December 1987 Eventos celestes

Ubicación del observador:Beijing (39.904°, 116.407°)

Resumen de eventos celestes mensuales

26 eventos celestes en total, incluidos 4 fases lunares y 4 eventos planetarios.

Eventos celestes diarios

Todas las horas en hora local (Asia/Shanghai)

Group Fecha Amanecer/Atardecer Salida/Puesta de la Luna Fase lunar Eventos celestes

Planetary outlook

December 1987 mid-month observing conditions

Mercury

Excellent
Magnitud aparente: -1.0
Constelación: Sagittarius
Angular diameter: 4.7"
Status: near inferior conjunction

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

Ascensión recta: 17h06m46s
Declinación: -23°39'09"

Venus

Excellent
Magnitud aparente: -3.9
Constelación: Capricornus
Angular diameter: 11.8"
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

Ascensión recta: 19h31m56s
Declinación: -23°27'43"

Mars

Excellent
Magnitud aparente: 1.7
Constelación: Scorpius
Angular diameter: 4.1"
Status: near eastern quadrature

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

Ascensión recta: 14h45m41s
Declinación: -15°21'12"

Jupiter

Excellent
Magnitud aparente: -2.6
Constelación: Aries
Angular diameter: 44.5"
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

Ascensión recta: 01h15m04s
Declinación: +06°27'22"

Saturn

Excellent
Magnitud aparente: 0.4
Constelación: Sagittarius
Angular diameter: 15.1"
Status: near western quadrature

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

Ascensión recta: 17h31m46s
Declinación: -22°09'03"

Uranus

Fair
Magnitud aparente: 5.8
Constelación: Sagittarius
Angular diameter: 3.5"
Status: near western quadrature

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

Ascensión recta: 17h45m19s
Declinación: -23°33'51"

Neptune

Fair
Magnitud aparente: 7.9
Constelación: Capricornus
Angular diameter: 2.2"
Status: near western quadrature

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

Ascensión recta: 18h30m54s
Declinación: -22°17'26"

Moon

Excellent
Magnitud aparente: -12.7
Constelación: Libra
Angular diameter: 11827.3"
Status: Moon illumination 35.5%

Observation tip: Moon illumination 35.5%; good for observing lunar surface detail

Ascensión recta: 12h33m05s
Declinación: -04°37'16"