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The Star that changed our perspective on the Universe

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Hi all, 
It's often said that great discoveries are made by building on work done by others and Edwin Hubble's discovery in 1923 that M31 was not a Nebula, but in fact a galaxy of it's own is no exception.

His remarkable and perspective shifting discovery was made possible by Henrietta Swan Leavitt's work, providing astronomers with the first standard candle. Her discovery allowed one to know the true luminosity of a Cepheid by simply observing its pulsation period. This in turn allowed Hubble to determine the distance to the star, by comparing its known luminosity to its observed brightness and thus changing our understanding of the Universe.  The star in question is known as V1. 

Today is actually the anniversary of the death of Henrietta Swan Leavitt.

 Image consists of 411 frames of 60 and 120 second exposures

Asi 2600mc through a Takahashi Epsilon 160ed mounted on an AzEq6

Stacked in APP, Processed in APP, PI and PS

Regards,
Richard.

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Last edit: 11 months 2 weeks ago by richardsweeney.
11 months 2 weeks ago #110823

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Excellent Image
John
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We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills
11 months 2 weeks ago #110824

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  • Until_then-Goodnight!
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Replied by Until_then-Goodnight! on topic The Star that changed our perspective on the Universe

That's a beautiful image, and the back story was great - Thanks Richard!

Clear skies, 
Darren. 
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11 months 2 weeks ago #110827

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Replied by michael_murphy on topic The Star that changed our perspective on the Universe

Great image Richard,

Will your next project be to plot the light curve :-)

Michael.
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11 months 2 weeks ago #110828

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Replied by richardsweeney on topic The Star that changed our perspective on the Universe

Excellent Image

Thanks very much.
 

11 months 2 weeks ago #110829

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Replied by richardsweeney on topic The Star that changed our perspective on the Universe

That's a beautiful image, and the back story was great - Thanks Richard!

Clear skies, 
Darren. 

Thanks Darren, I enjoyed reading about their discoveries. 
 

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11 months 2 weeks ago #110830

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Replied by richardsweeney on topic The Star that changed our perspective on the Universe

Great image Richard,

Will your next project be to plot the light curve :-)

Michael.

Thanks Michael, it's on my to do list
 

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11 months 2 weeks ago #110831

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