May 1990 Événements célestes

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

Aperçu des événements célestes mensuels

23 événements célestes au total, dont 5 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

May 1990 mid-month observing conditions

Mercury

Good
Magnitude apparente: 2.5
Constellation: Taurus
Angular diameter: 11.3"
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: 02h26m02s
Déclinaison: +11°54'41"

Venus

Excellent
Magnitude apparente: -4.1
Constellation: Aries
Angular diameter: 16.1"
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: 00h47m50s
Déclinaison: +03°12'01"

Mars

Excellent
Magnitude apparente: 0.7
Constellation: Pisces
Angular diameter: 6.4"
Status: near eastern quadrature

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

Ascension droite: 23h18m25s
Déclinaison: -06°20'48"

Jupiter

Excellent
Magnitude apparente: -1.9
Constellation: Cancer
Angular diameter: 33.7"
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: 06h41m09s
Déclinaison: +23°14'49"

Saturn

Excellent
Magnitude apparente: 0.4
Constellation: Capricornus
Angular diameter: 17.5"
Status: near eastern quadrature

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

Ascension droite: 19h48m44s
Déclinaison: -20°56'03"

Uranus

Fair
Magnitude apparente: 5.6
Constellation: Capricornus
Angular diameter: 3.8"
Status: near eastern quadrature

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

Ascension droite: 18h40m07s
Déclinaison: -23°26'13"

Neptune

Fair
Magnitude apparente: 7.8
Constellation: Capricornus
Angular diameter: 2.3"
Status: near eastern quadrature

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

Ascension droite: 19h01m57s
Déclinaison: -21°48'02"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Capricornus
Angular diameter: 11707.7"
Status: Moon illumination 77.2%

Observation tip: Moon illumination 77.2%; good for observing lunar surface detail

Ascension droite: 19h31m59s
Déclinaison: -23°26'49"