Square Inscribed in a 12-Point Star
Illustration of a square inscribed in a closed concave geometric figure with 24 sides in the shape of…
Triangle Inscribed In A 12-Point Star
Illustration of an equilateral triangle inscribed in a closed concave geometric figure with 24 sides…
Andromeda
"The constellation Andromeda, including its stars down to 5th magnitude, according to Heis; the figure…
Armillary Sphere
"An arrangement of rings, all circles of a single sphere, intended to show the relative positions of…
Chief Ordinary
"Argent, on a chief, gules, two mullets, sable. The chief is an ordinary terminated by an horizontal…
Star Circumscribed About A Circle
Illustration of a 6-point star (convex dodecagon) circumscribed about a circle. This can also be described…
Star Circumscribed About A Circle
Illustration of an 8-point star (convex polygon) circumscribed about a circle. This can also be described…
Star Inscribed In A Circle
Illustration of a 5-point star inscribed in a circle. This can also be described as a circle circumscribed…
Star Inscribed In A Circle
Illustration of a 6-point star created by two equilateral triangles (often described as the Star of…
Star Inscribed In A Circle
Illustration of a 6-point star (convex dodecagon) inscribed in a circle. This can also be described…
Star Inscribed In A Circle
Illustration of an 8-point star, created by two squares at 45° rotations, inscribed in a circle.…
Star Inscribed In A Circle
Illustration of an 8-point star, or convex polygon, inscribed in a circle. This can also be described…
Star Inscribed And Circumscribed About Circles
Illustration of a 6-point star (convex dodecagon) inscribed in a large circle and circumscribed about…
Star Inscribed And Circumscribed About Circles
Illustration of an 8-point star (convex polygon) inscribed in a large circle and circumscribed about…
Azimuth Compass
A compass placed in some convenient part of a ship on the midship line and provided with vanes, screws,…
Celestial Crown
"CELESTIAL CROWN. Distinguished from any other crown by the stars on the points or rays that proceed…
Concave Equilateral Decagon
A 5-point star made from a non-regular concave decagon in which all sides are equal in length.
Divider with Star Pattern
This divider features stars in a horizontal line across the front, as well as folded, fluttery corners…
12-Point Star Inscribed In A Dodecagon
Illustration of a 12-point star (24-sided polygon) inscribed in a regular dodecagon. This can also be…
Concave Equilateral Dodecagon
A 6-point star made from a non-regular concave dodecagon in which all sides are equal in length. There…
Finding the North Star
"Two stars in the Big Dipper opposite the handle indicate the direction toward the North Star, which,…
Observatory
"The observatory. This view is from the field, looking north. On the left is seen the winding Schuylkill,…
Constructing Star Using Pentagons
An illustration of drawing an eight point star using a series of pentagons to create a star. The paper…
Star-Shaped Decagonal Prism
Illustration of a non-regular decagonal prism in the shape of a star. Then ends/bases are made of star-shaped…
Star-Shaped Decagonal Prism
Illustration of a non-regular decagonal prism in the shape of a star. Then ends/bases are made of star-shaped…
Star-Shaped Decagonal Prism
Side view of a non-regular decagonal prism in the shape of a star. Then ends/bases are made of star-shaped…
Spheres of the Ptolemaic System
A diagram showing the order of the universe as expounded by Ptolemy. Its basic concept surmises that…
The Scorpio Constellation, with Libra
"The constellation which is prominent in early summer in the skies of the southern United States (where…
Constructing Stars Using Different Shapes
"Divide the square as indicated by the dotted lines, drawing these as full lines in pencil, but do not…
The Sphere of the Sky
"One standing at O will only see the half of the Sky which is above the circle NESW. The whole sky will…
Greek Square Panel
The Greek square panel is found on the coffer of the Propylaea ceiling, the entrance to the Acropolis…
Star Construction Using Triangles and Squares
A problem exercise to creating a star using series of triangles and squares. The image is divided by…
