HR Diagram Test

[Julien563]

Hello everyone,

 I would like to make a HR Digramm with the FWHMEexcentricity technics.
I tried to follow instructions on this topic : http://pixinsight.com/forum/index.php?topic=8010.0
But data don't match between them. I mean when you must select data to try to match INDEX to do B-V after it, first of all, i don't have a lot of points which correspond between them and after, my diagram doesn't correspond to a HR Diagram. I don't know where i'm wrong, i think that i have found the good Constant that i must add on the Magnitude equation : -2.5log(Flux)+C with a referential star that i picked thx to Annotate Image.
So i transfer you Excel file with all my data here.

Thx in advance

EXCEL FILE :


Best Regards

Julien