May 2017 Astronomické jevy

Poloha pozorovatele:Beijing (39.904°, 116.407°)

Přehled měsíčních nebeských úkazů

20 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

May 2017 mid-month observing conditions

Mercury

Excellent
Zdánlivá magnituda: 0.6
Souhvězdí: Aries
Angular diameter: 8.7"
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: 01h52m37s
Deklinace: +08°03'17"

Venus

Excellent
Zdánlivá magnituda: -4.6
Souhvězdí: Aries
Angular diameter: 30.6"
Status: near greatest eastern 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: 00h38m39s
Deklinace: +03°23'20"

Mars

Excellent
Zdánlivá magnituda: 1.6
Souhvězdí: Gemini
Angular diameter: 3.8"
Status: near western quadrature

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

Rektascenze: 04h59m23s
Deklinace: +23°28'12"

Jupiter

Excellent
Zdánlivá magnituda: -2.4
Souhvězdí: Libra
Angular diameter: 42.5"
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: 12h54m34s
Deklinace: -04°12'18"

Saturn

Excellent
Zdánlivá magnituda: 0.2
Souhvězdí: Sagittarius
Angular diameter: 18.1"
Status: near eastern quadrature

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

Rektascenze: 17h45m29s
Deklinace: -22°01'18"

Uranus

Fair
Zdánlivá magnituda: 5.9
Souhvězdí: Aries
Angular diameter: 3.4"
Status: near eastern quadrature

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

Rektascenze: 01h37m53s
Deklinace: +09°34'46"

Neptune

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

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

Rektascenze: 23h02m19s
Deklinace: -07°06'48"

Moon

Excellent
Zdánlivá magnituda: -12.7
Souhvězdí: Capricornus
Angular diameter: 11509.1"
Status: Moon illumination 85.5%

Observation tip: Moon illumination 85.5%; good for observing lunar surface detail

Rektascenze: 18h38m29s
Deklinace: -19°17'38"