May 2017 Eventi celesti

Posizione dell'osservatore:Beijing (39.904°, 116.407°)

Panoramica degli eventi celesti mensili

20 eventi celesti in totale, inclusi 4 fasi lunari e 1 eventi planetari.

Eventi celesti giornalieri

Tutti gli orari sono in ora locale (Asia/Shanghai)

Group Data Alba/Tramonto Sorgere/Tramontare della Luna Fase lunare Eventi celesti

Planetary outlook

May 2017 mid-month observing conditions

Mercury

Excellent
Magnitudine apparente: 0.6
Costellazione: 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

Ascensione retta: 01h52m37s
Declinazione: +08°03'17"

Venus

Excellent
Magnitudine apparente: -4.6
Costellazione: 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

Ascensione retta: 00h38m39s
Declinazione: +03°23'20"

Mars

Excellent
Magnitudine apparente: 1.6
Costellazione: 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

Ascensione retta: 04h59m23s
Declinazione: +23°28'12"

Jupiter

Excellent
Magnitudine apparente: -2.4
Costellazione: 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

Ascensione retta: 12h54m34s
Declinazione: -04°12'18"

Saturn

Excellent
Magnitudine apparente: 0.2
Costellazione: 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

Ascensione retta: 17h45m29s
Declinazione: -22°01'18"

Uranus

Fair
Magnitudine apparente: 5.9
Costellazione: Aries
Angular diameter: 3.4"
Status: near eastern quadrature

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

Ascensione retta: 01h37m53s
Declinazione: +09°34'46"

Neptune

Fair
Magnitudine apparente: 7.8
Costellazione: Pisces
Angular diameter: 2.3"
Status: near eastern quadrature

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

Ascensione retta: 23h02m19s
Declinazione: -07°06'48"

Moon

Excellent
Magnitudine apparente: -12.7
Costellazione: Capricornus
Angular diameter: 11509.1"
Status: Moon illumination 85.5%

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

Ascensione retta: 18h38m29s
Declinazione: -19°17'38"