ProtoJeb21

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About ProtoJeb21

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    Exoplaneteer/Modder/Artist

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Profile Information

  • Location Browsing memes on Ross 128 b
  • Interests Astronomy, planetary science/exoplanetology, entomology, meteorology (mainly tropical cyclones), Star Wars, Gravity Falls, drawing, data analysis, mathematics, and hiking.

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  1. Wow, this mod (and the OP) are incredibly well designed. Absolutely spectacular job!
  2. It's already just 38,000 miles above the stellar surface, so it looks like Tartarus will physically merge with the host star. But remember, there's still the possibility of it being an eclipsing binary system.
  3. KOI-2626.01 is finally confirmed!

    About 2.875 gees. Still less than that of LHS 1140 b at 3.25 gees.
  4. Hyper-Earths

    I've added several planets to the Mega Earth page on Wikipedia, including a few planets I would classify as Hyper-Earths: https://en.wikipedia.org/wiki/Mega-Earth
  5. KOI-2626.01 is finally confirmed!

    I looked at where KOI-2626b would fall on Sara Seager's exoplanet mass-radius relationship diagram: It's somewhere around an Earth-like composition with a bit more iron by mass (maybe 20-25%). That high density is mainly due to compression. However, with planets like 55 Cancri e and Tartarus, it seems like there are quite a lot of exceptions to this.
  6. When you're listening to a Christmas song and you think its sung by a girl with a high-pitch voice but it's really Michael Jackson:

    Image result for wat meme

  7. Pulo is 99.9% done. I've finished its textures, fixed its ring, added a nice little haze of an atmosphere, and gave it custom ground scatter. And yet, it's actually solid GS. I also worked on its main moon, Keron. Its one of my favorite Kopernicus objects I've ever made, due to its incredibly diverse landscape and working terrain scatter. Keron is over half the size of Pulo and the two of them are tidally locked to each other, like Pluto and Charon. Meanwhile, @The Cuttlefish Empire has made Scatterer configs for Eotia, Agnostos, Neverita, and Atmisgi. They're all coming out great! Also, a new study was published on arXiv the other day detailing how surface activity on red dwarf stars can seriously change radius estimates on transiting exoplanets. The study team found out that the TRAPPIST-1 planets are about 8% smaller than originally calculated and are slightly denser. Looks like I have a lot more work to do with that system now.
  8. KOI-2626.01 is finally confirmed!

    I'm honestly not sure how they even found density for KOI-2929.01 and the other planets in the study. It could easily be something else entirely.
  9. Finally! The exoplanet KOI-2626.01, which has been a rather well-known candidate for YEARS now, has been confirmed at Kepler-1652b. It's about 1.6 times the radius of Earth with a density of 9.9 g/cm^3, suggesting a mass of around 7.356 Me. This makes Kepler-1652b one of only three habitable zone "Mega Earths", the others being LHS 1140 b (6.6 Me) and K2-3d (11.1 Me). https://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=kepler-1652+b&type=CONFIRMED_PLANET
  10. It would be a great mining planet and may be rich in life-supporting metals (molybdenum, selenium, etc). However, keep in mind that the error bars for all the planets' densities are ridiculously high. Damn noisy stars.
  11. I almost forgot that it's now been two whole full years since I joined the KSP forums. Things sure have changed since I first became a member here. I'd say these forums are, by far, one of the BEST online communities online. Period.

    1. NSEP

      NSEP

      Agreed, im here for one and a half year now and its by far the best forum i have ever talked on.

    2. UranianBlue

      UranianBlue

      I'm glad KSP made something dedicated to their game.

    3. electricpants

      electricpants

      Although I've significantly decreased in activity, I definitely agree that this forum is totally awesome! :D

  12. It turns out that, due to sunspots and other stellar activity, the 7 Trappist-1 planets are about 8% SMALLER than originally calculated. In addition, their masses appear more likely to be those given by the initial announcement. https://arxiv.org/pdf/1711.05691.pdf Below are the newly calculated physical parameters for the planets based off of the information in the article above. THEROS/B: 0.99912 RE, 0.7082 ME, 3.915 g/cm3, 0.7093752g. AUXO/C: 0.96968 RE, 1.158 ME, 7.00278 g/cm3, 1.2314936g. THALLO/D: 0.71024 RE, 0.34395 ME, 5.29 g/cm3, 0.6818304g. EIAR/E: 0.84456 RE, 0.5242 ME, 4.797 g/cm3, 0.7347672g. IRENE/F: 0.9614 RE, 0.5776 ME, 3.5841 g/cm3, 0.62491g. CARPHOS/G: 1.03684 RE, 1.137 ME, 5.624 g/cm3, 1.0575768g. CHEIMON/H: 0.65504 RE. No mass is given, but I estimated a mass of 0.10685 ME based on differences between Study 1 and Study 2 masses for the six TRAPPIST planets. This gives Cheimon a density of 2.096 g/cm3 and a gravity of 0.249023 gees. These results are incredibly important. Not only can the uncertainties caused by red dwarf activity be applied to many Exoplanet Explorers candidates, it gives more insight to the composition of these planets. All but two of the Trappist worlds - Theros and Irene - appear to be pure rock and iron planets, similar to Earth. Thallo and Auxo are likely iron-rich, while Eiar and Carphos seem close in composition to Earth. Theros and Irene have Mars-like densities, implying that about 15-20% of their total mass is water. That, or one or both of the planets have NO iron whatsoever and are 5-10% water by mass. Either way, I'm going to have to do a LOT of revamps of the TRAPPIST-1 system for Interstellar Adventure Revived.
  13. I'm not too sure exactly where I would fit in this. I've found several dozen planet candidates (either by myself or in a collaborative effort), yet I'm not even out of high school. Currently I'm striving to get into MIT.
  14. Message to Luyten b (GJ 273b)

    GJ 3323b might actually be a Venus analogue. The PHL estimates a stellar flux and temperature lower than what the paper it was reported in gives. The planet actually receives about twice the light that Earth gets from the Sun. I'm putting my bets on the outermost planet, GJ 3323c, since it may be a "Super-Europa" or a frosty ocean world or a Titan-like planet.
  15. Holy crap an atmosphere around 55 Cancri e:

    https://phys.org/news/2017-11-lava-exoplanet-cancri-atmosphere.html

    1. SamBelanger
    2. UranianBlue

      UranianBlue

      What did you expect? The planet likely sustains it through volcanic activity though. I still like the burning ice on Gleise 436b better.