July 1917 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

24 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

July 1917 mid-month observing conditions

Mercury

Excellent
見かけの等級: -1.9
星座: Cancer
Angular diameter: 5.0"
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: 07h47m32s
赤緯: +22°49'49"

Venus

Excellent
見かけの等級: -3.9
星座: Leo
Angular diameter: 10.7"
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: 09h04m47s
赤緯: +18°20'32"

Mars

Excellent
見かけの等級: 1.5
星座: Gemini
Angular diameter: 4.1"
Status: near eastern quadrature

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

赤経: 05h21m02s
赤緯: +23°23'54"

Jupiter

Excellent
見かけの等級: -2.1
星座: Gemini
Angular diameter: 35.1"
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: 04h04m34s
赤緯: +19°57'25"

Saturn

Excellent
見かけの等級: 0.3
星座: Leo
Angular diameter: 16.5"
Status: near western quadrature

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

赤経: 08h19m40s
赤緯: +20°00'34"

Uranus

Fair
見かけの等級: 5.8
星座: Aquarius
Angular diameter: 3.7"
Status: near eastern quadrature

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

赤経: 21h42m00s
赤緯: -14°35'43"

Neptune

Fair
見かけの等級: 8.0
星座: Leo
Angular diameter: 2.2"
Status: near western quadrature

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

赤経: 08h25m36s
赤緯: +19°03'02"

Moon

Excellent
見かけの等級: -12.7
星座: Gemini
Angular diameter: 11930.5"
Status: Moon illumination 16.0%

Observation tip: Moon illumination 16.0%; good for observing lunar surface detail

赤経: 04h09m26s
赤緯: +24°10'20"