July 2003 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 sky events total, including 4 moon phases and 1 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

July 2003 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.1
กลุ่มดาว: Leo
Angular diameter: 5.2"
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: 08h22m51s
เดคลิเนชัน: +21°16'37"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Cancer
Angular diameter: 9.8"
Status: near inferior conjunction

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: 06h54m46s
เดคลิเนชัน: +23°09'02"

Mars

Excellent
Apparent magnitude: -1.8
กลุ่มดาว: Pisces
Angular diameter: 19.2"
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: 22h49m34s
เดคลิเนชัน: -13°03'19"

Jupiter

Excellent
Apparent magnitude: -1.8
กลุ่มดาว: Leo
Angular diameter: 31.6"
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: 09h33m29s
เดคลิเนชัน: +15°20'44"

Saturn

Excellent
Apparent magnitude: 0.1
กลุ่มดาว: Cancer
Angular diameter: 16.6"
Status: near eastern quadrature

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

Right ascension: 06h22m51s
เดคลิเนชัน: +22°33'29"

Uranus

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

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

Right ascension: 22h18m11s
เดคลิเนชัน: -11°23'34"

Neptune

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

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

Right ascension: 20h59m10s
เดคลิเนชัน: -17°05'47"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Aquarius
Angular diameter: 12397.0"
Status: Moon illumination 98.0%

Observation tip: Moon illumination 98.0%; good for observing lunar surface detail

Right ascension: 20h46m07s
เดคลิเนชัน: -22°56'31"