April 1931 Événements célestes

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

Aperçu des événements célestes mensuels

26 événements célestes au total, dont 4 phases lunaires et 3 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

April 1931 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: 0.8
Constellation: Taurus
Angular diameter: 8.8"
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: 02h35m13s
Déclinaison: +18°22'29"

Venus

Excellent
Magnitude apparente: -4.0
Constellation: Pisces
Angular diameter: 13.9"
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: 23h13m12s
Déclinaison: -06°16'53"

Mars

Excellent
Magnitude apparente: 0.5
Constellation: Leo
Angular diameter: 8.1"
Status: near western quadrature

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

Ascension droite: 08h29m46s
Déclinaison: +21°32'45"

Jupiter

Excellent
Magnitude apparente: -2.1
Constellation: Cancer
Angular diameter: 37.0"
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: 06h55m31s
Déclinaison: +23°08'42"

Saturn

Excellent
Magnitude apparente: 0.5
Constellation: Capricornus
Angular diameter: 16.7"
Status: near eastern quadrature

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

Ascension droite: 19h39m07s
Déclinaison: -21°14'19"

Uranus

Fair
Magnitude apparente: 6.0
Constellation: Aries
Angular diameter: 3.4"
Status: near eastern quadrature

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

Ascension droite: 00h59m19s
Déclinaison: +05°39'25"

Neptune

Fair
Magnitude apparente: 7.9
Constellation: Virgo
Angular diameter: 2.3"
Status: near western quadrature

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

Ascension droite: 10h21m44s
Déclinaison: +11°00'19"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Pisces
Angular diameter: 11468.7"
Status: Moon illumination 8.3%

Observation tip: Moon illumination 8.3%; good for observing lunar surface detail

Ascension droite: 23h29m20s
Déclinaison: -05°37'43"