* Sirius is the brightest star in the night sky. It's a true star, a massive ball of burning gas.
* The "evening star" is actually the planet Venus. It's not a star, but a planet reflecting sunlight.
So, it depends on what you mean by "brighter":
* In terms of absolute brightness (luminosity), Sirius is much brighter than Venus. It's actually one of the most luminous stars in our galaxy.
* In terms of apparent brightness (how bright they appear from Earth), it depends on the time of year. Sometimes Venus is brighter than Sirius, and sometimes Sirius is brighter.
To summarize:
* Sirius is a star, Venus is a planet.
* Sirius is intrinsically brighter than Venus.
* Venus can appear brighter than Sirius in the sky depending on its position in its orbit.
So, while Sirius is the brightest star, it's not always the brightest object in the night sky.
