May 1990 Astronomické jevy

Poloha pozorovatele:Beijing (39.904°, 116.407°)

Přehled měsíčních nebeských úkazů

23 celkem nebeských úkazů, včetně 5 fáze Měsíce a 2 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

May 1990 mid-month observing conditions

Mercury

Good
Zdánlivá magnituda: 2.5
Souhvězdí: Taurus
Angular diameter: 11.3"
Status: near greatest eastern elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascenze: 02h26m02s
Deklinace: +11°54'41"

Venus

Excellent
Zdánlivá magnituda: -4.1
Souhvězdí: Aries
Angular diameter: 16.1"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

Rektascenze: 00h47m50s
Deklinace: +03°12'01"

Mars

Excellent
Zdánlivá magnituda: 0.7
Souhvězdí: Pisces
Angular diameter: 6.4"
Status: near eastern quadrature

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

Rektascenze: 23h18m25s
Deklinace: -06°20'48"

Jupiter

Excellent
Zdánlivá magnituda: -1.9
Souhvězdí: Cancer
Angular diameter: 33.7"
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

Rektascenze: 06h41m09s
Deklinace: +23°14'49"

Saturn

Excellent
Zdánlivá magnituda: 0.4
Souhvězdí: Capricornus
Angular diameter: 17.5"
Status: near eastern quadrature

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

Rektascenze: 19h48m44s
Deklinace: -20°56'03"

Uranus

Fair
Zdánlivá magnituda: 5.6
Souhvězdí: Capricornus
Angular diameter: 3.8"
Status: near eastern quadrature

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

Rektascenze: 18h40m07s
Deklinace: -23°26'13"

Neptune

Fair
Zdánlivá magnituda: 7.8
Souhvězdí: Capricornus
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascenze: 19h01m57s
Deklinace: -21°48'02"

Moon

Excellent
Zdánlivá magnituda: -12.7
Souhvězdí: Capricornus
Angular diameter: 11707.7"
Status: Moon illumination 77.2%

Observation tip: Moon illumination 77.2%; good for observing lunar surface detail

Rektascenze: 19h31m59s
Deklinace: -23°26'49"