July 2013 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

21 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

July 2013 mid-month observing conditions

Mercury

Fair
Apparent magnitude: 4.0
กลุ่มดาว: Cancer
Angular diameter: 11.2"
Status: near greatest eastern elongation

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 07h01m50s
เดคลิเนชัน: +17°47'47"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Leo
Angular diameter: 11.7"
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: 09h35m27s
เดคลิเนชัน: +16°04'18"

Mars

Excellent
Apparent magnitude: 1.6
กลุ่มดาว: Cancer
Angular diameter: 3.8"
Status: near eastern quadrature

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

Right ascension: 06h04m16s
เดคลิเนชัน: +23°57'52"

Jupiter

Excellent
Apparent magnitude: -1.9
กลุ่มดาว: Cancer
Angular diameter: 32.4"
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: 06h18m39s
เดคลิเนชัน: +23°10'36"

Saturn

Excellent
Apparent magnitude: 0.5
กลุ่มดาว: Scorpius
Angular diameter: 17.4"
Status: near western quadrature

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

Right ascension: 14h13m39s
เดคลิเนชัน: -10°49'59"

Uranus

Fair
Apparent magnitude: 5.9
กลุ่มดาว: Aries
Angular diameter: 3.6"
Status: near eastern quadrature

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

Right ascension: 00h47m09s
เดคลิเนชัน: +04°17'50"

Neptune

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

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

Right ascension: 22h28m23s
เดคลิเนชัน: -10°17'54"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Libra
Angular diameter: 12060.7"
Status: Moon illumination 38.1%

Observation tip: Moon illumination 38.1%; good for observing lunar surface detail

Right ascension: 12h27m35s
เดคลิเนชัน: -06°10'27"