X Cyg: observations from 1886 until today
Abstract
Because of methodical reasons many early observations of X Cygni between 1886 and 1914 are biased. Taking these biased data out of calculation there is no evidence of a period change left.
- Publication:
-
Open European Journal on Variable Stars
- Pub Date:
- December 2005
- Bibcode:
- 2005OEJV...13....1M