February 1981 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

22 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

February 1981 mid-month observing conditions

Mercury

Good
見かけの等級: 3.9
星座: Pisces
Angular diameter: 10.1"
Status: near superior conjunction

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

赤経: 22h08m37s
赤緯: -07°41'09"

Venus

Excellent
見かけの等級: -3.9
星座: Aquarius
Angular diameter: 10.1"
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: 21h04m46s
赤緯: -17°41'45"

Mars

Excellent
見かけの等級: 1.1
星座: Pisces
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: 22h33m59s
赤緯: -10°06'07"

Jupiter

Excellent
見かけの等級: -2.3
星座: Libra
Angular diameter: 42.1"
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: 12h37m56s
赤緯: -02°27'11"

Saturn

Excellent
見かけの等級: 0.6
星座: Libra
Angular diameter: 18.9"
Status: near eastern quadrature

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

赤経: 12h37m35s
赤緯: -01°16'02"

Uranus

Fair
見かけの等級: 5.6
星座: Scorpius
Angular diameter: 3.7"
Status: near eastern quadrature

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

赤経: 15h51m19s
赤緯: -19°55'22"

Neptune

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

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

赤経: 17h35m53s
赤緯: -22°00'35"

Moon

Excellent
見かけの等級: -12.7
星座: Cancer
Angular diameter: 12299.5"
Status: Moon illumination 83.4%

Observation tip: Moon illumination 83.4%; good for observing lunar surface detail

赤経: 06h34m35s
赤緯: +20°20'15"