Template:Starbox astrometry experimental

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Astrometry

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Syntax for this template is as follows:

{{Starbox astrometry experimental|
  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 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:

• {{Starbox image}}
• {{Starbox observe}}
• {{Starbox character}}
• {{Starbox visbin}}
• {{Starbox detail}}
• {{Starbox catalog}}

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 |
   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