National Solar Observatory (U.S.)
![An atlas of a dark sunspot umbral spectrum in the infrared from 1970 to 8640 cm⁻¹ (1.16 to 5.1 [microns])](https://s3.amazonaws.com/readfeedstatic/book_covers/thumbnails/rf-placeholder.png)
An atlas of a dark sunspot umbral spectrum in the infrared from 1970 to 8640 cm⁻¹ (1.16 to 5.1 [microns])- High spatial resolution solar observations
- National Solar Observatory users' manual
- Relations between chromospheric-coronal heating and mass loss in stars
- Sunspot umbral spectra in the region 4000 to 8640 cmp-p1s (1.16 to 2.50 [microns])
- The CN spectrum