May 2010 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

19 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

May 2010 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 1.5
กลุ่มดาว: Taurus
Angular diameter: 10.3"
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: 02h07m18s
เดคลิเนชัน: +09°45'24"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Gemini
Angular diameter: 12.0"
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: 05h33m20s
เดคลิเนชัน: +24°40'39"

Mars

Excellent
Apparent magnitude: 0.9
กลุ่มดาว: Leo
Angular diameter: 6.6"
Status: near western quadrature

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

Right ascension: 09h26m14s
เดคลิเนชัน: +16°55'23"

Jupiter

Excellent
Apparent magnitude: -2.2
กลุ่มดาว: Pisces
Angular diameter: 36.2"
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: 23h48m43s
เดคลิเนชัน: -02°24'24"

Saturn

Excellent
Apparent magnitude: 0.8
กลุ่มดาว: Virgo
Angular diameter: 18.6"
Status: near western quadrature

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

Right ascension: 11h56m46s
เดคลิเนชัน: +03°03'29"

Uranus

Fair
Apparent magnitude: 6.0
กลุ่มดาว: Pisces
Angular diameter: 3.4"
Status: near eastern quadrature

Observation tip: A telescope is required; Binoculars or a telescope are recommended

Right ascension: 23h59m31s
เดคลิเนชัน: -00°50'56"

Neptune

Fair
Apparent magnitude: 7.8
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: 22h03m44s
เดคลิเนชัน: -12°22'28"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Gemini
Angular diameter: 12286.1"
Status: Moon illumination 1.2%

Observation tip: Moon illumination 1.2%; good for observing lunar surface detail

Right ascension: 04h14m18s
เดคลิเนชัน: +24°20'32"