May 1957 Événements célestes

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

Aperçu des événements célestes mensuels

21 événements célestes au total, dont 4 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

May 1957 mid-month observing conditions

Mercury

Good
Magnitude apparente: 2.9
Constellation: Taurus
Angular diameter: 11.6"
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: 02h35m30s
Déclinaison: +12°55'54"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Taurus
Angular diameter: 9.8"
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: 03h59m13s
Déclinaison: +20°27'56"

Mars

Excellent
Magnitude apparente: 1.7
Constellation: Cancer
Angular diameter: 4.2"
Status: near western quadrature

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

Ascension droite: 06h28m35s
Déclinaison: +24°34'23"

Jupiter

Excellent
Magnitude apparente: -2.2
Constellation: Virgo
Angular diameter: 40.2"
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: 11h32m22s
Déclinaison: +04°32'50"

Saturn

Excellent
Magnitude apparente: 0.1
Constellation: Sagittarius
Angular diameter: 18.3"
Status: near eastern quadrature

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

Ascension droite: 16h44m20s
Déclinaison: -20°25'02"

Uranus

Fair
Magnitude apparente: 5.6
Constellation: Leo
Angular diameter: 3.7"
Status: near western quadrature

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

Ascension droite: 08h23m23s
Déclinaison: +19°59'10"

Neptune

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

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

Ascension droite: 13h56m34s
Déclinaison: -10°00'04"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Sagittarius
Angular diameter: 12155.9"
Status: Moon illumination 98.7%

Observation tip: Moon illumination 98.7%; good for observing lunar surface detail

Ascension droite: 16h22m17s
Déclinaison: -19°56'10"