August 1999 Événements célestes

Lieu d'observation:Beijing (39.904°, 116.407°)

Aperçu des événements célestes mensuels

21 événements célestes au total, dont 4 phases lunaires et 3 événements planétaires.

Événements célestes quotidiens

Toutes les heures en heure locale (Asia/Shanghai)

Group Date Lever/Coucher du soleil Lever/Coucher de la lune Phase lunaire Événements célestes

Planetary outlook

August 1999 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -0.1
Constellation: Leo
Angular diameter: 7.4"
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

Ascension droite: 08h20m03s
Déclinaison: +18°28'48"

Venus

Excellent
Magnitude apparente: -4.0
Constellation: Leo
Angular diameter: 57.0"
Status: near superior conjunction

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

Ascension droite: 09h59m07s
Déclinaison: +04°22'18"

Mars

Excellent
Magnitude apparente: 0.1
Constellation: Scorpius
Angular diameter: 8.6"
Status: near western quadrature

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

Ascension droite: 15h03m26s
Déclinaison: -19°02'47"

Jupiter

Excellent
Magnitude apparente: -2.6
Constellation: Taurus
Angular diameter: 43.2"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its moons are easy to spot and it is excellent for telescope observing

Ascension droite: 02h12m03s
Déclinaison: +11°49'35"

Saturn

Excellent
Magnitude apparente: 0.2
Constellation: Taurus
Angular diameter: 18.3"
Status: near eastern quadrature

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

Ascension droite: 03h00m53s
Déclinaison: +14°35'29"

Uranus

Fair
Magnitude apparente: 5.7
Constellation: Aquarius
Angular diameter: 3.7"
Status: near western quadrature

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

Ascension droite: 21h08m50s
Déclinaison: -17°09'09"

Neptune

Fair
Magnitude apparente: 7.7
Constellation: Aquarius
Angular diameter: 2.3"
Status: near western quadrature

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

Ascension droite: 20h18m39s
Déclinaison: -19°20'28"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Libra
Angular diameter: 11928.3"
Status: Moon illumination 14.2%

Observation tip: Moon illumination 14.2%; good for observing lunar surface detail

Ascension droite: 12h27m32s
Déclinaison: +01°36'05"