December 1931 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

28 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 1931 mid-month observing conditions

Mercury

Excellent
Skenbar magnitud: 1.2
Stjärnbild: Capricornus
Angular diameter: 9.1"
Status: near superior conjunction

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascension: 18h23m58s
Deklination: -23°16'46"

Venus

Excellent
Skenbar magnitud: -3.9
Stjärnbild: Capricornus
Angular diameter: 11.1"
Status: near greatest western elongation

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

Rektascension: 19h12m33s
Deklination: -23°54'17"

Mars

Excellent
Skenbar magnitud: 1.2
Stjärnbild: Capricornus
Angular diameter: 3.9"
Status: near western quadrature

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

Rektascension: 18h16m13s
Deklination: -24°16'56"

Jupiter

Excellent
Skenbar magnitud: -2.3
Stjärnbild: Leo
Angular diameter: 41.4"
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: 09h40m52s
Deklination: +14°45'10"

Saturn

Excellent
Skenbar magnitud: 0.6
Stjärnbild: Capricornus
Angular diameter: 15.3"
Status: near western quadrature

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

Rektascension: 19h34m25s
Deklination: -21°44'25"

Uranus

Fair
Skenbar magnitud: 5.8
Stjärnbild: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

Rektascension: 00h58m03s
Deklination: +05°29'57"

Neptune

Fair
Skenbar magnitud: 7.9
Stjärnbild: Virgo
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascension: 10h39m44s
Deklination: +09°17'07"

Moon

Excellent
Skenbar magnitud: -12.7
Stjärnbild: Pisces
Angular diameter: 11723.8"
Status: Moon illumination 31.8%

Observation tip: Moon illumination 31.8%; good for observing lunar surface detail

Rektascension: 22h14m26s
Deklination: -13°41'53"