December 1981 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

22 himlahändelser totalt, inklusive 4 månfaser och 2 planetära händelser.

Dagliga himlahändelser

Alla tider är i lokal tid (Asia/Shanghai)

Group Datum Soluppgång/Solnedgång Månuppgång/Månnedgång Månfas Himmelshändelser

Planetary outlook

December 1981 mid-month observing conditions

Mercury

Excellent
Skenbar magnitud: -1.1
Stjärnbild: Sagittarius
Angular diameter: 4.7"
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: 17h39m34s
Deklination: -24°52'43"

Venus

Excellent
Skenbar magnitud: -4.9
Stjärnbild: Aquarius
Angular diameter: 39.8"
Status: near superior 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: 20h26m10s
Deklination: -20°51'29"

Mars

Excellent
Skenbar magnitud: 1.0
Stjärnbild: Libra
Angular diameter: 6.4"
Status: near eastern quadrature

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

Rektascension: 12h01m36s
Deklination: +02°07'14"

Jupiter

Excellent
Skenbar magnitud: -1.8
Stjärnbild: Scorpius
Angular diameter: 32.7"
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: 14h06m02s
Deklination: -11°33'28"

Saturn

Excellent
Skenbar magnitud: 0.8
Stjärnbild: Libra
Angular diameter: 16.5"
Status: near eastern quadrature

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

Rektascension: 13h18m43s
Deklination: -05°45'52"

Uranus

Fair
Skenbar magnitud: 5.7
Stjärnbild: Scorpius
Angular diameter: 3.6"
Status: near eastern quadrature

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

Rektascension: 15h58m41s
Deklination: -20°20'40"

Neptune

Fair
Skenbar magnitud: 8.0
Stjärnbild: Sagittarius
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascension: 17h36m18s
Deklination: -22°04'20"

Moon

Excellent
Skenbar magnitud: -12.7
Stjärnbild: Leo
Angular diameter: 12545.2"
Status: Moon illumination 82.2%

Observation tip: Moon illumination 82.2%; good for observing lunar surface detail

Rektascension: 09h04m01s
Deklination: +18°39'22"