# Doppler Imaging MPEG Videos

## Cool Stars

RS CVn, young active dwarf stars, T Tauri-type stars

### EI Eridanae

G5IV, RS CVn, T_{eff} = 5500K, P_{rot} = 1^{d}.945, V_{eq} = 70.9, R = 2.7, i = 46°

### EK Draconis

G1.5V single dwarf, T_{eff} = 5870K, P_{rot} = 2^{d}.60, V_{eq} = 20.0, R = 1.0, i = 60°

### HD 199178 (1989 April)

G5III-IV FK Comae type variable, T_{eff} = 5450K, P_{rot} = 3^{d}.33, V_{eq} = 71.5, R = 7.3, i = 40°

### HD 199178 (1989 May-June)

G5III-IV FK Comae type variable, T_{eff} = 5450K, P_{rot} = 3^{d}.33, V_{eq} = 71.5, R = 7.3, i = 40°

### HD 199178 (1990 May)

G5III-IV FK Comae type variable, T_{eff} = 5450K, P_{rot} = 3^{d}.33, V_{eq} = 71.5, R = 7.3, i = 40°

### HU Virgo

KOIII-IV RS CVn, T_{eff} = 5000K, P_{rot} = 9^{d}.55, V_{eq} = 65.3, R = 12.3, i = 65°

### LQ Hydrae

K2V single dwarf T_{eff} = 5200K, P_{rot} = 1^{d}.610, V_{eq} = 31.2, R = 1.0, i = 65°

### σ^{2} CrB

BY Dra double line binary

F9V T_{eff} = 6000K, P_{rot} = 1^{d}.157, V_{eq} = 56.0, R = 1.3, i = 30°

G0V T_{eff} = 5950K, P_{rot} = 1^{d}.157, V_{eq} = 56.0, R = 1.3, i = 30°

### V410 Tauri (1992)

K4IV WTTS, T_{eff} = 4400K, P_{rot} = 1^{d}.872, V_{eq} = 85.0, R = 3.1, i = 70°

### V410 Tauri (1993)

K4IV WTTS, T_{eff} = 4400K, P_{rot} = 1^{d}.872, V_{eq} = 85.0, R = 3.1, i = 70°

### V410 Tauri (2008)

K4IV WTTS, T_{eff} = 4400K, P_{rot} = 1^{d}.872, V_{eq} = 85.0, R = 3.1, i =

## Hot Stars

Peculiar Ap type magnetic spectrum variable stars

### ε Ursa Majoris

Ao_{p,} T_{eff }= 9500K, P_{rot }= 5^{d}.0887, V_{eq} = 40.9, R = 4, i = 55°

### θ Aurigae

B9_{p}, T_{eff} = 10,500K, P_{rot} = 3^{d}.6187, V_{eq} = 64.6, R = 4.3, i = 54°