<Tr> <Td> NEbE </Td> <Td> Vega </Td> </Tr> <Tr> <Td> ENE </Td> <Td> Arcturus </Td> </Tr> <Tr> <Td> EbN </Td> <Td> the Pleiades </Td> </Tr> <Tr> <Td> </Td> <Td> Altair </Td> </Tr>

What is the difference between pelorus and azimuth circle