January 1917 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 4 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

January 1917 mid-month observing conditions

Mercury

Good
見かけの等級: 2.5
星座: Aquarius
Angular diameter: 9.5"
Status: near superior conjunction

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

赤経: 20h21m09s
赤緯: -17°14'45"

Venus

Excellent
見かけの等級: -3.9
星座: Sagittarius
Angular diameter: 11.2"
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: 17h57m34s
赤緯: -22°50'56"

Mars

Excellent
見かけの等級: 1.1
星座: Aquarius
Angular diameter: 4.0"
Status: near western quadrature

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

赤経: 20h27m34s
赤緯: -20°15'04"

Jupiter

Excellent
見かけの等級: -2.4
星座: Aries
Angular diameter: 40.8"
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: 01h40m01s
赤緯: +09°07'12"

Saturn

Excellent
見かけの等級: -0.3
星座: Cancer
Angular diameter: 20.6"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

赤経: 07h57m55s
赤緯: +20°53'21"

Uranus

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

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

赤経: 21h23m44s
赤緯: -15°59'58"

Neptune

Fair
見かけの等級: 7.8
星座: Leo
Angular diameter: 2.4"
Status: near eastern quadrature

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

赤経: 08h24m03s
赤緯: +19°05'25"

Moon

Excellent
見かけの等級: -12.7
星座: Libra
Angular diameter: 11728.1"
Status: Moon illumination 64.8%

Observation tip: Moon illumination 64.8%; good for observing lunar surface detail

赤経: 12h17m55s
赤緯: -07°34'24"