December 1901 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

20 sky events total, including 4 moon phases and 3 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

December 1901 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.7
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: 16h42m58s
เดคลิเนชัน: -22°22'59"

Venus

Excellent
Apparent magnitude: -4.6
กลุ่มดาว: Aquarius
Angular diameter: 27.9"
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: 20h49m06s
เดคลิเนชัน: -19°57'53"

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: 19h09m49s
เดคลิเนชัน: -23°35'38"

Jupiter

Excellent
Apparent magnitude: -1.9
กลุ่มดาว: Capricornus
Angular diameter: 32.7"
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: 19h16m03s
เดคลิเนชัน: -22°32'50"

Saturn

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Capricornus
Angular diameter: 15.2"
Status: near western quadrature

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

Right ascension: 19h08m13s
เดคลิเนชัน: -22°19'43"

Uranus

Fair
Apparent magnitude: 5.7
กลุ่มดาว: Sagittarius
Angular diameter: 3.5"
Status: near eastern quadrature

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

Right ascension: 17h05m18s
เดคลิเนชัน: -22°54'03"

Neptune

Fair
Apparent magnitude: 7.8
กลุ่มดาว: Cancer
Angular diameter: 2.4"
Status: near eastern quadrature

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

Right ascension: 06h01m17s
เดคลิเนชัน: +22°15'01"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Aquarius
Angular diameter: 11808.8"
Status: Moon illumination 14.0%

Observation tip: Moon illumination 14.0%; good for observing lunar surface detail

Right ascension: 20h27m56s
เดคลิเนชัน: -13°49'31"