May 1987 Himmelsereignisse

Beobachterstandort:Beijing (39.904°, 116.407°)

Monatliche Himmelsereignisse

23 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 1987 mid-month observing conditions

Mercury

Excellent
Scheinbare Helligkeit: -1.5
Sternbild: Gemini
Angular diameter: 5.3"
Status: near greatest western elongation

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

Rektaszension: 04h01m22s
Deklination: +21°53'45"

Venus

Excellent
Scheinbare Helligkeit: -3.9
Sternbild: Aries
Angular diameter: 11.3"
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

Rektaszension: 01h42m34s
Deklination: +08°49'55"

Mars

Excellent
Scheinbare Helligkeit: 1.7
Sternbild: Gemini
Angular diameter: 4.0"
Status: near western quadrature

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

Rektaszension: 05h42m27s
Deklination: +24°25'35"

Jupiter

Excellent
Scheinbare Helligkeit: -2.1
Sternbild: Aries
Angular diameter: 34.4"
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

Rektaszension: 01h05m24s
Deklination: +05°44'24"

Saturn

Excellent
Scheinbare Helligkeit: 0.1
Sternbild: Sagittarius
Angular diameter: 18.2"
Status: near eastern quadrature

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

Rektaszension: 17h15m27s
Deklination: -21°25'01"

Uranus

Fair
Scheinbare Helligkeit: 5.6
Sternbild: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

Rektaszension: 17h42m23s
Deklination: -23°31'38"

Neptune

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

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

Rektaszension: 18h33m12s
Deklination: -22°10'23"

Moon

Excellent
Scheinbare Helligkeit: -12.7
Sternbild: Sagittarius
Angular diameter: 12773.7"
Status: Moon illumination 96.9%

Observation tip: Moon illumination 96.9%; good for observing lunar surface detail

Rektaszension: 16h46m29s
Deklination: -26°58'52"