December 2081 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

25 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 2081 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -0.7
Stjernebillede: Capricornus
Angular diameter: 5.6"
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: 18h48m17s
Deklination: -25°15'20"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Sagittarius
Angular diameter: 9.8"
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: 17h27m37s
Deklination: -23°18'52"

Mars

Excellent
Tilsyneladende magnitude: 1.7
Stjernebillede: Scorpius
Angular diameter: 4.3"
Status: near eastern quadrature

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

Rektascension: 14h32m23s
Deklination: -14°09'13"

Jupiter

Excellent
Tilsyneladende magnitude: -2.4
Stjernebillede: Pisces
Angular diameter: 40.0"
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: 23h24m43s
Deklination: -05°12'06"

Saturn

Excellent
Tilsyneladende magnitude: 0.8
Stjernebillede: Aquarius
Angular diameter: 16.1"
Status: near western quadrature

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

Rektascension: 21h42m42s
Deklination: -15°07'01"

Uranus

Fair
Tilsyneladende magnitude: 5.9
Stjernebillede: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

Rektascension: 20h39m53s
Deklination: -19°00'18"

Neptune

Fair
Tilsyneladende magnitude: 7.7
Stjernebillede: Leo
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascension: 08h38m40s
Deklination: +18°13'54"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Gemini
Angular diameter: 12021.8"
Status: Moon illumination 98.2%

Observation tip: Moon illumination 98.2%; good for observing lunar surface detail

Rektascension: 04h26m12s
Deklination: +26°45'40"