The main stars we observe are: the moon, Saturn, Jupiter, Mars, Venus, and the sun.
Observation effect and extent:
Main: crater, crater, moon sea, moon creek
Main: Saturn’s halo, Cassini slit, Enke slit (difficult to observe with primary telescopes)
Main: The primary telescope can observe 2-3 cloud bands (streaks) under good atmospheric conditions,
Great Red Spot (difficult to observe)
Main: white polar cap, difficult to observe with primary telescope
The Venus phase (profit and loss) elementary telescope can also find out
Mainly: sunspots, flares,
Note: It is absolutely not allowed to observe the sun directly with a telescope. It is necessary to use a solar filter made of a Bard film at the objective lens. The solar filter at the eyepiece end is dangerous and is not recommended, or a safer projection method should be used.
In addition, some deep-sky objects such as star clusters, galaxies, and nebulae are affected by the performance of the telescope, and the details and numbers that can be seen are different.