January 1999 Événements célestes

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

Aperçu des événements célestes mensuels

20 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

January 1999 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -0.5
Constellation: Capricornus
Angular diameter: 4.9"
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: 18h52m09s
Déclinaison: -23°57'46"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Aquarius
Angular diameter: 10.5"
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: 21h03m21s
Déclinaison: -18°24'34"

Mars

Excellent
Magnitude apparente: 0.8
Constellation: Libra
Angular diameter: 6.9"
Status: near eastern quadrature

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

Ascension droite: 13h35m43s
Déclinaison: -07°50'26"

Jupiter

Excellent
Magnitude apparente: -2.2
Constellation: Pisces
Angular diameter: 36.7"
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

Ascension droite: 23h40m36s
Déclinaison: -03°23'57"

Saturn

Excellent
Magnitude apparente: 0.4
Constellation: Aries
Angular diameter: 18.1"
Status: near western quadrature

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

Ascension droite: 01h43m52s
Déclinaison: +08°05'44"

Uranus

Fair
Magnitude apparente: 5.9
Constellation: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

Ascension droite: 20h57m26s
Déclinaison: -17°52'32"

Neptune

Fair
Magnitude apparente: 7.9
Constellation: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Ascension droite: 20h14m59s
Déclinaison: -19°31'04"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Sagittarius
Angular diameter: 11682.6"
Status: Moon illumination 7.2%

Observation tip: Moon illumination 7.2%; good for observing lunar surface detail

Ascension droite: 17h32m54s
Déclinaison: -18°49'32"