🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.6

Radius: 8.9

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.86 AU - 1.12 AU

Year: 636 Days

Day: 11.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,030,795 km

• M1: 110,702 km (0.115 R)
• M2: 453,282 km (0.11 R)
• M3: 858,093 km (0.086 R)
• M4: 1,142,329 km (0.107 R)
• M5: 1,428,061 km (0.102 R)
• M6: 2,013,737 km (0.065 R)
• M7: 2,328,341 km (0.055 R)
• M8: 2,987,619 km (0.056 R)
• M9: 3,348,898 km (0.095 R)
• M10: 4,001,893 km (0.114 R)
• M11: 4,642,471 km (0.066 R)
• M12: 5,062,093 km (0.059 R)
• M13: 5,577,457 km (0.096 R)
• M14: 6,014,582 km (0.068 R)
• M15: 6,357,311 km (0.08 R)
• M16: 6,713,055 km (0.063 R)
• M17: 7,040,375 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.5

Radius: 11.1

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.57 AU - 1.59 AU

Year: 1282 Days

Day: 14.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,030,795 km

• M1: 138,079 km (0.07 R)
• M2: 547,229 km (0.032 R)
• M3: 1,293,124 km (0.099 R)
• M4: 1,711,400 km (0.065 R)
• M5: 2,172,011 km (0.057 R)
• M6: 3,054,190 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737

Radius: 8.4

Gravity: 10.45 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.29 AU - 1.91 AU

Year: 1307 Days

Day: 5.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,030,795 km

• M1: 110,702 km (0.11 R)
• M2: 385,813 km (0.053 R)
• M3: 1,217,278 km (0.088 R)
• M4: 1,739,225 km (0.073 R)
• M5: 3,007,964 km (0.094 R)
• M6: 3,565,216 km (0.049 R)
• M7: 5,044,590 km (0.11 R)
• M8: 6,102,995 km (0.104 R)
• M9: 6,919,799 km (0.111 R)
• M10: 8,279,345 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.2

Radius: 8.8

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.53 AU - 2.39 AU

Year: 1772 Days

Day: 12.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,030,795 km

• M1: 109,506 km (0.058 R)
• M2: 464,501 km (0.111 R)
• M3: 742,005 km (0.111 R)
• M4: 1,048,083 km (0.089 R)
• M5: 1,350,869 km (0.1 R)
• M6: 2,353,773 km (0.076 R)
• M7: 2,789,103 km (0.058 R)
• M8: 4,370,651 km (0.115 R)
• M9: 4,683,311 km (0.102 R)
• M10: 6,245,113 km (0.112 R)
• M11: 6,786,956 km (0.109 R)
• M12: 7,592,391 km (0.092 R)
• M13: 7,883,658 km (0.092 R)
• M14: 9,977,879 km (0.08 R)
• M15: 10,718,538 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.7

Radius: 13.1

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2 AU - 2.16 AU

Year: 1937 Days

Day: 10.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,030,795 km

• M1: 162,912 km (0.033 R)
• M2: 1,612,366 km (0.108 R)
• M3: 2,078,662 km (0.055 R)
• M4: 3,006,468 km (0.093 R)
• M5: 3,509,566 km (0.112 R)
• M6: 4,568,420 km (0.082 R)
• M7: 6,112,270 km (0.087 R)
• M8: 6,814,482 km (0.099 R)
• M9: 7,785,372 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.1

Radius: 10.8

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.14 AU - 2.22 AU

Year: 2078 Days

Day: 7.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,030,795 km

• M1: 134,937 km (0.071 R)
• M2: 530,025 km (0.101 R)
• M3: 888,611 km (0.064 R)
• M4: 1,392,457 km (0.057 R)
• M5: 1,946,119 km (0.112 R)
• M6: 3,140,508 km (0.112 R)
• M7: 3,481,292 km (0.111 R)
• M8: 4,065,023 km (0.106 R)
• M9: 5,682,475 km (0.118 R)
• M10: 6,056,171 km (0.105 R)
• M11: 6,611,627 km (0.115 R)
• M12: 7,665,544 km (0.099 R)
• M13: 8,683,708 km (0.116 R)
• M14: 9,604,333 km (0.099 R)
• M15: 11,054,834 km (0.118 R)
• M16: 11,396,067 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.4

Radius: 6.5

Gravity: 14.21 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 7.38 AU - 9.02 AU

Year: 15161 Days

Day: 17.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 121.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 52,030,795 km

• M1: 80,932 km (0.111 R)
• M2: 310,416 km (0.039 R)
• M3: 609,312 km (0.112 R)
• M4: 1,540,110 km (0.059 R)
• M5: 2,156,304 km (0.104 R)
• M6: 3,320,325 km (0.09 R)
• M7: 3,667,242 km (0.117 R)
• M8: 4,126,956 km (0.084 R)
• M9: 6,560,315 km (0.074 R)
• M10: 7,150,329 km (0.119 R)
• M11: 9,707,107 km (0.065 R)
• M12: 10,194,646 km (0.097 R)
• M13: 10,927,526 km (0.114 R)
• M14: 11,755,550 km (0.102 R)
• M15: 14,489,900 km (0.099 R)
• M16: 16,607,907 km (0.042 R)
• M17: 18,592,323 km (0.109 R)
• M18: 20,377,025 km (0.027 R)
• M19: 20,818,189 km (0.082 R)
• M20: 21,719,816 km (0.097 R)
• M21: 21,995,225 km (0.114 R)
• M22: 23,989,066 km (0.083 R)
• M23: 25,791,570 km (0.104 R)
• M24: 26,204,012 km (0.063 R)
• M25: 27,682,338 km (0.114 R)
• M26: 32,930,530 km (0.112 R)
• M27: 37,869,205 km (0.049 R)
• M28: 42,272,918 km (0.105 R)
• M29: 52,409,520 km (0.039 R)
• M30: 53,738,398 km (0.095 R)
• M31: 54,242,393 km (0.077 R)
• M32: 56,290,388 km (0.086 R)
• M33: 57,859,669 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 189

Radius: 6.7

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 8.87 AU - 11.85 AU

Year: 21531 Days

Day: 16.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 52,030,795 km

• M1: 83,326 km (0.094 R)
• M2: 376,239 km (0.085 R)
• M3: 592,408 km (0.047 R)
• M4: 875,746 km (0.049 R)
• M5: 1,248,245 km (0.103 R)
• M6: 1,984,266 km (0.101 R)
• M7: 2,911,324 km (0.1 R)
• M8: 4,754,220 km (0.086 R)
• M9: 6,615,816 km (0.097 R)
• M10: 7,261,929 km (0.042 R)
• M11: 7,600,320 km (0.073 R)
• M12: 8,538,897 km (0.109 R)
• M13: 10,806,651 km (0.096 R)
• M14: 11,247,965 km (0.069 R)
• M15: 12,049,211 km (0.065 R)
• M16: 13,384,372 km (0.036 R)
• M17: 14,415,400 km (0.117 R)
• M18: 15,154,264 km (0.079 R)
• M19: 16,417,319 km (0.089 R)
• M20: 20,208,877 km (0.118 R)
• M21: 25,116,286 km (0.097 R)
• M22: 26,382,332 km (0.081 R)
• M23: 29,893,694 km (0.064 R)
• M24: 33,240,198 km (0.097 R)
• M25: 34,884,129 km (0.061 R)
• M26: 38,206,099 km (0.11 R)
• M27: 39,358,601 km (0.098 R)
• M28: 42,137,831 km (0.108 R)
• M29: 43,783,258 km (0.103 R)
• M30: 44,621,754 km (0.07 R)
• M31: 45,613,588 km (0.12 R)
• M32: 46,330,909 km (0.077 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 18,958 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit