June 1999 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

20 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

June 1999 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.2
กลุ่มดาว: Cancer
Angular diameter: 6.3"
Status: near greatest western elongation

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

Right ascension: 07h02m43s
เดคลิเนชัน: +24°39'04"

Venus

Excellent
Apparent magnitude: -4.4
กลุ่มดาว: Leo
Angular diameter: 24.5"
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: 08h47m11s
เดคลิเนชัน: +20°03'59"

Mars

Excellent
Apparent magnitude: -0.8
กลุ่มดาว: Libra
Angular diameter: 12.9"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Right ascension: 13h32m18s
เดคลิเนชัน: -10°22'50"

Jupiter

Excellent
Apparent magnitude: -2.2
กลุ่มดาว: Aries
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: 01h44m36s
เดคลิเนชัน: +09°33'31"

Saturn

Excellent
Apparent magnitude: 0.4
กลุ่มดาว: Taurus
Angular diameter: 16.7"
Status: near eastern quadrature

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

Right ascension: 02h43m29s
เดคลิเนชัน: +13°30'24"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Aquarius
Angular diameter: 3.7"
Status: near eastern quadrature

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

Right ascension: 21h16m56s
เดคลิเนชัน: -16°31'51"

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: 20h24m55s
เดคลิเนชัน: -18°58'48"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Cancer
Angular diameter: 12859.6"
Status: Moon illumination 2.2%

Observation tip: Moon illumination 2.2%; good for observing lunar surface detail

Right ascension: 06h44m32s
เดคลิเนชัน: +20°11'57"