Aztec star-gazing

[Leonel Hermida]

Hi,

I just came across two names the Aztecs used associated with 'celestial
objects', namely "Tlahuizcalpantecuhtli" for the god associated with planet
Venus and "Piltzintecuhtli" for the one associated with planet Mercury (sic,
in a source on the Web)
Now, if they were able to spot the elusive planet Mercury they must have
known quite well the other planets (which are much more conspicuous,
I mean Mars, Jupiter and even Saturn)
Are their names known, and if so what were they? I'm sure star-gazers
would welcome the Nahuatl names of the 7 'wanderers' (Sun, Moon,
Mercury, Venus, Mars, Jupiter and Saturn)...

Thank you.

Leonel