December 2004 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

23 合計天文イベント、含む 4 月相と 2 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 2004 mid-month observing conditions

Mercury

Good
見かけの等級: 2.1
星座: Sagittarius
Angular diameter: 9.5"
Status: near greatest eastern elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

赤経: 16h47m18s
赤緯: -19°42'16"

Venus

Excellent
見かけの等級: -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

赤経: 15h43m40s
赤緯: -18°21'29"

Mars

Excellent
見かけの等級: 1.6
星座: Scorpius
Angular diameter: 4.0"
Status: near eastern quadrature

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

赤経: 15h21m35s
赤緯: -18°07'59"

Jupiter

Excellent
見かけの等級: -1.9
星座: Libra
Angular diameter: 34.3"
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

赤経: 12h58m20s
赤緯: -04°53'44"

Saturn

Excellent
見かけの等級: -0.2
星座: Cancer
Angular diameter: 20.2"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

赤経: 07h52m32s
赤緯: +20°52'47"

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: 22h22m10s
赤緯: -10°59'03"

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: 21h03m18s
赤緯: -16°54'14"

Moon

Excellent
見かけの等級: -12.7
星座: Aquarius
Angular diameter: 12852.9"
Status: Moon illumination 12.8%

Observation tip: Moon illumination 12.8%; good for observing lunar surface detail

赤経: 20h34m15s
赤緯: -23°58'45"