December 2012 Événements célestes

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

Aperçu des événements célestes mensuels

19 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 2012 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -0.5
Constellation: Sagittarius
Angular diameter: 5.5"
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: 16h14m38s
Déclinaison: -19°58'46"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Scorpius
Angular diameter: 11.3"
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: 15h46m19s
Déclinaison: -18°31'53"

Mars

Excellent
Magnitude apparente: 1.2
Constellation: Capricornus
Angular diameter: 4.3"
Status: near western quadrature

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

Ascension droite: 19h33m15s
Déclinaison: -22°53'14"

Jupiter

Excellent
Magnitude apparente: -2.8
Constellation: Gemini
Angular diameter: 48.1"
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: 04h32m39s
Déclinaison: +21°08'53"

Saturn

Excellent
Magnitude apparente: 0.7
Constellation: Scorpius
Angular diameter: 15.9"
Status: near eastern quadrature

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

Ascension droite: 14h25m47s
Déclinaison: -12°01'21"

Uranus

Fair
Magnitude apparente: 5.9
Constellation: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

Ascension droite: 00h18m04s
Déclinaison: +01°10'31"

Neptune

Fair
Magnitude apparente: 7.8
Constellation: Pisces
Angular diameter: 2.2"
Status: near western quadrature

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

Ascension droite: 22h11m50s
Déclinaison: -11°48'08"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Capricornus
Angular diameter: 12884.1"
Status: Moon illumination 4.1%

Observation tip: Moon illumination 4.1%; good for observing lunar surface detail

Ascension droite: 19h09m33s
Déclinaison: -18°23'31"