July 2017 Événements célestes

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

Aperçu des événements célestes mensuels

24 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

July 2017 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -0.2
Constellation: Leo
Angular diameter: 6.1"
Status: near greatest western elongation

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Ascension droite: 09h12m06s
Déclinaison: +17°22'47"

Venus

Excellent
Magnitude apparente: -4.1
Constellation: Gemini
Angular diameter: 16.3"
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: 04h39m26s
Déclinaison: +19°48'21"

Mars

Excellent
Magnitude apparente: 1.6
Constellation: Cancer
Angular diameter: 3.5"
Status: near western quadrature

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

Ascension droite: 07h54m40s
Déclinaison: +21°54'30"

Jupiter

Excellent
Magnitude apparente: -1.9
Constellation: Libra
Angular diameter: 35.9"
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: 12h57m13s
Déclinaison: -04°45'36"

Saturn

Excellent
Magnitude apparente: 0.2
Constellation: Sagittarius
Angular diameter: 18.1"
Status: near western quadrature

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

Ascension droite: 17h27m33s
Déclinaison: -21°55'32"

Uranus

Fair
Magnitude apparente: 5.9
Constellation: Aries
Angular diameter: 3.5"
Status: near eastern quadrature

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

Ascension droite: 01h46m17s
Déclinaison: +10°21'19"

Neptune

Fair
Magnitude apparente: 7.7
Constellation: Pisces
Angular diameter: 2.3"
Status: near eastern quadrature

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

Ascension droite: 23h02m39s
Déclinaison: -07°07'18"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Aries
Angular diameter: 12135.7"
Status: Moon illumination 69.3%

Observation tip: Moon illumination 69.3%; good for observing lunar surface detail

Ascension droite: 00h05m06s
Déclinaison: -02°45'37"