About Constilation Cassiopia

Cassiopeia, a figure in Greek mythology, was Queen of Aethiopia and wife of King Cepheus of Ethiopia. She was arrogant and vain, characteristics that led to her downfall. Her origins are obscure. Nonnus calls her a nymph, while according to Stephanus, she was called Iope, the daughter of Aeolus, from whom the town of Joppa (Jaffa) derived its name.
Mythology: Cassiopeia boasted that she (or her daughter Andromeda), was more beautiful than all the Nereids, the nymph-daughters of the sea god Nereus. This brought the wrath of Poseidon, ruling god of the sea, upon the kingdom of Aethiopia. Accounts differ as to whether Poseidon decided to flood the whole country or direct the sea monster Cetus to destroy it. In either case, trying to save their kingdom, Cepheus and Cassiopeia consulted a wise oracle, who told them that the only way to appease the sea gods was to sacrifice their daughter. Accordingly, Andromeda was chained to a rock at the sea's edge and left to be killed by the sea monster. Perseus arrived and instead killed Cetus, saved Andromeda and married her. Poseidon thought Cassiopeia should not escape punishment, so he placed her in the heavens chained to a throne in a position that referenced Andromeda's ordeal. The constellation resembles the chair that originally represented an instrument of torture. Cassiopeia is not always represented tied to the chair in torment; in some later drawings she holds a mirror, symbol of her vanity, while in others she holds a palm frond.

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Constellation The constellation Cassiopeia, near to the pole star, can be seen from latitudes north of 35°N during the whole year. The constellation is also visible in countries north of the Tropic of Capricorn, in late spring.

Ethiopian tradition According to the 1922 regnal list of Ethiopia, Cassiopeia ruled Ethiopia as part of the Agdazyan dynasty and reigned for 19 years from 1890 to 1871 BC, with dates following the Ethiopian calendar.

To Find Don's Star, In in the summer months (April - August) in the north-eastern section of the sky, low on the horizon locate the 4 stars that for a "W" which is the constillation Cassiopia. The second star from the left will be Ruchbar sits just above Don's Star

Delta Cassiopeiae, also known as Ruchbah or Rukbat, meaning "knee," is a possible Algol-type eclipsing binary star with a maximum brightness of magnitude 2.7. It has been reported to show eclipses of less than 0.1 magnitudes with a period of 2 years and 1 month, but this has never been confirmed. It is 99.4±0.4 light-years from Earth. Delta Cassiopeiae was the star used by Jean Picard in 1669 to establish the length on the Earth's surface corresponding to one degree, and hence the radius of the Earth.

From Ruchbah, move down and to the left about half a pinky width, there you shuld find Don's Star. Above Don's Star you should see 3 bright stars that for a triangle between Don's Star and Ruchbah'

Captured 07/03/2025 at around 9pm with an Celestron Origin Telescope taking 10 second exposures for about 90 minutes. Then staking and processng using ON1 photo processing. Other images were screen shoot from Stellarium desktop software.

Below is the raw image from the telescope