- Source: NGC 6790
NGC 6790 is a young, compact planetary nebula with a high surface brightness located in the equatorial constellation of Aquila. Imaging by the Hubble Space Telescope shows elongated shells surrounding the central star. The distance to this nebula is poorly known, but is estimated at 19 kilolight-years, and it is roughly 6,000 years old. The expansion velocity of the neutral hydrogen component is in the range 15−19 km s−1. The central star is a white dwarf with a temperature of around 73,500 K and a photographic magnitude of 11.1. It has a mass of 0.6 M☉, having evolved from a star with a mass about the same as the Sun.
References
External links
Kaler, James B. "NGC 6790 in Aquila". STARS. Retrieved 2020-05-10.
Media related to NGC 6790 at Wikimedia Commons
The Hubble European Space Agency Information Centre Hubble picture and information on NGC 6790