May 1987 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

23 himlahändelser totalt, inklusive 4 månfaser och 1 planetära händelser.

Dagliga himlahändelser

Alla tider är i lokal tid (Asia/Shanghai)

Group Datum Soluppgång/Solnedgång Månuppgång/Månnedgång Månfas Himmelshändelser

Planetary outlook

May 1987 mid-month observing conditions

Mercury

Excellent
Skenbar magnitud: -1.5
Stjärnbild: 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

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

Venus

Excellent
Skenbar magnitud: -3.9
Stjärnbild: 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

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

Mars

Excellent
Skenbar magnitud: 1.7
Stjärnbild: 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

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

Jupiter

Excellent
Skenbar magnitud: -2.1
Stjärnbild: 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

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

Saturn

Excellent
Skenbar magnitud: 0.1
Stjärnbild: 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

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

Uranus

Fair
Skenbar magnitud: 5.6
Stjärnbild: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

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

Neptune

Fair
Skenbar magnitud: 7.8
Stjärnbild: Capricornus
Angular diameter: 2.3"
Status: near eastern quadrature

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

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

Moon

Excellent
Skenbar magnitud: -12.7
Stjärnbild: Sagittarius
Angular diameter: 12773.7"
Status: Moon illumination 96.9%

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

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