Two Nested Shells around the Blue Supergiant ALS 19653

@article{Drudis2020TwoNS,
  title={Two Nested Shells around the Blue Supergiant ALS 19653},
  author={Josep M. Drudis and Vasilii V. Gvaramadze},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2020}
}
We present the results of deep narrowband imaging of two nested shells around the blue supergiant ALS 19653,which confirm that the outer shell is physically associated with the star. 

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