December 1978 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

24 himmelbegivenheder i alt, inklusive 4 månefaser og 3 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

December 1978 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: 0.4
Stjernebillede: Sagittarius
Angular diameter: 8.5"
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: 16h16m01s
Deklination: -18°23'30"

Venus

Excellent
Tilsyneladende magnitude: -4.9
Stjernebillede: Scorpius
Angular diameter: 39.7"
Status: near greatest eastern 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: 14h42m26s
Deklination: -12°51'16"

Mars

Excellent
Tilsyneladende magnitude: 1.2
Stjernebillede: 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: 18h07m31s
Deklination: -24°15'29"

Jupiter

Excellent
Tilsyneladende magnitude: -2.5
Stjernebillede: Leo
Angular diameter: 43.5"
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: 08h44m06s
Deklination: +18°39'44"

Saturn

Excellent
Tilsyneladende magnitude: 0.7
Stjernebillede: Virgo
Angular diameter: 18.3"
Status: near eastern quadrature

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

Rektascension: 11h03m14s
Deklination: +07°59'35"

Uranus

Fair
Tilsyneladende magnitude: 5.6
Stjernebillede: Scorpius
Angular diameter: 3.6"
Status: near eastern quadrature

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

Rektascension: 15h05m56s
Deklination: -17°06'23"

Neptune

Fair
Tilsyneladende magnitude: 8.0
Stjernebillede: Sagittarius
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascension: 17h09m13s
Deklination: -21°32'28"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Gemini
Angular diameter: 11625.1"
Status: Moon illumination 99.6%

Observation tip: Moon illumination 99.6%; good for observing lunar surface detail

Rektascension: 05h51m47s
Deklination: +18°27'36"