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No idea when NASA put this up [1] but it's awesome. It's the basic data on the system as well as some pretty nicely done visualizations including the ability ov

No idea when NASA put this up [1] but it's awesome. It's the basic data on the system as well as some pretty nicely done visualizations including the ability overlay our solar system for scale. Quite interesting actually seeing what a dramatic difference the star type makes on habitable distances. This planet is way closer to its star than Mercury is the Sun, for instance. They could do with a lot more advertising for stuff like this, and not quite so much for dronecopters. [1] - https://exoplanets.nasa.gov/exoplanet-catalog/8921/toi-715-b/ https://exoplanets.nasa.gov/exoplanet-catalog/8921/toi-715-b...

mmastrac 3y ago
This was quite a bit more helpful than the paper itself, thanks.
msk-lywenn 3y ago
0.083 AU means that its sun would be huge in its sky? But it's also smaller so maybe not...
- p1mrx 3y ago
  In general, a lower temperature star (3075 K versus the sun at 5778 K) will appear larger in the sky on a habitable planet.
- zamadatix 3y ago
  I'm getting about 3x the angular diameter of the Sun from Earth, so not particularly huge.
MichaelZuo 3y ago
Thanks, there's so many resources tucked away in obscure places that there's probably a dozen more cool things like this that never get noticed.
throwup238 3y ago
It looks quite a bit bigger than Earth. I don't think anyone will be leaving that atmosphere with chemical propulsion any time soon...
- callamdelaney 3y ago
  Just because it's bigger doesn't mean that the gravity is higher.
  - dr_kiszonka 3y ago
    ”Its mass is 3.02 Earths.”
    - joombaga 3y ago
      Right, but you also have to account for density when calculating surface gravity. TOI-715 b has a log g value of 5.0 +/- 0.2. Earth is 2.992.
      - dr_kiszonka 3y ago
        Good to know. Thanks!
  - efitz 3y ago
    Correct, but it’s mass (weight) is 3x higher than earth’s, and since gravity is proportional to mass, you’d likely be much heavier there. If the radius of the planet was the same as earth’s, the gravity would be 3x higher, but if it’s bigger than earth, it might not be as bad. The formula is g= m/r^2 , where m is the mass of the planet and r is the radius of the planet.
    - wkat4242 3y ago
      Damn I'm gonna have to get serious about that diet before visiting :'(
    - 3y ago
sgt101 3y ago
I like dronecopters!
dr_kiszonka 3y ago
The retro graphics here are gorgeous: https://exoplanets.nasa.gov/alien-worlds/exoplanet-travel-bureau/ https://exoplanets.nasa.gov/alien-worlds/exoplanet-travel-bu... (Stellar, one could say.)
- dylan604 3y ago
  I think they are out of this world myself. The guided tours are interesting. I've mentioned this before, but I am very jealous of this kind of content available for school kids. We had the slide shows with a tape recording with the unforgettable tone to signal to switch to the next slide. We had crappy VHS copies instead of the 8mm film projector, but I'm not sure it was an improvement. All of this interactive material is just so much more immersive.
  - int_19h 3y ago
    Have you seen the stuff that's available in VR these days? It's not just space, too; e.g. here's a pretty engaging game that happens to explain how biological cells work: https://www.youtube.com/watch?v=Exii5RPxMH8 https://www.youtube.com/watch?v=Exii5RPxMH8
- jonhohle 3y ago
  When Costco still did printing we printed serval of those out as posters and hung them up in the kid’s bathroom. The designs are pretty timeless and are fun to daydream about.
- Log_out_ 3y ago
  There was a awesome book filled to the brim with paintings of other worlds. Cycles of fire
s1artibartfast 3y ago
I dont know the intricacies of stellar physics, but my understand that smaller cooler stars are less stable. Despite an average temperature that is habitable, the variability and EM environment is not suitable for an atmosphere. Edit: 1) proximity also leads these planets to be tidally locked, which some argue is not conducive to habitability, though I don't find that especially compelling. 2) The local EM environment and solar flares would not preclude sub-surface habitability, but that is true for planets outside of what we consider the habitable zone as well. e.g. life on Europa has been hypothesized, but it is FAR outside the suns habitable zone.
api 3y ago
At 138 light years any intelligence in this system would start potentially receiving our radio signals in the next two decades. They’d need a massive radio telescope to hear them though since at that distance even the strongest signals would be extremely weak.
dylan604 3y ago
NASA has provided some very compelling visualizations of data over the years. One of my favorites is the meteor showers showing where the debris fields for each one are located within the solar system. You can see the original orbit of the comet that left the debris, where it currently is, when the Earth's orbit crosses the debris field, and just the overall size of the debris so that you can see why some meteor showers are "better" than others. There's plenty of others where you can zoom in/out of the solar system to see the modeled view of the Oort cloud and get a sense of scale interactively of Sol's influence. There's also the interactive image viewers of Hubble and JWST data so we can see the differences between visible/IR spectrum. There are plenty of others as well. Oh, and the fact you can access so much of the raw data to make your own visualizations as you like. Overall, I think my tax dollars are performing nicely for my interests.
- echelon 3y ago
  > Overall, I think my tax dollars are performing nicely for my interests. And for the future scientists and engineers who get exposed to this at an early age!
zamadatix 3y ago
The tool has been around in some form since 2007ish, though the latest update was probably within the last decade. The age probably being why it's not so heavily advertised anymore compared to new activities. I've always been more partial to exoplanet.eu though: https://exoplanet.eu/catalog/toi_715_b--8668/ https://exoplanet.eu/catalog/toi_715_b--8668/. It's not quite as prettied up but it's usually more practical in presentation.
- delta_p_delta_x 3y ago
  I personally prefer the Caltech Exoplanet Archive, which has downloadable datasets, APIs, and also presents everything in one shot: https://exoplanetarchive.ipac.caltech.edu/ https://exoplanetarchive.ipac.caltech.edu/
  - zamadatix 3y ago
    exoplanet.eu also has downloadable datasets (from CSV to database exports) and an API. The Exoplanet Archive is great if you need the exact e.g. photometry data every time though.
hypertexthero 3y ago
See also the Jet Propulsion Lab’s gorgeous Visions of the Future posters: https://www.jpl.nasa.gov/galleries/visions-of-the-future https://www.jpl.nasa.gov/galleries/visions-of-the-future

mmastrac 3y ago

This was quite a bit more helpful than the paper itself, thanks.

msk-lywenn 3y ago

0.083 AU means that its sun would be huge in its sky? But it's also smaller so maybe not...

p1mrx 3y ago
In general, a lower temperature star (3075 K versus the sun at 5778 K) will appear larger in the sky on a habitable planet.
zamadatix 3y ago
I'm getting about 3x the angular diameter of the Sun from Earth, so not particularly huge.

MichaelZuo 3y ago

Thanks, there's so many resources tucked away in obscure places that there's probably a dozen more cool things like this that never get noticed.

throwup238 3y ago

It looks quite a bit bigger than Earth. I don't think anyone will be leaving that atmosphere with chemical propulsion any time soon...

callamdelaney 3y ago
Just because it's bigger doesn't mean that the gravity is higher.
- dr_kiszonka 3y ago
  ”Its mass is 3.02 Earths.”
  - joombaga 3y ago
    Right, but you also have to account for density when calculating surface gravity. TOI-715 b has a log g value of 5.0 +/- 0.2. Earth is 2.992.
    - dr_kiszonka 3y ago
      Good to know. Thanks!
- efitz 3y ago
  Correct, but it’s mass (weight) is 3x higher than earth’s, and since gravity is proportional to mass, you’d likely be much heavier there. If the radius of the planet was the same as earth’s, the gravity would be 3x higher, but if it’s bigger than earth, it might not be as bad. The formula is g= m/r^2 , where m is the mass of the planet and r is the radius of the planet.
  - wkat4242 3y ago
    Damn I'm gonna have to get serious about that diet before visiting :'(
  - 3y ago

sgt101 3y ago

I like dronecopters!

dr_kiszonka 3y ago

The retro graphics here are gorgeous: https://exoplanets.nasa.gov/alien-worlds/exoplanet-travel-bureau/ https://exoplanets.nasa.gov/alien-worlds/exoplanet-travel-bu... (Stellar, one could say.)

dylan604 3y ago
I think they are out of this world myself. The guided tours are interesting. I've mentioned this before, but I am very jealous of this kind of content available for school kids. We had the slide shows with a tape recording with the unforgettable tone to signal to switch to the next slide. We had crappy VHS copies instead of the 8mm film projector, but I'm not sure it was an improvement. All of this interactive material is just so much more immersive.
- int_19h 3y ago
  Have you seen the stuff that's available in VR these days? It's not just space, too; e.g. here's a pretty engaging game that happens to explain how biological cells work: https://www.youtube.com/watch?v=Exii5RPxMH8 https://www.youtube.com/watch?v=Exii5RPxMH8
jonhohle 3y ago
When Costco still did printing we printed serval of those out as posters and hung them up in the kid’s bathroom. The designs are pretty timeless and are fun to daydream about.
Log_out_ 3y ago
There was a awesome book filled to the brim with paintings of other worlds. Cycles of fire

s1artibartfast 3y ago

I dont know the intricacies of stellar physics, but my understand that smaller cooler stars are less stable. Despite an average temperature that is habitable, the variability and EM environment is not suitable for an atmosphere. Edit: 1) proximity also leads these planets to be tidally locked, which some argue is not conducive to habitability, though I don't find that especially compelling. 2) The local EM environment and solar flares would not preclude sub-surface habitability, but that is true for planets outside of what we consider the habitable zone as well. e.g. life on Europa has been hypothesized, but it is FAR outside the suns habitable zone.

api 3y ago

At 138 light years any intelligence in this system would start potentially receiving our radio signals in the next two decades. They’d need a massive radio telescope to hear them though since at that distance even the strongest signals would be extremely weak.

dylan604 3y ago

NASA has provided some very compelling visualizations of data over the years. One of my favorites is the meteor showers showing where the debris fields for each one are located within the solar system. You can see the original orbit of the comet that left the debris, where it currently is, when the Earth's orbit crosses the debris field, and just the overall size of the debris so that you can see why some meteor showers are "better" than others. There's plenty of others where you can zoom in/out of the solar system to see the modeled view of the Oort cloud and get a sense of scale interactively of Sol's influence. There's also the interactive image viewers of Hubble and JWST data so we can see the differences between visible/IR spectrum. There are plenty of others as well. Oh, and the fact you can access so much of the raw data to make your own visualizations as you like. Overall, I think my tax dollars are performing nicely for my interests.

echelon 3y ago
> Overall, I think my tax dollars are performing nicely for my interests. And for the future scientists and engineers who get exposed to this at an early age!

zamadatix 3y ago

The tool has been around in some form since 2007ish, though the latest update was probably within the last decade. The age probably being why it's not so heavily advertised anymore compared to new activities. I've always been more partial to exoplanet.eu though: https://exoplanet.eu/catalog/toi_715_b--8668/ https://exoplanet.eu/catalog/toi_715_b--8668/. It's not quite as prettied up but it's usually more practical in presentation.

delta_p_delta_x 3y ago
I personally prefer the Caltech Exoplanet Archive, which has downloadable datasets, APIs, and also presents everything in one shot: https://exoplanetarchive.ipac.caltech.edu/ https://exoplanetarchive.ipac.caltech.edu/
- zamadatix 3y ago
  exoplanet.eu also has downloadable datasets (from CSV to database exports) and an API. The Exoplanet Archive is great if you need the exact e.g. photometry data every time though.

hypertexthero 3y ago

See also the Jet Propulsion Lab’s gorgeous Visions of the Future posters: https://www.jpl.nasa.gov/galleries/visions-of-the-future https://www.jpl.nasa.gov/galleries/visions-of-the-future