December 2004 Événements célestes

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

Aperçu des événements célestes mensuels

23 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 2004 mid-month observing conditions

Mercury

Good
Magnitude apparente: 2.1
Constellation: Sagittarius
Angular diameter: 9.5"
Status: near greatest eastern elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Ascension droite: 16h47m18s
Déclinaison: -19°42'16"

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: 15h43m40s
Déclinaison: -18°21'29"

Mars

Excellent
Magnitude apparente: 1.6
Constellation: Scorpius
Angular diameter: 4.0"
Status: near eastern quadrature

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

Ascension droite: 15h21m35s
Déclinaison: -18°07'59"

Jupiter

Excellent
Magnitude apparente: -1.9
Constellation: Libra
Angular diameter: 34.3"
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: 12h58m20s
Déclinaison: -04°53'44"

Saturn

Excellent
Magnitude apparente: -0.2
Constellation: Cancer
Angular diameter: 20.2"
Status: near eastern quadrature

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

Ascension droite: 07h52m32s
Déclinaison: +20°52'47"

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: 22h22m10s
Déclinaison: -10°59'03"

Neptune

Fair
Magnitude apparente: 7.8
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: 21h03m18s
Déclinaison: -16°54'14"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Aquarius
Angular diameter: 12852.9"
Status: Moon illumination 12.8%

Observation tip: Moon illumination 12.8%; good for observing lunar surface detail

Ascension droite: 20h34m15s
Déclinaison: -23°58'45"