December 2012 天象

观测地点:Beijing (39.904°, 116.407°)

月度天象概览

19 天文事件合计,包括 4 月相和 2 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 2012 mid-month observing conditions

Mercury

Excellent
视星等: -0.5
星座: Sagittarius
Angular diameter: 5.5"
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

赤经: 16h14m38s
赤纬: -19°58'46"

Venus

Excellent
视星等: -3.9
星座: Scorpius
Angular diameter: 11.3"
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

赤经: 15h46m19s
赤纬: -18°31'53"

Mars

Excellent
视星等: 1.2
星座: Capricornus
Angular diameter: 4.3"
Status: near western quadrature

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

赤经: 19h33m15s
赤纬: -22°53'14"

Jupiter

Excellent
视星等: -2.8
星座: Gemini
Angular diameter: 48.1"
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

赤经: 04h32m39s
赤纬: +21°08'53"

Saturn

Excellent
视星等: 0.7
星座: Scorpius
Angular diameter: 15.9"
Status: near eastern quadrature

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

赤经: 14h25m47s
赤纬: -12°01'21"

Uranus

Fair
视星等: 5.9
星座: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

赤经: 00h18m04s
赤纬: +01°10'31"

Neptune

Fair
视星等: 7.8
星座: Pisces
Angular diameter: 2.2"
Status: near western quadrature

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

赤经: 22h11m50s
赤纬: -11°48'08"

Moon

Excellent
视星等: -12.7
星座: Capricornus
Angular diameter: 12884.1"
Status: Moon illumination 4.1%

Observation tip: Moon illumination 4.1%; good for observing lunar surface detail

赤经: 19h09m33s
赤纬: -18°23'31"