December 1949 Dangaus reiškiniai

Stebėtojo vieta:Beijing (39.904°, 116.407°)

Mėnesio dangaus reiškinių apžvalga

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

Dienos dangaus reiškiniai

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

Planetary outlook

December 1949 mid-month observing conditions

Mercury

Excellent
Regimasis ryškis: -0.7
Žvaigždynas: Capricornus
Angular diameter: 5.1"
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

Rektascensija: 18h23m38s
Deklinacija: -25°32'41"

Venus

Excellent
Regimasis ryškis: -4.8
Žvaigždynas: Aquarius
Angular diameter: 34.2"
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

Rektascensija: 20h40m16s
Deklinacija: -20°17'39"

Mars

Excellent
Regimasis ryškis: 0.9
Žvaigždynas: Virgo
Angular diameter: 6.8"
Status: near eastern quadrature

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

Rektascensija: 11h46m07s
Deklinacija: +03°55'35"

Jupiter

Excellent
Regimasis ryškis: -2.0
Žvaigždynas: Aquarius
Angular diameter: 34.0"
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: 20h20m57s
Deklinacija: -20°05'47"

Saturn

Excellent
Regimasis ryškis: 0.8
Žvaigždynas: Virgo
Angular diameter: 18.0"
Status: near eastern quadrature

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

Rektascensija: 11h23m26s
Deklinacija: +06°02'20"

Uranus

Fair
Regimasis ryškis: 5.5
Žvaigždynas: Cancer
Angular diameter: 3.9"
Status: near eastern quadrature

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

Rektascensija: 06h14m53s
Deklinacija: +23°40'12"

Neptune

Fair
Regimasis ryškis: 8.0
Žvaigždynas: Libra
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascensija: 13h05m09s
Deklinacija: -05°13'50"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Libra
Angular diameter: 12664.4"
Status: Moon illumination 28.8%

Observation tip: Moon illumination 28.8%; good for observing lunar surface detail

Rektascensija: 13h05m24s
Deklinacija: -07°19'00"