December 2045 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

22 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 2045 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.5
กลุ่มดาว: Sagittarius
Angular diameter: 5.4"
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: 16h18m12s
เดคลิเนชัน: -20°17'41"

Venus

Excellent
Apparent magnitude: -4.7
กลุ่มดาว: Capricornus
Angular diameter: 54.7"
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: 19h21m59s
เดคลิเนชัน: -22°41'15"

Mars

Excellent
Apparent magnitude: 1.2
กลุ่มดาว: Libra
Angular diameter: 5.8"
Status: near eastern quadrature

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

Right ascension: 12h30m46s
เดคลิเนชัน: -01°17'06"

Jupiter

Excellent
Apparent magnitude: -2.3
กลุ่มดาว: Pisces
Angular diameter: 38.0"
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: 22h33m06s
เดคลิเนชัน: -10°20'36"

Saturn

Excellent
Apparent magnitude: 0.5
กลุ่มดาว: Sagittarius
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: 16h57m00s
เดคลิเนชัน: -21°11'48"

Uranus

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

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

Right ascension: 10h15m36s
เดคลิเนชัน: +11°36'40"

Neptune

Fair
Apparent magnitude: 7.7
กลุ่มดาว: Taurus
Angular diameter: 2.4"
Status: near western quadrature

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

Right ascension: 02h51m18s
เดคลิเนชัน: +14°31'34"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Pisces
Angular diameter: 11498.4"
Status: Moon illumination 35.7%

Observation tip: Moon illumination 35.7%; good for observing lunar surface detail

Right ascension: 22h30m47s
เดคลิเนชัน: -07°16'44"