December 1980 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

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

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

December 1980 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.8
กลุ่มดาว: Sagittarius
Angular diameter: 4.8"
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: 16h50m48s
เดคลิเนชัน: -22°44'00"

Venus

Excellent
Apparent magnitude: -4.0
กลุ่มดาว: Scorpius
Angular diameter: 11.6"
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: 15h35m53s
เดคลิเนชัน: -17°49'02"

Mars

Excellent
Apparent magnitude: 1.2
กลุ่มดาว: Capricornus
Angular diameter: 4.2"
Status: near western quadrature

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

Right ascension: 19h16m48s
เดคลิเนชัน: -23°23'41"

Jupiter

Excellent
Apparent magnitude: -1.9
กลุ่มดาว: Libra
Angular diameter: 35.2"
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: 12h30m54s
เดคลิเนชัน: -01°59'27"

Saturn

Excellent
Apparent magnitude: 0.9
กลุ่มดาว: Libra
Angular diameter: 17.1"
Status: near eastern quadrature

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

Right ascension: 12h35m37s
เดคลิเนชัน: -01°21'52"

Uranus

Fair
Apparent magnitude: 5.7
กลุ่มดาว: Scorpius
Angular diameter: 3.6"
Status: near eastern quadrature

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

Right ascension: 15h41m05s
เดคลิเนชัน: -19°22'52"

Neptune

Fair
Apparent magnitude: 8.0
กลุ่มดาว: Sagittarius
Angular diameter: 2.2"
Status: near eastern quadrature

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

Right ascension: 17h27m17s
เดคลิเนชัน: -21°55'34"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Pisces
Angular diameter: 12470.8"
Status: Moon illumination 49.3%

Observation tip: Moon illumination 49.3%; good for observing lunar surface detail

Right ascension: 23h36m41s
เดคลิเนชัน: -06°08'18"