Celestial chart by Andreas Cellarius - Theoria Lunae, Eius Motum Per Eccentricum Et Epicyclum Demonstrans- Vintage Cosmography Astronomy Reproduction Print The chart shows Ptolomy's explanation as to why the position of the moon varies over the course of a lunar cycle. This plate introduces the concept of "epicycles," or secondary orbits undertaken by the moon around a fictional point, that explain why the position of the moon varied with respect to the sun. This theory, while an improvement on previous classical theories, was still unable to predict the exact location of the moon at various points during its orbit, and a superior explanation would have to wait until the development of early modern astronomical theory. Misu4260 ★ Size == 16" x 20" == 20" x 24" == 24" x 28" We print every order with our Epson 9890 and 9900 printer with Epson HDR Ultrachrome archival ink. We also use Epson heavyweight enhanced matte paper. Both combination have an archival rating of 125+ years. It is perfectly for framing, mounting, or direct display on any wall. If you are interested in ordering custom size or custom type paper such as fine art or rag paper, canvas, ...etc, please contact me. If you like the price of the print I am offering, but you can not find the specific map in my store. Please contact me, because chances are I might have them. Disclaimer: Please noted that there will have additional white space around the actual print. For example, if you order a 16x20 size print, there will be approx. 1" to 2" additional space around the print. The additional white space is acting like a cushion during the shipping. The print will move violently up and down during the shipping and there is for sure the side of the print may bend or damage. With the additonal white space on 4 sides, it can prevent this problem. I understand this may cost you extra time to trim the print to fit in a poster frame. I rather you can receive a perfect print instead a damage one.Thank you very much for your order! Your print(s) will be ready to ship within 3 business days. The Etsy will automatically send you the tracking information of your package. Please inspect your order ASAP. If there is any damage on your order, you MUST contact me within 2 days upon arrival. In the future, if you like what you get, I can also print your favorite photos or any images in customize size and paper (photo paper, fine art paper, canvas...etc) in a competitive price. Quality work is my top priority.