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| Nebula | PK075+05.1 | RA (J2000) | 19 57 05.0 |
| Constellation | Cygnus | Dec | +39 49 36.0 |
| Size (arcsec) | stellar | Other names | PK 075+05.1 |
| Mag (V) | 11.5 | V1016 Cyg (N 1964) | |
| Surface Brightness (mag/arcsec2) | n/a |
| HAG 24" RC, SBIG STF-8300M, Lhires III, 300 gr/mm, 1800 sec, 2020-08-06@23:53 |
| Symbiotic Star |
| A white dwarf or neutron star with a red giant companion will accrete material from the companion onto its surface and if this interaction can be detected spectroscopically it is termed a Symbiotic Star. In the majority of such systems known, nuclear reactions take place in the accreted material at the surface the white dwarf and the resulting high temperature (100,000 K) allows ionization of a large fraction of the cool giant's wind producing an emission spectrum. |
DSS2 image, 10 arcmin square
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179 / 209 (pg 59) |