데네브 vs 베가
Distance alone puts 56 times between 베가 and 데네브, 25.0 and 1,412 light-years. Seen from Earth the ranking is 베가 first at +0.03, 데네브 second at +1.25. By spectral type the pair divides into an A-type star in Cygnus for 데네브 and an A-type star in Lyra for 베가.
Property comparison
| Property | 데네브 | 베가 |
|---|---|---|
| 명칭 | 50Alp Cyg | 3Alp Lyr |
| 별자리 | Cygnus | Lyra |
| 분광형 | Class A — A-type (White) | Class A — A-type (White) |
| 겉보기 등급 | +1.25 | +0.03 |
| 절대 등급 | -6.93 | 0.60 |
| 거리 | 1,412 ly | 25.0 ly |
| 질량 | N/A | N/A |
| 반지름 | N/A | N/A |
| 온도 | N/A | N/A |
| 광도 | N/A | N/A |
Full data for each star: 데네브 · 베가
Key differences
Key Differences
- ◆ Both are A-type stars in the Summer Triangle, but they differ enormously in distance and luminosity.
- ◆ Vega is only 25 light-years away; Deneb is the most distant first-magnitude star at ~2,615 light-years.
- ◆ Deneb is intrinsically about 196,000 times more luminous than the Sun; Vega is 40 times more luminous.
- ◆ Vega was the original photometric zero-magnitude reference star.
- ◆ Deneb is a white supergiant with a radius ~203 R☉; Vega is a near-main-sequence star with radius ~2.4 R☉.