Entity Relationship Diagram - ERD - Software for Design Crows Foot ER Diagrams

The vector stencils library "Zodiac constellations" contains 24 icons of Zodiac constellations star charts and Zodiac sign symbols.
Use these shapes to draw astronomical diagrams and illustrations in the ConceptDraw PRO diagramming and vector drawing software extended with the Astronomy solution from the Science and Education area in ConceptDraw Solution Park.

The vector stencils library "Zodiac constellations" contains 24 icons of Zodiac constellations star charts and Zodiac sign symbols.
Use these shapes to draw astronomical diagrams and illustrations in the ConceptDraw PRO diagramming and vector drawing software extended with the Astronomy solution from the Science and Education area in ConceptDraw Solution Park.

Design elements - Zodiac constellations
The vector stencils library "Zodiac constellations" contains 12 star constellation charts.
"In Western astrology, astrological signs are the twelve 30º sectors of the ecliptic, starting at the vernal equinox (one of the intersections of the ecliptic with the celestial equator), also known as the First Point of Aries. The order of the astrological signs is Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces." [Astrological sign. Wikipedia]
"Constellations.
The zodiacal signs are distinct from the constellations associated with them, not only because of their drifting apart due to the precession of equinoxes but also because the physical constellations take up varying widths of the ecliptic, so the sun is not in each constellation for the same amount of time. Thus, Virgo takes up five times as much ecliptic longitude as Scorpius. The zodiacal signs are an abstraction from the physical constellations, and each represent exactly one twelfth of the full circle, or the longitude traversed by the Sun in about 30.4 days.
Some "parazodiacal" constellations are also touched by the paths of the planets. The MUL.APIN lists Orion, Perseus, Auriga, and Andromeda. Furthermore, there are a number of constellations mythologically associated with the zodiacal ones : Piscis Austrinus, The Southern Fish, is attached to Aquarius. In classical maps, it swallows the stream poured out of Aquarius' pitcher, but perhaps it formerly just swam in it. Aquila, The Eagle, was possibly associated with the zodiac by virtue of its main star, Altair. Hydra in the Early Bronze Age marked the celestial equator and was associated with Leo, which is shown standing on the serpent on the Dendera zodiac. Corvus is the Crow or Raven mysteriously perched on the tail of Hydra.
Due to the constellation boundaries being redefined in 1930 by the International Astronomical Union, the path of the ecliptic now officially passes through thirteen constellations: the twelve traditional 'zodiac constellations' plus Ophiuchus, the bottom part of which interjects between Scorpio and Sagittarius. Ophiuchus is an anciently recognized constellation, catalogued along with many others in Ptolemy's Almagest, but not historically referred to as a zodiac constellation. The inaccurate description of Ophiuchus as a sign of the zodiac drew media attention in 1995, when the BBC Nine O'Clock News reported that "an extra sign of the zodiac has been announced by the Royal Astronomical Society". There had been no such announcement, and the report had merely sensationalized the 67-year-old 'news' of the IAU's decision to alter the number of designated ecliptic constellations." [Zodiac. Wikipedia]
The star maps example "Design elements - Zodiac constellations" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Astronomy solution from the Science and Education area of ConceptDraw Solution Park.

The vector stencils library "Zodiac constellations" contains 24 icons of Zodiac constellations star charts and Zodiac sign symbols.
Use these shapes to draw astronomical diagrams and illustrations in the ConceptDraw PRO diagramming and vector drawing software extended with the Astronomy solution from the Science and Education area in ConceptDraw Solution Park.