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British Astronomical Association Supporting amateur astronomers since 1890 |
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alf CrB: Eclipsing Binary Star | |||
Total Number of Spectra: | 37 | ||
First Spectrum: | JD 2457988.710300 | \ | 23 Aug 2017 05:02:49.920000 UT |
Latest Spectrum: | JD 2460744.054537 | \ | 9 Mar 2025 13:18:31.996800 UT |
Observer Id | Observer Name | Number of Spectra | First Spectrum JD / UT | Latest Spectrum JD / UT |
---|---|---|---|---|
FJQ | J Foster | 37 | 2457988.710300 23 Aug 2017 05:02:49.920000 | 2460744.054537 9 Mar 2025 13:18:31.996800 |