May 2009 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

20 合計天文イベント、含む 5 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

May 2009 mid-month observing conditions

Mercury

Fair
見かけの等級: 5.3
星座: Taurus
Angular diameter: 11.9"
Status: near superior conjunction

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

赤経: 03h49m09s
赤緯: +20°06'25"

Venus

Excellent
見かけの等級: -4.7
星座: Aries
Angular diameter: 31.6"
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: 00h40m16s
赤緯: +03°39'46"

Mars

Excellent
見かけの等級: 1.2
星座: Aries
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: 01h05m12s
赤緯: +05°47'13"

Jupiter

Excellent
見かけの等級: -2.3
星座: Aquarius
Angular diameter: 39.5"
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: 21h52m03s
赤緯: -13°42'32"

Saturn

Excellent
見かけの等級: 0.8
星座: Virgo
Angular diameter: 18.5"
Status: near western quadrature

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

赤経: 11h07m50s
赤緯: +07°57'03"

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: 23h45m33s
赤緯: -02°22'26"

Neptune

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

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

赤経: 21h55m09s
赤緯: -13°04'18"

Moon

Excellent
見かけの等級: -12.7
星座: Aquarius
Angular diameter: 11503.3"
Status: Moon illumination 71.5%

Observation tip: Moon illumination 71.5%; good for observing lunar surface detail

赤経: 20h04m51s
赤緯: -20°39'56"