September 2021 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

September 2021 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: 0.2
Stjernebillede: Libra
Angular diameter: 7.1"
Status: near superior conjunction

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

Rektascension: 13h05m55s
Deklination: -09°57'34"

Venus

Excellent
Tilsyneladende magnitude: -4.1
Stjernebillede: Scorpius
Angular diameter: 16.6"
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: 14h08m24s
Deklination: -14°08'34"

Mars

Excellent
Tilsyneladende magnitude: 1.7
Stjernebillede: Libra
Angular diameter: 3.6"
Status: near western quadrature

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

Rektascension: 12h01m16s
Deklination: +00°45'08"

Jupiter

Excellent
Tilsyneladende magnitude: -2.8
Stjernebillede: Aquarius
Angular diameter: 48.0"
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: 21h47m14s
Deklination: -14°37'10"

Saturn

Excellent
Tilsyneladende magnitude: 0.4
Stjernebillede: Aquarius
Angular diameter: 18.1"
Status: near western quadrature

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

Rektascension: 20h40m13s
Deklination: -19°12'02"

Uranus

Fair
Tilsyneladende magnitude: 5.7
Stjernebillede: Taurus
Angular diameter: 3.7"
Status: near eastern quadrature

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

Rektascension: 02h48m45s
Deklination: +15°47'27"

Neptune

Fair
Tilsyneladende magnitude: 7.7
Stjernebillede: Pisces
Angular diameter: 2.4"
Status: near western quadrature

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

Rektascension: 23h31m36s
Deklination: -04°20'24"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Capricornus
Angular diameter: 12492.4"
Status: Moon illumination 62.9%

Observation tip: Moon illumination 62.9%; good for observing lunar surface detail

Rektascension: 18h32m13s
Deklination: -25°57'35"