🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.5

Radius: 9.4

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.57 AU - 0.75 AU

Year: 377 Days

Day: 7.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,584,701 km

• M1: 116,836 km (0.064 R)
• M2: 453,282 km (0.069 R)
• M3: 765,193 km (0.107 R)
• M4: 1,067,830 km (0.081 R)
• M5: 1,692,999 km (0.064 R)
• M6: 1,992,045 km (0.111 R)
• M7: 2,309,043 km (0.103 R)
• M8: 2,669,574 km (0.077 R)
• M9: 3,564,169 km (0.116 R)
• M10: 3,869,648 km (0.097 R)
• M11: 4,718,167 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.8

Radius: 13.3

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.86 AU - 1.26 AU

Year: 767 Days

Day: 14.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,584,701 km

• M1: 165,605 km (0.116 R)
• M2: 646,861 km (0.098 R)
• M3: 1,359,246 km (0.07 R)
• M4: 1,798,615 km (0.081 R)
• M5: 2,836,076 km (0.086 R)
• M6: 4,224,943 km (0.075 R)
• M7: 4,777,109 km (0.097 R)
• M8: 5,631,163 km (0.086 R)
• M9: 6,341,603 km (0.115 R)
• M10: 6,854,874 km (0.073 R)
• M11: 7,574,888 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236

Radius: 11.1

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.25 AU - 1.75 AU

Year: 1291 Days

Day: 10 Hours

Environment

Temp: -187 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,584,701 km

• M1: 138,079 km (0.113 R)
• M2: 690,843 km (0.1 R)
• M3: 1,339,499 km (0.063 R)
• M4: 2,083,749 km (0.05 R)
• M5: 2,888,884 km (0.064 R)
• M6: 3,816,840 km (0.091 R)
• M7: 5,681,129 km (0.044 R)
• M8: 6,357,610 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.7

Radius: 9.8

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.57 AU - 2.25 AU

Year: 1855 Days

Day: 6.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,584,701 km

• M1: 121,922 km (0.045 R)
• M2: 499,358 km (0.068 R)
• M3: 936,632 km (0.116 R)
• M4: 1,380,788 km (0.083 R)
• M5: 1,924,876 km (0.113 R)
• M6: 2,492,301 km (0.11 R)
• M7: 3,194,513 km (0.034 R)
• M8: 3,777,197 km (0.11 R)
• M9: 4,479,858 km (0.03 R)
• M10: 5,062,093 km (0.092 R)
• M11: 5,834,766 km (0.103 R)
• M12: 6,207,264 km (0.056 R)
• M13: 6,639,752 km (0.091 R)
• M14: 7,046,060 km (0.086 R)
• M15: 7,735,556 km (0.111 R)
• M16: 8,495,513 km (0.079 R)
• M17: 9,138,784 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.1

Radius: 13.8

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.01 AU - 2.99 AU

Year: 2779 Days

Day: 5.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,584,701 km

• M1: 171,738 km (0.102 R)
• M2: 843,134 km (0.104 R)
• M3: 2,145,981 km (0.058 R)
• M4: 2,772,946 km (0.111 R)
• M5: 3,216,653 km (0.119 R)
• M6: 4,063,377 km (0.045 R)
• M7: 4,775,314 km (0.095 R)
• M8: 7,206,429 km (0.082 R)
• M9: 9,180,971 km (0.118 R)
• M10: 10,178,490 km (0.072 R)
• M11: 14,754,988 km (0.118 R)
• M12: 16,918,472 km (0.09 R)
• M13: 17,408,405 km (0.075 R)
• M14: 18,132,608 km (0.102 R)
• M15: 19,404,190 km (0.106 R)
• M16: 19,880,959 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.6

Radius: 11.3

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.05 AU - 6.69 AU

Year: 8747 Days

Day: 13.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,584,701 km

• M1: 143,016 km (0.119 R)
• M2: 765,343 km (0.087 R)
• M3: 1,222,364 km (0.098 R)
• M4: 1,814,323 km (0.093 R)
• M5: 2,340,459 km (0.106 R)
• M6: 3,963,446 km (0.079 R)
• M7: 4,351,054 km (0.044 R)
• M8: 4,703,357 km (0.07 R)
• M9: 5,138,537 km (0.042 R)
• M10: 5,703,269 km (0.097 R)
• M11: 6,345,942 km (0.111 R)
• M12: 9,123,077 km (0.113 R)
• M13: 10,002,862 km (0.086 R)
• M14: 21,545,085 km (0.061 R)
• M15: 21,970,392 km (0.057 R)
• M16: 25,293,410 km (0.106 R)
• M17: 29,560,090 km (0.057 R)
• M18: 30,297,309 km (0.045 R)
• M19: 34,053,562 km (0.104 R)
• M20: 42,210,984 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 242.9

Radius: 6.3

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 8.62 AU - 9.58 AU

Year: 19296 Days

Day: 15.6 Hours

Environment

Temp: -243 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,584,701 km

• M1: 80,484 km (0.066 R)
• M2: 524,041 km (0.073 R)
• M3: 908,657 km (0.1 R)
• M4: 2,178,743 km (0.107 R)
• M5: 2,407,628 km (0.112 R)
• M6: 2,652,669 km (0.108 R)
• M7: 2,936,756 km (0.098 R)
• M8: 5,670,058 km (0.119 R)
• M9: 8,909,750 km (0.088 R)
• M10: 11,306,757 km (0.098 R)
• M11: 12,411,238 km (0.109 R)
• M12: 13,649,908 km (0.074 R)
• M13: 15,589,145 km (0.064 R)
• M14: 15,941,149 km (0.105 R)
• M15: 21,876,893 km (0.092 R)
• M16: 40,698,400 km (0.095 R)
• M17: 41,634,733 km (0.102 R)
• M18: 44,670,822 km (0.1 R)
• M19: 45,238,247 km (0.106 R)
• M20: 47,262,306 km (0.042 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 155 - 10,205 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit