July 2007 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

21 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 2007 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 1.0
กลุ่มดาว: Cancer
Angular diameter: 9.1"
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: 06h14m55s
เดคลิเนชัน: +19°43'26"

Venus

Excellent
Apparent magnitude: -4.7
กลุ่มดาว: Virgo
Angular diameter: 38.8"
Status: near superior 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: 10h06m44s
เดคลิเนชัน: +10°07'48"

Mars

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Taurus
Angular diameter: 6.6"
Status: near eastern quadrature

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

Right ascension: 02h49m02s
เดคลิเนชัน: +14°50'15"

Jupiter

Excellent
Apparent magnitude: -2.5
กลุ่มดาว: Sagittarius
Angular diameter: 43.8"
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: 16h36m56s
เดคลิเนชัน: -21°28'22"

Saturn

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Leo
Angular diameter: 16.5"
Status: near western quadrature

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

Right ascension: 09h46m23s
เดคลิเนชัน: +14°45'21"

Uranus

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

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

Right ascension: 23h19m00s
เดคลิเนชัน: -05°16'29"

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: 21h35m28s
เดคลิเนชัน: -14°37'39"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Leo
Angular diameter: 12255.8"
Status: Moon illumination 0.4%

Observation tip: Moon illumination 0.4%; good for observing lunar surface detail

Right ascension: 08h05m12s
เดคลิเนชัน: +23°39'42"