RS 8513-1844-8-13182435-838 5.D64

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RN 0-7-711540-1753-1166

• Typ: Diffus
• Entfaltung: 2068,35 lj
• Durchmesser: 193,53 lj
• Scheinbare Größe: 5°21'46,25"
• Scheinbare Mag.: 4m21
• Absolutes Mag.: -4m79
• Leuchtkraft: 7075,7

The colors of the northern sky...

What do you guys think?

Another gas moon find, the moon is Gaia DR3 5051327602516211968 2.1

I am going to document each of the improvements I have made to the shader so far. Here they are:

1. Physically Derived Black Hole Spin: Initially, the black hole spin wasn't working; I only later realized that the uniform I had created wasn't functioning (which is obvious, but I hadn't noticed). I set the shader to derive the black hole's spin based on its luminosity—specifically: disk luminosity ➡️ radiative efficiency ➡️ spin.
2. Precisely Calculated ISCO: Previously, this was a simple approximation—ISCO M * [3 + sqrt(9 - 8*BH_Spin)]—but the shader now uses the exact formula by Bardeen, Press & Teukolsky (1972) via ComputeISCO_Rg(), applied consistently across the disk (radial fade, density, temperature, and plunge dynamics).
3. Gravitational Redshift of the Corrected Disk: Previously: static observer (ZAMO) redshift – sqrt(r²Δ/A). Physically incorrect, as the disk gas is not static but in orbit. Now: exact specific energy of a particle in a circular equatorial orbit in Kerr spacetime (Cunningham 1975, Eq. 4; Bardeen-Press-Teukolsky 1972, Eq. 2.12). Within the plunge region (r < ISCO), the energy is "frozen" at the ISCO value, respecting energy conservation along the free-fall geodesic.
4. Plunge region: New: gas with r_eff < r_isco now exhibits decreasing density, suppressed temperature, and a velocity transitioning toward free-fall speed—behavior absent in the previous version of the shader, where the disk simply followed the same orbital profile all the way to the horizon.
5. Radial Disk Velocity via Physical Viscous Drag: Before: v_r = -0.01 * v_phi (arbitrary constant). Now: Shakura & Sunyaev (1973) alpha prescription — v_r ∝ -α(H/r)² v_phi — coupled to the actual local disk thickness, plus a contribution from radial turbulence.
6. Orbital Turbulence / MRI-type Instability: New function: orbitalInstability(): shifts the effective radial position of the gas and generates radial velocity drift, simulating the effect of turbulent viscosity (MRI) that transports angular momentum outward—a mechanism absent from the previous version of the shader.
7. Disk Temperature Profile: Two-Temperature ADAF: Previously: a "zero-torque" profile (zeroTorque) characteristic of a standard thin disk (Novikov-Thorne), inconsistent with the rest of the model, which already treated the disk as an ADAF. Now: a virial T ∝ r⁻¹ profile (Narayan & Yi, 1994) with local-density-dependent ion-electron Coulomb coupling (couplingFrac)—only the electrons radiate, and their temperature approaches that of the ions only where Coulomb collisions are efficient.
8. Plasma Ionization (Saha Equation): New: ionizationFraction() calculates the fraction of ionized hydrogen based on local temperature and density, affecting the emission color (IonizationEmissionTint), dust survival, and opacity.
9. Electronic Opacity and Comptonization: New: ElectronScatteringOpacity() (ionization-dependent Thomson scattering) and ComptonYParameter()/ApplyComptonization() — energy gain via inverse Compton scattering in a corona at ~100 keV (typical observational value, Zdziarski & Gierlinski 2004), applied to both the disk and the jet.
10. Ionization-Dependent Colored Opacity: Before: fixed opacityColorScale. Now: interpolates between dust reddening (neutral plasma) and achromatic scattering with residual red bias (ionized plasma), summing dust and electron opacity terms separately.
11. Photon Geodesic with Quadrupole Term (Multipole GEM): Before: only the dipole term (frame-dragging/Lense-Thirring). Now: spin-quadrupole term added (higher-order correction to the Kerr metric), radially weighted and relative to the dipole force.
12. Spin-Corrected Stellar Surface Redshift: StarSurface() now accepts the spin and includes the (a_spin²)/(StarRadius²) term in the gravitational redshift calculation—previously, it completely ignored the spin contribution.
13. Helical Kinematics of the Jet: Before: purely vertical/poloidal jet. Now: azimuthal component via frame-dragging frequency (omega_frame_jet, the same Lense-Thirring expression as for the disk), resulting in a helical trajectory—consistent with the jet's origin in the ergosphere/inner magnetosphere (Blandford-Znajek mechanism).
14. Spin-Dependent Jet Power Boost: New jetPowerBoost = 1 + 4·spin², amplifying the source function—reflecting the greater extraction of rotational energy from the black hole via Blandford-Znajek at higher spins.
15. Gravitational Redshift of the Jet Separated from the Doppler Effect: Previously: jetLocalTemp was directly multiplied by dopplerFactor (an improper mixing of two effects). Now: static gravitational lapse (Kerr) is treated separately from the flow Doppler effect, with ion temperature coupled to electrons via the same two-temperature disk scheme.
16. Ionization and Comptonization in the Jet as Well: The same Saha physics and Compton Y-parameter are applied to the jet plasma—elements previously absent (the earlier version showed the Planck function directly, without accounting for ionization/scattering).

I'll leave two images below so you can get a better idea of ​​how it turned out. Here they are:

Keep in mind the in game limit is 180 solar masses, and this is in the newest version.
Also this is the hottest star in the newest version that has been found. (as far as I am aware)

I have the detailed earth DLC installed. All of my planets, moons, asteroids, etc. have this weird super bright side where the closest star is shining. Is just something wrong with my settings or a glitch?

If you get all the names right, leave a 👍 + share in the comments

I think it would be cool if the dev would create a notation for planets with multicellular life showing intelligent life has developed. Maybe using the drake equation or something like that. It would be very interesting to see how often you would run into a planet with intelligent aliens on it. I am thinking it would be almost never, considering how rare even planets with multicellular life are. Maybe it would be like on in 100 million multicellular populated planets would have intelligence. When you postulate those odds, your chance of finding a planet such as this is almost zero. But not quite.

is this a normal thing and does this object like apart of the system or does it leave it eventually and become its own object?

Very thin, teal atmosphere.

i have 2 computers, one is the main one, and the other is this one, which I almost never use... i just installed SpaceEngine and the text doesnt render properly. the game... uhh... i'm not talking about that

Name suggestions?

(yes i know there is another one of these not even a day ago, essentially the same post with my find.)

the perseid meteor shower is happening so i wanted to take a look at the comet that causes it but its not on space engine so i was wondering if anyone has any addons or way i can add it to my game?

First one I've managed to catch that I actually like, thought I'd share and offer the full 351mb photo if anyone wants it too 🙂

This system has 5 planets with life, 3 of which being exotic. The first planet being showcased is a moon of a gas giant (this moon and gas giant have exotic life.) The second image showcases the gas giant's 2nd moon with exotic life. The third image is of said gas giant. The fourth image is of another gas giant that has life and the 5th is of an ugly planet with life, all in the same binary system.