ब्रह्महृदय तारा vs पुनर्वसु-पॅलक्स तारा
Apparent brightness is what most separates them: +0.08 against +1.16, a gap of 1.08 magnitudes. Catalogues list ब्रह्महृदय तारा as an M-type star and पुनर्वसु-पॅलक्स तारा as a K-type star in Gemini. Only 33.8 light-years separate the Sun from पुनर्वसु-पॅलक्स तारा; ब्रह्महृदय तारा sits 1.3 times further out at 42.8. Absolute magnitudes of −0.51 for ब्रह्महृदय तारा and +1.08 for पुनर्वसु-पॅलक्स तारा put a factor near 4.3 between their true outputs.
Property comparison
| Property | ब्रह्महृदय तारा | पुनर्वसु-पॅलक्स तारा |
|---|---|---|
| पदनाम | 13Alp Aur | 78Bet Gem |
| नक्षत्रमंडल | N/A | Gemini |
| वर्णक्रम वर्ग | Class M — M-type (Red) | Class K — K-type (Orange) |
| आभासी परिमाण | +0.08 | +1.16 |
| निरपेक्ष परिमाण | -0.51 | 1.08 |
| दूरी | 42.8 ly | 33.8 ly |
| द्रव्यमान | N/A | N/A |
| त्रिज्या | N/A | N/A |
| तापमान | N/A | N/A |
| दीप्तिमानता | N/A | N/A |
Full data for each star: ब्रह्महृदय तारा · पुनर्वसु-पॅलक्स तारा
Key differences
Key Differences
- ◆ Both are among the nearest and brightest giant stars to the Sun.
- ◆ Capella is the sixth-brightest star and is actually a quadruple system with two G-type giants as the primary pair.
- ◆ Pollux is the single nearest giant star, hosting a confirmed exoplanet.
- ◆ Capella is at ~43 light-years; Pollux is closer at ~34 light-years.
- ◆ The primary pair of Capella orbits each other every 104 days and are not resolvable by eye.