Stars data

[cptolemy]

Good evening,

I noticed the implementation of Sirius, and the results seem fair. Still, I haven't found the correct form for defining a star. Here's the code you have for Sirius:

	epoch: 2000,
	hmsRa: {hours: 6, minutes: 45, seconds: 8.871},
	hmsDec: {hours: -16, minutes: 42, seconds: 57.99},
	raMotion: -3.847,
	decMotion: -120.53,
	velocity: -7.6,
	parallax: 0.3751,
	magnitude: -1.46,
	ra: 0.0,
	dec: 0.0,
	equinox: {julian: 0.0}

The RA and Dec seem close from the Simbad database for the stars. But can you please tell me how did you reduced the proper motion? Simbad gives the values -546.01 -1223.07, and for the radial velocity -5.50.

Can you please advise?

Kind regards

CPtolemy