December 2008 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

24 合計天文イベント、含む 4 月相と 1 惑星イベント。

毎日の天文現象

すべての時刻は現地時間 (Asia/Shanghai)

Group 日付 日の出/日の入り 月の出/月の入り 月相 天文現象

Planetary outlook

December 2008 mid-month observing conditions

Mercury

Excellent
見かけの等級: -0.8
星座: Capricornus
Angular diameter: 4.9"
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

赤経: 18h17m51s
赤緯: -25°29'39"

Venus

Excellent
見かけの等級: -4.2
星座: Aquarius
Angular diameter: 18.3"
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

赤経: 20h44m37s
赤緯: -20°23'20"

Mars

Excellent
見かけの等級: 1.2
星座: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

赤経: 17h19m56s
赤緯: -23°40'09"

Jupiter

Excellent
見かけの等級: -2.0
星座: Capricornus
Angular diameter: 33.2"
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

赤経: 19h48m32s
赤緯: -21°29'46"

Saturn

Excellent
見かけの等級: 0.9
星座: Virgo
Angular diameter: 17.9"
Status: near eastern quadrature

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

赤経: 11h31m55s
赤緯: +05°10'42"

Uranus

Fair
見かけの等級: 5.9
星座: Pisces
Angular diameter: 3.5"
Status: near western quadrature

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

赤経: 23h20m15s
赤緯: -05°06'26"

Neptune

Fair
見かけの等級: 7.8
星座: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

赤経: 21h37m50s
赤緯: -14°31'02"

Moon

Excellent
見かけの等級: -12.7
星座: Cancer
Angular diameter: 12894.2"
Status: Moon illumination 92.1%

Observation tip: Moon illumination 92.1%; good for observing lunar surface detail

赤経: 07h53m14s
赤緯: +22°10'23"