Table 1
Classification of our dwarf sample by the SIMBAD database.
| Category | Num. of stars | |
|
|
||
| Isolated main-sequence stars | ||
| Star (∗) | 476 | |
| High proper-motion star (PM∗) | 254 | |
| Extra-solar planet candidate (Pl?) | 20 | |
| Stars in a multiple system or a cluster | ||
| Spectroscopic binary (SB∗) | 170 | |
| Double or multiple star (∗∗) | 130 | |
| Star in a multiple system (∗i∗) | 181 | |
| Star in a cluster (∗iC) | 18 | |
| Star in a nebula (∗iN) | 5 | |
| Variable stars † | 332 | |
| YSOs ‡ | 141 | |
| Old stars § | 6 | |
| Others (IR, Rad) | 2 | |
|
|
||
| Total | 1735 | |
Notes.
Including Variable Star (V∗), Star suspected of Variability (V∗?), Variable of BY Dra type (BY∗), Variable of RS CVn type (RS∗), Variable Star of delta Sct type (dS∗), Variable Star of gamma Dor type (gD∗), Semi-regular pulsating Star (sr∗), Variable Star of alpha2 CVn type (a2∗), Pulsating variable Star (Pu∗), Ellipsoidal variable Star (El∗), Variable Star of RV Tau type (RV∗), Variable Star with rapid variations (RI∗), Rotationally variable Star (Ro∗), Variable Star of beta Cep type (bC∗), Variable Star of Mira Cet type (Mi∗), Eclipsing binary of W UMa type (contact binary) (WU∗), Variable Star of W Vir type (WV∗), Variable Star of R CrB type (RC∗), Eruptive variable Star (Er∗), Variable Star of Orion Type (Or∗), Cepheid variable Star (Ce∗), Eclipsing binary of Algol type (detached) (Al∗), Eclipsing binary of beta Lyr type (semi-detached) (bL∗).
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