PSR J1719-1438 & The "Diamond Planet" [Addon]

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CM1215 M
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CM1215 M
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#1by CM1215 » 05.09.2017, 15:51

Greetings.

I have made an addon that adds the millisecond pulsar PSR J1719-1438 and its known planetary companion, PSR J1719-1438b, nicknamed the "Diamond Planet" due to it's carbon composition and high density. It is an addon I made a year or two ago, and it hasn't been changed since. Here are some screenshots:
PSR J1719-1438.jpg

PSR J1719-1438b.jpg


I know, the texture is very basic, but I'm not very good at making textures that aren't based off of already created textures. If only I could get a better texture...

Here is the download link: https://drive.google.com/open?id=0B5A59f3et_cJLUxZeE1DZG5RdDg

If there is anything you think needs changed, please let me know.

Also, let me know what you think of it.

Enjoy!
CM1215: Celestial master in learning.

SVision M
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#2by SVision » 08.09.2017, 12:19

The addon turned out very nice :smile: , but not completely scientific.
PSR 1719-1413 is a neutron star and they are extremely hot and the object identified as PSR 1719-1413 is very close to its companion (0.004 a.u) and makes a full turn in 2 hr 10 min. This means that the exoplanet is at a distance of 95 less than the distance from the Sun to Mercury :eek: . Yes, and the mass with the radius is wrong with you. The real estimate is close to 1 mass of Jupiter at a radius of 0.4 the radius of Jupiter. Judging from the density - oxygen, most likely, predominates on the surface of the planet, and carbon concentrates in depth. The enormous pressure acting on the planet suggests that the carbon crystallizes, forming (possibly) a diamond. According to calculations, its average density is about 23 g / cm³, that is, it is much denser than gas giants. The nature of the object is controversial. According to scientists, most likely it is a former white dwarf from which the pulsar "pulled" about 99.9% of the substance, leaving only its superdense core and turning it into such an exotic planet. Probably the pulsar will eventually destroy this world with its gravitational influence :sad: .

Added after 3 minutes 10 seconds:
CM1215 wrote:I know, the texture is very basic, but I'm not very good at making textures that aren't based off of already created textures. If only I could get a better texture...
Go here. Here you can find a lot of interesting information :wink:

CM1215 M
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#3by CM1215 » 08.09.2017, 13:19

I'll see what I can do...

I thought the distance was correct on my addon. The planet's radius was about 3000 km off, though. I fixed that easily. I don't believe you can input mass and density into the SSC file.
CM1215: Celestial master in learning.

selden
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#4by selden » 08.09.2017, 20:05

You can include a Mass statement, but Celestia ignores it. If you include a Mass statement, it would be just to help people understand the values of the parameters that Celestia does use. In particular, the correct values of Period and SemiMajorAxis have to be calculated by you.
Selden

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#5by SVision » 12.09.2017, 22:52

selden wrote:You can include a Mass statement, but Celestia ignores it. If you include a Mass statement, it would be just to help people understand the values of the parameters that Celestia does use. In particular, the correct values of Period and SemiMajorAxis have to be calculated by you.
Selden all correctly answered :smile: . Sorry that did not answer because there is a little time and I rarely go there
Hmm ... I have a question. Is THIS REAL TEMPERATURE :eek: ??? This is not an error in Celestia???
iWNdM_U5zr4.jpg

:eek: If this really is the true temperature, then this "planet" will be where the temperature of the blue stars is of the main sequence, and even this is the absolute temperature record...KELT-9b and (especially) WASP-33b are not standing nearby. Is the Kepler-70 planets and planetary pulsar Lich(PSR B1257+12)

Added after 1 minute 43 seconds:
Maybe this is indeed the remainder of the white dwarf?

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#6by selden » 12.09.2017, 23:32

I suspect it's wrong. My understanding is that Celestia's temperature calculation is relatively simple and can't handle large extremes. Unfortunately, "Temperature" seems to be another SSC entry which Celestia (both v1.6.1 and v1.7) ignores.
Selden


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