I have recently learned that my telescope, despite being promised a parabolic mirror, has a spherical mirror. Is it actually as bad as the rumors are or should it work just fine? I'm not planning to do any type of astrophotography, some pictures of the moon perhaps, but that's it. I'll use it for observing bright DSOs and planetary viewing. I have ordered high-quality eyepieces that'll replace the poor ones that came with the telescope so I shouldn't worry about the moon and other objects looking like a rainbow anymore I think. What are your thoughts on this?
mirror diameter: 130mm / 4,5 in
focal ratio: F/5
tube length: 650 mm