🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.7

Radius: 14.5

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.74 AU - 0.94 AU

Year: 497 Days

Day: 7.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,048,443 km

• M1: 180,415 km (0.091 R)
• M2: 1,031,627 km (0.085 R)
• M3: 1,825,094 km (0.036 R)
• M4: 2,380,102 km (0.107 R)
• M5: 2,878,113 km (0.079 R)
• M6: 3,420,855 km (0.095 R)
• M7: 4,031,962 km (0.119 R)
• M8: 4,954,681 km (0.058 R)
• M9: 5,545,144 km (0.099 R)
• M10: 6,296,574 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.8

Radius: 10.5

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.91 AU - 0.93 AU

Year: 570 Days

Day: 12.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,048,443 km

• M1: 131,497 km (0.115 R)
• M2: 484,697 km (0.111 R)
• M3: 846,874 km (0.104 R)
• M4: 1,239,867 km (0.112 R)
• M5: 1,653,056 km (0.086 R)
• M6: 1,997,880 km (0.108 R)
• M7: 2,495,143 km (0.091 R)
• M8: 2,825,754 km (0.064 R)
• M9: 4,341,929 km (0.043 R)
• M10: 5,117,743 km (0.066 R)
• M11: 5,522,256 km (0.112 R)
• M12: 5,878,598 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.2

Radius: 14.1

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.09 AU - 1.23 AU

Year: 807 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,048,443 km

• M1: 175,329 km (0.111 R)
• M2: 680,670 km (0.118 R)
• M3: 1,536,370 km (0.083 R)
• M4: 2,289,296 km (0.118 R)
• M5: 2,810,196 km (0.039 R)
• M6: 3,615,033 km (0.082 R)
• M7: 4,202,653 km (0.093 R)
• M8: 4,836,649 km (0.089 R)
• M9: 5,936,492 km (0.098 R)
• M10: 7,019,282 km (0.118 R)
• M11: 7,938,860 km (0.056 R)
• M12: 8,453,028 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.4

Radius: 14.4

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.98 AU - 1.53 AU

Year: 902 Days

Day: 13.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,048,443 km

• M1: 179,069 km (0.098 R)
• M2: 949,049 km (0.074 R)
• M3: 1,798,466 km (0.117 R)
• M4: 2,835,029 km (0.061 R)
• M5: 3,463,789 km (0.03 R)
• M6: 4,759,456 km (0.106 R)
• M7: 5,403,176 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.9

Radius: 12

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.29 AU - 1.47 AU

Year: 1047 Days

Day: 14.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 24,048,443 km

• M1: 149,747 km (0.069 R)
• M2: 592,408 km (0.118 R)
• M3: 1,062,294 km (0.108 R)
• M4: 1,964,370 km (0.078 R)
• M5: 2,404,187 km (0.097 R)
• M6: 3,359,819 km (0.066 R)
• M7: 4,312,009 km (0.092 R)
• M8: 5,808,885 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505.2

Radius: 10.1

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.14 AU - 4.14 AU

Year: 4484 Days

Day: 14.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 24,048,443 km

• M1: 126,560 km (0.047 R)
• M2: 440,865 km (0.08 R)
• M3: 1,074,711 km (0.116 R)
• M4: 2,410,770 km (0.111 R)
• M5: 2,730,012 km (0.06 R)
• M6: 3,132,280 km (0.103 R)
• M7: 4,418,074 km (0.08 R)
• M8: 5,128,065 km (0.108 R)
• M9: 5,497,273 km (0.068 R)
• M10: 6,963,033 km (0.114 R)
• M11: 7,449,675 km (0.093 R)
• M12: 7,924,349 km (0.112 R)
• M13: 8,382,866 km (0.115 R)
• M14: 9,237,818 km (0.065 R)
• M15: 10,355,613 km (0.12 R)
• M16: 10,691,012 km (0.119 R)
• M17: 11,561,372 km (0.097 R)
• M18: 12,337,636 km (0.111 R)
• M19: 12,667,349 km (0.117 R)
• M20: 14,198,334 km (0.098 R)
• M21: 15,249,558 km (0.087 R)
• M22: 15,574,784 km (0.04 R)
• M23: 16,183,049 km (0.088 R)
• M24: 18,775,879 km (0.058 R)
• M25: 20,041,328 km (0.105 R)
• M26: 22,461,073 km (0.037 R)
• M27: 25,295,205 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455

Radius: 10.3

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.14 AU - 4.32 AU

Year: 5617 Days

Day: 10.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 24,048,443 km

• M1: 141,071 km (0.079 R)
• M2: 698,472 km (0.058 R)
• M3: 1,417,739 km (0.1 R)
• M4: 2,124,739 km (0.117 R)
• M5: 2,780,426 km (0.109 R)
• M6: 4,492,873 km (0.108 R)
• M7: 5,052,668 km (0.103 R)
• M8: 5,377,295 km (0.051 R)
• M9: 6,883,297 km (0.105 R)
• M10: 7,876,328 km (0.112 R)
• M11: 9,079,843 km (0.065 R)
• M12: 9,643,378 km (0.105 R)
• M13: 10,401,989 km (0.099 R)
• M14: 11,109,287 km (0.119 R)
• M15: 12,917,477 km (0.106 R)
• M16: 14,156,147 km (0.095 R)
• M17: 14,859,108 km (0.067 R)
• M18: 17,290,522 km (0.118 R)
• M19: 19,247,112 km (0.067 R)
• M20: 20,109,993 km (0.1 R)
• M21: 21,699,470 km (0.115 R)
• M22: 22,271,533 km (0.118 R)
• M23: 24,971,026 km (0.099 R)
• M24: 25,678,475 km (0.12 R)
• M25: 26,077,302 km (0.065 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.7

Radius: 10.2

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.72 AU - 4.88 AU

Year: 5757 Days

Day: 10.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 24,048,443 km

• M1: 126,859 km (0.085 R)
• M2: 520,601 km (0.045 R)
• M3: 931,546 km (0.113 R)
• M4: 2,265,361 km (0.084 R)
• M5: 3,109,990 km (0.075 R)
• M6: 3,605,009 km (0.101 R)
• M7: 4,053,055 km (0.059 R)
• M8: 5,322,991 km (0.098 R)
• M9: 5,779,415 km (0.062 R)
• M10: 6,294,929 km (0.103 R)
• M11: 7,017,935 km (0.113 R)
• M12: 7,605,107 km (0.106 R)
• M13: 8,066,766 km (0.094 R)
• M14: 8,961,810 km (0.104 R)
• M15: 9,346,426 km (0.07 R)
• M16: 12,148,095 km (0.031 R)
• M17: 15,104,149 km (0.099 R)
• M18: 22,083,638 km (0.116 R)
• M19: 22,550,832 km (0.054 R)
• M20: 29,520,148 km (0.118 R)
• M21: 32,029,951 km (0.102 R)
• M22: 33,745,839 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.2

Radius: 5.3

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 5.13 AU - 8.13 AU

Year: 11023 Days

Day: 17.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 24,048,443 km

• M1: 75,697 km (0.095 R)
• M2: 559,197 km (0.067 R)
• M3: 746,344 km (0.105 R)
• M4: 1,008,589 km (0.098 R)
• M5: 3,081,716 km (0.098 R)
• M6: 4,012,664 km (0.095 R)
• M7: 5,016,465 km (0.029 R)
• M8: 5,563,246 km (0.068 R)
• M9: 7,182,493 km (0.053 R)
• M10: 8,116,881 km (0.083 R)
• M11: 8,758,806 km (0.111 R)
• M12: 9,472,388 km (0.102 R)
• M13: 10,593,624 km (0.034 R)
• M14: 13,048,674 km (0.06 R)
• M15: 15,426,832 km (0.057 R)
• M16: 16,077,283 km (0.085 R)
• M17: 16,859,082 km (0.117 R)
• M18: 21,284,187 km (0.077 R)
• M19: 21,886,468 km (0.105 R)
• M20: 23,976,500 km (0.119 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 310 - 16,618 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit