July 1999 Événements célestes

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

Aperçu des événements célestes mensuels

23 événements célestes au total, dont 4 phases lunaires et 2 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

July 1999 mid-month observing conditions

Mercury

Good
Magnitude apparente: 2.0
Constellation: Leo
Angular diameter: 10.8"
Status: near superior conjunction

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

Ascension droite: 08h43m19s
Déclinaison: +14°37'54"

Venus

Excellent
Magnitude apparente: -4.7
Constellation: Virgo
Angular diameter: 37.4"
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: 10h11m13s
Déclinaison: +09°54'43"

Mars

Excellent
Magnitude apparente: -0.2
Constellation: Scorpius
Angular diameter: 10.4"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Ascension droite: 14h03m40s
Déclinaison: -13°59'13"

Jupiter

Excellent
Magnitude apparente: -2.3
Constellation: Taurus
Angular diameter: 39.2"
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: 02h02m24s
Déclinaison: +11°05'59"

Saturn

Excellent
Magnitude apparente: 0.3
Constellation: Taurus
Angular diameter: 17.4"
Status: near eastern quadrature

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

Ascension droite: 02h54m27s
Déclinaison: +14°14'42"

Uranus

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

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

Ascension droite: 21h13m37s
Déclinaison: -16°47'39"

Neptune

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

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

Ascension droite: 20h22m03s
Déclinaison: -19°08'46"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Leo
Angular diameter: 12499.3"
Status: Moon illumination 4.9%

Observation tip: Moon illumination 4.9%; good for observing lunar surface detail

Ascension droite: 09h20m28s
Déclinaison: +15°58'23"