New Mexico State Road 6563
|Sunspot Scenic Byway|
|Maintained by NMDOT|
|Length||15.530 mi (24.993 km)|
|South end||Sacramento Peak National Solar Observatory|
|North end||NM 130 near Cloudcroft|
NM 6563 is one of only three four-digit state highways in New Mexico (the others being NM 1113 and NM 5001). It takes its number from the wavelength of the Hydrogen-alpha spectral line (6563 Å) used by scientists at the observatory to study the solar chromosphere and to locate solar flares on the Sun.
The entire route is in Otero County.
|Sunspot||0.000||0.000||Sacramento Peak National Solar Observatory||Southern terminus|
|||15.530||24.993||NM 130 (Cox Canyon Highway) – Cloudcroft, Mayhill||Northern terminus|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- "State Routes" (PDF). New Mexico Department of Transportation. Archived from the original (PDF) on October 29, 2005. Retrieved November 30, 2010.
- Herow, William C. (April 1997). America's Scenic Drives: Travel Guide & Atlas. Roundabout Publications. p. 259. ISBN 978-1-885464-28-6. Retrieved November 30, 2010.
- Google (November 30, 2010). "NM 6563" (Map). Google Maps. Google. Retrieved November 30, 2010.
- "Sunspot Scenic Byway" (PDF). New Mexico Department of Transportation. Retrieved October 1, 2015.
- National Solar Observatory. "Sizing Up Your Solar System". Archived from the original on September 26, 2007. Retrieved June 11, 2007.
- National Optical Astronomy Observatories Newsletter. The Observatories. 1989. Retrieved November 30, 2010.