BAA Logo British Astronomical Association
Supporting amateur astronomers since 1890		 Spectrum of AC Her by Hugh Allen Home Login
Help Objects

Observation Summary for Cygnus X-1

Cygnus X-1: Microquasar Star
Total Number of Spectra:3
First Spectrum:JD 2456930.401900\29 Sep 2014 21:38:44.160000 UT
Latest Spectrum:JD 2459823.442000\31 Aug 2022 22:36:28.800000 UT

Summary by Year and Month

Summary by Observer