December 1945 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

24 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 1945 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 0.8
กลุ่มดาว: Sagittarius
Angular diameter: 8.8"
Status: near greatest eastern elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 16h23m57s
เดคลิเนชัน: -18°43'14"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Sagittarius
Angular diameter: 10.0"
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: 16h38m10s
เดคลิเนชัน: -21°34'35"

Mars

Excellent
Apparent magnitude: -0.9
กลุ่มดาว: Leo
Angular diameter: 13.2"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Right ascension: 08h22m22s
เดคลิเนชัน: +22°42'23"

Jupiter

Excellent
Apparent magnitude: -1.8
กลุ่มดาว: Libra
Angular diameter: 33.5"
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: 13h25m01s
เดคลิเนชัน: -07°37'53"

Saturn

Excellent
Apparent magnitude: -0.2
กลุ่มดาว: Cancer
Angular diameter: 20.3"
Status: near eastern quadrature

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

Right ascension: 07h41m42s
เดคลิเนชัน: +21°15'10"

Uranus

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

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

Right ascension: 04h55m23s
เดคลิเนชัน: +22°38'24"

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: 12h33m14s
เดคลิเนชัน: -02°00'34"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Aries
Angular diameter: 12731.5"
Status: Moon illumination 77.5%

Observation tip: Moon illumination 77.5%; good for observing lunar surface detail

Right ascension: 01h43m32s
เดคลิเนชัน: +05°37'51"