Betelgeuse vs Mira
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 | Betelgeuse | Mira |
|---|---|---|
| Ký Hiệu | 58Alp Ori | 68Omi Cet |
| Chòm Sao | Orion | N/A |
| Phân Loại Quang Phổ | Class M — M-type (Red) | Class M — M-type (Red) |
| Cấp Sao Biểu Kiến | +0.45 | +6.47 |
| Cấp Sao Tuyệt Đối | -5.47 | 1.66 |
| Khoảng Cách | 498 ly | 299 ly |
| Khối Lượng | N/A | N/A |
| Bán Kính | N/A | N/A |
| Nhiệt Độ | N/A | N/A |
| Độ Sáng | N/A | N/A |
Key Differences
- ◆ Both are famous variable red giants/supergiants of spectral type M, but at very different evolutionary stages.
- ◆ Mira is a low-mass AGB star on its final evolutionary phase before becoming a planetary nebula; Betelgeuse is a massive red supergiant heading for a supernova.
- ◆ Mira has a pulsation period of ~332 days with an enormous magnitude range; Betelgeuse shows semi-regular variability.
- ◆ Betelgeuse is vastly larger at ~887 R☉ versus Mira's ~332 R☉.
- ◆ Mira has a remarkable 13-light-year tail of shed material trailing behind it through the interstellar medium.