April 1940 Dangaus reiškiniai

Stebėtojo vieta:Beijing (39.904°, 116.407°)

Mėnesio dangaus reiškinių apžvalga

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

April 1940 mid-month observing conditions

Mercury

Excellent
Regimasis ryškis: 0.4
Žvaigždynas: Pisces
Angular diameter: 7.4"
Status: near inferior conjunction

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

Rektascensija: 23h54m29s
Deklinacija: -03°11'41"

Venus

Excellent
Regimasis ryškis: -4.4
Žvaigždynas: Gemini
Angular diameter: 22.8"
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: 04h33m28s
Deklinacija: +25°17'42"

Mars

Excellent
Regimasis ryškis: 1.6
Žvaigždynas: Gemini
Angular diameter: 4.4"
Status: near western quadrature

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

Rektascensija: 04h27m23s
Deklinacija: +22°43'41"

Jupiter

Excellent
Regimasis ryškis: -2.1
Žvaigždynas: Aries
Angular diameter: 33.1"
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: 01h25m09s
Deklinacija: +07°48'10"

Saturn

Excellent
Regimasis ryškis: 0.4
Žvaigždynas: Taurus
Angular diameter: 16.2"
Status: near western quadrature

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

Rektascensija: 02h06m43s
Deklinacija: +10°29'10"

Uranus

Fair
Regimasis ryškis: 5.9
Žvaigždynas: Taurus
Angular diameter: 3.4"
Status: near western quadrature

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

Rektascensija: 03h12m12s
Deklinacija: +17°35'16"

Neptune

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

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

Rektascensija: 11h37m30s
Deklinacija: +03°47'44"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Cancer
Angular diameter: 12250.5"
Status: Moon illumination 43.9%

Observation tip: Moon illumination 43.9%; good for observing lunar surface detail

Rektascensija: 07h13m38s
Deklinacija: +17°01'53"