| aberration_corrected_coordinates_planet | Planetary aberration correction (effect of light-time and... |
| aberration_correction_star | Annual aberration correction |
| alignment2equatorial | Calculate azimuth and altitude from geographical coordinates... |
| angular_separation | Angular separation between two celestial bodies |
| apparent_elevation | Function for getting the difference between the apparent... |
| apparent_equatorial_position | Apparent equatorial coordinates of a celestial body |
| apparent_equatorial_position_moon | Apparent equatorial coordinates of sun |
| apparent_equatorial_position_planet | Apparent equatorial coordinates of a planet |
| apparent_equatorial_position_star | Equatorial coordinates for a star |
| apparent_equatorial_position_sun | Apparent equatorial coordinates of sun |
| apparent_longitude_sun | Apparent geometric longitude referred to the mean equinox of... |
| apparent_sidereal_time_at_Greenwich | Apparent sidereal time at Greenwich |
| argument_of_latitude_moon | Moon's argument of latitude (mean distance of the Moon from... |
| atmospheric_refraction_correction | Altitude correction due to atmospheric refraction |
| azimuth | Function for getting the difference between the azimuth... |
| centuries_since_2000 | Number of centuries since 2000-01-01 |
| check_alignment | Get error in azimuth given the horizontal coordinates of an... |
| cos_component | Cosine auxiliary function |
| crossing_zero_up | Zero crossing of a periodical function |
| degrees2hours | Degrees to hour angle transformation |
| degrees2rad | Degrees to radian transformation |
| degrees2str | Sexagesimal degree formatting to string |
| derivative | First derivative for the function and value given |
| distance_to_earth | Distance to Earth with planetary aberration correction... |
| distance_to_earth_moon | Distance to Earth |
| dms | Sexagesimal degre components |
| dmyh | Julian day components: day, month, year and hour |
| ecliptic2equatorial | Ecliptic coordinates to Equatorial coordinates transformation |
| equatorial2ecliptic | Equatorial coordinates to Ecliptic coordinates transformation |
| equatorial2horizontal | Equatorial coordinates to Horizontal coordinates... |
| extinction_angle | Extinction zenith angle |
| festivals | Dates of solstices, equinoxes and cross-quarter days in an... |
| first_new_moon | Dates of first visibility of the lunar crescent just after a... |
| geocentric2topocentric | Geocentric to topocentric equatorial coordinates... |
| geometric_mean_longitude_sun | Geometric mean longitude of the sun referred to the mean... |
| get_planets | Return the list of planets that can be seen withe the naked... |
| get_star | Returns the characteristics of a star |
| get_stars | Return a list of the stars included in the catalogue |
| heliocentric_latitude | Heliocentric latitude of a planet |
| heliocentric_longitude | Heliocentric longitude of a planet |
| heliocentric_radius | Heliocentric radius of a planet |
| hms | Hour components: hours, minutes, seconds |
| horizontal2equatorial | Equatorial coordinates to Horizontal coordinates... |
| hours2degrees | Hour angle to degrees transformation |
| hours2rad | Hour angle to radian transformation |
| hours2str | Hour value formatted as hh:mm:ss string |
| jd2str | Julian day formatted as IS8601 string |
| julian_day | Julian day from day, month, year and hour angle |
| mean_anomaly_moon | Mean anomaly of the moon referred to the mean equinox of the... |
| mean_anomaly_sun | Mean anomaly of the sun |
| mean_elongation_moon | Mean elongation of the moon referred to the mean equinox of... |
| mean_longitude_moon | Geometric mean longitude of the moon referred to the mean... |
| mean_obliquity_ecliptic | Mean obliquity of the ecliptic |
| mean_sidereal_time_at_Greenwich | Mean sidereal time at Greenwich |
| mean_sidereal_time_at_Greenwich_at_0_UT | Mean sidereal time at Greenwich at 00:00 UT |
| nutation_correction_star | Nutation correction |
| nutation_in_longitude | Nutation in longitude |
| nutation_in_obliquity | Nutation in obliquity |
| planetary_orbit_elements | Orbital elements for the mean equinox of the date |
| plt_fnc_jd | Plot a function usin Julian Day as x coordinate |
| precession_star | Equatorial coordinates for a stat due to precession |
| probability_fortuitous_alignments | Fortuitous probability for a number of coincidences for a... |
| probability_fortuitous_alignments.bernoulli | Fortuitous probability for a number of coincidences for a... |
| probability_fortuitous_alignments.rosenfeldt | Fortuitous probability for a number of coincidences for a... |
| rad2degrees | Radian to degrees |
| rad2hours | Radian to hour angle |
| reduce_degrees | Reduce degrees to the interval [0,360), or (-180,180] if... |
| reduce_hours | Reduce hour value to the interval [0,24) |
| sky_brightness | Visual magnitude of non-standard sky brightness |
| star_visibility | Star visibility information when certain star sets or rises... |
| stellar_phenomena | Julian day for star's appearance or disappearance |
| str | List formatting to string according to the names of its... |
| str2degrees | Sexagesimal degree parsing from string |
| str2hours | Hour parsed from an hh:mm:ss formatted string |
| str2jd | Julian day parsed from an IS8601 formatted string |
| true_elevation | Function for getting the difference between the true... |
| true_longitude_sun | True geometric longitude referred to the mean equinox of the... |
| true_obliquity_ecliptic | True obliquity of the ecliptic |
