Quote:
Originally Posted by GrampianStars
A detailed Carbon Stars list 
for the enthusiast observer
all difficult for me with protanopic vision  |
With the kindest respect...
1) Is there any reason why the range of stars are only between +40 and -40 declination?
2) That HIP 63955 with a K0 spectral class is in this list. I.e. The B-V is only +1.18 - and is not very red.
3) What is the source of the magnitude range and the Spectral Class?
Did you get this list from SIMBAD, as
HIP 63955 is also wrongly given as a Carbon Star (which it is not)? In this instance, the CN tacked on the end is the chemical Cyogen lines not is not Carbon lines.
Also
HIP 85148 is spectral class A0 !!
Note: I have attached a pdf file of your list, with highlights (in Red) some of the questionable data. Underlined stars probably shouldn't be in the list.