February 1990 Gökyüzü Olayları

Observer Location:Beijing (39.904°, 116.407°)

Gezegenlere Genel Bakış

23 sky events total, including 4 moon phases and 1 planetary events.

Gökyüzü Olayları

All times are in local time (Asia/Shanghai)

Group Tarih Sunrise/Sunset Moonrise/Moonset Moon Phase Gökyüzü Olayları

Planetary outlook

February 1990 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.2
Takımyıldız: 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

Right ascension: 20h26m39s
Gerilim: -20°17'34"

Venus

Excellent
Apparent magnitude: -4.9
Takımyıldız: 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

Right ascension: 19h29m42s
Gerilim: -15°04'36"

Mars

Excellent
Apparent magnitude: 1.3
Takımyıldız: 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

Right ascension: 18h51m54s
Gerilim: -23°28'48"

Jupiter

Excellent
Apparent magnitude: -2.5
Takımyıldız: 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

Right ascension: 06h04m13s
Gerilim: +23°25'42"

Saturn

Excellent
Apparent magnitude: 0.6
Takımyıldız: 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

Right ascension: 19h29m33s
Gerilim: -21°35'59"

Uranus

Fair
Apparent magnitude: 5.8
Takımyıldız: Capricornus
Angular diameter: 3.5"
Status: near eastern quadrature

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

Right ascension: 18h35m49s
Gerilim: -23°28'06"

Neptune

Fair
Apparent magnitude: 7.9
Takımyıldız: Capricornus
Angular diameter: 2.2"
Status: near eastern quadrature

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

Right ascension: 18h58m45s
Gerilim: -21°54'13"

Moon

Excellent
Apparent magnitude: -12.7
Takımyıldız: Libra
Angular diameter: 11544.9"
Status: Moon illumination 75.2%

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

Right ascension: 13h27m59s
Gerilim: -14°32'07"