April 2031 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 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

April 2031 mid-month observing conditions

Mercury

Good
見かけの等級: 2.2
星座: Aries
Angular diameter: 11.0"
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: 00h30m33s
赤緯: +03°24'55"

Venus

Excellent
見かけの等級: -4.1
星座: Gemini
Angular diameter: 15.4"
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: 04h10m31s
赤緯: +22°51'53"

Mars

Excellent
見かけの等級: -1.3
星座: Scorpius
Angular diameter: 15.0"
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: 15h10m57s
赤緯: -16°28'51"

Jupiter

Excellent
見かけの等級: -2.3
星座: Sagittarius
Angular diameter: 41.2"
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: 17h55m35s
赤緯: -22°53'55"

Saturn

Excellent
見かけの等級: 0.1
星座: Gemini
Angular diameter: 17.0"
Status: near western quadrature

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

赤経: 04h19m04s
赤緯: +19°48'18"

Uranus

Fair
見かけの等級: 5.7
星座: Gemini
Angular diameter: 3.6"
Status: near western quadrature

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

赤経: 05h15m46s
赤緯: +23°09'05"

Neptune

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

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

赤経: 00h52m01s
赤緯: +03°56'50"

Moon

Excellent
見かけの等級: -12.7
星座: Aquarius
Angular diameter: 12525.2"
Status: Moon illumination 44.9%

Observation tip: Moon illumination 44.9%; good for observing lunar surface detail

赤経: 20h08m13s
赤緯: -15°27'12"