February 1990 Astronomické jevy

Poloha pozorovatele:Beijing (39.904°, 116.407°)

Přehled měsíčních nebeských úkazů

23 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

February 1990 mid-month observing conditions

Mercury

Excellent
Zdánlivá magnituda: -0.2
Souhvězdí: Aquarius
Angular diameter: 5.6"
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: 20h26m39s
Deklinace: -20°17'34"

Venus

Excellent
Zdánlivá magnituda: -4.9
Souhvězdí: Capricornus
Angular diameter: 45.8"
Status: near greatest eastern 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: 19h29m42s
Deklinace: -15°04'36"

Mars

Excellent
Zdánlivá magnituda: 1.3
Souhvězdí: Capricornus
Angular diameter: 4.6"
Status: near eastern quadrature

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

Rektascenze: 18h51m54s
Deklinace: -23°28'48"

Jupiter

Excellent
Zdánlivá magnituda: -2.5
Souhvězdí: Cancer
Angular diameter: 43.4"
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: 06h04m13s
Deklinace: +23°25'42"

Saturn

Excellent
Zdánlivá magnituda: 0.6
Souhvězdí: Capricornus
Angular diameter: 15.4"
Status: near eastern quadrature

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

Rektascenze: 19h29m33s
Deklinace: -21°35'59"

Uranus

Fair
Zdánlivá magnituda: 5.8
Souhvězdí: Capricornus
Angular diameter: 3.5"
Status: near eastern quadrature

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

Rektascenze: 18h35m49s
Deklinace: -23°28'06"

Neptune

Fair
Zdánlivá magnituda: 7.9
Souhvězdí: Capricornus
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascenze: 18h58m45s
Deklinace: -21°54'13"

Moon

Excellent
Zdánlivá magnituda: -12.7
Souhvězdí: Libra
Angular diameter: 11544.9"
Status: Moon illumination 75.2%

Observation tip: Moon illumination 75.2%; good for observing lunar surface detail

Rektascenze: 13h27m59s
Deklinace: -14°32'07"