July 1930 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

24 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 1930 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -2.2
กลุ่มดาว: Cancer
Angular diameter: 5.1"
Status: near inferior conjunction

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

Right ascension: 07h33m01s
เดคลิเนชัน: +23°13'08"

Venus

Excellent
Apparent magnitude: -4.0
กลุ่มดาว: Virgo
Angular diameter: 14.6"
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: 10h11m54s
เดคลิเนชัน: +12°45'19"

Mars

Excellent
Apparent magnitude: 1.1
กลุ่มดาว: Taurus
Angular diameter: 5.1"
Status: near eastern quadrature

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

Right ascension: 03h53m06s
เดคลิเนชัน: +19°41'02"

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: 06h17m48s
เดคลิเนชัน: +23°12'45"

Saturn

Excellent
Apparent magnitude: 0.1
กลุ่มดาว: Capricornus
Angular diameter: 18.4"
Status: near western quadrature

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

Right ascension: 18h32m48s
เดคลิเนชัน: -22°33'46"

Uranus

Fair
Apparent magnitude: 5.9
กลุ่มดาว: Aries
Angular diameter: 3.5"
Status: near eastern quadrature

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

Right ascension: 00h57m37s
เดคลิเนชัน: +05°25'16"

Neptune

Fair
Apparent magnitude: 8.0
กลุ่มดาว: Virgo
Angular diameter: 2.2"
Status: near western quadrature

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

Right ascension: 10h16m14s
เดคลิเนชัน: +11°26'26"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Pisces
Angular diameter: 11485.4"
Status: Moon illumination 84.9%

Observation tip: Moon illumination 84.9%; good for observing lunar surface detail

Right ascension: 22h42m28s
เดคลิเนชัน: -12°24'53"