Vega has lots of hangars, you have to get used to less hangars, the higher up you climb at the systems, the less hangars will be at your dispose.
All Cq planets has 1 hangar.
Vega has Junkyard Cq, Vega 3 is an event planet and that hangar needs to be there. Vega 2 is the starter planet 1, and Vega 1 starter number 2, so they need it more than players who's reach Vega4 already.
Antares has 2 Cq planets, and hangar at Terasa and Lustra.
Gemini has 1 Starbase hangar + 2 Cq planets.
Mizar has 1 Starbase hangar + 2 Cq planets.
Sol has 1 Starbase hangar + 3 Cq planets.
To change one system with 1 hangar, all systems would need to change.
So be happy you have even that many at Vega.