September 1990 Gökyüzü Olayları

Observer Location:Beijing (39.904°, 116.407°)

Gezegenlere Genel Bakış

24 sky events total, including 4 moon phases and 2 planetary events.

Gökyüzü Olayları

All times are in local time (Asia/Shanghai)

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

Planetary outlook

September 1990 mid-month observing conditions

Mercury

Good
Apparent magnitude: 2.0
Takımyıldız: Virgo
Angular diameter: 9.3"
Status: near greatest eastern elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 10h43m55s
Gerilim: +06°15'59"

Venus

Excellent
Apparent magnitude: -3.9
Takımyıldız: 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

Right ascension: 10h46m11s
Gerilim: +09°15'02"

Mars

Excellent
Apparent magnitude: -0.7
Takımyıldız: Gemini
Angular diameter: 12.1"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Right ascension: 04h19m58s
Gerilim: +19°56'29"

Jupiter

Excellent
Apparent magnitude: -1.9
Takımyıldız: Leo
Angular diameter: 33.5"
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

Right ascension: 08h31m58s
Gerilim: +19°13'13"

Saturn

Excellent
Apparent magnitude: 0.4
Takımyıldız: Capricornus
Angular diameter: 17.5"
Status: near western quadrature

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

Right ascension: 19h21m16s
Gerilim: -22°08'36"

Uranus

Fair
Apparent magnitude: 5.7
Takımyıldız: Capricornus
Angular diameter: 3.7"
Status: near western quadrature

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

Right ascension: 18h24m27s
Gerilim: -23°38'52"

Neptune

Fair
Apparent magnitude: 7.8
Takımyıldız: Capricornus
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 18h51m04s
Gerilim: -22°04'33"

Moon

Excellent
Apparent magnitude: -12.7
Takımyıldız: Leo
Angular diameter: 12346.7"
Status: Moon illumination 17.6%

Observation tip: Moon illumination 17.6%; good for observing lunar surface detail

Right ascension: 08h18m51s
Gerilim: +20°00'17"