February 1990 Dangaus reiškiniai

Stebėtojo vieta:Beijing (39.904°, 116.407°)

Mėnesio dangaus reiškinių apžvalga

23 astronominių įvykių iš viso, įskaitant 4 Mėnulio fazes ir 1 planetinius įvykius.

Dienos dangaus reiškiniai

Visi laikai nurodyti vietos laiku (Asia/Shanghai)

Group Data Saulėtekis/Saulėlydis Mėnulio patekėjimas/leidimasis Mėnulio fazė Dangaus reiškiniai

Planetary outlook

February 1990 mid-month observing conditions

Mercury

Excellent
Regimasis ryškis: -0.2
Žvaigždynas: 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

Rektascensija: 20h26m39s
Deklinacija: -20°17'34"

Venus

Excellent
Regimasis ryškis: -4.9
Žvaigždynas: 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

Rektascensija: 19h29m42s
Deklinacija: -15°04'36"

Mars

Excellent
Regimasis ryškis: 1.3
Žvaigždynas: 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

Rektascensija: 18h51m54s
Deklinacija: -23°28'48"

Jupiter

Excellent
Regimasis ryškis: -2.5
Žvaigždynas: 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

Rektascensija: 06h04m13s
Deklinacija: +23°25'42"

Saturn

Excellent
Regimasis ryškis: 0.6
Žvaigždynas: 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

Rektascensija: 19h29m33s
Deklinacija: -21°35'59"

Uranus

Fair
Regimasis ryškis: 5.8
Žvaigždynas: Capricornus
Angular diameter: 3.5"
Status: near eastern quadrature

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

Rektascensija: 18h35m49s
Deklinacija: -23°28'06"

Neptune

Fair
Regimasis ryškis: 7.9
Žvaigždynas: Capricornus
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascensija: 18h58m45s
Deklinacija: -21°54'13"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Libra
Angular diameter: 11544.9"
Status: Moon illumination 75.2%

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

Rektascensija: 13h27m59s
Deklinacija: -14°32'07"