Proxima Centauri vs Sirius
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://starfyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://starfyi.com/entity//Add a dynamic SVG badge to your README or docs.
[](https://starfyi.com/entity//)Use the native HTML custom element.
| Property | Proxima Centauri | Sirius |
|---|---|---|
| Designation | N/A | 9Alp CMa |
| Constellation | Centaurus | Canis Major |
| Spectral Class | Class M — M-type (Red) | Class A — A-type (White) |
| Apparent Magnitude | +11.01 | -1.44 |
| Absolute Magnitude | 15.45 | 1.45 |
| Distance | 4.2 ly | 8.6 ly |
| Mass | N/A | N/A |
| Radius | N/A | N/A |
| Temperature | N/A | N/A |
| Luminosity | N/A | N/A |
Key Differences
- ◆ Sirius is a brilliant A-type star 8.6 ly away; Proxima Centauri is a faint M-type red dwarf at 4.24 ly.
- ◆ Proxima Centauri is the closest star to the Sun; Sirius is the closest naked-eye star in its direction.
- ◆ Sirius is 25.4 times more luminous than the Sun; Proxima Centauri produces only 0.17% of the Sun's light.
- ◆ Proxima Centauri hosts confirmed exoplanets in the habitable zone; Sirius has no known planets.
- ◆ Sirius shines at magnitude −1.46; Proxima Centauri at magnitude 11.1 is invisible to the naked eye.