Vectores de fine line

Ringed planet orbit diagram

Great circles sphere

Aurora arc diagram

Hand tracing an ellipse

Ellipse construction diagram

Ray angle diagram

Prism spectrum diagram

Zones of the globe

Trade winds diagram

Celestial sphere with circles

Horizons seen from a mountain

Planetary positions diagram

Transit of a planet diagram

Orbit projection diagram

Zodiacal light diagram

Elliptical orbit diagram

Hand with planetary signs

Sun and earth diagram

Celestial circle with zodiac

Zodiac globe 02

Zodiac globe 01

Inferior conjunction diagram

Curved horizon diagram

Ringed planet in outline

Armillary globe

Comet and globe diagram

Ray diagram with a globe

Celestial sphere diagram

Ecliptic globe diagram

Orbit diagram

Eclipse shadow diagram

Comet and shadow diagram

Shadow cone diagram

Planet with markings

Angular measurement diagram

Earth and sun orbit diagram

Orbit of moons diagram 01

Orbit and sphere diagram

Small snail crawling

Snail with raised tentacles

Snail with a flared lip

Smooth spindle shell outline

Spined shell from above

Rope lashed to a spar 01

Lashed spars

Knotted rope ends 02

Rope bend diagram 04

Rope handle on a case

Rope loops with knots

Anchor and crossed swords mark

Six-rayed sea creature

Knobbed starfish

Anchors and dancetty shield

Boring mollusc in its tube

Bivalve with siphons out

Bivalve with a fringed siphon

Snail with a swollen body

Snail with a smooth shell

Bivalve with a bulging body

Bivalve with paired tubes