Yes, the hub is identical
Same 5x110 PCD and same 65.1 mm centre bore: wheels from Opel Corsa D 5 trou bolt on and centre on Saturn Astra 5 trou without rings. You still need to check the offset and tyres, detailed below.
≈: width estimated from the original tyre size.
Wheel by wheel: offset and tyres
Each original wheel from Opel Corsa D 5 trou is compared with the one from Saturn Astra 5 trou of the same diameter: how much closer the wheel gets to the shock absorber or how far it sticks out of the wheel arch, and whether the tyre keeps the same overall diameter.
- !
6Jx15 ET39 · 185/65R15 — Check on the car
Compared with the original ≈6Jx15 ET35 on Saturn Astra 5 trou: shock absorber side +4 mm, wheel arch side −4 mm, tyre diameter −2 % : fit it with the original tyre size of Saturn Astra 5 trou (195/65R15), not that of Opel Corsa D 5 trou.
Comparison for guidance only (estimated width). Check in detail
Before fitting the wheels
An identical hub is not enough: offset, width and diameter change the position of the wheel, and larger calipers can touch a smaller wheel. Original wheels often use bolts or nuts with a specific seat: keep the fixings intended for the wheel, with the thread of Saturn Astra 5 trou (M12x1.50), tightened to the torque shown on its vehicle page. Finally, check that the size is among the approved fitments for your vehicle. This comparison is for guidance only: have the fitting approved by a professional.
And the other way round: wheels from Saturn Astra 5 trou on Opel Corsa D 5 trou?