December 1999 Eventos celestes

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

Resumen de eventos celestes mensuales

20 eventos celestes en total, incluidos 4 fases lunares y 1 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 1999 mid-month observing conditions

Mercury

Excellent
Magnitud aparente: -0.5
Constelación: Sagittarius
Angular diameter: 5.4"
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: 16h15m09s
Declinación: -20°11'05"

Venus

Excellent
Magnitud aparente: -4.1
Constelación: Scorpius
Angular diameter: 16.4"
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

Ascensión recta: 14h35m48s
Declinación: -12°47'22"

Mars

Excellent
Magnitud aparente: 0.9
Constelación: Aquarius
Angular diameter: 5.3"
Status: near western quadrature

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

Ascensión recta: 21h09m01s
Declinación: -17°43'54"

Jupiter

Excellent
Magnitud aparente: -2.7
Constelación: Aries
Angular diameter: 45.2"
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: 01h34m53s
Declinación: +08°26'27"

Saturn

Excellent
Magnitud aparente: 0.0
Constelación: Taurus
Angular diameter: 19.7"
Status: near western quadrature

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

Ascensión recta: 02h37m33s
Declinación: +12°43'51"

Uranus

Fair
Magnitud aparente: 5.9
Constelación: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

Ascensión recta: 21h06m40s
Declinación: -17°15'36"

Neptune

Fair
Magnitud aparente: 7.8
Constelación: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Ascensión recta: 20h19m19s
Declinación: -19°20'33"

Moon

Excellent
Magnitud aparente: -12.7
Constelación: Pisces
Angular diameter: 11912.7"
Status: Moon illumination 39.5%

Observation tip: Moon illumination 39.5%; good for observing lunar surface detail

Ascensión recta: 22h51m54s
Declinación: -10°31'26"