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Intraday Optical Multiband Observation of BL Lacertae

  • Authors: Yue Fang, Yan Zhang, Qihang Chen, and Jianghua Wu

2022 The Astrophysical Journal 926 91.

  • Provider: AAS Journals

Caption: Figure 1.

Finding chart of BL Lac in the R band. The labels “T” and “1–4” represent BL Lac, the comparison star, the check star, and two field stars, respectively.

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