411 REFERENCE · Wikibooks
Celestia/1.7.0 Changes
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
List of changes in Celestia 1.7.0 (work in progress, likely outdated except for units).
Rendering
Blackbody star colors are default
Fading orbits (can be toggled)
On ringed planets, the side of the rings facing away from the star is in shadow
LunarLambert makes objects brighter - apparently this is correct?
Sprite nebulae fade at a distance
Visibility of different object types (planets, moons, etc), as well as rings, can be toggled individually
Stars and planets can be rendered out to a distance of 1 billion light-years (increased from 10 million light-years)
Info display
Dwarf planets and minor moons are shown in the right-click menu of their parent body (they aren't in 1.6.x)
Temperatures are calculated for circumbinary planets
Data
Updates to most data files, models, and textures
Default temperatures and bolometric corrections for main-sequence stars updated
Audio
Audio support has been added - thread
New parameters
STC files
Temperature - in degrees Kelvin
BoloCorrection - Bolometric correction
Extinction - the number of magnitudes by which the star's light is extinguished
Spectral classes
Y - for Y-class brown dwarfs
WO - for Wolf–Rayet stars of the oxygen sequence
SSC files
Mass - in Earth units
New albedo parameters. Described in this issue, although the actual implementation isn't exactly the same as what was suggested.
BondAlbedo - Bond albedo
GeomAlbedo - Geometric albedo; replaces Albedo
Reflectivity - the visible average global reflectivity
TempDiscrepancy - this is added to the calculated equilibrium temperature
Temperature - in degrees Kelvin; overrides TempDiscrepancy
TailColor - for comets
Units
For many parameters, units can be specified in angle brackets, like this: Radius<rE> 1.1
Length
For e.g. Distance, Radius, SemiMajorAxis
<cm> - centimeters
<m> - meters
<km> - kilometers
<rE> - Earth radii
<rJ> - Jupiter radii
<rS> - solar radii
<AU> or <au> - astronomical units
<ly> - light-years
<pc> - parsecs
<kpc> - kiloparsecs
<Mpc> - megaparsecs
Time
For e.g. Period
<s> - seconds
<min> - minutes
<h> - hours
<d> - days
<y> - years
Angle
For e.g. RA, Dec, ArgOfPericenter
<mas> - milliarcseconds
<arcsec> - arcseconds
<arcmin> - arcminutes
<deg> - degrees
<hRA> - hours of Right Ascension
<rad> - radians
Mass
For Mass
<kg> - kilograms
<mE> - Earth masses
<mJ> - Jupiter masses
Solar mass units weren't added, despite mySevenSpheres suggestion to do so.
Locations
New location types can be found here.
Scripting
See CEL/CELX Scripting Documentation on celestia.mobi for new CEL/CELX commands.
Notes
note