January 1999 Astronomické jevy

Poloha pozorovatele:Beijing (39.904°, 116.407°)

Přehled měsíčních nebeských úkazů

20 celkem nebeských úkazů, včetně 4 fáze Měsíce a 1 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

January 1999 mid-month observing conditions

Mercury

Excellent
Zdánlivá magnituda: -0.5
Souhvězdí: Capricornus
Angular diameter: 4.9"
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: 18h52m09s
Deklinace: -23°57'46"

Venus

Excellent
Zdánlivá magnituda: -3.9
Souhvězdí: Aquarius
Angular diameter: 10.5"
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

Rektascenze: 21h03m21s
Deklinace: -18°24'34"

Mars

Excellent
Zdánlivá magnituda: 0.8
Souhvězdí: Libra
Angular diameter: 6.9"
Status: near eastern quadrature

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

Rektascenze: 13h35m43s
Deklinace: -07°50'26"

Jupiter

Excellent
Zdánlivá magnituda: -2.2
Souhvězdí: Pisces
Angular diameter: 36.7"
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: 23h40m36s
Deklinace: -03°23'57"

Saturn

Excellent
Zdánlivá magnituda: 0.4
Souhvězdí: Aries
Angular diameter: 18.1"
Status: near western quadrature

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

Rektascenze: 01h43m52s
Deklinace: +08°05'44"

Uranus

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

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

Rektascenze: 20h57m26s
Deklinace: -17°52'32"

Neptune

Fair
Zdánlivá magnituda: 7.9
Souhvězdí: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascenze: 20h14m59s
Deklinace: -19°31'04"

Moon

Excellent
Zdánlivá magnituda: -12.7
Souhvězdí: Sagittarius
Angular diameter: 11682.6"
Status: Moon illumination 7.2%

Observation tip: Moon illumination 7.2%; good for observing lunar surface detail

Rektascenze: 17h32m54s
Deklinace: -18°49'32"