December 2004 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

23 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 2004 mid-month observing conditions

Mercury

Good
Tilsyneladende magnitude: 2.1
Stjernebillede: Sagittarius
Angular diameter: 9.5"
Status: near greatest eastern elongation

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

Rektascension: 16h47m18s
Deklination: -19°42'16"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Scorpius
Angular diameter: 11.3"
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: 15h43m40s
Deklination: -18°21'29"

Mars

Excellent
Tilsyneladende magnitude: 1.6
Stjernebillede: Scorpius
Angular diameter: 4.0"
Status: near eastern quadrature

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

Rektascension: 15h21m35s
Deklination: -18°07'59"

Jupiter

Excellent
Tilsyneladende magnitude: -1.9
Stjernebillede: Libra
Angular diameter: 34.3"
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: 12h58m20s
Deklination: -04°53'44"

Saturn

Excellent
Tilsyneladende magnitude: -0.2
Stjernebillede: Cancer
Angular diameter: 20.2"
Status: near eastern quadrature

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

Rektascension: 07h52m32s
Deklination: +20°52'47"

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: 22h22m10s
Deklination: -10°59'03"

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: 21h03m18s
Deklination: -16°54'14"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Aquarius
Angular diameter: 12852.9"
Status: Moon illumination 12.8%

Observation tip: Moon illumination 12.8%; good for observing lunar surface detail

Rektascension: 20h34m15s
Deklination: -23°58'45"