April 1991 Eventos celestes
Localización do observador：Beijing (39.904°, 116.407°)
Visión xeral dos planetas
22 eventos do ceo en total, incluíndo 4 fases da Lúa e 1 eventos planetarios.
Eventos celestes
Todas as horas están en hora local (Asia/Shanghai)
| Data | Amencer/posta de sol | Saída/posta da Lúa | Fase da Lúa | Eventos celestes |
|---|
Planetary outlook
April 1991 mid-month observing conditions
Mercury
Observation tip: A telescope is required; Mercury stays close to the Sun; best seen at dusk or dawn
Venus
Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn
Mars
Observation tip: Visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition
Jupiter
Observation tip: Very bright, easily visible to the naked eye; Its moons are easy to spot and it is excellent for telescope observing
Saturn
Observation tip: Visible to the naked eye; Saturn’s rings require a telescope to see clearly
Uranus
Observation tip: Binoculars are recommended; Binoculars or a telescope are recommended
Neptune
Observation tip: A telescope is required; A telescope is required; Neptune appears blue-green
Moon
Observation tip: Moon illumination 0.2%; good for observing lunar surface detail
1991 sky events by month
Choose a month to explore the detailed forecast