December 1904 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 4 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 1904 mid-month observing conditions

Mercury

Excellent
视星等: -0.5
星座: Capricornus
Angular diameter: 6.8"
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: 18h57m22s
赤纬: -24°34'13"

Venus

Excellent
视星等: -4.1
星座: Aquarius
Angular diameter: 14.7"
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: 20h18m51s
赤纬: -21°46'41"

Mars

Excellent
视星等: 1.3
星座: Libra
Angular diameter: 5.3"
Status: near eastern quadrature

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

赤经: 12h54m36s
赤纬: -04°04'34"

Jupiter

Excellent
视星等: -2.6
星座: 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

赤经: 01h16m50s
赤纬: +06°38'37"

Saturn

Excellent
视星等: 0.8
星座: Aquarius
Angular diameter: 16.0"
Status: near western quadrature

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

赤经: 21h19m00s
赤纬: -16°50'50"

Uranus

Fair
视星等: 5.8
星座: Sagittarius
Angular diameter: 3.5"
Status: near western quadrature

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

赤经: 17h58m32s
赤纬: -23°39'25"

Neptune

Fair
视星等: 7.8
星座: Cancer
Angular diameter: 2.4"
Status: near eastern quadrature

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

赤经: 06h30m59s
赤纬: +22°13'38"

Moon

Excellent
视星等: -12.7
星座: Pisces
Angular diameter: 11508.4"
Status: Moon illumination 50.9%

Observation tip: Moon illumination 50.9%; good for observing lunar surface detail

赤经: 23h37m26s
赤纬: -03°26'28"