SX Arietis variable


SX Arietis variables are a class of variable stars. They are generally B-type main sequence stars of spectral types B0p to B9p— high-temperature analogues of Alpha2 Canum Venaticorum variables—and exhibit strong magnetic fields and intense He I and Si III spectral lines. They have brightness fluctuations of approximately 0.1 magnitudes with periods of about one day. The prototype of this class is 56 Arietis, which bears the variable star designation SX Arietis.

List

The following list contains selected SX Arietis variable that are of interest to amateur or professional astronomy. Unless otherwise noted, the given magnitudes are in the V-band.
Star
Average
magnitude
Spectral
type
Period
Distance
Alpha Sculptoris4.27B7IIIp238
Sigma Lupi4.42B2III3.02176
HD 1258234.42B7IIIpv8.82140
HR 29494.43B5IV1.90113
28 Cygni4.93B2.5Ve0.70317
36 Lyncis5.29B93.83178
V913 Scorpii5.43B5V0.98170
V692 Coronae Australis5.46B2.5III1.67357
HD 216995.46B8IIImnp2.48186
56 Arietis5.76B6IV-V0.73154
HD 1338805.79B8IVSi0.88111
HD 288435.81B9III1.37146
3 Scorpii5.87B8III/IV1.46158
V957 Scorpii5.90B6V258
V929 Scorpii5.92B8V1.49161
HR 73556.02B2Vn0.52273
HD 1457926.42B6IV1.70144
HD 370176.56B1.5V380
Sigma Orionis E6.61B2Vp1.19329
HD 377766.96B2V1.54330
HD 370587.30B3Vp15.26
HD 1849277.44B2V9.35543
HD 1916127.80O8fpe5382041
HD 352987.91B7IV1.85532
HD 366688.05B8V2.12249
HD 346268.16B1.5IVnp0.50483