We examine the optical spectrum of two carbon stars in Orion constellation. 4056Å C3 complex (STRONG in comets), 4217Å CN, 4380Å C2 Swan, 4738Å C2 Swan, 5165Å C2 Swan (STRONG), 5635Å C2 Swan, 6122Å C2 Swan, 4554Å BaII, 4607Å SrI Also look for the SiC2 bands at 4581Å, 4640Å, 4867Å, 4906Å, 4977Å.
![](https://posts.3cepheids.co.in/wp/wp-content/uploads/2023/02/Carbon-Stars-1024x768.png)