April 2021 Astronomické jevy

Poloha pozorovatele:Beijing (39.904°, 116.407°)

Přehled měsíčních nebeských úkazů

23 celkem nebeských úkazů, včetně 4 fáze Měsíce a 1 planetární jevy.

Denní nebeské úkazy

Všechny časy jsou v místním čase (Asia/Shanghai)

Group Datum Východ/západ Slunce Východ/západ Měsíce Fáze Měsíce Astronomické jevy

Planetary outlook

April 2021 mid-month observing conditions

Mercury

Excellent
Zdánlivá magnituda: -1.7
Souhvězdí: Aries
Angular diameter: 5.0"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascenze: 01h18m32s
Deklinace: +07°00'08"

Venus

Excellent
Zdánlivá magnituda: -3.9
Souhvězdí: Aries
Angular diameter: 9.7"
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

Rektascenze: 01h54m03s
Deklinace: +10°43'08"

Mars

Excellent
Zdánlivá magnituda: 1.4
Souhvězdí: Gemini
Angular diameter: 5.0"
Status: near western quadrature

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

Rektascenze: 05h37m21s
Deklinace: +24°48'32"

Jupiter

Excellent
Zdánlivá magnituda: -2.1
Souhvězdí: Aquarius
Angular diameter: 35.9"
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

Rektascenze: 21h53m15s
Deklinace: -13°33'51"

Saturn

Excellent
Zdánlivá magnituda: 0.7
Souhvězdí: Aquarius
Angular diameter: 16.3"
Status: near eastern quadrature

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

Rektascenze: 20h59m51s
Deklinace: -17°37'15"

Uranus

Fair
Zdánlivá magnituda: 5.9
Souhvězdí: Taurus
Angular diameter: 3.4"
Status: near western quadrature

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

Rektascenze: 02h30m01s
Deklinace: +14°21'20"

Neptune

Fair
Zdánlivá magnituda: 7.8
Souhvězdí: Pisces
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascenze: 23h31m57s
Deklinace: -04°12'11"

Moon

Excellent
Zdánlivá magnituda: -12.7
Souhvězdí: Taurus
Angular diameter: 11456.2"
Status: Moon illumination 7.4%

Observation tip: Moon illumination 7.4%; good for observing lunar surface detail

Rektascenze: 03h39m09s
Deklinace: +18°09'31"