December 1942 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 sky events total, including 5 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 1942 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.8
กลุ่มดาว: Capricornus
Angular diameter: 4.8"
Status: near greatest western elongation

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 18h00m28s
เดคลิเนชัน: -25°22'55"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Sagittarius
Angular diameter: 9.8"
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: 17h57m02s
เดคลิเนชัน: -24°00'10"

Mars

Excellent
Apparent magnitude: 1.6
กลุ่มดาว: Scorpius
Angular diameter: 3.9"
Status: near eastern quadrature

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

Right ascension: 15h49m18s
เดคลิเนชัน: -19°58'22"

Jupiter

Excellent
Apparent magnitude: -2.6
กลุ่มดาว: Cancer
Angular diameter: 45.4"
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: 07h41m48s
เดคลิเนชัน: +21°36'22"

Saturn

Excellent
Apparent magnitude: -0.3
กลุ่มดาว: Gemini
Angular diameter: 20.5"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

Right ascension: 04h26m07s
เดคลิเนชัน: +19°44'50"

Uranus

Fair
Apparent magnitude: 5.6
กลุ่มดาว: Taurus
Angular diameter: 3.8"
Status: near western quadrature

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

Right ascension: 03h58m47s
เดคลิเนชัน: +20°22'06"

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: 12h09m16s
เดคลิเนชัน: +00°26'50"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Pisces
Angular diameter: 12192.2"
Status: Moon illumination 52.9%

Observation tip: Moon illumination 52.9%; good for observing lunar surface detail

Right ascension: 23h47m31s
เดคลิเนชัน: -03°57'53"