May 1904 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

May 1904 mid-month observing conditions

Mercury

Fair
Apparent magnitude: 6.6
กลุ่มดาว: Taurus
Angular diameter: 12.2"
Status: near greatest eastern elongation

Observation tip: A telescope is required; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 03h16m43s
เดคลิเนชัน: +17°10'56"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Taurus
Angular diameter: 10.1"
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: 02h28m15s
เดคลิเนชัน: +13°19'45"

Mars

Excellent
Apparent magnitude: 1.3
กลุ่มดาว: Taurus
Angular diameter: 3.7"
Status: near western quadrature

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

Right ascension: 03h41m47s
เดคลิเนชัน: +19°53'20"

Jupiter

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Aries
Angular diameter: 34.4"
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: 01h06m53s
เดคลิเนชัน: +05°53'30"

Saturn

Excellent
Apparent magnitude: 0.7
กลุ่มดาว: Aquarius
Angular diameter: 16.9"
Status: near eastern quadrature

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

Right ascension: 21h33m55s
เดคลิเนชัน: -15°28'18"

Uranus

Fair
Apparent magnitude: 5.6
กลุ่มดาว: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

Right ascension: 17h56m55s
เดคลิเนชัน: -23°38'32"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Cancer
Angular diameter: 2.2"
Status: near western quadrature

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

Right ascension: 06h17m51s
เดคลิเนชัน: +22°22'52"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Taurus
Angular diameter: 12040.1"
Status: Moon illumination 0.4%

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

Right ascension: 03h07m21s
เดคลิเนชัน: +13°22'41"