Andy,
I'm using the GAIA catalogue which goes down to 21 mag (
)
By reducing the limiting magnitude to 15 mag you can see you're recording stars down to 14 mag.
There seems to be a couple of anomalies....
HD 303308 (8mag) is missing??
and you record a 8 mag star at:
RA 10h44m58.85s
Dec -57d42m22.7s
(This shows as an 11.6mag in Simbad)