May 2017 Himmelsereignisse

Beobachterstandort:Beijing (39.904°, 116.407°)

Monatliche Himmelsereignisse

20 Himmelereignisse insgesamt, einschließlich 4 Mondphasen und 1 Planetenereignisse.

Tägliche Himmelsereignisse

Alle Zeiten in Ortszeit (Asia/Shanghai)

Group Datum Sonnenaufgang/-untergang Mondaufgang/-untergang Mondphase Himmelsereignisse

Planetary outlook

May 2017 mid-month observing conditions

Mercury

Excellent
Scheinbare Helligkeit: 0.6
Sternbild: 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

Rektaszension: 01h52m37s
Deklination: +08°03'17"

Venus

Excellent
Scheinbare Helligkeit: -4.6
Sternbild: 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

Rektaszension: 00h38m39s
Deklination: +03°23'20"

Mars

Excellent
Scheinbare Helligkeit: 1.6
Sternbild: 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

Rektaszension: 04h59m23s
Deklination: +23°28'12"

Jupiter

Excellent
Scheinbare Helligkeit: -2.4
Sternbild: 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

Rektaszension: 12h54m34s
Deklination: -04°12'18"

Saturn

Excellent
Scheinbare Helligkeit: 0.2
Sternbild: 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

Rektaszension: 17h45m29s
Deklination: -22°01'18"

Uranus

Fair
Scheinbare Helligkeit: 5.9
Sternbild: Aries
Angular diameter: 3.4"
Status: near eastern quadrature

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

Rektaszension: 01h37m53s
Deklination: +09°34'46"

Neptune

Fair
Scheinbare Helligkeit: 7.8
Sternbild: Pisces
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektaszension: 23h02m19s
Deklination: -07°06'48"

Moon

Excellent
Scheinbare Helligkeit: -12.7
Sternbild: Capricornus
Angular diameter: 11509.1"
Status: Moon illumination 85.5%

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

Rektaszension: 18h38m29s
Deklination: -19°17'38"