°56'51"

Jupiter

Excellent
Apparent magnitude: -1.8
Constellation: Libra
Angular diameter: 32.3"
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: 12h32m57s
Declination: -02°17'34"

Saturn

Excellent
Apparent magnitude: 0.9
Constellation: Libra
Angular diameter: 16.2"
Status: near western quadrature

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

Right ascension: 12h28m43s
Declination: -00°38'13"

Uranus

Fair
Apparent magnitude: 5.6
Constellation: Scorpius
Angular diameter: 3.8"
Status: near western quadrature

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

Right ascension: 15h35m19s
Declination: -19°05'11"

Neptune

Fair
Apparent magnitude: 7.9
Constellation: Sagittarius
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 17h26m18s
Declination: -21°52'40"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Aquarius
Angular diameter: 12095.6"
Status: Moon illumination 99.4%

Observation tip: Moon illumination 99.4%; good for observing lunar surface detail

Right ascension: 21h05m26s
Declination: -17°47'18"