3C 390.3 is a broad-line radio galaxy located in the constellation Draco. It is also a Seyfert 1 galaxy which is an X-ray source.
References
External links Simbad 3CRR atlas: 3C390.3
Wikipedia
3C 390.3 is a broad-line radio galaxy located in the constellation Draco. It is also a Seyfert 1 galaxy which is an X-ray source.
References
External links Simbad 3CRR atlas: 3C390.3