R. F. Griffin
![A photometric atlas of the spectrum of Arcturus [for the wavelengths] [lambda lambda] 3600-8825Å](https://s3.amazonaws.com/readfeedstatic/book_covers/thumbnails/rf-placeholder.png)
A photometric atlas of the spectrum of Arcturus [for the wavelengths] [lambda lambda] 3600-8825Å- A photometric atlas of the spectrum of Arcturus [lambdalambda]3600-8825 Å
- A photometric atlas of the spectrum of Procyon [lambda lambda] 3140-7470 Å
- A photometric atlas of the spectrum of Procyon [lambda lambda] 3140-7470 ⁰A