Seyfert, Carl Keenan
1911 – 1960
Amerikai csillagász
- Székely Péter: Galaktikus kannibalizmus felsőfokon (Csillagászati hírportál)
- Seyfert-galaxis (Wikipédia)
- Carl Keenan Seyfert (SEDS The Messier Catalog - angol)
- Jay Bitterman: Astronomy Bio...Carl Seyfert (The Lake County (IL) Astronomical Society - angol)
- Carl Keenan Seyfert (Today in Astronomy - angol)
- History (Vanderbilt Dyer Observatory - angol)
- Seyfert's Sextet (Hickson 79) (The Internet Encyclopedia of Science - angol)
- Seyfert galaxies (angol)
- Carl Keenan Seyfert (obituary) (SAO/NASA Astrophysics Data System (ADS) - angol)
- Carl Keenan Seyfert (Wikipedia - angol)
- Seyfert's Sextet (Wikipedia - angol)
- Seyfert (crater) (Wikipedia - angol)
- Carl Keenan Seyfert (Answers.com - angol)