Please recommend a telescope that can also be observed in astronomy!

First of all, observing planets requires a high magnification and a long focal length. Not to mention a telescope with an effective magnification of 200 times, even an 80mm aperture refraction with an effective magnification of 160 times is generally around 1m, which cannot meet the requirements of portability.

Secondly, if you want high magnification and portability, you can only consider the catadioptric mirrors of Marca and Zeca, and you can achieve a small fuselage length while ensuring a long focal length. However, the focal ratios of Marca and Zeca are both above F 10. The consequence of long focal length is that the exposure efficiency will plummet after SLR, which is not suitable for SLR shooting.

Finally, if the focal ratio is small, the color difference will be very serious. If you want a refractor with small focal ratio and small chromatic aberration, you can only choose APO, but first of all, it is expensive. An 80-caliber APO primary mirror costs 10,000 yuan. The second thing is that APO is used to photograph deep space objects such as nebulae and galaxies, but its short focal length determines that it is not suitable for photographing planets. In fact, the camera+telephoto telescope+electricity and equatorial telescope are the most commonly used to photograph planets.

Besides, the captain C5 F500 of Sirius you mentioned is catadioptric. If it is used to shoot planets, hehe, it can only be said that the blue edge and purple edge can drive you crazy.