December 2008 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

Visi laikai nurodyti vietos laiku (Asia/Shanghai)

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

Planetary outlook

December 2008 mid-month observing conditions

Mercury

Excellent
Regimasis ryškis: -0.8
Žvaigždynas: Capricornus
Angular diameter: 4.9"
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: 18h17m51s
Deklinacija: -25°29'39"

Venus

Excellent
Regimasis ryškis: -4.2
Žvaigždynas: Aquarius
Angular diameter: 18.3"
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: 20h44m37s
Deklinacija: -20°23'20"

Mars

Excellent
Regimasis ryškis: 1.2
Žvaigždynas: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

Rektascensija: 17h19m56s
Deklinacija: -23°40'09"

Jupiter

Excellent
Regimasis ryškis: -2.0
Žvaigždynas: Capricornus
Angular diameter: 33.2"
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: 19h48m32s
Deklinacija: -21°29'46"

Saturn

Excellent
Regimasis ryškis: 0.9
Žvaigždynas: Virgo
Angular diameter: 17.9"
Status: near eastern quadrature

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

Rektascensija: 11h31m55s
Deklinacija: +05°10'42"

Uranus

Fair
Regimasis ryškis: 5.9
Žvaigždynas: Pisces
Angular diameter: 3.5"
Status: near western quadrature

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

Rektascensija: 23h20m15s
Deklinacija: -05°06'26"

Neptune

Fair
Regimasis ryškis: 7.8
Žvaigždynas: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascensija: 21h37m50s
Deklinacija: -14°31'02"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Cancer
Angular diameter: 12894.2"
Status: Moon illumination 92.1%

Observation tip: Moon illumination 92.1%; good for observing lunar surface detail

Rektascensija: 07h53m14s
Deklinacija: +22°10'23"