September 1909 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

25 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

September 1909 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 0.2
กลุ่มดาว: Libra
Angular diameter: 6.7"
Status: near greatest western elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 13h02m10s
เดคลิเนชัน: -09°10'50"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Libra
Angular diameter: 13.5"
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: 13h42m09s
เดคลิเนชัน: -10°49'48"

Mars

Excellent
Apparent magnitude: -2.7
กลุ่มดาว: Aries
Angular diameter: 24.0"
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: 00h20m58s
เดคลิเนชัน: -03°32'22"

Jupiter

Excellent
Apparent magnitude: -1.7
กลุ่มดาว: Virgo
Angular diameter: 30.6"
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: 11h40m24s
เดคลิเนชัน: +03°17'04"

Saturn

Excellent
Apparent magnitude: 0.3
กลุ่มดาว: Aries
Angular diameter: 19.6"
Status: near eastern quadrature

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

Right ascension: 01h25m00s
เดคลิเนชัน: +05°58'59"

Uranus

Fair
Apparent magnitude: 5.7
กลุ่มดาว: Capricornus
Angular diameter: 3.7"
Status: near western quadrature

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

Right ascension: 19h14m43s
เดคลิเนชัน: -22°48'43"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Cancer
Angular diameter: 2.2"
Status: near eastern quadrature

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

Right ascension: 07h21m37s
เดคลิเนชัน: +21°25'08"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Virgo
Angular diameter: 11463.7"
Status: Moon illumination 0.3%

Observation tip: Moon illumination 0.3%; good for observing lunar surface detail

Right ascension: 11h51m21s
เดคลิเนชัน: +06°12'41"