April 2017 Dangaus reiškiniai

Stebėtojo vieta:Beijing (39.904°, 116.407°)

Mėnesio dangaus reiškinių apžvalga

22 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 2017 mid-month observing conditions

Mercury

Good
Regimasis ryškis: 3.8
Žvaigždynas: Taurus
Angular diameter: 10.9"
Status: near superior conjunction

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

Rektascensija: 02h01m33s
Deklinacija: +15°15'59"

Venus

Excellent
Regimasis ryškis: -4.7
Žvaigždynas: Pisces
Angular diameter: 49.0"
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: 23h41m29s
Deklinacija: +02°55'06"

Mars

Excellent
Regimasis ryškis: 1.5
Žvaigždynas: Taurus
Angular diameter: 4.1"
Status: near western quadrature

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

Rektascensija: 03h32m14s
Deklinacija: +19°38'44"

Jupiter

Excellent
Regimasis ryškis: -2.5
Žvaigždynas: Libra
Angular diameter: 44.2"
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: 13h06m23s
Deklinacija: -05°21'05"

Saturn

Excellent
Regimasis ryškis: 0.3
Žvaigždynas: Sagittarius
Angular diameter: 17.4"
Status: near eastern quadrature

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

Rektascensija: 17h50m12s
Deklinacija: -22°03'44"

Uranus

Fair
Regimasis ryškis: 6.0
Žvaigždynas: Aries
Angular diameter: 3.4"
Status: near eastern quadrature

Observation tip: A telescope is required; Binoculars or a telescope are recommended

Rektascensija: 01h31m36s
Deklinacija: +08°58'25"

Neptune

Fair
Regimasis ryškis: 7.8
Žvaigždynas: Pisces
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascensija: 22h59m36s
Deklinacija: -07°22'33"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Sagittarius
Angular diameter: 11477.4"
Status: Moon illumination 87.4%

Observation tip: Moon illumination 87.4%; good for observing lunar surface detail

Rektascensija: 16h23m05s
Deklinacija: -16°25'25"