May 1998 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 1998 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 0.0
กลุ่มดาว: Aries
Angular diameter: 6.7"
Status: near inferior conjunction

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 01h55m19s
เดคลิเนชัน: +08°41'04"

Venus

Excellent
Apparent magnitude: -4.1
กลุ่มดาว: Aries
Angular diameter: 15.9"
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: 00h49m33s
เดคลิเนชัน: +03°22'06"

Mars

Excellent
Apparent magnitude: 1.2
กลุ่มดาว: Taurus
Angular diameter: 3.8"
Status: near eastern quadrature

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

Right ascension: 03h24m09s
เดคลิเนชัน: +18°41'55"

Jupiter

Excellent
Apparent magnitude: -2.2
กลุ่มดาว: Pisces
Angular diameter: 36.6"
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: 23h32m35s
เดคลิเนชัน: -04°06'51"

Saturn

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Aries
Angular diameter: 16.3"
Status: near eastern quadrature

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

Right ascension: 01h44m27s
เดคลิเนชัน: +08°22'26"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Aquarius
Angular diameter: 3.6"
Status: near eastern quadrature

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

Right ascension: 21h01m35s
เดคลิเนชัน: -17°36'18"

Neptune

Fair
Apparent magnitude: 7.8
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: 20h17m14s
เดคลิเนชัน: -19°20'13"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Capricornus
Angular diameter: 11866.8"
Status: Moon illumination 88.9%

Observation tip: Moon illumination 88.9%; good for observing lunar surface detail

Right ascension: 18h11m55s
เดคลิเนชัน: -18°52'58"