April 1939 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

April 1939 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: 1.9
Constellation: Aries
Angular diameter: 10.7"
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: 00h21m34s
Déclinaison: +02°07'07"

Venus

Excellent
Magnitude apparente: -4.0
Constellation: Pisces
Angular diameter: 13.7"
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: 23h15m18s
Déclinaison: -06°05'20"

Mars

Excellent
Magnitude apparente: -0.1
Constellation: Capricornus
Angular diameter: 9.7"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Ascension droite: 18h57m39s
Déclinaison: -23°28'18"

Jupiter

Excellent
Magnitude apparente: -2.1
Constellation: Pisces
Angular diameter: 33.9"
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: 23h40m58s
Déclinaison: -03°11'37"

Saturn

Excellent
Magnitude apparente: 0.6
Constellation: Aries
Angular diameter: 16.0"
Status: near eastern quadrature

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

Ascension droite: 01h22m32s
Déclinaison: +06°16'14"

Uranus

Fair
Magnitude apparente: 5.9
Constellation: Taurus
Angular diameter: 3.4"
Status: near western quadrature

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

Ascension droite: 02h56m18s
Déclinaison: +16°26'48"

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: 11h29m16s
Déclinaison: +04°37'24"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Pisces
Angular diameter: 11542.2"
Status: Moon illumination 20.6%

Observation tip: Moon illumination 20.6%; good for observing lunar surface detail

Ascension droite: 22h03m12s
Déclinaison: -06°44'24"