January 1990 Zeru gertakariak

Behatzailearen kokapena:Beijing (39.904°, 116.407°)

Planeten ikuspegi orokorra

24 guztira zeru-gertaerak, barne 4 ilargi-faseak eta 4 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

January 1990 mid-month observing conditions

Mercury

Excellent
Itxurazko magnitudea: 1.7
Izardiа: Capricornus
Angular diameter: 9.6"
Status: near greatest eastern elongation

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

Igoera zuzena: 18h49m43s
Deklinazioa: -19°33'09"

Venus

Excellent
Itxurazko magnitudea: -4.3
Izardiа: Aquarius
Angular diameter: 62.1"
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

Igoera zuzena: 20h08m02s
Deklinazioa: -14°46'19"

Mars

Excellent
Itxurazko magnitudea: 1.5
Izardiа: Sagittarius
Angular diameter: 4.2"
Status: near eastern quadrature

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

Igoera zuzena: 17h14m29s
Deklinazioa: -23°13'00"

Jupiter

Excellent
Itxurazko magnitudea: -2.7
Izardiа: Cancer
Angular diameter: 46.6"
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: 06h14m55s
Deklinazioa: +23°18'50"

Saturn

Excellent
Itxurazko magnitudea: 0.5
Izardiа: Capricornus
Angular diameter: 15.1"
Status: near eastern quadrature

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

Igoera zuzena: 19h14m39s
Deklinazioa: -22°03'13"

Uranus

Fair
Itxurazko magnitudea: 5.8
Izardiа: Capricornus
Angular diameter: 3.5"
Status: near eastern quadrature

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

Igoera zuzena: 18h28m44s
Deklinazioa: -23°33'03"

Neptune

Fair
Itxurazko magnitudea: 7.9
Izardiа: Capricornus
Angular diameter: 2.2"
Status: near eastern quadrature

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

Igoera zuzena: 18h54m11s
Deklinazioa: -22°00'29"

Moon

Excellent
Itxurazko magnitudea: -12.7
Izardiа: Virgo
Angular diameter: 11885.8"
Status: Moon illumination 84.4%

Observation tip: Moon illumination 84.4%; good for observing lunar surface detail

Igoera zuzena: 10h47m20s
Deklinazioa: +05°19'40"