December 2012 Astronomické jevy

Poloha pozorovatele:Beijing (39.904°, 116.407°)

Přehled měsíčních nebeských úkazů

19 celkem nebeských úkazů, včetně 4 fáze Měsíce a 2 planetární jevy.

Denní nebeské úkazy

Všechny časy jsou v místním čase (Asia/Shanghai)

Group Datum Východ/západ Slunce Východ/západ Měsíce Fáze Měsíce Astronomické jevy

Planetary outlook

December 2012 mid-month observing conditions

Mercury

Excellent
Zdánlivá magnituda: -0.5
Souhvězdí: Sagittarius
Angular diameter: 5.5"
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

Rektascenze: 16h14m38s
Deklinace: -19°58'46"

Venus

Excellent
Zdánlivá magnituda: -3.9
Souhvězdí: Scorpius
Angular diameter: 11.3"
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

Rektascenze: 15h46m19s
Deklinace: -18°31'53"

Mars

Excellent
Zdánlivá magnituda: 1.2
Souhvězdí: Capricornus
Angular diameter: 4.3"
Status: near western quadrature

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

Rektascenze: 19h33m15s
Deklinace: -22°53'14"

Jupiter

Excellent
Zdánlivá magnituda: -2.8
Souhvězdí: Gemini
Angular diameter: 48.1"
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

Rektascenze: 04h32m39s
Deklinace: +21°08'53"

Saturn

Excellent
Zdánlivá magnituda: 0.7
Souhvězdí: Scorpius
Angular diameter: 15.9"
Status: near eastern quadrature

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

Rektascenze: 14h25m47s
Deklinace: -12°01'21"

Uranus

Fair
Zdánlivá magnituda: 5.9
Souhvězdí: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

Rektascenze: 00h18m04s
Deklinace: +01°10'31"

Neptune

Fair
Zdánlivá magnituda: 7.8
Souhvězdí: Pisces
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascenze: 22h11m50s
Deklinace: -11°48'08"

Moon

Excellent
Zdánlivá magnituda: -12.7
Souhvězdí: Capricornus
Angular diameter: 12884.1"
Status: Moon illumination 4.1%

Observation tip: Moon illumination 4.1%; good for observing lunar surface detail

Rektascenze: 19h09m33s
Deklinace: -18°23'31"