Nothing to do - two points needed to make anything PADicomputes position angle and angular distance of the second point with respect to the first one. The point can be given through its HR number (in the Bright Stars Catalogue) as HR#, by its Greek/Flamsteed code preceded by N as nAlp_Cas, nAlp1Sco, n42_Eri, or by giving RA# (in degrees) or RAhh:mm:ss and De# - " - or DEdd:mm:"" . ------------------ (press Q to quit, just to see the next page) More than two points can be given, then a matrix of for all pairs will be computed. IR asks for output of angular distance just in milliradians ID - " - degrees IM - " - minutes R[-] asks for (not)including refraction; if yes, than the following parameters are of importance: ------------------ (press Q to quit, just to see the last page) D is date (initial value is the current one) T is time (default is the current one) UT is the t-UTC difference / 1 h (default 1 from Nov. to March, else 2) L is the Longitude of the observing place, default that of Brno, F is the latitude - " - E equinox year (default 2000.0, i.e. J2000), for computing precession If needed, three parameters for computing refraction can be added: PR pressure / 1013.25 kPa (default 0.97) CT Celsius air temperature / 1 K (default 10) RH Relative humidity of the air / 1 % (default 70) LB (default c:\d\j\d\stars;C:\D\BSC5\;c:\d\stars\bsc5;/home/jhollan/public_html/data;/home/guest/cats;g:\cats ) ( (C) Jan Hollan, N.Copernicus Observatory and Planetarium in Brno, 1999-2006; subject to the GNU General Public License, http://www.gnu.org/copyleft; source code available at http://astro.sci.muni.cz/pub/hollan/programmes) source code available at http://astro.sci.muni.cz/pub/hollan/programmes)

This is a result of the programme padi (available as a part of a package pas_jh.zip (1.2 MB) -- the needed Pascal units themselves are unzipped within this directory, the whole tree of my programmes within this directory) with a command line:

padi d29.07.2021 t17:41 l16.6 f49.2 ut2 R-