Inverted pink Prang pencil sketch of the Orion Nebula. Made over 3 nights 02/22/2020, 02/24/2020, 02/25/2020. First night sketched the stars on white sketching paper using HB and 4B graphite pencils. Other 2 nights sketched the nebulae beginning in the region of the trapezium. Most of the third night spent correcting obvious errors at the eyepiece. White Pearl eraser proved very helpful along with blending stumps.
At the eyepiece I sketched the stars without a filter. I used a OIII filter while sketching the nebula and needed to use a dim green light to see the pink sketch on white paper. Scope used was 16" f/4.41 Dobsonian reflector on an equatorial platform with a 21 mm widefield eyepiece for a magnification of 85x