October 1987 Événements célestes

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

Aperçu des événements célestes mensuels

24 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

October 1987 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: 0.4
Constellation: Scorpius
Angular diameter: 8.3"
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: 14h38m05s
Déclinaison: -18°55'34"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Scorpius
Angular diameter: 10.1"
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: 14h12m11s
Déclinaison: -12°42'54"

Mars

Excellent
Magnitude apparente: 1.8
Constellation: Libra
Angular diameter: 3.6"
Status: near eastern quadrature

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

Ascension droite: 12h16m09s
Déclinaison: -00°40'56"

Jupiter

Excellent
Magnitude apparente: -2.9
Constellation: Aries
Angular diameter: 49.8"
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: 01h35m36s
Déclinaison: +08°15'47"

Saturn

Excellent
Magnitude apparente: 0.5
Constellation: Sagittarius
Angular diameter: 15.7"
Status: near western quadrature

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

Ascension droite: 17h04m02s
Déclinaison: -21°34'03"

Uranus

Fair
Magnitude apparente: 5.7
Constellation: Sagittarius
Angular diameter: 3.6"
Status: near western quadrature

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

Ascension droite: 17h31m40s
Déclinaison: -23°26'35"

Neptune

Fair
Magnitude apparente: 7.9
Constellation: Capricornus
Angular diameter: 2.2"
Status: near western quadrature

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

Ascension droite: 18h23m31s
Déclinaison: -22°20'24"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Cancer
Angular diameter: 11519.7"
Status: Moon illumination 47.8%

Observation tip: Moon illumination 47.8%; good for observing lunar surface detail

Ascension droite: 07h46m22s
Déclinaison: +26°10'02"