February 1990 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

23 合計天文イベント、含む 4 月相と 1 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

February 1990 mid-month observing conditions

Mercury

Excellent
見かけの等級: -0.2
星座: Aquarius
Angular diameter: 5.6"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

赤経: 20h26m39s
赤緯: -20°17'34"

Venus

Excellent
見かけの等級: -4.9
星座: Capricornus
Angular diameter: 45.8"
Status: near greatest eastern 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: 19h29m42s
赤緯: -15°04'36"

Mars

Excellent
見かけの等級: 1.3
星座: Capricornus
Angular diameter: 4.6"
Status: near eastern quadrature

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

赤経: 18h51m54s
赤緯: -23°28'48"

Jupiter

Excellent
見かけの等級: -2.5
星座: Cancer
Angular diameter: 43.4"
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: 06h04m13s
赤緯: +23°25'42"

Saturn

Excellent
見かけの等級: 0.6
星座: Capricornus
Angular diameter: 15.4"
Status: near eastern quadrature

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

赤経: 19h29m33s
赤緯: -21°35'59"

Uranus

Fair
見かけの等級: 5.8
星座: Capricornus
Angular diameter: 3.5"
Status: near eastern quadrature

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

赤経: 18h35m49s
赤緯: -23°28'06"

Neptune

Fair
見かけの等級: 7.9
星座: Capricornus
Angular diameter: 2.2"
Status: near eastern quadrature

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

赤経: 18h58m45s
赤緯: -21°54'13"

Moon

Excellent
見かけの等級: -12.7
星座: Libra
Angular diameter: 11544.9"
Status: Moon illumination 75.2%

Observation tip: Moon illumination 75.2%; good for observing lunar surface detail

赤経: 13h27m59s
赤緯: -14°32'07"