September 1998 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

21 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

September 1998 mid-month observing conditions

Mercury

Excellent
見かけの等級: -1.3
星座: Virgo
Angular diameter: 5.3"
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: 10h57m56s
赤緯: +08°34'00"

Venus

Excellent
見かけの等級: -3.9
星座: Virgo
Angular diameter: 10.0"
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: 10h48m42s
赤緯: +09°00'23"

Mars

Excellent
見かけの等級: 1.7
星座: Leo
Angular diameter: 4.0"
Status: near eastern quadrature

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

赤経: 09h15m25s
赤緯: +17°08'50"

Jupiter

Excellent
見かけの等級: -2.9
星座: Pisces
Angular diameter: 49.7"
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: 23h37m31s
赤緯: -04°07'47"

Saturn

Excellent
見かけの等級: 0.2
星座: Taurus
Angular diameter: 19.5"
Status: near eastern quadrature

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

赤経: 02h06m20s
赤緯: +09°55'10"

Uranus

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

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

赤経: 20h47m33s
赤緯: -18°35'09"

Neptune

Fair
見かけの等級: 7.8
星座: Aquarius
Angular diameter: 2.3"
Status: near western quadrature

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

赤経: 20h06m38s
赤緯: -19°54'38"

Moon

Excellent
見かけの等級: -12.7
星座: Cancer
Angular diameter: 12136.6"
Status: Moon illumination 29.8%

Observation tip: Moon illumination 29.8%; good for observing lunar surface detail

赤経: 07h07m28s
赤緯: +18°45'19"