August 2012 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

21 sky events total, including 5 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

August 2012 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 0.2
กลุ่มดาว: Leo
Angular diameter: 7.8"
Status: near greatest eastern elongation

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

Right ascension: 08h24m06s
เดคลิเนชัน: +17°51'33"

Venus

Excellent
Apparent magnitude: -4.4
กลุ่มดาว: Cancer
Angular diameter: 23.7"
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: 06h29m10s
เดคลิเนชัน: +19°58'11"

Mars

Excellent
Apparent magnitude: 1.1
กลุ่มดาว: Libra
Angular diameter: 5.5"
Status: near western quadrature

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

Right ascension: 13h30m29s
เดคลิเนชัน: -09°47'52"

Jupiter

Excellent
Apparent magnitude: -2.2
กลุ่มดาว: Gemini
Angular diameter: 37.4"
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: 04h44m28s
เดคลิเนชัน: +21°30'48"

Saturn

Excellent
Apparent magnitude: 0.8
กลุ่มดาว: Libra
Angular diameter: 16.3"
Status: near western quadrature

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

Right ascension: 13h35m21s
เดคลิเนชัน: -07°23'43"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Aries
Angular diameter: 3.6"
Status: near eastern quadrature

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

Right ascension: 00h31m02s
เดคลิเนชัน: +02°32'28"

Neptune

Fair
Apparent magnitude: 7.7
กลุ่มดาว: Pisces
Angular diameter: 2.4"
Status: near eastern quadrature

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

Right ascension: 22h16m53s
เดคลิเนชัน: -11°20'16"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Cancer
Angular diameter: 11839.3"
Status: Moon illumination 7.8%

Observation tip: Moon illumination 7.8%; good for observing lunar surface detail

Right ascension: 07h25m53s
เดคลิเนชัน: +18°08'39"