December 1938 Dangaus reiškiniai

Stebėtojo vieta:Beijing (39.904°, 116.407°)

Mėnesio dangaus reiškinių apžvalga

17 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 1938 mid-month observing conditions

Mercury

Fair
Regimasis ryškis: 5.5
Žvaigždynas: Sagittarius
Angular diameter: 9.9"
Status: near greatest eastern elongation

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascensija: 17h21m03s
Deklinacija: -21°10'43"

Venus

Excellent
Regimasis ryškis: -4.9
Žvaigždynas: Scorpius
Angular diameter: 48.7"
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: 15h12m43s
Deklinacija: -15°15'29"

Mars

Excellent
Regimasis ryškis: 1.6
Žvaigždynas: Scorpius
Angular diameter: 4.5"
Status: near eastern quadrature

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

Rektascensija: 14h00m19s
Deklinacija: -11°10'16"

Jupiter

Excellent
Regimasis ryškis: -2.2
Žvaigždynas: Aquarius
Angular diameter: 37.0"
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: 21h59m47s
Deklinacija: -13°21'30"

Saturn

Excellent
Regimasis ryškis: 0.6
Žvaigždynas: Aries
Angular diameter: 18.4"
Status: near western quadrature

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

Rektascensija: 00h45m19s
Deklinacija: +02°04'30"

Uranus

Fair
Regimasis ryškis: 5.7
Žvaigždynas: Taurus
Angular diameter: 3.7"
Status: near western quadrature

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

Rektascensija: 02h48m23s
Deklinacija: +15°49'16"

Neptune

Fair
Regimasis ryškis: 7.9
Žvaigždynas: Virgo
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascensija: 11h37m13s
Deklinacija: +03°42'55"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Libra
Angular diameter: 12241.6"
Status: Moon illumination 39.9%

Observation tip: Moon illumination 39.9%; good for observing lunar surface detail

Rektascensija: 12h09m52s
Deklinacija: -04°57'08"