July 1990 Himmelsereignisse

Beobachterstandort:Beijing (39.904°, 116.407°)

Monatliche Himmelsereignisse

27 Himmelereignisse insgesamt, einschließlich 4 Mondphasen und 4 Planetenereignisse.

Tägliche Himmelsereignisse

Alle Zeiten in Ortszeit (Asia/Shanghai)

Group Datum Sonnenaufgang/-untergang Mondaufgang/-untergang Mondphase Himmelsereignisse

Planetary outlook

July 1990 mid-month observing conditions

Mercury

Excellent
Scheinbare Helligkeit: -0.9
Sternbild: 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

Rektaszension: 08h34m41s
Deklination: +20°33'30"

Venus

Excellent
Scheinbare Helligkeit: -3.9
Sternbild: 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

Rektaszension: 05h33m14s
Deklination: +22°19'01"

Mars

Excellent
Scheinbare Helligkeit: 0.1
Sternbild: 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

Rektaszension: 02h00m41s
Deklination: +10°05'43"

Jupiter

Excellent
Scheinbare Helligkeit: -1.8
Sternbild: 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

Rektaszension: 07h37m05s
Deklination: +21°48'00"

Saturn

Excellent
Scheinbare Helligkeit: -0.0
Sternbild: 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

Rektaszension: 19h35m01s
Deklination: -21°34'14"

Uranus

Fair
Scheinbare Helligkeit: 5.6
Sternbild: Capricornus
Angular diameter: 3.8"
Status: near western quadrature

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

Rektaszension: 18h30m30s
Deklination: -23°35'07"

Neptune

Fair
Scheinbare Helligkeit: 7.8
Sternbild: Capricornus
Angular diameter: 2.3"
Status: near western quadrature

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

Rektaszension: 18h55m51s
Deklination: -21°56'40"

Moon

Excellent
Scheinbare Helligkeit: -12.7
Sternbild: Aries
Angular diameter: 12446.3"
Status: Moon illumination 55.3%

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

Rektaszension: 00h52m16s
Deklination: +10°55'56"