Find reference stars for astronomical spectroscopy : https://spectro-starfinder.net/
Work in progress... Discussions on spectro-aras forum.
Based on an idea and the stars database from François Teyssier. Able to find target's coordinates on SIMBAD, observer's place from IAU/MPC observatory code or place name, it also manages timezone and daylight saving. Main processing loop on stars database is parallelized.
Searching for stars nearer than 5° of M27, from 586 (Pic du Midi), september 15th, 23:00 local time : https://spectro-starfinder.net/#M27
Target: M 27 (19h59m36s +22d43m16s, Planetary Nebula in Vulpecula), altitude=68.3°, azimuth=204°, airmass=1.076
Observer: lat=42d56m13s, lon=0d08m27s, alt=2843m, tz=Europe/Paris, 2019-09-15 21:00 UTC
.. Star: Sep: VMag: RA: Dec: Height: B-V: Eb-v: SpType: Miles:
01 HD 187811 2.0° 4.89 19h51m04s +22d36m36s 67°, Δh=-0.8° -0.143 0.10 B2,5Ve
02 HD 190993 1.9° 5.06 20h06m53s +23d36m52s 69°, Δh=1.4° -0.16 0.04 B3V
03 HD 189944 2.1° 5.87 20h01m45s +24d48m02s 70°, Δh=2.1° -0.133 0.05 B4V
04 HD 185859 4.9° 6.54 19h40m58s +20d28m38s 64°, Δh=-3.7° 0.63 B0.5Iae s0732
05 HD 192685 4.6° 4.76 20h15m16s +25d35m31s 72°, Δh=3.8° -0.167 0.03 B3V
06 HD 187362 4.4° 5.0 19h48m59s +19d08m31s 64°, Δh=-4.2° 0.1 0.02 A3V
07 HD 192044 4.7° 5.9 20h12m01s +26d28m44s 72°, Δh=4.4° -0.106 0.02 B7Ve
Required python packages : configparser timezonefinder pytz numpy astropy astroquery joblib. AstroPy version >= 3.1 is required. Caution, numba badly interferes.
| File | Language | Description |
|---|---|---|
| spectrostars.py | Python | Main script |
| config.ini | INI | Configuration |
| base.csv | CSV | Stars database |
| lib/base.py | Python | Stars database |
| lib/display.py | Python | Formater for HTML or text display |
| lib/functions.py | Python | Various functions |
| lib/observer.py | Python | Observer |
| lib/otypes.py | Python | Object classification in SIMBAD |
| lib/target.py | Python | Target |
| makehtml.py | Python | Create offline HTML list of stars |
| wsgi.py | Python | Optional WSGI backend |
| index.html | HTML, CSS | Optional web page |
| jslib.js | JavaScript | jQuery and JS-Storage for the web page |
| jscode.js | JavaScript | JavaScript code for the web page |