February 1991 Gökyüzü Olayları

Observer Location:Beijing (39.904°, 116.407°)

Gezegenlere Genel Bakış

20 sky events total, including 3 moon phases and 0 planetary events.

Gökyüzü Olayları

All times are in local time (Asia/Shanghai)

Group Tarih Sunrise/Sunset Moonrise/Moonset Moon Phase Gökyüzü Olayları

Planetary outlook

February 1991 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.7
Takımyıldız: Aquarius
Angular diameter: 4.9"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 21h09m48s
Gerilim: -18°25'35"

Venus

Excellent
Apparent magnitude: -3.9
Takımyıldız: Pisces
Angular diameter: 11.2"
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

Right ascension: 23h28m30s
Gerilim: -04°47'12"

Mars

Excellent
Apparent magnitude: 0.2
Takımyıldız: Gemini
Angular diameter: 8.7"
Status: near western quadrature

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

Right ascension: 04h22m27s
Gerilim: +23°51'02"

Jupiter

Excellent
Apparent magnitude: -2.6
Takımyıldız: Leo
Angular diameter: 45.3"
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: 08h35m57s
Gerilim: +19°26'01"

Saturn

Excellent
Apparent magnitude: 0.7
Takımyıldız: Aquarius
Angular diameter: 15.3"
Status: near eastern quadrature

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

Right ascension: 20h12m47s
Gerilim: -20°08'43"

Uranus

Fair
Apparent magnitude: 5.8
Takımyıldız: Capricornus
Angular diameter: 3.5"
Status: near eastern quadrature

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

Right ascension: 18h53m19s
Gerilim: -23°12'24"

Neptune

Fair
Apparent magnitude: 7.9
Takımyıldız: Capricornus
Angular diameter: 2.2"
Status: near eastern quadrature

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

Right ascension: 19h07m50s
Gerilim: -21°43'52"

Moon

Excellent
Apparent magnitude: -12.7
Takımyıldız: Pisces
Angular diameter: 11889.4"
Status: Moon illumination 0.1%

Observation tip: Moon illumination 0.1%; good for observing lunar surface detail

Right ascension: 22h00m31s
Gerilim: -09°18'38"