July 1921 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

22 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

July 1921 mid-month observing conditions

Mercury

Good
Tilsyneladende magnitude: 3.3
Stjernebillede: Cancer
Angular diameter: 10.9"
Status: near greatest eastern elongation

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascension: 06h50m02s
Deklination: +18°11'22"

Venus

Excellent
Tilsyneladende magnitude: -4.2
Stjernebillede: Gemini
Angular diameter: 20.6"
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: 04h22m08s
Deklination: +18°27'32"

Mars

Excellent
Tilsyneladende magnitude: 1.6
Stjernebillede: Cancer
Angular diameter: 3.6"
Status: near eastern quadrature

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

Rektascension: 07h15m39s
Deklination: +23°15'05"

Jupiter

Excellent
Tilsyneladende magnitude: -1.8
Stjernebillede: Virgo
Angular diameter: 33.0"
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: 11h08m01s
Deklination: +06°48'50"

Saturn

Excellent
Tilsyneladende magnitude: 1.1
Stjernebillede: Virgo
Angular diameter: 16.7"
Status: near western quadrature

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

Rektascension: 11h28m06s
Deklination: +05°43'45"

Uranus

Fair
Tilsyneladende magnitude: 5.8
Stjernebillede: Pisces
Angular diameter: 3.6"
Status: near eastern quadrature

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

Rektascension: 22h44m38s
Deklination: -08°49'48"

Neptune

Fair
Tilsyneladende magnitude: 8.0
Stjernebillede: Leo
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascension: 09h00m36s
Deklination: +17°04'59"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Scorpius
Angular diameter: 11840.8"
Status: Moon illumination 77.9%

Observation tip: Moon illumination 77.9%; good for observing lunar surface detail

Rektascension: 15h36m31s
Deklination: -16°33'37"