August 1981 Astronomické jevy

Poloha pozorovatele:Beijing (39.904°, 116.407°)

Přehled měsíčních nebeských úkazů

21 celkem nebeských úkazů, včetně 4 fáze Měsíce a 1 planetární jevy.

Denní nebeské úkazy

Všechny časy jsou v místním čase (Asia/Shanghai)

Group Datum Východ/západ Slunce Východ/západ Měsíce Fáze Měsíce Astronomické jevy

Planetary outlook

August 1981 mid-month observing conditions

Mercury

Excellent
Zdánlivá magnituda: -1.5
Souhvězdí: 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

Rektascenze: 09h59m23s
Deklinace: +14°07'00"

Venus

Excellent
Zdánlivá magnituda: -3.9
Souhvězdí: 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

Rektascenze: 11h45m50s
Deklinace: +02°33'37"

Mars

Excellent
Zdánlivá magnituda: 1.6
Souhvězdí: 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

Rektascenze: 07h19m57s
Deklinace: +22°56'51"

Jupiter

Excellent
Zdánlivá magnituda: -1.8
Souhvězdí: 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

Rektascenze: 12h32m57s
Deklinace: -02°17'34"

Saturn

Excellent
Zdánlivá magnituda: 0.9
Souhvězdí: 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

Rektascenze: 12h28m43s
Deklinace: -00°38'13"

Uranus

Fair
Zdánlivá magnituda: 5.6
Souhvězdí: Scorpius
Angular diameter: 3.8"
Status: near western quadrature

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

Rektascenze: 15h35m19s
Deklinace: -19°05'11"

Neptune

Fair
Zdánlivá magnituda: 7.9
Souhvězdí: Sagittarius
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascenze: 17h26m18s
Deklinace: -21°52'40"

Moon

Excellent
Zdánlivá magnituda: -12.7
Souhvězdí: Aquarius
Angular diameter: 12095.6"
Status: Moon illumination 99.4%

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

Rektascenze: 21h05m26s
Deklinace: -17°47'18"