Wikidata facts
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- discoverer or inventor
- George Willis Ritchey
- time of discovery or invention
- 1917-07-19
- epoch
- J2000.0
- right ascension
- 308.69542
- spectral class
- SN.II
- catalog code
- SN 1917A
- declination
- 60.12472
- apparent magnitude
- 13.6
Sources (1)
via Wikidata · CC0