December 1930 天象

观测地点:Beijing (39.904°, 116.407°)

月度天象概览

22 天文事件合计,包括 4 月相和 1 行星事件。

每日天象

所有时间均为本地时间 (Asia/Shanghai)

Group 日期 日出/日落 月出/月落 月相 天象

Planetary outlook

December 1930 mid-month observing conditions

Mercury

Excellent
视星等: -0.6
星座: Capricornus
Angular diameter: 6.0"
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

赤经: 18h50m52s
赤纬: -25°06'29"

Venus

Excellent
视星等: -4.8
星座: Scorpius
Angular diameter: 50.7"
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

赤经: 15h21m21s
赤纬: -15°53'57"

Mars

Excellent
视星等: -0.4
星座: Leo
Angular diameter: 11.3"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

赤经: 09h20m37s
赤纬: +18°44'33"

Jupiter

Excellent
视星等: -2.7
星座: Cancer
Angular diameter: 46.0"
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

赤经: 07h19m34s
赤纬: +22°17'48"

Saturn

Excellent
视星等: 0.6
星座: Capricornus
Angular diameter: 15.2"
Status: near western quadrature

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

赤经: 18h50m51s
赤纬: -22°33'31"

Uranus

Fair
视星等: 5.8
星座: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

赤经: 00h43m12s
赤纬: +03°54'39"

Neptune

Fair
视星等: 7.9
星座: Virgo
Angular diameter: 2.3"
Status: near eastern quadrature

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

赤经: 10h31m19s
赤纬: +10°02'54"

Moon

Excellent
视星等: -12.7
星座: Libra
Angular diameter: 12396.8"
Status: Moon illumination 26.7%

Observation tip: Moon illumination 26.7%; good for observing lunar surface detail

赤经: 13h14m37s
赤纬: -07°43'36"