January 1990 Gökyüzü Olayları

Observer Location:Beijing (39.904°, 116.407°)

Gezegenlere Genel Bakış

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

Gökyüzü Olayları

All times are in local time (Asia/Shanghai)

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

Planetary outlook

January 1990 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 1.7
Takımyıldız: Capricornus
Angular diameter: 9.6"
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: 18h49m43s
Gerilim: -19°33'09"

Venus

Excellent
Apparent magnitude: -4.3
Takımyıldız: Aquarius
Angular diameter: 62.1"
Status: near superior 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: 20h08m02s
Gerilim: -14°46'19"

Mars

Excellent
Apparent magnitude: 1.5
Takımyıldız: Sagittarius
Angular diameter: 4.2"
Status: near eastern quadrature

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

Right ascension: 17h14m29s
Gerilim: -23°13'00"

Jupiter

Excellent
Apparent magnitude: -2.7
Takımyıldız: Cancer
Angular diameter: 46.6"
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: 06h14m55s
Gerilim: +23°18'50"

Saturn

Excellent
Apparent magnitude: 0.5
Takımyıldız: Capricornus
Angular diameter: 15.1"
Status: near eastern quadrature

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

Right ascension: 19h14m39s
Gerilim: -22°03'13"

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: 18h28m44s
Gerilim: -23°33'03"

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: 18h54m11s
Gerilim: -22°00'29"

Moon

Excellent
Apparent magnitude: -12.7
Takımyıldız: Virgo
Angular diameter: 11885.8"
Status: Moon illumination 84.4%

Observation tip: Moon illumination 84.4%; good for observing lunar surface detail

Right ascension: 10h47m20s
Gerilim: +05°19'40"