December 1988 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

25 himlahändelser totalt, inklusive 5 månfaser och 4 planetära händelser.

Dagliga himlahändelser

Alla tider är i lokal tid (Asia/Shanghai)

Group Datum Soluppgång/Solnedgång Månuppgång/Månnedgång Månfas Himmelshändelser

Planetary outlook

December 1988 mid-month observing conditions

Mercury

Excellent
Skenbar magnitud: -0.9
Stjärnbild: Capricornus
Angular diameter: 4.8"
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: 18h03m31s
Deklination: -25°22'21"

Venus

Excellent
Skenbar magnitud: -3.9
Stjärnbild: Scorpius
Angular diameter: 11.5"
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: 15h38m29s
Deklination: -18°00'07"

Mars

Excellent
Skenbar magnitud: -0.5
Stjärnbild: Aries
Angular diameter: 11.3"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Rektascension: 00h44m19s
Deklination: +04°52'24"

Jupiter

Excellent
Skenbar magnitud: -2.8
Stjärnbild: Taurus
Angular diameter: 47.9"
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

Rektascension: 03h44m54s
Deklination: +18°49'48"

Saturn

Excellent
Skenbar magnitud: 0.5
Stjärnbild: Capricornus
Angular diameter: 15.1"
Status: near western quadrature

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

Rektascension: 18h15m33s
Deklination: -22°39'25"

Uranus

Fair
Skenbar magnitud: 5.8
Stjärnbild: Capricornus
Angular diameter: 3.5"
Status: near western quadrature

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

Rektascension: 18h03m11s
Deklination: -23°39'27"

Neptune

Fair
Skenbar magnitud: 7.9
Stjärnbild: Capricornus
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascension: 18h40m08s
Deklination: -22°12'47"

Moon

Excellent
Skenbar magnitud: -12.7
Stjärnbild: Pisces
Angular diameter: 12550.7"
Status: Moon illumination 36.2%

Observation tip: Moon illumination 36.2%; good for observing lunar surface detail

Rektascension: 22h35m21s
Deklination: -08°58'28"