December 2040 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

26 himmelbegivenheder i alt, inklusive 4 månefaser og 2 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

December 2040 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -1.3
Stjernebillede: Sagittarius
Angular diameter: 4.6"
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: 17h33m16s
Deklination: -24°36'52"

Venus

Excellent
Tilsyneladende magnitude: -4.3
Stjernebillede: Aquarius
Angular diameter: 19.9"
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: 20h50m32s
Deklination: -20°00'44"

Mars

Excellent
Tilsyneladende magnitude: 1.2
Stjernebillede: Sagittarius
Angular diameter: 3.8"
Status: near western quadrature

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

Rektascension: 17h35m04s
Deklination: -23°56'46"

Jupiter

Excellent
Tilsyneladende magnitude: -1.8
Stjernebillede: Libra
Angular diameter: 33.3"
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: 13h39m27s
Deklination: -09°03'11"

Saturn

Excellent
Tilsyneladende magnitude: 0.8
Stjernebillede: 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: 13h26m31s
Deklination: -06°32'16"

Uranus

Fair
Tilsyneladende magnitude: 5.5
Stjernebillede: Leo
Angular diameter: 4.0"
Status: near eastern quadrature

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

Rektascension: 08h40m46s
Deklination: +18°58'13"

Neptune

Fair
Tilsyneladende magnitude: 7.7
Stjernebillede: Taurus
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascension: 02h06m43s
Deklination: +10°55'25"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Taurus
Angular diameter: 11975.1"
Status: Moon illumination 88.1%

Observation tip: Moon illumination 88.1%; good for observing lunar surface detail

Rektascension: 02h44m20s
Deklination: +14°49'39"