January 1923 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

22 sky events total, including 4 moon phases and 2 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

January 1923 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.4
กลุ่มดาว: Aquarius
Angular diameter: 7.2"
Status: near superior 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: 21h00m38s
เดคลิเนชัน: -17°15'10"

Venus

Excellent
Apparent magnitude: -4.8
กลุ่มดาว: Sagittarius
Angular diameter: 32.2"
Status: near greatest eastern 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: 16h31m38s
เดคลิเนชัน: -17°27'45"

Mars

Excellent
Apparent magnitude: 0.9
กลุ่มดาว: Pisces
Angular diameter: 5.8"
Status: near western quadrature

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

Right ascension: 23h43m30s
เดคลิเนชัน: -02°18'07"

Jupiter

Excellent
Apparent magnitude: -1.9
กลุ่มดาว: Scorpius
Angular diameter: 34.5"
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: 14h52m46s
เดคลิเนชัน: -15°21'52"

Saturn

Excellent
Apparent magnitude: 0.7
กลุ่มดาว: Libra
Angular diameter: 17.5"
Status: near eastern quadrature

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

Right ascension: 13h17m19s
เดคลิเนชัน: -05°29'05"

Uranus

Fair
Apparent magnitude: 6.0
กลุ่มดาว: Pisces
Angular diameter: 3.4"
Status: near western quadrature

Observation tip: A telescope is required; Binoculars or a telescope are recommended

Right ascension: 22h50m53s
เดคลิเนชัน: -08°08'55"

Neptune

Fair
Apparent magnitude: 7.8
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: 09h19m40s
เดคลิเนชัน: +15°47'37"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Sagittarius
Angular diameter: 12256.8"
Status: Moon illumination 5.3%

Observation tip: Moon illumination 5.3%; good for observing lunar surface detail

Right ascension: 17h50m39s
เดคลิเนชัน: -18°22'33"