December 2089 Événements célestes

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

Aperçu des événements célestes mensuels

22 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

December 2089 mid-month observing conditions

Mercury

Good
Magnitude apparente: 2.8
Constellation: Capricornus
Angular diameter: 9.6"
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: 18h09m51s
Déclinaison: -22°37'15"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Sagittarius
Angular diameter: 9.8"
Status: near inferior 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: 17h30m34s
Déclinaison: -23°22'53"

Mars

Excellent
Magnitude apparente: 1.2
Constellation: Capricornus
Angular diameter: 4.0"
Status: near western quadrature

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

Ascension droite: 18h30m24s
Déclinaison: -24°09'49"

Jupiter

Excellent
Magnitude apparente: -1.7
Constellation: Sagittarius
Angular diameter: 31.3"
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: 16h12m03s
Déclinaison: -20°23'10"

Saturn

Excellent
Magnitude apparente: -0.3
Constellation: Gemini
Angular diameter: 20.5"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

Ascension droite: 04h20m19s
Déclinaison: +19°25'29"

Uranus

Fair
Magnitude apparente: 5.9
Constellation: Pisces
Angular diameter: 3.5"
Status: near western quadrature

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

Ascension droite: 22h41m06s
Déclinaison: -09°08'28"

Neptune

Fair
Magnitude apparente: 7.8
Constellation: Leo
Angular diameter: 2.3"
Status: near eastern quadrature

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

Ascension droite: 09h50m36s
Déclinaison: +13°24'29"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Taurus
Angular diameter: 12253.6"
Status: Moon illumination 91.1%

Observation tip: Moon illumination 91.1%; good for observing lunar surface detail

Ascension droite: 03h10m45s
Déclinaison: +14°11'25"