Calc GaoGaiGar - Pisa Sol reforms the 'Sun'

Pisa Sol reforms her true form from the Sun into a cube form. In case the show didn't make it obvious enough, the Dengeki Data Collection outright confirms she is the size of a star.
(Relevant text)

Genesic GaoGaiGar successfully created Crusher Connect. With that single blow, the main body of the stellar-sized Pisa Sol was shattered.

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This will be simple enough. The Sun has a diameter of 1391400km and a mass of 1.9891e30kg.
Timeframe is 4 seconds and 28 frames (obviously, the framerate is 30 frames per second).

T = 1s/30
= 33.3333333ms X 28
= 0.933333332s + 4s
= 4.93333333s

167 pixels = 1391400km
1 pixel = 1391400km/167 = 8331.73653km
8331.73653km X 290 = 2416203.59km

T = 2416203.59km/4.93333333s
= 489770998/299792458
= 1.6337002 C

Alas, as this is FTL we cannot get kinetic energy from it (given the Sun was reformed, it would be star level in anycase).

Final Results
Pisa Sol reforms the 'Sun' = 1.634 C