April 1909 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

25 合計天文イベント、含む 4 月相と 3 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 1909 mid-month observing conditions

Mercury

Excellent
見かけの等級: -1.3
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: 01h04m13s
赤緯: +05°13'09"

Venus

Excellent
見かけの等級: -3.9
星座: Aries
Angular diameter: 9.7"
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: 01h18m43s
赤緯: +06°58'37"

Mars

Excellent
見かけの等級: 0.4
星座: Aquarius
Angular diameter: 7.5"
Status: near eastern quadrature

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

赤経: 20h24m05s
赤緯: -20°31'59"

Jupiter

Excellent
見かけの等級: -2.3
星座: Virgo
Angular diameter: 41.8"
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: 10h29m11s
赤緯: +10°57'12"

Saturn

Excellent
見かけの等級: 0.8
星座: Aries
Angular diameter: 16.0"
Status: near eastern quadrature

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

赤経: 00h56m51s
赤緯: +03°40'12"

Uranus

Fair
見かけの等級: 5.8
星座: Capricornus
Angular diameter: 3.6"
Status: near eastern quadrature

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

赤経: 19h31m14s
赤緯: -22°14'26"

Neptune

Fair
見かけの等級: 7.9
星座: Cancer
Angular diameter: 2.3"
Status: near western quadrature

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

赤経: 07h02m16s
赤緯: +21°56'32"

Moon

Excellent
見かけの等級: -12.7
星座: Aquarius
Angular diameter: 12563.8"
Status: Moon illumination 34.7%

Observation tip: Moon illumination 34.7%; good for observing lunar surface detail

赤経: 21h04m22s
赤緯: -21°04'35"