RS Cygni

Star name:                                           RS Cygni

Other names:

Constellation:                                      Cygnus

Other ID:                                             SAO 69636, HIP 99653, PPM 84477, HD 192443, B+38 3957

Magnitude:                                          7.1 to 8.5

Absolute magnitude:                            -0.77
+/- 0.92

Luminosity, Sun = 1:                           170 +/- 140

R.A. 2000:                                          20hr 13min 23.662sec

Dec 2000:                                           38deg 43min 44.47sec

Spectral type:                                      C5II

Temperature:

Mass, solar masses:

Radius, solar radii:

Distance in light-years:                       1550 +/- 650

 

This Carbon star lies very close to the Crescent nebula (NGC6888, an emission nebula formed from the Wolf-Rayet star HD 192163) in the constellation Cygnus.  The mean period of the variability of RS Cygni is 434.1 days.

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