December 1909 Astronomické jevy

Poloha pozorovatele:Beijing (39.904°, 116.407°)

Přehled měsíčních nebeských úkazů

23 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 1909 mid-month observing conditions

Mercury

Excellent
Zdánlivá magnituda: -0.9
Souhvězdí: 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

Rektascenze: 17h55m11s
Deklinace: -25°18'26"

Venus

Excellent
Zdánlivá magnituda: -4.7
Souhvězdí: 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

Rektascenze: 20h48m22s
Deklinace: -19°59'09"

Mars

Excellent
Zdánlivá magnituda: -0.4
Souhvězdí: 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

Rektascenze: 00h34m43s
Deklinace: +03°45'44"

Jupiter

Excellent
Zdánlivá magnituda: -1.9
Souhvězdí: 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

Rektascenze: 12h44m01s
Deklinace: -03°23'08"

Saturn

Excellent
Zdánlivá magnituda: 0.5
Souhvězdí: 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

Rektascenze: 01h04m27s
Deklinace: +04°02'03"

Uranus

Fair
Zdánlivá magnituda: 5.9
Souhvězdí: Capricornus
Angular diameter: 3.4"
Status: near western quadrature

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

Rektascenze: 19h24m49s
Deklinace: -22°28'22"

Neptune

Fair
Zdánlivá magnituda: 7.8
Souhvězdí: Cancer
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascenze: 07h20m16s
Deklinace: +21°26'47"

Moon

Excellent
Zdánlivá magnituda: -12.7
Souhvězdí: Capricornus
Angular diameter: 12064.7"
Status: Moon illumination 5.0%

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

Rektascenze: 19h20m23s
Deklinace: -25°37'53"