April 1923 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

22 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 1923 mid-month observing conditions

Mercury

Excellent
見かけの等級: -1.7
星座: Aries
Angular diameter: 5.2"
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: 01h55m02s
赤緯: +11°59'39"

Venus

Excellent
見かけの等級: -4.0
星座: Pisces
Angular diameter: 14.1"
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: 23h11m09s
赤緯: -06°27'53"

Mars

Excellent
見かけの等級: 1.6
星座: Taurus
Angular diameter: 4.1"
Status: near western quadrature

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

赤経: 03h47m27s
赤緯: +20°39'12"

Jupiter

Excellent
見かけの等級: -2.5
星座: Scorpius
Angular diameter: 44.0"
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: 14h57m58s
赤緯: -15°31'09"

Saturn

Excellent
見かけの等級: 0.4
星座: Libra
Angular diameter: 19.2"
Status: near western quadrature

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

赤経: 13h03m59s
赤緯: -03°49'46"

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: 23h08m43s
赤緯: -06°18'12"

Neptune

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

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

赤経: 09h11m47s
赤緯: +16°24'15"

Moon

Excellent
見かけの等級: -12.7
星座: Aries
Angular diameter: 11452.5"
Status: Moon illumination 1.5%

Observation tip: Moon illumination 1.5%; good for observing lunar surface detail

赤経: 00h40m32s
赤緯: +02°25'53"