April 1991 Zeru gertakariak

Behatzailearen kokapena:Beijing (39.904°, 116.407°)

Planeten ikuspegi orokorra

22 guztira zeru-gertaerak, barne 4 ilargi-faseak eta 1 planetako gertaerak.

Zeru gertakariak

Ordu guztiak tokiko orduan daude (Asia/Shanghai)

Group Data Egunsentia/ilunabarra Ilargi-irteera/ilargi-sarrera Ilargi-fasea Zeru gertakariak

Planetary outlook

April 1991 mid-month observing conditions

Mercury

Fair
Itxurazko magnitudea: 6.5
Izardiа: 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

Igoera zuzena: 01h26m56s
Deklinazioa: +11°18'50"

Venus

Excellent
Itxurazko magnitudea: -4.0
Izardiа: 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

Igoera zuzena: 03h59m48s
Deklinazioa: +22°04'38"

Mars

Excellent
Itxurazko magnitudea: 1.2
Izardiа: 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

Igoera zuzena: 06h28m25s
Deklinazioa: +25°06'24"

Jupiter

Excellent
Itxurazko magnitudea: -2.2
Izardiа: 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

Igoera zuzena: 08h25m44s
Deklinazioa: +20°01'30"

Saturn

Excellent
Itxurazko magnitudea: 0.6
Izardiа: 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

Igoera zuzena: 20h33m50s
Deklinazioa: -19°03'08"

Uranus

Fair
Itxurazko magnitudea: 5.7
Izardiа: Capricornus
Angular diameter: 3.7"
Status: near eastern quadrature

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

Igoera zuzena: 19h00m09s
Deklinazioa: -23°04'36"

Neptune

Fair
Itxurazko magnitudea: 7.8
Izardiа: Capricornus
Angular diameter: 2.3"
Status: near eastern quadrature

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

Igoera zuzena: 19h12m15s
Deklinazioa: -21°35'35"

Moon

Excellent
Itxurazko magnitudea: -12.7
Izardiа: Aries
Angular diameter: 12574.0"
Status: Moon illumination 0.2%

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

Igoera zuzena: 01h32m36s
Deklinazioa: +15°02'37"