October 1999 Événements célestes

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

Aperçu des événements célestes mensuels

22 événements célestes au total, dont 5 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

October 1999 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -0.2
Constellation: Scorpius
Angular diameter: 5.7"
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: 14h41m46s
Déclinaison: -17°57'30"

Venus

Excellent
Magnitude apparente: -4.7
Constellation: Virgo
Angular diameter: 29.2"
Status: near greatest eastern 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: 10h27m58s
Déclinaison: +07°56'54"

Mars

Excellent
Magnitude apparente: 0.6
Constellation: Sagittarius
Angular diameter: 6.5"
Status: near western quadrature

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

Ascension droite: 17h53m25s
Déclinaison: -25°12'18"

Jupiter

Excellent
Magnitude apparente: -2.9
Constellation: Aries
Angular diameter: 49.6"
Status: near eastern 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: 01h58m03s
Déclinaison: +10°24'40"

Saturn

Excellent
Magnitude apparente: -0.1
Constellation: Taurus
Angular diameter: 20.1"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

Ascension droite: 02h55m01s
Déclinaison: +13°58'05"

Uranus

Fair
Magnitude apparente: 5.8
Constellation: Aquarius
Angular diameter: 3.6"
Status: near western quadrature

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

Ascension droite: 21h02m14s
Déclinaison: -17°36'26"

Neptune

Fair
Magnitude apparente: 7.8
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: 20h15m04s
Déclinaison: -19°33'12"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Sagittarius
Angular diameter: 11482.3"
Status: Moon illumination 26.2%

Observation tip: Moon illumination 26.2%; good for observing lunar surface detail

Ascension droite: 17h28m35s
Déclinaison: -19°31'10"