| antizenith | Declination of the anti-zenith sun for a given location |
| az2dec | Calculates declination from azimuth and altitude measurements |
| createHor | Create ._skyscapeR.horizon_ object from Az/Alt data |
| curvigram | Computes declination curvigram |
| download.HWT | Download horizon data from _HeyWhatsThat_ |
| dS | Declination of December Solstice for a given year |
| eq | Declination of sun at the equinoxes |
| exportHor | Exports a _skyscapeR.horizon_ object into _Stellarium_ format |
| hor2alt | Retrieves horizon altitude for a given azimuth from a given horizon profile |
| jS | Declination of June Solstice for a given year |
| Laskar04 | Astronomical elements from Laskar et al. (2004) |
| mag.dec | Estimates magnetics declination (diff. between true and magnetic north) based on IGRF 12th gen model |
| nh.LunarRange | Declination distribution of the Moon throughout the year for null hypothesis significance testing |
| nh.SolarRange | Declination distribution of the Sun throughout the year for null hypothesis significance testing |
| nh.SummerFM | Declination distribution of the Summer Full Moon for null hypothesis significance testing |
| nh.Uniform | Declination distribution corresponding to a uniform azimuthal distribution for null hypothesis significance testing |
| nMjLX | Declination of northern major Lunar Extreme for a given year |
| nmnLX | Declination of northern minor Lunar Extreme for a given year |
| obliquity | Computes obliquity based on _Laskar et al (2004)_ tables |
| orbit | Calculate visible path of celestial object at given location |
| plotAz | Polar plot of orientations (azimuths) |
| plotCurv | Plot a curvigram |
| plotHor | Plot horizon data |
| plotPhases | Plot stellar phase and seasonality |
| plotZscore | Plot a z-score transformed curvigram |
| reduct.compass | Data reduction for compass measurements |
| reduct.theodolite | Data reduction for theodolite measurements using the sun-sight method |
| RugglesCKR | Cork and Kerry Stone Row Data |
| RugglesRSC | Recumbent Stone Circle Data |
| sigTest | Perform a null hypothesis significance test of a given curvigram |
| sky.objects | Creates a _skyscapeR.object_ for plotting of celestial objects at given epoch |
| sMjLX | Declination of southern major Lunar Extreme for a given year |
| smnLX | Declination of southern minor Lunar Extreme for a given year |
| star | Create _skyscapeR.star_ object |
| star.phases | Calculate the seasons and phases of a star |
| stars | Stellar Data |
| sunAz | Returns the azimuth of the sun at a given time from a specific location |
| zenith | Declination of the zenith sun for a given location |