variables of a Cygni type 
(brighter mag 5.0 in maximum)

Name

max. magnitude

min. magnitude
or
mag. amplitude (*)

period
[days]

MK spectral class

a Cyg

1.21

1.29

A2Iae

e Ori

1.64

1.74

B0.5Iabea

r Leo

3.83

3.9

B1Iab

k Cas

4.22

4.3

B1eaIa

n Cep

4.25

4.35

V0337 Cep

4.69

4.78

B2Ib

V1661 Cyg

4.81

4.87

B3eaIa

m Nor

4.87

4.98

O9.7Iab

GX Vel

4.97

5.04

B5Ia