Supporting amateur astronomers since 1890
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British Astronomical Association Supporting amateur astronomers since 1890 |
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| BL Lac: BL Lac Galaxy | |||
| Total Number of Spectra: | 10 | ||
| First Spectrum: | JD 2458405.884500 | \ | 14 Oct 2018 09:13:40.800000 UT |
| Latest Spectrum: | JD 2459822.930900 | \ | 31 Aug 2022 10:20:29.760000 UT |