The images in an astronomical telescope are always 'flipped' - although you CAN get finders that give upright images if you look round.
To create an upright image would require extra glass elements (lenses or prisms).
No mirror/prism is 100% reflective - and no lens is 100% transparent - so every glass element in the light-path will degrade the image a tiny bit.
Because there is no 'up' or 'down' in space, a telescope avoids having unneccesary glass, in the light path.
Image quality, is FAR more important than orientation
Oh - and you won't need a telescope to watch a meteor shower
Meteors move far too fast to be able to track them with a telescope - too fast even for binoculars.
WHOOSH - and they're gone.
Best strategy is to lean back in a comfy seat, and watch a patch of sky to one side or the other of the radiant (that's where MOST shower meteors appear).
Because the Perseids' radiant is roughly Northeast - best results will be had by concentrating your gaze either North or East.
(Meteors don't appear AT the radiant, but appear 20 or 30 degrees away, and shoot away from the radiant)
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