January 1981 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

20 himmelbegivenheder i alt, inklusive 4 månefaser og 0 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

January 1981 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -1.0
Stjernebillede: Aquarius
Angular diameter: 5.0"
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: 20h27m06s
Deklination: -21°16'18"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Capricornus
Angular diameter: 10.7"
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: 18h20m13s
Deklination: -23°05'41"

Mars

Excellent
Tilsyneladende magnitude: 1.2
Stjernebillede: Aquarius
Angular diameter: 4.1"
Status: near western quadrature

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

Rektascension: 20h58m33s
Deklination: -18°18'13"

Jupiter

Excellent
Tilsyneladende magnitude: -2.1
Stjernebillede: Libra
Angular diameter: 38.5"
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: 12h39m46s
Deklination: -02°47'41"

Saturn

Excellent
Tilsyneladende magnitude: 0.8
Stjernebillede: Libra
Angular diameter: 18.0"
Status: near eastern quadrature

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

Rektascension: 12h39m43s
Deklination: -01°38'41"

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: 15h47m32s
Deklination: -19°43'41"

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: 17h32m08s
Deklination: -21°58'58"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Taurus
Angular diameter: 12585.1"
Status: Moon illumination 67.8%

Observation tip: Moon illumination 67.8%; good for observing lunar surface detail

Rektascension: 02h58m38s
Deklination: +11°28'44"