May 2001 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

May 2001 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -0.2
Stjernebillede: Gemini
Angular diameter: 6.8"
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: 04h52m58s
Deklination: +24°57'20"

Venus

Excellent
Tilsyneladende magnitude: -4.6
Stjernebillede: Aries
Angular diameter: 32.7"
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: 00h42m07s
Deklination: +03°58'02"

Mars

Excellent
Tilsyneladende magnitude: -1.5
Stjernebillede: Sagittarius
Angular diameter: 16.6"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Rektascension: 17h55m30s
Deklination: -24°52'44"

Jupiter

Excellent
Tilsyneladende magnitude: -2.0
Stjernebillede: Gemini
Angular diameter: 32.8"
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: 05h01m41s
Deklination: +22°23'21"

Saturn

Excellent
Tilsyneladende magnitude: 0.1
Stjernebillede: Gemini
Angular diameter: 16.5"
Status: near western quadrature

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

Rektascension: 04h05m12s
Deklination: +19°04'53"

Uranus

Fair
Tilsyneladende magnitude: 5.9
Stjernebillede: Aquarius
Angular diameter: 3.5"
Status: near eastern quadrature

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

Rektascension: 21h49m08s
Deklination: -13°56'48"

Neptune

Fair
Tilsyneladende magnitude: 7.8
Stjernebillede: Aquarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascension: 20h44m38s
Deklination: -17°55'09"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Aquarius
Angular diameter: 11513.2"
Status: Moon illumination 54.2%

Observation tip: Moon illumination 54.2%; good for observing lunar surface detail

Rektascension: 21h32m44s
Deklination: -18°14'55"