DQ Mus: SS Cyg star Using ATLAS forced photometry (Tonry et al. 2018; Shingles et al. 2021), I found that this object is a frequently outbursting SS Cyg star (cycle length 15-20 d, currently in outburst). 2MASS 120022.062 -682935.97 (2000.0) 15.874 15.307 14.872 (in outburst) 120022.049 -682935.94 (2000.0) Gaia_DR2_5859470401309276544 plx=0.604(0.063) dismod=11.1 pmra=-5.704(0.116) pmdec=-0.383(0.118) G=17.740 BP=18.118 RP=17.004 120022.049 -682935.94 (2000.0) Gaia_EDR3_5859470401309276544 plx=0.759(0.049) dismod=10.6 pmra=-5.567(0.046) pmdec=-0.295(0.058) G=17.576 BP=18.087 RP=16.948