This quarter-scale, 360* x 180*, 13 second CCD image, was taken by the NPS Night Sky Team based in Ft. Collins, CO,
and displays the panorama from the 8000 ft parking lot at the top of the Capulin Volcano 45 miles SE of Raton, New Mexico.
This is a Bortle 2 class site, with a limiting magnitude of ~7.1. At low angle (20*) on this image a slight haze of airglow is
discernible, which was just barely visible to the eye. North is at the center and South is at both ends. Light domes are from
cities over the horizon. From azimuth 0* - 90* are visible trees on the rim of the volcano itself.
This image is a combination of Natural
Light Pollution and Anthropogenic Light Pollution, also visible in this
image (full scale
is 13662 x 3360 pixels), are the Milky Way, Pleiades, Orion Nebula, Hyades, stars to~10.5, M31, M33, M41 (Beehive cluster),
Jupiter setting at 248*, zodicial light (@~240*- 300*) and about 13 jet trails. Light pollution data in the form of Total Sky
Brightness and Net Light Pollution is currently being reduced and published from a decade of field trips to about 70 National
Parks, in an effort to help the parks find ways to lessen the encroachment and minimize the impact of light pollution of the
night sky. It is keystone of the parks doctrine to maintain it's orginal, historical state for the benefit of all that visit and
future generations, that should have a right to see the parks in their natural state.
Net Light Pollution from Capulin Preliminary data- Not for citing!
April 7, 2010