December 1947 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

25 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 1947 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.7
กลุ่มดาว: Sagittarius
Angular diameter: 4.9"
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: 16h39m23s
เดคลิเนชัน: -22°08'25"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Capricornus
Angular diameter: 11.3"
Status: near greatest western 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: 19h18m08s
เดคลิเนชัน: -23°47'32"

Mars

Excellent
Apparent magnitude: 0.2
กลุ่มดาว: Virgo
Angular diameter: 9.0"
Status: near eastern quadrature

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

Right ascension: 10h28m24s
เดคลิเนชัน: +12°31'45"

Jupiter

Excellent
Apparent magnitude: -1.8
กลุ่มดาว: Sagittarius
Angular diameter: 31.3"
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: 16h39m47s
เดคลิเนชัน: -21°36'00"

Saturn

Excellent
Apparent magnitude: 0.3
กลุ่มดาว: Leo
Angular diameter: 19.2"
Status: near eastern quadrature

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

Right ascension: 09h41m09s
เดคลิเนชัน: +15°00'36"

Uranus

Fair
Apparent magnitude: 5.5
กลุ่มดาว: Gemini
Angular diameter: 3.9"
Status: near eastern quadrature

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

Right ascension: 05h34m47s
เดคลิเนชัน: +23°28'02"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Libra
Angular diameter: 2.2"
Status: near eastern quadrature

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

Right ascension: 12h49m10s
เดคลิเนชัน: -03°37'45"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Capricornus
Angular diameter: 11505.0"
Status: Moon illumination 5.7%

Observation tip: Moon illumination 5.7%; good for observing lunar surface detail

Right ascension: 19h26m58s
เดคลิเนชัน: -26°19'15"