Sol has a sibling.

General physics and astronomy discussions not directly related to Celestia
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Janus
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Sol has a sibling.

Post #1by Janus » 22.11.2018, 17:41

Not of the sciency goodness, but definitely amusing.
A good place to look for signs of life I would think.
Same make up, same age, same galactic orbit.

https://science.slashdot.org/story/18/11/21/23102 ... star-is-suns-long-lost-sibling

For amusement.


Janus.

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selden
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Post #2by selden » 22.11.2018, 18:25

It's in Celestia: HIP 97507 = HD 186302
Selden

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Joey P. M
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Post #3by Joey P. » 18.03.2019, 03:55

Yes, it is in Celestia, but it is a type G3 star rather than G2.
Joey P.

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vpontin
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Post #4by vpontin » 21.03.2019, 00:30

Is possible to override the type via an extra, just like we do with any SSC file?

Gurren Lagann
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Post #5by Gurren Lagann » 21.03.2019, 00:55

vpontin wrote:Is possible to override the type via an extra, just like we do with any SSC file?

Code: Select all

Modify 97507 { SpectralType "G2V" }

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vpontin
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Post #6by vpontin » 21.03.2019, 01:02

THANKS A LOT!

Added after 3 minutes 44 seconds:
Anyway i created a GH issue addressing this (althrough in Wikipedia they also say this star is a G3, dunno what is correct).

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LukeCEL
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Post #7by LukeCEL » 21.03.2019, 04:44

vpontin wrote:(althrough in Wikipedia they also say this star is a G3, dunno what is correct).

I'm think it's G3/5V. Solar twins don't necessarily have to be G2V (see the list on Wikipedia for an example). Although an exact solar twin would have the exact parameters as the Sun, this is unlikely because no two stars are identical. Also, SIMBAD and all the other sources in VizieR say that the spectral type is G3/5V or some variation of that. (Maybe they just copied from the HD catalogue, but that's a different problem.)


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