December 1904 天象

觀測地點:Beijing (39.904°, 116.407°)

每月天象事件總覽

22 天象事件總數,包括 4 月相與 4 行星事件。

每日天象事件

所有時間均為當地時間 (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
視星等: -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

赤經: 18h57m22s
赤緯: -24°34'13"

Venus

Excellent
視星等: -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

赤經: 20h18m51s
赤緯: -21°46'41"

Mars

Excellent
視星等: 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

赤經: 12h54m36s
赤緯: -04°04'34"

Jupiter

Excellent
視星等: -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

赤經: 01h16m50s
赤緯: +06°38'37"

Saturn

Excellent
視星等: 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

赤經: 21h19m00s
赤緯: -16°50'50"

Uranus

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

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

赤經: 17h58m32s
赤緯: -23°39'25"

Neptune

Fair
視星等: 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

赤經: 06h30m59s
赤緯: +22°13'38"

Moon

Excellent
視星等: -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

赤經: 23h37m26s
赤緯: -03°26'28"