🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.55 AU - 0.71 AU

Year: 328 Days

Day: 20.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 36.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.7

Radius: 12.3

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.84 AU - 0.92 AU

Year: 542 Days

Day: 12.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,527,994 km

• M1: 153,487 km (0.092 R)
• M2: 627,264 km (0.055 R)
• M3: 1,243,308 km (0.117 R)
• M4: 1,932,954 km (0.083 R)
• M5: 2,435,902 km (0.107 R)
• M6: 3,172,672 km (0.101 R)
• M7: 3,832,847 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.3

Radius: 14.7

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.95 AU - 1.05 AU

Year: 656 Days

Day: 8.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,527,994 km

• M1: 182,809 km (0.059 R)
• M2: 1,243,158 km (0.103 R)
• M3: 1,913,207 km (0.109 R)
• M4: 2,386,086 km (0.115 R)
• M5: 2,982,234 km (0.099 R)
• M6: 3,512,408 km (0.093 R)
• M7: 4,390,698 km (0.074 R)
• M8: 4,985,050 km (0.088 R)
• M9: 5,444,764 km (0.106 R)
• M10: 6,565,103 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.5

Radius: 11.6

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.49 AU - 1.73 AU

Year: 1340 Days

Day: 7.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,527,994 km

• M1: 144,212 km (0.086 R)
• M2: 559,646 km (0.095 R)
• M3: 1,005,896 km (0.117 R)
• M4: 1,400,834 km (0.087 R)
• M5: 1,963,472 km (0.106 R)
• M6: 2,945,432 km (0.052 R)
• M7: 3,611,592 km (0.071 R)
• M8: 4,068,464 km (0.113 R)
• M9: 4,698,720 km (0.12 R)
• M10: 5,435,938 km (0.1 R)
• M11: 6,225,067 km (0.082 R)
• M12: 7,617,524 km (0.068 R)
• M13: 8,200,656 km (0.094 R)
• M14: 9,967,257 km (0.094 R)
• M15: 10,905,386 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.7

Radius: 13.8

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 4.78 AU - 5.16 AU

Year: 7268 Days

Day: 7.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,527,994 km

• M1: 238,010 km (0.109 R)
• M2: 709,842 km (0.083 R)
• M3: 1,236,576 km (0.104 R)
• M4: 1,949,111 km (0.106 R)
• M5: 2,663,440 km (0.074 R)
• M6: 4,505,439 km (0.107 R)
• M7: 4,940,320 km (0.098 R)
• M8: 6,857,866 km (0.08 R)
• M9: 17,227,541 km (0.076 R)
• M10: 17,722,261 km (0.108 R)
• M11: 20,105,655 km (0.075 R)
• M12: 23,376,462 km (0.106 R)
• M13: 28,431,524 km (0.078 R)
• M14: 31,370,225 km (0.057 R)
• M15: 32,643,452 km (0.043 R)
• M16: 41,519,842 km (0.066 R)
• M17: 42,538,603 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588

Radius: 13.8

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5.04 AU - 5.7 AU

Year: 8163 Days

Day: 10.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,527,994 km

• M1: 171,738 km (0.111 R)
• M2: 851,960 km (0.118 R)
• M3: 1,595,461 km (0.119 R)
• M4: 2,521,771 km (0.076 R)
• M5: 3,343,662 km (0.104 R)
• M6: 3,830,154 km (0.063 R)
• M7: 4,337,740 km (0.112 R)
• M8: 4,804,186 km (0.109 R)
• M9: 5,742,314 km (0.083 R)
• M10: 7,941,702 km (0.1 R)
• M11: 9,253,077 km (0.07 R)
• M12: 11,253,949 km (0.066 R)
• M13: 12,302,181 km (0.119 R)
• M14: 13,529,183 km (0.119 R)
• M15: 17,290,073 km (0.093 R)
• M16: 19,336,572 km (0.101 R)
• M17: 19,853,881 km (0.112 R)
• M18: 20,456,312 km (0.12 R)
• M19: 25,813,412 km (0.037 R)
• M20: 29,149,893 km (0.099 R)
• M21: 30,026,985 km (0.065 R)
• M22: 32,659,908 km (0.081 R)
• M23: 34,570,422 km (0.079 R)
• M24: 38,846,977 km (0.036 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.4

Radius: 9.2

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.36 AU - 6.62 AU

Year: 8439 Days

Day: 13.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,527,994 km

• M1: 115,041 km (0.092 R)
• M2: 434,582 km (0.093 R)
• M3: 895,642 km (0.116 R)
• M4: 3,152,177 km (0.075 R)
• M5: 3,755,206 km (0.09 R)
• M6: 4,567,223 km (0.1 R)
• M7: 5,869,024 km (0.097 R)
• M8: 7,440,250 km (0.095 R)
• M9: 7,824,417 km (0.059 R)
• M10: 8,221,749 km (0.109 R)
• M11: 9,629,465 km (0.047 R)
• M12: 11,141,601 km (0.08 R)
• M13: 12,058,636 km (0.102 R)
• M14: 14,334,318 km (0.056 R)
• M15: 15,917,513 km (0.12 R)
• M16: 19,644,744 km (0.045 R)
• M17: 20,678,914 km (0.114 R)
• M18: 21,209,388 km (0.089 R)
• M19: 24,082,265 km (0.078 R)
• M20: 26,223,609 km (0.099 R)
• M21: 28,025,665 km (0.109 R)
• M22: 33,301,234 km (0.092 R)
• M23: 36,720,742 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221

Radius: 4.7

Gravity: 10 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 6.06 AU - 6.64 AU

Year: 10497 Days

Day: 20.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 62,527,994 km

• M1: 58,493 km (0.117 R)
• M2: 233,971 km (0.116 R)
• M3: 395,387 km (0.116 R)
• M4: 600,935 km (0.04 R)
• M5: 911,051 km (0.087 R)
• M6: 1,310,178 km (0.103 R)
• M7: 1,874,761 km (0.059 R)
• M8: 2,697,549 km (0.104 R)
• M9: 3,085,905 km (0.095 R)
• M10: 3,422,799 km (0.096 R)
• M11: 3,783,779 km (0.099 R)
• M12: 4,244,989 km (0.098 R)
• M13: 4,715,474 km (0.106 R)
• M14: 5,278,262 km (0.07 R)
• M15: 7,639,514 km (0.095 R)
• M16: 8,020,391 km (0.09 R)
• M17: 8,176,272 km (0.101 R)
• M18: 8,373,890 km (0.067 R)
• M19: 10,207,960 km (0.101 R)
• M20: 10,437,144 km (0.055 R)
• M21: 11,049,448 km (0.068 R)
• M22: 15,594,082 km (0.106 R)
• M23: 19,510,704 km (0.079 R)
• M24: 21,022,989 km (0.075 R)
• M25: 24,278,687 km (0.078 R)
• M26: 30,048,677 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 958.6

Radius: 5.5

Gravity: 31.69 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.47 AU - 8.87 AU

Year: 12595 Days

Day: 24.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 62,527,994 km

• M1: 69,413 km (0.109 R)
• M2: 262,843 km (0.118 R)
• M3: 761,004 km (0.105 R)
• M4: 1,178,831 km (0.096 R)
• M5: 1,469,051 km (0.089 R)
• M6: 1,688,212 km (0.114 R)
• M7: 2,958,298 km (0.096 R)
• M8: 3,859,625 km (0.118 R)
• M9: 4,662,966 km (0.076 R)
• M10: 5,316,708 km (0.081 R)
• M11: 5,798,114 km (0.098 R)
• M12: 6,636,311 km (0.05 R)
• M13: 7,461,792 km (0.092 R)
• M14: 8,402,613 km (0.088 R)
• M15: 9,794,621 km (0.092 R)
• M16: 12,129,395 km (0.057 R)
• M17: 12,766,233 km (0.038 R)
• M18: 13,225,200 km (0.059 R)
• M19: 13,559,701 km (0.099 R)
• M20: 14,245,607 km (0.072 R)
• M21: 19,534,939 km (0.046 R)
• M22: 22,047,734 km (0.081 R)
• M23: 22,994,988 km (0.101 R)
• M24: 25,584,228 km (0.092 R)
• M25: 27,270,794 km (0.118 R)
• M26: 28,141,155 km (0.049 R)
• M27: 32,894,477 km (0.117 R)
• M28: 33,385,009 km (0.108 R)
• M29: 35,013,082 km (0.061 R)
• M30: 35,653,062 km (0.118 R)
• M31: 36,562,168 km (0.053 R)
• M32: 36,824,713 km (0.083 R)
• M33: 40,493,152 km (0.119 R)
• M34: 41,198,206 km (0.088 R)
• M35: 43,804,351 km (0.071 R)
• M36: 44,696,852 km (0.058 R)
• M37: 46,211,231 km (0.114 R)
• M38: 47,291,477 km (0.068 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: 471 - 17,645 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit