Where are all the procedural red supergiants? Where are all the procedural Class C stars?

[Pirin]

So, was the conclusion that nobody has found a proc-gen M_RedSuperGiant? Or just that they're extremely rare? I've not found one, only MIII and MIV.

And what about F_WhiteSuperGiant, any proc-gen ones in game? I've only found FV and FIV, nothing brighter. Are yellow hypergiants also classed as this? I've only found GV, no other luminosities.

Cheers

It seems M I supergiants dont exist in procedure generated space. I plan one more expedition (after 2.3 hits) to try to find them but dont have high hopes. On other hand, K I supergiants do exist, but they are very rare. And technically they are classified and as "Red Supergiants" too. One example: Phoi Aod KT-Q e5-5036

F I and G I yellow supergiants exist. For some reason they are grouped in some sectors where they are rather common. In one occasion i could see 11 of them simultaneously on the star map. In the rest of galaxy they are rare.

 

[madbilly]

Thanks Pirin, that gives me hope! I'm returning from BP following the anticlockwise route of the Sagittarius-Carina mission and trying to spot every type of star that exists in game. The red and white super giants, plus all the carbon stars and a few of the white dwarfs are what elude me so far. White dwarfs and carbon stars I can quickly find using the route plotter filter, but first I want to find the super giants, which are much harder to find because there's no filter for these.

Then, when in satisfied, I can put my foot down and get back to civilisation (or to Jaques at least)!

 

[Roqinn]

I saw a bunch of Carbon stars in the neutron fields north west of the bubble and below the plane of ecliptic. I don't know if they are procedural or not (more than likely.) As for giants and supergiants..... The only way I have been able to find them is to look on the galaxy map and look for stars that are 'ball shaped' instead of the shape normal stars look like. They will also be larger than normal. That's the best way I can describe it, sorry.

 

[madbilly]

Thanks Roqinn. With help from other commanders a few months ago I worked out how to find giant stars, but they're still few and far between. Your tip on looking in the neutron fields is good, I see that the Sag-Car route skirts the north-west side of the fields, so I hope I'll find plenty of carbon stars there.

Cheers

 

[madbilly]

Well yesterday I had a jackpot day (for me, at least!). I made one jump, opened the GalMap and BAM! I found a M_RedSuperGiant (K0IAB, two of them actually), F_WhiteSuperGiant (G8IAB, so actually a yellow super giant), a bunch of new K_OrangeGiant luminosities I'd not seen before (including binary K6IIAB stars), the first CN giant I've seen (CN5IIIB, and another a moment later!), and a bunch of S and MS luminosities I'd not seen before. Then half an hour later I looked up in the GalMap and in the distance found FIVE WR stars! I didn't have time to get to the WRs so they're bookmarked for later tonight.

So, I guess I'm finally entering the more interesting part of the galaxy, and I imagine that all of the star types are there to be found, we've just got to look in the right place

 

[Mengy]

With help from other commanders a few months ago I worked out how to find giant stars, but they're still few and far between.

Oooh, you have a way to search for giant stars? I just do it Roqinn’s way, browsing the galaxy map manually and looking for them visually, which isn’t terribly effective honestly.

Do you know of a better method?

 

[madbilly]

Well, my GalMap is engineered, or at least the person who operates it is continually fed their preferred materials to ensure the best rolls and therefore the best chance of finding giants. You just need the materials: tea, and biscuits. Works a treat

Seriously, my GalMap is bugged, when I turn around whole groups of stars disappear from right in front of my eyes. Sometimes I think this helps me because occassionally I can see the far away stars, that are bright enough, really easily. Those were the conditions that came together when I found all those giants yesterday.

In other news, I found a 297 solar radii blue sub-giant today, I think that's the biggest star that I've found so far.

 

[EtherealCereal]

Like this you mean?

Having found a few procgen 'red supergiants' I have to say they're not really much to write home about in my opinion. I have my doubts that a procedurally generated supergiant the size of VY Canis Majoris or RS Persei actually exists.

 

[Jackie Silver]

Like this you mean?

http://i.imgur.com/IPYBB1w.jpg

Having found a few procgen 'red supergiants' I have to say they're not really much to write home about in my opinion. I have my doubts that a procedurally generated supergiant the size of VY Canis Majoris or RS Persei actually exists.

The largest proc-gen supergiants I know of are on the order of 500 solar radii. I suspect you're right that there's nothing to rival the handmade biggies; if it's anywhere, it'll probably be in one of the mass code H systems.

 

[EtherealCereal]

I can confirm that. The big hulking B-that's-pretending-to-be-an-A-class, plus the elusive A0 IAO. Both in AA-A H systems.

Thing about those ones is, I feel like if you've seen one you've seen 'em all.

The other interesting thing in my opinion is how the procedurally generated supergiants in mass code E systems seem to have a consistently high concentration of surface materials. Numerous metal-rich bodies to be found in systems like that.

 

[FalconDeLacyHotelEchoLima]

I can confirm that. The big hulking B-that's-pretending-to-be-an-A-class, plus the elusive A0 IAO. Both in AA-A H systems.

Thing about those ones is, I feel like if you've seen one you've seen 'em all.

The other interesting thing in my opinion is how the procedurally generated supergiants in mass code E systems seem to have a consistently high concentration of surface materials. Numerous metal-rich bodies to be found in systems like that.

One I discovered was BLAU THAa AA-A H0, curious (class A 84 solar masses and 453 solar radii). Its companion class O and B look real cute next to it too.

 

[EtherealCereal]

One I discovered was BLAU THAa AA-A H0, curious (class A 84 solar masses and 453 solar radii). Its companion class O and B look real cute next to it too.

Now, you've just brought up an interesting point by calling it an 'A' class. Take a peek at 'star types' on your galaxy map and you'll see that your A class is actually a B8 IAO, which means that supergiant is spectral class B. Dunno why the galaxy map does that but let me tell you it's confusing as hell.

 

[madbilly]

I found binary blue hypergiants today (B5 Ia0 and B8 Ia0), I feel like I'm on something of a role!

@Jackie, your star list isn't on dropbox anymore, any chance you can upload it again please? Or is it already available somewhere else? I'd like to know if I'm wasting my time looking for certain luminosity classes and you've got the most comprehensive records outside of Universal Cartographics itself

 

[Ton618 666]

To begin with, FD use two different sets of luminosity classes - one for hand-authored real stars, and another for proc-gen stars.

With the proc-gen stars, the luminosity classes use the A -> AB -> B distinction which is normally seen in supergiant spectra for almost all the spectra. Like VA, VAB, VB. A real star would just be called V without distinction. In the case where a hand-authored primary star has proc-gen secondaries, you can see this illustrated, e.g. HIP 72235 has a G5 V primary and an M7 VA secondary.

Luminosity classes are assigned in-game based strictly on luminosity calculated from (T**4) * (R**2). For real stars, they're usually assigned (AIUI) by looking at pressure broadening effects on spectral lines.

Each spectral temperature subclass (G0, G1, G2...) has a different set of boundary values for the different possible luminosity classes. A G0 star of 1 solar luminosity will be called G0 VB. A G1 star of 1 solar luminosity will be called G1 VAB, and so on. Not all luminosity classes are available for each spectral temperature subclass. The overall consequence is a stepped distribution where some stars of lower luminosity can appear to have a brighter luminosity class than stars of higher luminosity...

(I haven't worked out the underlying formula that determines the shape of the steps - I have a lot of empirical data and know most of the boundaries fairly well.)

Some of the luminosity divisions are simply backwards as far as I can tell, like B9 IA stars are less luminous than B9 IAB.

And there are one or two instances where luminosities are forced: all M9 stars are M9 VI, all brown dwarfs are V.

Thanks jackie, by the way, why are you everywhere i explore lol,nearly everything has your name on it!

 

[Rudi Raumkraut]

4 years ago she might has answered that question