आर्द्रा तारा vs व्याध तारा
| गुण |
आर्द्रा तारा
|
व्याध तारा
|
| पदनाम |
58Alp Ori |
9Alp CMa |
| नक्षत्रमंडल |
Orion |
Canis Major |
| वर्णक्रम वर्ग |
Class M — M-type (Red) |
Class A — A-type (White) |
| आभासी परिमाण |
+0.45 |
-1.44 |
| निरपेक्ष परिमाण |
-5.47
|
1.45
|
| दूरी |
498 ly |
8.6 ly |
| द्रव्यमान |
N/A
|
N/A
|
| त्रिज्या |
N/A
|
N/A
|
| तापमान |
N/A
|
N/A
|
| दीप्तिमानता |
N/A
|
N/A
|
मुख्य अंतर
- ◆ Sirius is an A-type main-sequence star; Betelgeuse is an M-type red supergiant nearing the end of its life.
- ◆ Betelgeuse has a radius of ~887 R☉ — over 500 times larger than Sirius at 1.71 R☉.
- ◆ Sirius is only 8.6 light-years away; Betelgeuse is about 700 light-years distant.
- ◆ Betelgeuse is luminosity-dominant at ~126,000 L☉ versus Sirius at 25.4 L☉.
- ◆ Sirius is the brightest star in the night sky; Betelgeuse is a famous supernova candidate.