HX-19 is one of the twenty systems explored by Taisa Hanako while she commanded the YSS Elfin Princess in YE 30. It is situated between Fort Yuukan and Bizankro and is about 48 LY Southeast of Yamatai Star System.

It is a binary star system with no planets.

• Type K6 V Orange Main Sequence
• Radius 5.59 x 10⁵ km (0.80 x sol)
• Mass 1.13 x 10³⁰ kg (0.57 x sol)
• Temperature 4000 K
• Luminosity 1.88 x 10²⁶ W (0.49 x sol)

• Type M2 V Red Dwarf
• Distance 6.10 x 10⁷ km (0.41 AU)
• Radius 2.65 x 10⁵ km (0.38 x sol)
• Mass 5.17 x 10²⁹ kg (0.26 x sol)
• Temperature 3100 K
• Luminosity 1.57 x 10²⁵ W (0.04 x sol)