December 1998 Zeru gertakariak

Behatzailearen kokapena:Beijing (39.904°, 116.407°)

Planeten ikuspegi orokorra

24 guztira zeru-gertaerak, barne 4 ilargi-faseak eta 2 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 1998 mid-month observing conditions

Mercury

Excellent
Itxurazko magnitudea: -0.1
Izardiа: Sagittarius
Angular diameter: 7.5"
Status: near greatest eastern 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: 16h03m25s
Deklinazioa: -18°01'13"

Venus

Excellent
Itxurazko magnitudea: -3.9
Izardiа: Capricornus
Angular diameter: 10.0"
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: 18h17m45s
Deklinazioa: -24°10'33"

Mars

Excellent
Itxurazko magnitudea: 1.2
Izardiа: Libra
Angular diameter: 5.6"
Status: near eastern quadrature

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

Igoera zuzena: 12h38m12s
Deklinazioa: -02°10'07"

Jupiter

Excellent
Itxurazko magnitudea: -2.4
Izardiа: Pisces
Angular diameter: 40.1"
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: 23h24m36s
Deklinazioa: -05°13'43"

Saturn

Excellent
Itxurazko magnitudea: 0.3
Izardiа: Aries
Angular diameter: 19.1"
Status: near western quadrature

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

Igoera zuzena: 01h43m54s
Deklinazioa: +07°56'25"

Uranus

Fair
Itxurazko magnitudea: 5.9
Izardiа: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

Igoera zuzena: 20h51m03s
Deklinazioa: -18°18'53"

Neptune

Fair
Itxurazko magnitudea: 7.9
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: 20h10m27s
Deklinazioa: -19°44'56"

Moon

Excellent
Itxurazko magnitudea: -12.7
Izardiа: Scorpius
Angular diameter: 11468.2"
Status: Moon illumination 14.0%

Observation tip: Moon illumination 14.0%; good for observing lunar surface detail

Igoera zuzena: 14h33m41s
Deklinazioa: -09°56'09"