December 2099 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

24 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 2099 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.2
กลุ่มดาว: Sagittarius
Angular diameter: 4.6"
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: 17h20m12s
เดคลิเนชัน: -24°07'25"

Venus

Excellent
Apparent magnitude: -4.0
กลุ่มดาว: Aquarius
Angular diameter: 13.6"
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: 20h08m18s
เดคลิเนชัน: -22°12'22"

Mars

Excellent
Apparent magnitude: -0.8
กลุ่มดาว: Aries
Angular diameter: 12.9"
Status: near western quadrature

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

Right ascension: 01h26m14s
เดคลิเนชัน: +09°37'22"

Jupiter

Excellent
Apparent magnitude: -1.8
กลุ่มดาว: Libra
Angular diameter: 34.0"
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: 13h12m14s
เดคลิเนชัน: -06°20'04"

Saturn

Excellent
Apparent magnitude: 0.8
กลุ่มดาว: Libra
Angular diameter: 16.4"
Status: near eastern quadrature

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

Right ascension: 13h34m01s
เดคลิเนชัน: -07°16'27"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

Right ascension: 01h06m35s
เดคลิเนชัน: +06°23'06"

Neptune

Fair
Apparent magnitude: 7.8
กลุ่มดาว: Virgo
Angular diameter: 2.3"
Status: near eastern quadrature

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

Right ascension: 11h14m52s
เดคลิเนชัน: +05°52'45"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Aquarius
Angular diameter: 12027.0"
Status: Moon illumination 10.8%

Observation tip: Moon illumination 10.8%; good for observing lunar surface detail

Right ascension: 20h18m31s
เดคลิเนชัน: -23°34'56"