
### **Stars**
- An Extended Hipparcos Compilation (XHIP); Anderson E., Francis C. (2012) [VizieR V/137D](http://cdsarc.u-strasbg.fr/viz-bin/Cat?V/137D) 


### **Constellation Lines**
- [IAU Constellation page](http://www.iau.org/public/themes/constellations/) (via [d3-celestial](https://github.com/ofrohn/d3-celestial))
- [Stellarium](https://github.com/Stellarium/stellarium/tree/master/skycultures/modern_st) (via [Sky & Telescope](https://www.skyandtelescope.com))


### **Constellation Borders**
- Catalogue of Constellation Boundary Data; Davenhall A.C., Leggett S.K. (1989) [VizieR VI/49](http://vizier.cfa.harvard.edu/viz-bin/Cat?VI/49) (via [d3-celestial](https://github.com/ofrohn/d3-celestial))


### **Deep Sky Objects (DSOs)**
- [OpenNGC](https://github.com/mattiaverga/OpenNGC)

### **Milky Way Outline**
- Milky Way Outline Catalog, Jose R. Vieira (via [d3-celestial](https://github.com/ofrohn/d3-celestial))
