April 1991 Nebeske pojave

Lokacija opazovalca:Beijing (39.904°, 116.407°)

Pregled mesečnih nebesnih dogodkov

22 astronomskih dogodkov skupaj, vključno 4 lunine faze in 1 planetarni dogodki.

Dnevni nebesni dogodki

Vsi časi so v lokalnem času (Asia/Shanghai)

Group Datum Sončni vzhod/zahod Lunin vzhod/zahod Lunina faza Nebeske pojave

Planetary outlook

April 1991 mid-month observing conditions

Mercury

Fair
Navidezna magnituda: 6.5
Ozvezdje: 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

Rektascenzija: 01h26m56s
Deklinacija: +11°18'50"

Venus

Excellent
Navidezna magnituda: -4.0
Ozvezdje: 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

Rektascenzija: 03h59m48s
Deklinacija: +22°04'38"

Mars

Excellent
Navidezna magnituda: 1.2
Ozvezdje: 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

Rektascenzija: 06h28m25s
Deklinacija: +25°06'24"

Jupiter

Excellent
Navidezna magnituda: -2.2
Ozvezdje: 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

Rektascenzija: 08h25m44s
Deklinacija: +20°01'30"

Saturn

Excellent
Navidezna magnituda: 0.6
Ozvezdje: 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

Rektascenzija: 20h33m50s
Deklinacija: -19°03'08"

Uranus

Fair
Navidezna magnituda: 5.7
Ozvezdje: Capricornus
Angular diameter: 3.7"
Status: near eastern quadrature

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

Rektascenzija: 19h00m09s
Deklinacija: -23°04'36"

Neptune

Fair
Navidezna magnituda: 7.8
Ozvezdje: Capricornus
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascenzija: 19h12m15s
Deklinacija: -21°35'35"

Moon

Excellent
Navidezna magnituda: -12.7
Ozvezdje: Aries
Angular diameter: 12574.0"
Status: Moon illumination 0.2%

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

Rektascenzija: 01h32m36s
Deklinacija: +15°02'37"