October 1999 Dangaus reiškiniai

Stebėtojo vieta:Beijing (39.904°, 116.407°)

Mėnesio dangaus reiškinių apžvalga

22 astronominių įvykių iš viso, įskaitant 5 Mėnulio fazes ir 3 planetinius įvykius.

Dienos dangaus reiškiniai

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

Planetary outlook

October 1999 mid-month observing conditions

Mercury

Excellent
Regimasis ryškis: -0.2
Žvaigždynas: Scorpius
Angular diameter: 5.7"
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: 14h41m46s
Deklinacija: -17°57'30"

Venus

Excellent
Regimasis ryškis: -4.7
Žvaigždynas: Virgo
Angular diameter: 29.2"
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: 10h27m58s
Deklinacija: +07°56'54"

Mars

Excellent
Regimasis ryškis: 0.6
Žvaigždynas: Sagittarius
Angular diameter: 6.5"
Status: near western quadrature

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

Rektascensija: 17h53m25s
Deklinacija: -25°12'18"

Jupiter

Excellent
Regimasis ryškis: -2.9
Žvaigždynas: Aries
Angular diameter: 49.6"
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: 01h58m03s
Deklinacija: +10°24'40"

Saturn

Excellent
Regimasis ryškis: -0.1
Žvaigždynas: Taurus
Angular diameter: 20.1"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

Rektascensija: 02h55m01s
Deklinacija: +13°58'05"

Uranus

Fair
Regimasis ryškis: 5.8
Žvaigždynas: Aquarius
Angular diameter: 3.6"
Status: near western quadrature

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

Rektascensija: 21h02m14s
Deklinacija: -17°36'26"

Neptune

Fair
Regimasis ryškis: 7.8
Žvaigždynas: Aquarius
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascensija: 20h15m04s
Deklinacija: -19°33'12"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Sagittarius
Angular diameter: 11482.3"
Status: Moon illumination 26.2%

Observation tip: Moon illumination 26.2%; good for observing lunar surface detail

Rektascensija: 17h28m35s
Deklinacija: -19°31'10"