December 2016 天象

观测地点:Beijing (39.904°, 116.407°)

月度天象概览

21 天文事件合计,包括 4 月相和 3 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 2016 mid-month observing conditions

Mercury

Excellent
视星等: -0.2
星座: Capricornus
Angular diameter: 7.3"
Status: near superior 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: 18h59m25s
赤纬: -24°10'34"

Venus

Excellent
视星等: -4.2
星座: Aquarius
Angular diameter: 18.7"
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

赤经: 20h46m12s
赤纬: -20°17'17"

Mars

Excellent
视星等: 0.7
星座: Aquarius
Angular diameter: 6.1"
Status: near western quadrature

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

赤经: 21h57m17s
赤纬: -13°43'13"

Jupiter

Excellent
视星等: -1.8
星座: Libra
Angular diameter: 33.9"
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: 13h12m03s
赤纬: -06°18'43"

Saturn

Excellent
视星等: 0.4
星座: Sagittarius
Angular diameter: 15.1"
Status: near eastern quadrature

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

赤经: 17h14m17s
赤纬: -21°43'20"

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: 01h17m12s
赤纬: +07°29'32"

Neptune

Fair
视星等: 7.8
星座: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

赤经: 22h45m15s
赤纬: -08°49'57"

Moon

Excellent
视星等: -12.7
星座: Cancer
Angular diameter: 12844.1"
Status: Moon illumination 98.4%

Observation tip: Moon illumination 98.4%; good for observing lunar surface detail

赤经: 06h31m10s
赤纬: +18°55'49"