August 1981 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

21 himmelbegivenheder i alt, inklusive 4 månefaser og 1 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

August 1981 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -1.5
Stjernebillede: 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

Rektascension: 09h59m23s
Deklination: +14°07'00"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: 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

Rektascension: 11h45m50s
Deklination: +02°33'37"

Mars

Excellent
Tilsyneladende magnitude: 1.6
Stjernebillede: 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

Rektascension: 07h19m57s
Deklination: +22°56'51"

Jupiter

Excellent
Tilsyneladende magnitude: -1.8
Stjernebillede: 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

Rektascension: 12h32m57s
Deklination: -02°17'34"

Saturn

Excellent
Tilsyneladende magnitude: 0.9
Stjernebillede: 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

Rektascension: 12h28m43s
Deklination: -00°38'13"

Uranus

Fair
Tilsyneladende magnitude: 5.6
Stjernebillede: Scorpius
Angular diameter: 3.8"
Status: near western quadrature

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

Rektascension: 15h35m19s
Deklination: -19°05'11"

Neptune

Fair
Tilsyneladende magnitude: 7.9
Stjernebillede: Sagittarius
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascension: 17h26m18s
Deklination: -21°52'40"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Aquarius
Angular diameter: 12095.6"
Status: Moon illumination 99.4%

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

Rektascension: 21h05m26s
Deklination: -17°47'18"