31. K0
Spectral type is determined from the ratios 4030-4034: 4300, 4290: 4300, and H: 4096. Luminosity differences are shown by the ratios 4063: 4077, 4071: 4077, 4144: 4077, and by the intensity difference of the continuous spectrum on each side of 4215.
Star | MKK | a | m | HD | Notes | |
54 Psc .... | K0 V | 00:34 | +20°43' | 6.1 | K0 | |
a Cas ..... | K0 II-III | 00:34 | +55 59 | 2.3 | K0 | |
Eri ....... | K0 IV | 03:38 | -10 06 | 3.7 | K0 | 1 |
Aur ...... | K0 III | 05:51 | +54 17 | 3.9 | K0 | |
Gem ..... | K0 III | 07:39 | +28 16 | 1.2 | K0 | |
Hya ..... | K0 III | 08:50 | +06 20 | 3.3 | K0 | |
Hya ..... | K0 III | 10:05 | -11 52 | 3.8 | K0 | |
Leo A ... | K0 pec | 10:14 | +20 21 | 2.6 | K0 | 2 |
46 LMi .... | K0 III-IV | 10:47 | +34 45 | 3.9 | K0 | |
Oph ..... | K0 III | 17:53 | -09 46 | 3.5 | K0 | |
70 Oph A. | K0 V | 18:00 | +02 31 | 4.3 | K0 | |
Ser ..... | K0 III-IV | 18:16 | -02 55 | 3.4 | K0 | |
Dra ..... | K0 V | 19:32 | +69 29 | 4.8 | K0 | |
Cyg ..... | K0 III | 19:52 | +34 49 | 4.0 | K0 | |
52 Cyg .... | K0 III | 20:41 | +30 21 | 4.3 | K0 | |
Cyg ..... | K0 III | 20:42 | +33 36 | 2.6 | K0 | |
Cep ..... | K0 IV | 20:43 | +61 27 | 3.6 | K0 | |
Cep ..... | K0 III | 22:46 | +65 40 | 3.7 | K0 | |
107 Psc ... | K1 V | 01:37 | +19 47 | 5.3 | G5 | |
Her ..... | K1 II | 17:52 | +37 16 | 4.0 | K0 | |
Cep ..... | K1 IV | 23:35 | +77 4 | 3.4 | K0 | |
NOTES | ||||||
1. The spectrum indicates a lower luminosity than Cep. | ||||||
2. Luminosity criteria are conflicting. From the ratio 4063: 4077 Leo A would be judged more luminous than Gem (class III), while the intensity of the CN break at 4215 is less than in stars of class III. The double star Leo is a high-velocity system, and the spectral peculiarities are similar to those of the high-velocity stars a Boo and Lep. |
High resolution image |
High resolution image |