December 1921 Himmelsereignisse

Beobachterstandort:Beijing (39.904°, 116.407°)

Monatliche Himmelsereignisse

20 Himmelereignisse insgesamt, einschließlich 4 Mondphasen und 1 Planetenereignisse.

Tägliche Himmelsereignisse

Alle Zeiten in Ortszeit (Asia/Shanghai)

Group Datum Sonnenaufgang/-untergang Mondaufgang/-untergang Mondphase Himmelsereignisse

Planetary outlook

December 1921 mid-month observing conditions

Mercury

Excellent
Scheinbare Helligkeit: -0.9
Sternbild: Sagittarius
Angular diameter: 4.7"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektaszension: 16h56m33s
Deklination: -23°09'32"

Venus

Excellent
Scheinbare Helligkeit: -3.9
Sternbild: Sagittarius
Angular diameter: 10.2"
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

Rektaszension: 16h29m40s
Deklination: -21°10'25"

Mars

Excellent
Scheinbare Helligkeit: 1.5
Sternbild: Libra
Angular diameter: 4.9"
Status: near eastern quadrature

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

Rektaszension: 13h27m52s
Deklination: -07°47'23"

Jupiter

Excellent
Scheinbare Helligkeit: -1.9
Sternbild: Libra
Angular diameter: 34.3"
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

Rektaszension: 12h57m59s
Deklination: -04°51'26"

Saturn

Excellent
Scheinbare Helligkeit: 0.9
Sternbild: Libra
Angular diameter: 17.1"
Status: near eastern quadrature

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

Rektaszension: 12h27m54s
Deklination: -00°33'22"

Uranus

Fair
Scheinbare Helligkeit: 5.9
Sternbild: Pisces
Angular diameter: 3.5"
Status: near western quadrature

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

Rektaszension: 22h32m34s
Deklination: -09°59'21"

Neptune

Fair
Scheinbare Helligkeit: 7.8
Sternbild: Leo
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektaszension: 09h13m06s
Deklination: +16°12'40"

Moon

Excellent
Scheinbare Helligkeit: -12.7
Sternbild: Gemini
Angular diameter: 12555.3"
Status: Moon illumination 99.8%

Observation tip: Moon illumination 99.8%; good for observing lunar surface detail

Rektaszension: 05h21m48s
Deklination: +18°34'02"