April 2001 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 2001 mid-month observing conditions

Mercury

Excellent
見かけの等級: -1.2
星座: Aries
Angular diameter: 5.1"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

赤経: 01h01m47s
赤緯: +04°48'23"

Venus

Excellent
見かけの等級: -4.5
星座: Pisces
Angular diameter: 52.4"
Status: near greatest eastern 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: 23h59m09s
赤緯: +05°30'02"

Mars

Excellent
見かけの等級: -0.6
星座: Sagittarius
Angular diameter: 12.0"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

赤経: 17h38m53s
赤緯: -23°26'27"

Jupiter

Excellent
見かけの等級: -2.0
星座: Gemini
Angular diameter: 34.4"
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: 04h34m38s
赤緯: +21°32'51"

Saturn

Excellent
見かけの等級: 0.2
星座: Taurus
Angular diameter: 16.8"
Status: near western quadrature

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

赤経: 03h50m00s
赤緯: +18°16'31"

Uranus

Fair
見かけの等級: 5.9
星座: Aquarius
Angular diameter: 3.4"
Status: near eastern quadrature

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

赤経: 21h46m21s
赤緯: -14°09'57"

Neptune

Fair
見かけの等級: 7.8
星座: Aquarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

赤経: 20h43m54s
赤緯: -17°57'49"

Moon

Excellent
見かけの等級: -12.7
星座: Capricornus
Angular diameter: 11595.3"
Status: Moon illumination 56.3%

Observation tip: Moon illumination 56.3%; good for observing lunar surface detail

赤経: 19h18m29s
赤緯: -22°58'43"