Bob Nelson is well known to the variable star observing community, and many of his software tools and spreadsheets have been fundamental to the planning and analysis phases of VSS projects.
VSS is proud to provide Bob a new digital home for his tools, spreadsheets, software and other resources.d
All of this is freeware – use as you wish. For Windows platforms only (sorry Linux, Mac).
| Routine | Version | Date | Description |
|---|---|---|---|
| Astrotime | 42 | 2012-07-24 | A utility that converts epochs, calculates HJD, horizon coordinates, and more. Now does sunrise and set. |
| Broadening Functions | 26 | 2013-11-25 | The Rucinski routines to derive RVs from stellar spectra. |
| Clear Skies | 13a | 2005-11-11 | Saves Clear Sky Clock values to file. Source code using WebBrowser is useful example. |
| EB Min | 23 | 2015-12-13 | Generates predictions of EB minima for your date, location, and local horizon. |
| Minima | 27 | 2019-04-06 | Finds the precise times of minima for eclipsing binary (EB) data using 6 methods. |
| B_Minima | 12 | 2005-05-18 | As above but handles huge files in batch mode (it searches for minima automatically). |
| Period Search | 15f | 2006-07-12 | Finds periods for EBs based on portions of light curves. |
| Phases | 14c | 2015-06-03 | Prints out, for a given night, and location, the phases of various eclipsing binaries for each hour. This is a very effective tool for planning your observing session. |
| RaVeRe | 22c | 2012-07-24 | Does intermediate processing for spectral image files (and saves a ton of time over IRAF!!) |
| Sp_Analysis | 14 | 2007-05-10 | Displays up to 10 spectra (with offsets adjustable), reads wavelengths under cursor, etc. |
| Tables2Tex | 10g | 2005-10-31 | Converts text files with tables to Tex format. (It’s great for IBVS publications!) |
| Tom_Cat | 17e | 2007-05-10 | Finds periods for EBs based on times of minima. (It’s hot!!) |
| VHLimb | 1.1 | 1994-05-20 | Program by Dr. Dirk Terrell that interpolates the van Hamme limb darkening tables |
| WDwint | 56a | 2009-06-27 | A front end interface for the Wilson-Devinney star modelling package. This upgrade has additional help and error traps. |
All of these programs are DOS-based. If there is interest in more modern Windows-based versions, please contact me at the address below and I’ll see what I can do.
| Routine | Version | Date | Description |
|---|---|---|---|
| EQ_POT | 61 | A routine that plots equipotential and electric field lines for electrodes that you draw. | |
| Funcs | 55 | 1992-05-02 | A number of physics functions (e.g., SHM, Planck, Maxwell, Fresnel diffraction, QM square well wave functions). |
| [TRAJEC(TRAJEC26.zip) | 26 | 1992-06-23 | Plots real trajectories in air for a number of common projectiles (e.g., baseballs, ping-pong balls, etc.). The effect of wind is allowed for. |