March 1991 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 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

March 1991 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.3
กลุ่มดาว: Aries
Angular diameter: 5.6"
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: 00h21m36s
เดคลิเนชัน: +02°17'13"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Aries
Angular diameter: 12.4"
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: 01h33m53s
เดคลิเนชัน: +09°36'46"

Mars

Excellent
Apparent magnitude: 0.8
กลุ่มดาว: Gemini
Angular diameter: 6.9"
Status: near western quadrature

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

Right ascension: 05h16m59s
เดคลิเนชัน: +25°08'43"

Jupiter

Excellent
Apparent magnitude: -2.4
กลุ่มดาว: Leo
Angular diameter: 42.8"
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: 08h25m48s
เดคลิเนชัน: +20°02'27"

Saturn

Excellent
Apparent magnitude: 0.7
กลุ่มดาว: Aquarius
Angular diameter: 15.7"
Status: near eastern quadrature

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

Right ascension: 20h24m39s
เดคลิเนชัน: -19°32'16"

Uranus

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

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

Right ascension: 18h58m00s
เดคลิเนชัน: -23°06'49"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Capricornus
Angular diameter: 2.2"
Status: near eastern quadrature

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

Right ascension: 19h10m51s
เดคลิเนชัน: -21°38'32"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Pisces
Angular diameter: 12029.6"
Status: Moon illumination 2.1%

Observation tip: Moon illumination 2.1%; good for observing lunar surface detail

Right ascension: 22h31m37s
เดคลิเนชัน: -05°40'28"