July 1990 வான் நிகழ்வுகள்

Observer Location:Beijing (39.904°, 116.407°)

கோள்களின் கண்ணோட்டம்

27 sky events total, including 4 moon phases and 4 planetary events.

வான நிகழ்வுகள்

All times are in local time (Asia/Shanghai)

Group தேதி Sunrise/Sunset Moonrise/Moonset Moon Phase வான் நிகழ்வுகள்

Planetary outlook

July 1990 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.9
நட்சத்திர மண்டலம்: Leo
Angular diameter: 5.3"
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

Right ascension: 08h34m41s
விலக்கம்: +20°33'30"

Venus

Excellent
Apparent magnitude: -3.9
நட்சத்திர மண்டலம்: Gemini
Angular diameter: 11.7"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

Right ascension: 05h33m14s
விலக்கம்: +22°19'01"

Mars

Excellent
Apparent magnitude: 0.1
நட்சத்திர மண்டலம்: Taurus
Angular diameter: 8.4"
Status: near eastern quadrature

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

Right ascension: 02h00m41s
விலக்கம்: +10°05'43"

Jupiter

Excellent
Apparent magnitude: -1.8
நட்சத்திர மண்டலம்: Cancer
Angular diameter: 31.6"
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

Right ascension: 07h37m05s
விலக்கம்: +21°48'00"

Saturn

Excellent
Apparent magnitude: -0.0
நட்சத்திர மண்டலம்: Capricornus
Angular diameter: 18.5"
Status: near western quadrature

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

Right ascension: 19h35m01s
விலக்கம்: -21°34'14"

Uranus

Fair
Apparent magnitude: 5.6
நட்சத்திர மண்டலம்: Capricornus
Angular diameter: 3.8"
Status: near western quadrature

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

Right ascension: 18h30m30s
விலக்கம்: -23°35'07"

Neptune

Fair
Apparent magnitude: 7.8
நட்சத்திர மண்டலம்: Capricornus
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 18h55m51s
விலக்கம்: -21°56'40"

Moon

Excellent
Apparent magnitude: -12.7
நட்சத்திர மண்டலம்: Aries
Angular diameter: 12446.3"
Status: Moon illumination 55.3%

Observation tip: Moon illumination 55.3%; good for observing lunar surface detail

Right ascension: 00h52m16s
விலக்கம்: +10°55'56"