<Tr> <Td> A6V </Td> <Td> 1.80 </Td> <Td> 1.66 </Td> <Td> </Td> <Td> 7672 </Td> </Tr> <Tr> <Td> A7V </Td> <Td> 1.74 </Td> <Td> 1.63 </Td> <Td> 2.3 </Td> <Td> 7483 </Td> </Tr> <Tr> <Td> A8V </Td> <Td> 1.66 </Td> <Td> 1.60 </Td> <Td> 2.4 </Td> <Td> 7305 </Td> </Tr> <Tr> <Td> A9V </Td> <Td> 1.62 </Td> <Td> 1.55 </Td> <Td> 2.5 </Td> <Td> 7112 </Td> </Tr>

What two types of stars are not on the main sequence