December 2008 Zeru gertakariak

Behatzailearen kokapena:Beijing (39.904°, 116.407°)

Planeten ikuspegi orokorra

24 guztira zeru-gertaerak, barne 4 ilargi-faseak eta 1 planetako gertaerak.

Zeru gertakariak

Ordu guztiak tokiko orduan daude (Asia/Shanghai)

Group Data Egunsentia/ilunabarra Ilargi-irteera/ilargi-sarrera Ilargi-fasea Zeru gertakariak

Planetary outlook

December 2008 mid-month observing conditions

Mercury

Excellent
Itxurazko magnitudea: -0.8
Izardiа: Capricornus
Angular diameter: 4.9"
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

Igoera zuzena: 18h17m51s
Deklinazioa: -25°29'39"

Venus

Excellent
Itxurazko magnitudea: -4.2
Izardiа: Aquarius
Angular diameter: 18.3"
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

Igoera zuzena: 20h44m37s
Deklinazioa: -20°23'20"

Mars

Excellent
Itxurazko magnitudea: 1.2
Izardiа: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

Igoera zuzena: 17h19m56s
Deklinazioa: -23°40'09"

Jupiter

Excellent
Itxurazko magnitudea: -2.0
Izardiа: Capricornus
Angular diameter: 33.2"
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

Igoera zuzena: 19h48m32s
Deklinazioa: -21°29'46"

Saturn

Excellent
Itxurazko magnitudea: 0.9
Izardiа: Virgo
Angular diameter: 17.9"
Status: near eastern quadrature

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

Igoera zuzena: 11h31m55s
Deklinazioa: +05°10'42"

Uranus

Fair
Itxurazko magnitudea: 5.9
Izardiа: Pisces
Angular diameter: 3.5"
Status: near western quadrature

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

Igoera zuzena: 23h20m15s
Deklinazioa: -05°06'26"

Neptune

Fair
Itxurazko magnitudea: 7.8
Izardiа: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Igoera zuzena: 21h37m50s
Deklinazioa: -14°31'02"

Moon

Excellent
Itxurazko magnitudea: -12.7
Izardiа: Cancer
Angular diameter: 12894.2"
Status: Moon illumination 92.1%

Observation tip: Moon illumination 92.1%; good for observing lunar surface detail

Igoera zuzena: 07h53m14s
Deklinazioa: +22°10'23"