May 2021 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

21 himmelbegivenheder i alt, inklusive 4 månefaser og 1 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

May 2021 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: 0.2
Stjernebillede: Gemini
Angular diameter: 7.6"
Status: near greatest western elongation

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

Rektascension: 04h58m31s
Deklination: +25°07'55"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Gemini
Angular diameter: 10.0"
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: 04h21m40s
Deklination: +21°44'21"

Mars

Excellent
Tilsyneladende magnitude: 1.7
Stjernebillede: Cancer
Angular diameter: 4.4"
Status: near western quadrature

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

Rektascension: 06h57m29s
Deklination: +24°11'58"

Jupiter

Excellent
Tilsyneladende magnitude: -2.3
Stjernebillede: Pisces
Angular diameter: 39.0"
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: 22h09m57s
Deklination: -12°10'47"

Saturn

Excellent
Tilsyneladende magnitude: 0.6
Stjernebillede: Aquarius
Angular diameter: 17.1"
Status: near eastern quadrature

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

Rektascension: 21h04m26s
Deklination: -17°22'02"

Uranus

Fair
Tilsyneladende magnitude: 5.9
Stjernebillede: Taurus
Angular diameter: 3.4"
Status: near eastern quadrature

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

Rektascension: 02h36m45s
Deklination: +14°53'41"

Neptune

Fair
Tilsyneladende magnitude: 7.8
Stjernebillede: Pisces
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascension: 23h35m03s
Deklination: -03°53'24"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Gemini
Angular diameter: 11537.9"
Status: Moon illumination 9.0%

Observation tip: Moon illumination 9.0%; good for observing lunar surface detail

Rektascension: 05h56m41s
Deklination: +25°06'58"