December 2003 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

22 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 2003 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -0.1
Stjernebillede: Capricornus
Angular diameter: 7.7"
Status: near superior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascension: 18h52m29s
Deklination: -24°05'26"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Capricornus
Angular diameter: 12.0"
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: 19h37m20s
Deklination: -23°18'35"

Mars

Excellent
Tilsyneladende magnitude: -0.1
Stjernebillede: Pisces
Angular diameter: 9.7"
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: 23h57m20s
Deklination: -00°43'19"

Jupiter

Excellent
Tilsyneladende magnitude: -2.1
Stjernebillede: Virgo
Angular diameter: 37.6"
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: 11h18m38s
Deklination: +05°40'45"

Saturn

Excellent
Tilsyneladende magnitude: -0.3
Stjernebillede: Cancer
Angular diameter: 20.5"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

Rektascension: 06h48m06s
Deklination: +22°16'50"

Uranus

Fair
Tilsyneladende magnitude: 5.9
Stjernebillede: Pisces
Angular diameter: 3.5"
Status: near western quadrature

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

Rektascension: 22h07m20s
Deklination: -12°21'31"

Neptune

Fair
Tilsyneladende magnitude: 7.8
Stjernebillede: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascension: 20h54m31s
Deklination: -17°26'49"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Virgo
Angular diameter: 11963.6"
Status: Moon illumination 68.0%

Observation tip: Moon illumination 68.0%; good for observing lunar surface detail

Rektascension: 10h21m47s
Deklination: +15°41'13"