May 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 1 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

May 1999 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -1.1
Constellation: Taurus
Angular diameter: 5.3"
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: 02h37m46s
Déclinaison: +13°57'11"

Venus

Excellent
Magnitude apparente: -4.2
Constellation: Cancer
Angular diameter: 18.0"
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

Ascension droite: 06h31m02s
Déclinaison: +25°52'15"

Mars

Excellent
Magnitude apparente: -1.4
Constellation: Libra
Angular diameter: 15.7"
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: 13h41m36s
Déclinaison: -10°01'35"

Jupiter

Excellent
Magnitude apparente: -2.1
Constellation: Aries
Angular diameter: 34.1"
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: 01h20m39s
Déclinaison: +07°17'52"

Saturn

Excellent
Magnitude apparente: 0.4
Constellation: Taurus
Angular diameter: 16.3"
Status: near eastern quadrature

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

Ascension droite: 02h29m13s
Déclinaison: +12°25'07"

Uranus

Fair
Magnitude apparente: 5.8
Constellation: Aquarius
Angular diameter: 3.6"
Status: near eastern quadrature

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

Ascension droite: 21h17m44s
Déclinaison: -16°26'59"

Neptune

Fair
Magnitude apparente: 7.8
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: 20h26m26s
Déclinaison: -18°53'28"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Taurus
Angular diameter: 13014.7"
Status: Moon illumination 0.6%

Observation tip: Moon illumination 0.6%; good for observing lunar surface detail

Ascension droite: 03h02m01s
Déclinaison: +11°58'07"