Template:Starbox astrometry experimental 2

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Astrometry


Syntax for this template is as follows:

{{Starbox astrometry experimental 2 |
  radial_v=Radial velocity |
  prop_mo_ra=Proper motion (RA) |
  prop_mo_dec=Proper motion (dec) |
  parallax=Parallax |
  p_error=Parallax error |
  dist_ly=Distance in light years |
  dist_pc=Distance in parsecs |
  absmag_v=Resulting absolute magnitude }}

This template is similar to the {{Starbox astrometry}} template, except that if the parallax is given and the distance is not, the distance is automatically computed from the parallax, and, if the error in the parallax is given, a distance error is computed from this error. (The {{Starbox astrometry experimental}} template also does this; this template differs from {{Starbox astrometry experimental}} in that, if the error bar is sufficiently large, the error is not displayed and it is merely indicated that the distance computed from the parallax is approximate.) The distance may still be specified separately; this would be useful if, e.g., the distance were known from some non-parallactic source. If neither a parallax nor distance is specified, no distance line is displayed.

Like most of the other Starbox templates, this template should be used after the {{Starbox begin}} template. This template can also be preceded or followed by other Starbox templates:

The list should then be closed with a {{Starbox end}} template.

Here is an example:

 {{Starbox begin |
    name=Alpha Cassiopeiae }}
 {{Starbox observe |
   epoch=[[J2000.0]] ([[International Celestial Reference System|ICRS]]) |
   ra=00<sup>h</sup> 40<sup>m</sup> 30.5<sup>s</sup> |
   dec=+56° 32′ 14.5″ |
   appmag_v=2.24 |
   constell=[[Cassiopeia (constellation)|Cassiopeia]] }}
 {{Starbox astrometry experimental 2 |
   radial_v=−3.8 |
   prop_mo_ra=50.36 |
   prop_mo_dec=−32.17 |
   parallax=14.27 |
   p_error=0.57 |
   absmag_v=−2.0 }}
 {{Starbox end}}

produces


Alpha Cassiopeiae
Observation data
Epoch J2000.0 (ICRS)
Constellation
(pronunciation)		 Cassiopeia
Right ascension 00h 40m 30.5s
Declination +56° 32′ 14.5″
Apparent magnitude (V) 2.24
Astrometry
Radial velocity (Rv) −3.8 km/s
Proper motion (μ) RA: 50.36 mas/yr
Dec.: −32.17 mas/yr
Parallax (π) 14.27 ± 0.57 mas
Distance 229 ± 9 ly
(70 ± 3 pc)
Absolute magnitude (MV) −2.0