December 1928 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 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 1928 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: 17h19m40s
เดคลิเนชัน: -24°13'55"

Venus

Excellent
Apparent magnitude: -4.1
กลุ่มดาว: Aquarius
Angular diameter: 15.4"
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: 20h25m28s
เดคลิเนชัน: -21°27'22"

Mars

Excellent
Apparent magnitude: -1.7
กลุ่มดาว: Cancer
Angular diameter: 16.0"
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: 06h09m09s
เดคลิเนชัน: +26°25'38"

Jupiter

Excellent
Apparent magnitude: -2.7
กลุ่มดาว: Aries
Angular diameter: 45.8"
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: 01h55m55s
เดคลิเนชัน: +10°28'20"

Saturn

Excellent
Apparent magnitude: 0.4
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: 17h24m12s
เดคลิเนชัน: -22°00'32"

Uranus

Fair
Apparent magnitude: 5.9
กลุ่มดาว: Aries
Angular diameter: 3.5"
Status: near western quadrature

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

Right ascension: 00h13m53s
เดคลิเนชัน: +00°43'09"

Neptune

Fair
Apparent magnitude: 7.9
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: 10h14m21s
เดคลิเนชัน: +11°32'06"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Capricornus
Angular diameter: 11561.1"
Status: Moon illumination 7.0%

Observation tip: Moon illumination 7.0%; good for observing lunar surface detail

Right ascension: 19h43m04s
เดคลิเนชัน: -25°34'51"