December 2025 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

22 sky events total, including 4 moon phases and 1 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

December 2025 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.5
กลุ่มดาว: Sagittarius
Angular diameter: 5.8"
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: 16h08m55s
เดคลิเนชัน: -19°25'18"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Sagittarius
Angular diameter: 9.8"
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: 17h07m03s
เดคลิเนชัน: -22°42'56"

Mars

Excellent
Apparent magnitude: 1.2
กลุ่มดาว: Sagittarius
Angular diameter: 3.9"
Status: near western quadrature

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

Right ascension: 17h58m57s
เดคลิเนชัน: -24°12'43"

Jupiter

Excellent
Apparent magnitude: -2.6
กลุ่มดาว: Cancer
Angular diameter: 45.5"
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: 07h41m01s
เดคลิเนชัน: +21°36'30"

Saturn

Excellent
Apparent magnitude: 1.0
กลุ่มดาว: Pisces
Angular diameter: 17.6"
Status: near western quadrature

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

Right ascension: 23h46m50s
เดคลิเนชัน: -03°57'01"

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: 03h45m14s
เดคลิเนชัน: +19°37'41"

Neptune

Fair
Apparent magnitude: 7.7
กลุ่มดาว: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 23h59m51s
เดคลิเนชัน: -01°28'47"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Libra
Angular diameter: 11517.9"
Status: Moon illumination 21.6%

Observation tip: Moon illumination 21.6%; good for observing lunar surface detail

Right ascension: 13h39m07s
เดคลิเนชัน: -14°07'16"