Just a cautionary note for those who plan to use a planetarium programme to find 2004 BL86.
On one of my previous searches for another NEO, I compared the data from:
- The Sky 6
- Starry Night Pro Plus 6
- SkyTools 3 Pro
And lo and behold, they were all slightly different.
The difference was sufficient that not all of them would have placed the NEO on my CCD chip (approx. 22x18 arc min). All had the same Time/Lat/Long settings and obtained their (fresh) input from their respective web servers.
I forget which was the most accurate now, but I do recall that the Horizons JPL data were spot on.
Cheers
Dennis