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    British Astronomical Association Supporting amateur astronomers since 1890  | 
    
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| V503 Her: Symbiotic Star | |||
| Total Number of Spectra: | 19 | ||
| First Spectrum: | JD 2457614.479300 | \ | 13 Aug 2016 23:30:11.520000 UT | 
| Latest Spectrum: | JD 2460801.954236 | \ | 6 May 2025 10:54:05.990400 UT | 
| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 2024 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 2022 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 
| 2021 | 6 | 0 | 1 | 0 | 0 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 2019 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 
| 2018 | 4 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 
| 2017 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 
| 2016 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |