New Moon: The moon is not visible in the sky. Except during a solar eclipse, Waxing Crescent: The moon is less than one-half illuminated by the sun but less than one quarter illuminated. Occurs when the moon's illumination is increasing, First Quarter: The moon is one-half illuminated by the sun. Occurs when the moon's illumination is increasing, Waxing Gibbous: The moon is more than one-half illuminated by the sun but not completely illuminated. Occurs when the moon's illumination is increasing, Full Moon
Preservationist is generally understood to mean historic preservationist: one who advocates to preserve architecturally or historically significant buildings, structures, objects or sites from demolition or degradation.
Conservation encompasses actions taken toward the long-term preservation of cultural property. Conservation activities include examination, documentation, treatment, and preventative care, supported by research and education. Conservators are professionals who work to physically save our cultural property from the ravages of time, the threats of pollution, and the devastation brought by natural disasters. A conservator may be trained at a conservation graduate training program or by lengthy apprenticeship with experienced senior colleagues.