September 2007 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

September 2007 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.1
กลุ่มดาว: Libra
Angular diameter: 5.6"
Status: near greatest western elongation

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 12h50m42s
เดคลิเนชัน: -06°30'58"

Venus

Excellent
Apparent magnitude: -4.8
กลุ่มดาว: Leo
Angular diameter: 43.6"
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: 09h11m48s
เดคลิเนชัน: +09°56'35"

Mars

Excellent
Apparent magnitude: 0.1
กลุ่มดาว: Gemini
Angular diameter: 8.8"
Status: near eastern quadrature

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

Right ascension: 05h30m00s
เดคลิเนชัน: +22°48'11"

Jupiter

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Sagittarius
Angular diameter: 36.8"
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: 16h42m55s
เดคลิเนชัน: -21°52'01"

Saturn

Excellent
Apparent magnitude: 0.7
กลุ่มดาว: Virgo
Angular diameter: 16.3"
Status: near eastern quadrature

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

Right ascension: 10h16m10s
เดคลิเนชัน: +12°09'21"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Pisces
Angular diameter: 3.7"
Status: near western quadrature

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

Right ascension: 23h11m35s
เดคลิเนชัน: -06°04'31"

Neptune

Fair
Apparent magnitude: 7.7
กลุ่มดาว: Aquarius
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 21h29m15s
เดคลิเนชัน: -15°08'38"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Libra
Angular diameter: 11479.6"
Status: Moon illumination 11.0%

Observation tip: Moon illumination 11.0%; good for observing lunar surface detail

Right ascension: 13h46m14s
เดคลิเนชัน: -15°28'47"