December 2019 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

December 2019 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -0.6
Constellation: Sagittarius
Angular diameter: 5.1"
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: 16h26m21s
Déclinaison: -21°05'33"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Capricornus
Angular diameter: 12.2"
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: 19h42m41s
Déclinaison: -23°08'45"

Mars

Excellent
Magnitude apparente: 1.7
Constellation: Scorpius
Angular diameter: 4.1"
Status: near eastern quadrature

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

Ascension droite: 14h58m45s
Déclinaison: -16°24'50"

Jupiter

Excellent
Magnitude apparente: -1.8
Constellation: Capricornus
Angular diameter: 31.8"
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: 18h12m01s
Déclinaison: -23°17'30"

Saturn

Excellent
Magnitude apparente: 0.6
Constellation: Capricornus
Angular diameter: 15.2"
Status: near western quadrature

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

Ascension droite: 19h24m11s
Déclinaison: -21°57'10"

Uranus

Fair
Magnitude apparente: 5.8
Constellation: Taurus
Angular diameter: 3.7"
Status: near western quadrature

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

Ascension droite: 02h03m42s
Déclinaison: +12°01'29"

Neptune

Fair
Magnitude apparente: 7.8
Constellation: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

Ascension droite: 23h10m07s
Déclinaison: -06°28'07"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Leo
Angular diameter: 12434.0"
Status: Moon illumination 91.0%

Observation tip: Moon illumination 91.0%; good for observing lunar surface detail

Ascension droite: 08h00m42s
Déclinaison: +22°19'36"