July 1981 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 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

July 1981 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: 0.3
Constellation: Cancer
Angular diameter: 7.8"
Status: near inferior conjunction

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Ascension droite: 06h07m55s
Déclinaison: +20°49'54"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Leo
Angular diameter: 11.3"
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: 09h25m27s
Déclinaison: +16°51'29"

Mars

Excellent
Magnitude apparente: 1.6
Constellation: Gemini
Angular diameter: 3.9"
Status: near eastern quadrature

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

Ascension droite: 05h50m00s
Déclinaison: +23°51'56"

Jupiter

Excellent
Magnitude apparente: -1.9
Constellation: Libra
Angular diameter: 34.6"
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: 12h15m31s
Déclinaison: -00°19'18"

Saturn

Excellent
Magnitude apparente: 0.9
Constellation: Libra
Angular diameter: 16.9"
Status: near western quadrature

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

Ascension droite: 12h19m30s
Déclinaison: +00°27'04"

Uranus

Fair
Magnitude apparente: 5.5
Constellation: Scorpius
Angular diameter: 3.9"
Status: near western quadrature

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

Ascension droite: 15h35m51s
Déclinaison: -19°06'21"

Neptune

Fair
Magnitude apparente: 7.8
Constellation: Sagittarius
Angular diameter: 2.3"
Status: near western quadrature

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

Ascension droite: 17h28m34s
Déclinaison: -21°53'12"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Sagittarius
Angular diameter: 11642.3"
Status: Moon illumination 95.2%

Observation tip: Moon illumination 95.2%; good for observing lunar surface detail

Ascension droite: 17h48m27s
Déclinaison: -20°25'44"