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.
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| High resolution image |
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| High resolution image |
