January 1921 Événements célestes

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

Aperçu des événements célestes mensuels

16 événements célestes au total, dont 5 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 1921 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -1.3
Constellation: Capricornus
Angular diameter: 4.7"
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: 19h41m26s
Déclinaison: -23°23'00"

Venus

Excellent
Magnitude apparente: -4.3
Constellation: Pisces
Angular diameter: 18.8"
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: 22h45m17s
Déclinaison: -09°01'41"

Mars

Excellent
Magnitude apparente: 1.1
Constellation: Pisces
Angular diameter: 4.8"
Status: near western quadrature

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

Ascension droite: 22h38m10s
Déclinaison: -09°35'30"

Jupiter

Excellent
Magnitude apparente: -2.3
Constellation: Virgo
Angular diameter: 41.3"
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: 11h20m32s
Déclinaison: +05°39'13"

Saturn

Excellent
Magnitude apparente: 0.8
Constellation: Virgo
Angular diameter: 18.7"
Status: near eastern quadrature

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

Ascension droite: 11h44m01s
Déclinaison: +04°07'25"

Uranus

Fair
Magnitude apparente: 6.0
Constellation: Pisces
Angular diameter: 3.4"
Status: near western quadrature

Observation tip: A telescope is required; Binoculars or a telescope are recommended

Ascension droite: 22h22m28s
Déclinaison: -10°56'29"

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: 09h01m23s
Déclinaison: +16°59'52"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Pisces
Angular diameter: 11764.6"
Status: Moon illumination 27.8%

Observation tip: Moon illumination 27.8%; good for observing lunar surface detail

Ascension droite: 23h47m25s
Déclinaison: +01°44'56"