These candlesticks are from the iconic mid-century design series by Piet Hein, where all the variations have astronomy-related names.
 
The three candlesticks for sale here are the versions Mars, Venus and Jupiter. A fourth, and taller, candlestick in the series also exists called Saturn.
 
This set are of the now-discontinued “Mini” series for taper candles, where also a mid-size for dinner candles exists, as well as a Maxi series which includes floor-sized candlesticks. Both of the latter are still in production.