<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<Scenery>

  An optically thin blob centered on the origin of the coordinate
  system, in flat space-time. Computation uses the spherical
  coordinates.

  <Metric kind = "Minkowski">
    <Mass unit="sunmass"> 4e6 </Mass>
    <Spherical/>
  </Metric>

  <Screen>
    <Distance unit="kpc"> 8 </Distance>
    <Time unit="yr"> 30e3 </Time>
    <FieldOfView unit="µas"> 150 </FieldOfView>
    <Inclination unit="°"> 90 </Inclination>
    <PALN> 0 </PALN>
    <Argument> 0 </Argument>
    <Resolution> 32 </Resolution>
  </Screen>

  <Astrobj kind = "FixedStar">
    <Radius> 12 </Radius>
    <Position> 0 0 0 </Position>
    <UseGenericImpact/>
    <Spectrum kind="PowerLaw">
      <Exponent> 0 </Exponent>
      <Constant> 0.001 </Constant>
    </Spectrum>
    <Opacity kind="PowerLaw">
      <Exponent> 0 </Exponent>
      <Constant> 0.01 </Constant>
    </Opacity>
    <OpticallyThin/>
  </Astrobj>

  <Delta> 1e0 </Delta>
  <MinimumTime> 0. </MinimumTime>
  <Quantities>
    Intensity
  </Quantities>
  One can also specify a unit (if Gyoto was compiled with --with-udunits):
    Intensity[mJy/pix²]
    Intensity[mJy/µas²]
    Intensity[J.m-2.s-1.sr-1.Hz-1]
    Intensity[erg.cm-2.s-1.sr-1.Hz-1]
    Intensity[mJy.sr-1]
    Intensity[Jy.sr-1]

</Scenery>
