2nd October 2004
Proper name: Vega
Bayer letter: a Lyrae
Flamsteed number: 3 Lyrae
GCVS catalog number: alpha Lyrae
RA (J2000.0):18h 36m 56.3s Dec (J2000.0): +38° 47' 01"
200mm F5 newtonian , SC1.5 toucam RAW mode. 100 lines/mm grating.
300 stacked frames at 40% gain and 1/33s exposure. I have been able to improve my spectrum of Vega, and in the process calibrated my changed ccd - grating distance at 14.95Å/pixel.
The Balmer series Hydrogen lines are marked, and delta is more clearly defined than in my previous effort.
I do not know what the dip between beta and gamma is.
Details of how I make these graphs.
Location: Curdridge, Southampton, UK. 51N 15W.
Details of equipment