December 1978 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 1978 mid-month observing conditions

Mercury

Excellent
Regimasis ryškis: 0.4
Žvaigždynas: Sagittarius
Angular diameter: 8.5"
Status: near greatest eastern elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascensija: 16h16m01s
Deklinacija: -18°23'30"

Venus

Excellent
Regimasis ryškis: -4.9
Žvaigždynas: Scorpius
Angular diameter: 39.7"
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: 14h42m26s
Deklinacija: -12°51'16"

Mars

Excellent
Regimasis ryškis: 1.2
Žvaigždynas: Capricornus
Angular diameter: 3.9"
Status: near western quadrature

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

Rektascensija: 18h07m31s
Deklinacija: -24°15'29"

Jupiter

Excellent
Regimasis ryškis: -2.5
Žvaigždynas: Leo
Angular diameter: 43.5"
Status: near eastern 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: 08h44m06s
Deklinacija: +18°39'44"

Saturn

Excellent
Regimasis ryškis: 0.7
Žvaigždynas: Virgo
Angular diameter: 18.3"
Status: near eastern quadrature

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

Rektascensija: 11h03m14s
Deklinacija: +07°59'35"

Uranus

Fair
Regimasis ryškis: 5.6
Žvaigždynas: Scorpius
Angular diameter: 3.6"
Status: near eastern quadrature

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

Rektascensija: 15h05m56s
Deklinacija: -17°06'23"

Neptune

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

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

Rektascensija: 17h09m13s
Deklinacija: -21°32'28"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Gemini
Angular diameter: 11625.1"
Status: Moon illumination 99.6%

Observation tip: Moon illumination 99.6%; good for observing lunar surface detail

Rektascensija: 05h51m47s
Deklinacija: +18°27'36"