April 2003 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

20 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

April 2003 mid-month observing conditions

Mercury

Excellent
見かけの等級: -0.1
星座: Taurus
Angular diameter: 7.4"
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: 02h43m17s
赤緯: +18°33'28"

Venus

Excellent
見かけの等級: -3.9
星座: Pisces
Angular diameter: 12.5"
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: 23h32m32s
赤緯: -04°26'57"

Mars

Excellent
見かけの等級: 0.3
星座: Capricornus
Angular diameter: 8.3"
Status: near eastern quadrature

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

赤経: 19h51m45s
赤緯: -21°58'20"

Jupiter

Excellent
見かけの等級: -2.2
星座: Leo
Angular diameter: 39.4"
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: 08h43m36s
赤緯: +19°02'03"

Saturn

Excellent
見かけの等級: 0.1
星座: Gemini
Angular diameter: 17.5"
Status: near western quadrature

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

赤経: 05h36m11s
赤緯: +22°22'39"

Uranus

Fair
見かけの等級: 6.0
星座: Pisces
Angular diameter: 3.4"
Status: near eastern quadrature

Observation tip: A telescope is required; Binoculars or a telescope are recommended

赤経: 22h15m55s
赤緯: -11°32'48"

Neptune

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

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

赤経: 21h01m32s
赤緯: -16°54'50"

Moon

Excellent
見かけの等級: -12.7
星座: Libra
Angular diameter: 12859.4"
Status: Moon illumination 94.9%

Observation tip: Moon illumination 94.9%; good for observing lunar surface detail

赤経: 12h03m22s
赤緯: +04°35'08"