December 1909 Himmelsereignisse

Beobachterstandort:Beijing (39.904°, 116.407°)

Monatliche Himmelsereignisse

23 Himmelereignisse insgesamt, einschließlich 4 Mondphasen und 2 Planetenereignisse.

Tägliche Himmelsereignisse

Alle Zeiten in Ortszeit (Asia/Shanghai)

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

Planetary outlook

December 1909 mid-month observing conditions

Mercury

Excellent
Scheinbare Helligkeit: -0.9
Sternbild: Sagittarius
Angular diameter: 4.8"
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

Rektaszension: 17h55m11s
Deklination: -25°18'26"

Venus

Excellent
Scheinbare Helligkeit: -4.7
Sternbild: Aquarius
Angular diameter: 28.8"
Status: near superior 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: 20h48m22s
Deklination: -19°59'09"

Mars

Excellent
Scheinbare Helligkeit: -0.4
Sternbild: Aries
Angular diameter: 11.1"
Status: near western quadrature

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

Rektaszension: 00h34m43s
Deklination: +03°45'44"

Jupiter

Excellent
Scheinbare Helligkeit: -1.9
Sternbild: Libra
Angular diameter: 34.7"
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: 12h44m01s
Deklination: -03°23'08"

Saturn

Excellent
Scheinbare Helligkeit: 0.5
Sternbild: Aries
Angular diameter: 18.7"
Status: near western quadrature

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

Rektaszension: 01h04m27s
Deklination: +04°02'03"

Uranus

Fair
Scheinbare Helligkeit: 5.9
Sternbild: Capricornus
Angular diameter: 3.4"
Status: near western quadrature

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

Rektaszension: 19h24m49s
Deklination: -22°28'22"

Neptune

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

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

Rektaszension: 07h20m16s
Deklination: +21°26'47"

Moon

Excellent
Scheinbare Helligkeit: -12.7
Sternbild: Capricornus
Angular diameter: 12064.7"
Status: Moon illumination 5.0%

Observation tip: Moon illumination 5.0%; good for observing lunar surface detail

Rektaszension: 19h20m23s
Deklination: -25°37'53"