1.4 AU
There is no need to change astronomical unit into Kilometres cause 1AU = 1.495978707 x 108 kilometres
156855
As of May 2010 Halley's comet is 32 Astromical units from the Sun (4,800 million km's) For location, click on the link below.
I think it is because The Universe is so GIANT that earth measures just aren't enough. I hope I helped!
There are 19 trillion miles (31 trillion kilometres) in a parsec, which is an astromical measurement.
On average 1.52, but plus or minus 0.14.
Mars' average distance from the sun is about 1.52 astronomical units (AU), which is approximately 227.9 million kilometers.
Average of equatorial and polar diameters = 6770 kilometres.
156,855
Mars is 1.5 astronomical units away from sun while Neptune is 30 astronomical units away.
Roughly .5au
1000,000,000,000 square units 2