Table 5: Known variable stars.
Name Type Spectr. N Mean Drift Periodic Variable Erratic Variable Remarks
  (GCVS) type   mag. ampl. P(d) ampl. Time scale ampl.  
        B (mag)   (mag) (d) (mag)  
U Aur M M9 392 11.184   408.09 2.5     (4), see Fig. 10
RZ Aur EA/SD A 306 11.564   3.010644 ?     (1), (3)
FP Aur EA   286 11.531 +0.35 0.947236(?)       (5), see text
FU Aur LB CII 426 11.152       20-100 0.4 carbon star
FW Aur EA/SD   322 11.671   2.55997 ?     (1), (2), (3)
HH Aur INSB: G6IV 485 9.95           constant,  $\sigma = 0.104^m$
V356 Aur DSCT F4IIIp 483 8.69   0.18916       constant,  $\sigma = 0.139^m$
V362 Aur LC M1.5Ia 438 9.612 +0.23     1000-3000 0.4 see Fig. 11
V399 Aur SR S 431 11.734   8000: 0.5 30-1000 0.3 (8)
V438 Aur GCAS B2pshl 415 8.044       50-6000 0.5 see text and Fig. 12
BK Ori M M7 165 11.899   346.3 >2.5     (1), (6), see text and Fig. 13
CO Ori INSB G5Vpe 404 11.711  -0.50     20-1000 0.8 (1)
GW Ori INST K3V:e 476 10.818 +0.14          
HK Ori INSA A4pe 426 11.608 +0.13 2400 0.25 30-1000 0.2 (8), see Figs. 14 and  15
OS Ori EA/SD A0 358 12.087   2.383525 >0.6     (1), (3), (10), see Fig. 16
V440 Ori LB M5 357 11.692 +0.13         (10),  $\sigma = 0.32^m$
V451 Ori GCAS B9 425 9.858  -0.09     100-3000 0.1  
V1374 Ori BE B8 481 8.082  -0.25 5685 0.5     (8), (9), see Fig. 17
V1376 Ori LB M5 483 9.029   see (11) see (11)     =NSV 2258, (11)
V1409 Ori INA AIab:e 471 10.490   3445: 0.1:     =NSV 2041, (8)
SV Tau EA/SD B9 467 10.128   2.1669051 1.2     (4), (7) see Fig. 18
AB Tau SRA M3 456 11.649   143 0.25 10-50 0.2 (6), see text and Fig. 19
V1163 Tau BE B1Vne 469 8.451       20-6000 0.5 see Fig. 20
$\textstyle \parbox{17cm}{ \hspace*{1.5mm}$(1)$\space Minimum~magnitude below th... ... d}$ }82$\space and~$41\hbox{$.\!\!^{\rm d}$ }37$ ; amplitudes 0.1$-$0.15~mag.}$

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