April 1930 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

26 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 1930 mid-month observing conditions

Mercury

Excellent
見かけの等級: -1.2
星座: Taurus
Angular diameter: 5.8"
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: 02h22m25s
赤緯: +15°32'03"

Venus

Excellent
見かけの等級: -3.9
星座: Taurus
Angular diameter: 10.3"
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: 02h34m28s
赤緯: +14°49'44"

Mars

Excellent
見かけの等級: 1.2
星座: Pisces
Angular diameter: 4.4"
Status: near eastern quadrature

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

赤経: 23h34m09s
赤緯: -04°04'42"

Jupiter

Excellent
見かけの等級: -2.0
星座: Gemini
Angular diameter: 34.7"
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: 04h51m28s
赤緯: +22°10'20"

Saturn

Excellent
見かけの等級: 0.4
星座: Capricornus
Angular diameter: 17.0"
Status: near eastern quadrature

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

赤経: 18h51m14s
赤緯: -22°11'05"

Uranus

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

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

赤経: 00h45m27s
赤緯: +04°10'43"

Neptune

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

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

赤経: 10h13m07s
赤緯: +11°44'54"

Moon

Excellent
見かけの等級: -12.7
星座: Scorpius
Angular diameter: 12165.7"
Status: Moon illumination 96.3%

Observation tip: Moon illumination 96.3%; good for observing lunar surface detail

赤経: 14h54m24s
赤緯: -17°57'38"