December 1984 Dangaus reiškiniai

Stebėtojo vieta:Beijing (39.904°, 116.407°)

Mėnesio dangaus reiškinių apžvalga

24 astronominių įvykių iš viso, įskaitant 4 Mėnulio fazes ir 3 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

December 1984 mid-month observing conditions

Mercury

Fair
Regimasis ryškis: 5.9
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: 17h26m41s
Deklinacija: -21°17'25"

Venus

Excellent
Regimasis ryškis: -4.2
Žvaigždynas: Aquarius
Angular diameter: 17.3"
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

Rektascensija: 20h39m24s
Deklinacija: -20°41'57"

Mars

Excellent
Regimasis ryškis: 0.8
Žvaigždynas: Aquarius
Angular diameter: 5.8"
Status: near western quadrature

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

Rektascensija: 21h39m41s
Deklinacija: -15°17'02"

Jupiter

Excellent
Regimasis ryškis: -1.9
Žvaigždynas: Capricornus
Angular diameter: 32.6"
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: 19h16m20s
Deklinacija: -22°30'44"

Saturn

Excellent
Regimasis ryškis: 0.6
Žvaigždynas: Scorpius
Angular diameter: 15.5"
Status: near eastern quadrature

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

Rektascensija: 15h24m30s
Deklinacija: -16°32'17"

Uranus

Fair
Regimasis ryškis: 5.7
Žvaigždynas: Sagittarius
Angular diameter: 3.5"
Status: near eastern quadrature

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

Rektascensija: 16h52m07s
Deklinacija: -22°31'29"

Neptune

Fair
Regimasis ryškis: 8.0
Žvaigždynas: Capricornus
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascensija: 18h03m38s
Deklinacija: -22°19'29"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Virgo
Angular diameter: 12504.4"
Status: Moon illumination 57.4%

Observation tip: Moon illumination 57.4%; good for observing lunar surface detail

Rektascensija: 11h11m50s
Deklinacija: +10°35'06"