September 2009 Événements célestes

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

Aperçu des événements célestes mensuels

25 événements célestes au total, dont 4 phases lunaires et 3 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

September 2009 mid-month observing conditions

Mercury

Good
Magnitude apparente: 2.9
Constellation: Libra
Angular diameter: 10.3"
Status: near superior conjunction

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

Ascension droite: 12h04m28s
Déclinaison: -04°52'38"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Leo
Angular diameter: 11.9"
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: 09h43m12s
Déclinaison: +14°25'59"

Mars

Excellent
Magnitude apparente: 0.9
Constellation: Cancer
Angular diameter: 6.2"
Status: near eastern quadrature

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

Ascension droite: 06h54m34s
Déclinaison: +23°17'33"

Jupiter

Excellent
Magnitude apparente: -2.8
Constellation: Aquarius
Angular diameter: 47.3"
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: 21h24m55s
Déclinaison: -16°20'38"

Saturn

Excellent
Magnitude apparente: 1.0
Constellation: Virgo
Angular diameter: 15.9"
Status: near western quadrature

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

Ascension droite: 11h43m28s
Déclinaison: +03°56'03"

Uranus

Fair
Magnitude apparente: 5.8
Constellation: Pisces
Angular diameter: 3.7"
Status: near eastern quadrature

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

Ascension droite: 23h41m56s
Déclinaison: -02°49'30"

Neptune

Fair
Magnitude apparente: 7.7
Constellation: Aquarius
Angular diameter: 2.3"
Status: near western quadrature

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

Ascension droite: 21h47m09s
Déclinaison: -13°48'14"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Leo
Angular diameter: 12742.1"
Status: Moon illumination 18.9%

Observation tip: Moon illumination 18.9%; good for observing lunar surface detail

Ascension droite: 08h11m57s
Déclinaison: +19°48'49"