December 2085 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

21 sky events total, including 5 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 2085 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.7
กลุ่มดาว: Sagittarius
Angular diameter: 4.9"
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: 16h41m48s
เดคลิเนชัน: -22°02'47"

Venus

Excellent
Apparent magnitude: -4.3
กลุ่มดาว: Capricornus
Angular diameter: 62.3"
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: 18h08m21s
เดคลิเนชัน: -22°54'15"

Mars

Excellent
Apparent magnitude: 1.5
กลุ่มดาว: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

Right ascension: 16h24m02s
เดคลิเนชัน: -21°45'02"

Jupiter

Excellent
Apparent magnitude: -2.4
กลุ่มดาว: Leo
Angular diameter: 42.3"
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: 09h22m03s
เดคลิเนชัน: +16°07'43"

Saturn

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Aries
Angular diameter: 18.3"
Status: near western quadrature

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

Right ascension: 00h41m29s
เดคลิเนชัน: +01°41'39"

Uranus

Fair
Apparent magnitude: 5.9
กลุ่มดาว: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

Right ascension: 21h41m55s
เดคลิเนชัน: -14°33'06"

Neptune

Fair
Apparent magnitude: 7.7
กลุ่มดาว: Leo
Angular diameter: 2.3"
Status: near eastern quadrature

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

Right ascension: 09h15m11s
เดคลิเนชัน: +15°59'55"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Scorpius
Angular diameter: 12140.5"
Status: Moon illumination 4.5%

Observation tip: Moon illumination 4.5%; good for observing lunar surface detail

Right ascension: 15h46m28s
เดคลิเนชัน: -22°02'57"