April 1991 வான் நிகழ்வுகள்

Observer Location:Beijing (39.904°, 116.407°)

கோள்களின் கண்ணோட்டம்

22 sky events total, including 4 moon phases and 1 planetary events.

வான நிகழ்வுகள்

All times are in local time (Asia/Shanghai)

Group தேதி Sunrise/Sunset Moonrise/Moonset Moon Phase வான் நிகழ்வுகள்

Planetary outlook

April 1991 mid-month observing conditions

Mercury

Fair
Apparent magnitude: 6.5
நட்சத்திர மண்டலம்: Aries
Angular diameter: 11.6"
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: 01h26m56s
விலக்கம்: +11°18'50"

Venus

Excellent
Apparent magnitude: -4.0
நட்சத்திர மண்டலம்: Taurus
Angular diameter: 14.3"
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: 03h59m48s
விலக்கம்: +22°04'38"

Mars

Excellent
Apparent magnitude: 1.2
நட்சத்திர மண்டலம்: Cancer
Angular diameter: 5.6"
Status: near western quadrature

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

Right ascension: 06h28m25s
விலக்கம்: +25°06'24"

Jupiter

Excellent
Apparent magnitude: -2.2
நட்சத்திர மண்டலம்: Leo
Angular diameter: 39.0"
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: 08h25m44s
விலக்கம்: +20°01'30"

Saturn

Excellent
Apparent magnitude: 0.6
நட்சத்திர மண்டலம்: Aquarius
Angular diameter: 16.4"
Status: near eastern quadrature

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

Right ascension: 20h33m50s
விலக்கம்: -19°03'08"

Uranus

Fair
Apparent magnitude: 5.7
நட்சத்திர மண்டலம்: Capricornus
Angular diameter: 3.7"
Status: near eastern quadrature

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

Right ascension: 19h00m09s
விலக்கம்: -23°04'36"

Neptune

Fair
Apparent magnitude: 7.8
நட்சத்திர மண்டலம்: Capricornus
Angular diameter: 2.3"
Status: near eastern quadrature

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

Right ascension: 19h12m15s
விலக்கம்: -21°35'35"

Moon

Excellent
Apparent magnitude: -12.7
நட்சத்திர மண்டலம்: Aries
Angular diameter: 12574.0"
Status: Moon illumination 0.2%

Observation tip: Moon illumination 0.2%; good for observing lunar surface detail

Right ascension: 01h32m36s
விலக்கம்: +15°02'37"