Sunday, 9 January 2011

Unscrew the stars

Today marks the 163rd deathday of Caroline Herschel, who was possibly one of the most extraordinary women I have ever come across. Deemed by her own parents 'too ugly to be married', the middle-class girl grew up in Hanover, Germany, ensured that she was well-educated and used her spinsterhood to her advantage - the time she would have spent caring for her husband and any children they may have had was spent studying space, and she eventually ended up being more famous than her brother William, also a keen astronomer. She produced two astronomical catalogs which are still in use today, and on top of all this, was a professionally-trained soprano, despite being a mere four foot three inches in height. Basically, she's another woman who makes me feel hopelessly inadequate, hoorah!

Caroline Herschel, 16/03/1750 - 09/01/1848

Herschel was one of six children born to Isaac and Anna Ilse Herschel, a middle-class couple from Hanover, Germany. Isaac was a keen musician, and took a job as a bandsman in the Prussian Army, encouraging his children - including Caroline - to become well-educated not just in the sciences and maths, but also in music. However, in 1760 when she was 10, she contracted typhus, a disease which left her growth stunted (she never grew taller than 4'3") and her body physically deformed. Her own father believed that she was too ugly to ever marry, and her mother discouraged her education after this point, believing that she would be more suited to becoming a house servant, which she did from the time of her father's death in 1767, until 1772, when she accepted an invitation from her brother to go and live with him in England.

Because the King of England (George II) was from Hanover, the two countries were united, and the citizens of Hanover were granted dual-citizenship, so William Herschel (Caroline's brother, who was 12 years older than her) had moved to England in 1766, he had found it easy to set up a house in Bath, from where he taught music and organised various concerts. When she arrived, William tutored her in singing, and she became such a good singer that she was the principle soprano of many of the concerts her brother organised, and was even offered a job as a singer in Birmingham, though she declined this.

Despite being talented musicians, both the Herschels' real passions lay in the field of astronomy. William not only enjoyed spending nights looking through telescopes at the stars, but also making his own telescopes. It was Caroline, however, who ultimately proved better than her brother at crafting the instruments - she possessed incredible dexterity and patience and was willing to spend many hours making the devices. As well as this, she taught herself how to properly record the observations her brother made in the style that the key astronomers of the day used. As this work was fairly mundane, her brother encouraged her to start using the telescopes herself, and during the 1780s and 1790s, she discovered many comets, becoming the first woman to do so. 

In 1781, William discovered the planet Uranus (though he initially believed it to be a comet) and was invited to name his discovery. His initial choice of 'George' in honour of the King was overruled in favour of 'Uranus' (after the Greek god of the sky, Ouranos - making it the only planet whose name comes from Greek mythology), but the King was clearly flattered enough to offer him the position of chief astronomer to the royal family. A few years later, in 1787, Caroline was awarded £50 per year by the King to work as William's assistant - an important milestone, as it marked the first time a woman was paid for scientific work.

When William married in 1788, the amount of work he did reduced, but Caroline's output increased, as her brother's wife was able to take over the general running of the household, freeing up more of her time to study space. As well as continuing to discover comets and nebulae, she produced the Catalogue of Stars - a rather dull, but incredibly useful piece of work. With stars being discovered left, right and centre, it was often impossible to tell if your 'new' star had already been spotted by someone a few years ago, especially as the previous catalogue that had been used to confirm new discoveries was many years old. In 1798, the Royal Society published her new catalogue, which contained all the stars from the previous list, with erroneous recordings removed, as well as 560 new stars. 

After William's death in 1822, Caroline returned to Hanover, though she continued to correspond with her brother's son, John, who was also a prominent scientist. In 1828, she was awarded the Gold Medal for Science by the Royal Society (the first of many awards); the next woman to be awarded the medal was Vera Rubin in 1996. She herself died in 1848, aged 97, and though it was true that she never married as her parents predicted, it was because of this that she was able to become one of the very first female scientists to gain international recognition for her work.    

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