Hi all,
Just got in and catching up with this.
Firstly I must apologise. My distance to Sirius was from memory and it is incorrect. I said 8.11 lyrs and have just googled "distance to Sirius" and the first result was 8.611 lyrs. SORRY!. I certainly accept and understand the distance to Sirius will vary by +/- 180 million miles due to Earth rotation but at the speed of light this is only about 15 minutes and for this calculation can be safely overlooked.
Now I have my apology out of the way I will try and get my head round the maths.
Thanks
Mike
Just got in and catching up with this.
Firstly I must apologise. My distance to Sirius was from memory and it is incorrect. I said 8.11 lyrs and have just googled "distance to Sirius" and the first result was 8.611 lyrs. SORRY!. I certainly accept and understand the distance to Sirius will vary by +/- 180 million miles due to Earth rotation but at the speed of light this is only about 15 minutes and for this calculation can be safely overlooked.
Now I have my apology out of the way I will try and get my head round the maths.
Thanks
Mike