# astronomR 0.1.0

* Initial release of astronomR.
* Angular conversion functions: `deg_to_dms()`, `dms_to_deg()`, `deg_to_hms()`, `hms_to_deg()`, `deg2rad()`, `rad2deg()`.
* Physical constants dataset `constants_df` and retrieval function `constant_value()`.
* Gaia Archive query function `get_gaia_data()`.
* Distance conversion functions `km_to_Mpc()` and `Mpc_to_km()`.
* Early-universe thermal physics functions: `photon_energy_density_fn_T()`, `photon_energy_density_fn_z()`, `photon_number_density_fn_T()`, `photon_number_density_fn_z()`, `Saha_Xe()`, and `soln_saha()`.
