🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.53 AU - 0.55 AU

Year: 256 Days

Day: 15.5 Hours

Environment

Temp: -117 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.7

Radius: 12.8

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.8 AU - 1.06 AU

Year: 579 Days

Day: 13.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,842,906 km

• M1: 159,172 km (0.087 R)
• M2: 561,142 km (0.106 R)
• M3: 1,406,519 km (0.045 R)
• M4: 2,037,822 km (0.114 R)
• M5: 2,461,783 km (0.117 R)
• M6: 2,910,127 km (0.09 R)
• M7: 3,426,240 km (0.118 R)
• M8: 4,164,655 km (0.076 R)
• M9: 4,644,266 km (0.1 R)
• M10: 5,195,235 km (0.07 R)
• M11: 5,752,337 km (0.092 R)
• M12: 6,509,751 km (0.109 R)
• M13: 7,398,512 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.6

Radius: 10.4

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.1 AU - 1.82 AU

Year: 1139 Days

Day: 13.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,842,906 km

• M1: 130,749 km (0.1 R)
• M2: 465,399 km (0.12 R)
• M3: 1,233,584 km (0.109 R)
• M4: 2,111,125 km (0.103 R)
• M5: 2,608,538 km (0.109 R)
• M6: 2,996,445 km (0.05 R)
• M7: 3,484,882 km (0.103 R)
• M8: 4,417,027 km (0.068 R)
• M9: 5,112,058 km (0.034 R)
• M10: 5,680,082 km (0.057 R)
• M11: 6,104,491 km (0.107 R)
• M12: 6,598,313 km (0.118 R)
• M13: 7,854,636 km (0.102 R)
• M14: 8,241,197 km (0.113 R)
• M15: 8,640,623 km (0.088 R)
• M16: 9,416,588 km (0.072 R)
• M17: 10,205,866 km (0.074 R)
• M18: 10,733,797 km (0.054 R)
• M19: 11,176,158 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.1

Radius: 12.5

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.06 AU - 2.32 AU

Year: 2093 Days

Day: 10.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,842,906 km

• M1: 156,779 km (0.069 R)
• M2: 581,936 km (0.051 R)
• M3: 1,117,197 km (0.116 R)
• M4: 2,005,659 km (0.116 R)
• M5: 3,725,436 km (0.107 R)
• M6: 7,898,319 km (0.09 R)
• M7: 9,073,260 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.7

Radius: 14.9

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.06 AU - 2.94 AU

Year: 2552 Days

Day: 11.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,842,906 km

• M1: 185,352 km (0.11 R)
• M2: 677,978 km (0.089 R)
• M3: 1,380,788 km (0.12 R)
• M4: 2,020,020 km (0.102 R)
• M5: 2,741,830 km (0.114 R)
• M6: 3,432,972 km (0.06 R)
• M7: 4,108,257 km (0.074 R)
• M8: 5,704,167 km (0.072 R)
• M9: 6,253,341 km (0.045 R)
• M10: 7,129,984 km (0.079 R)
• M11: 8,475,318 km (0.059 R)
• M12: 9,615,852 km (0.098 R)
• M13: 10,607,087 km (0.117 R)
• M14: 13,822,993 km (0.107 R)
• M15: 14,379,796 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.2

Radius: 10.5

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.32 AU - 3.02 AU

Year: 2817 Days

Day: 9.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,842,906 km

• M1: 130,599 km (0.071 R)
• M2: 577,747 km (0.109 R)
• M3: 1,008,439 km (0.096 R)
• M4: 1,398,441 km (0.114 R)
• M5: 2,095,417 km (0.055 R)
• M6: 2,591,334 km (0.027 R)
• M7: 3,010,059 km (0.118 R)
• M8: 3,659,912 km (0.117 R)
• M9: 4,241,399 km (0.112 R)
• M10: 4,807,028 km (0.106 R)
• M11: 5,781,659 km (0.109 R)
• M12: 6,618,958 km (0.111 R)
• M13: 7,355,578 km (0.115 R)
• M14: 8,200,656 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.1

Radius: 9.8

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.8 AU - 2.94 AU

Year: 3139 Days

Day: 11.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,842,906 km

• M1: 121,922 km (0.078 R)
• M2: 770,728 km (0.102 R)
• M3: 2,119,802 km (0.07 R)
• M4: 2,438,445 km (0.096 R)
• M5: 3,613,985 km (0.094 R)
• M6: 4,116,185 km (0.089 R)
• M7: 4,499,605 km (0.034 R)
• M8: 5,006,143 km (0.047 R)
• M9: 6,425,079 km (0.072 R)
• M10: 6,756,737 km (0.105 R)
• M11: 7,553,496 km (0.05 R)
• M12: 8,882,673 km (0.054 R)
• M13: 9,333,112 km (0.081 R)
• M14: 10,988,263 km (0.08 R)
• M15: 11,907,991 km (0.063 R)
• M16: 16,718,908 km (0.045 R)
• M17: 18,593,819 km (0.109 R)
• M18: 20,346,058 km (0.087 R)
• M19: 20,735,312 km (0.106 R)
• M20: 21,262,196 km (0.101 R)
• M21: 22,069,127 km (0.068 R)
• M22: 23,601,458 km (0.041 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.1

Radius: 8

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.91 AU - 3.61 AU

Year: 3801 Days

Day: 9.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,842,906 km

• M1: 99,632 km (0.027 R)
• M2: 624,422 km (0.093 R)
• M3: 890,706 km (0.11 R)
• M4: 2,153,761 km (0.085 R)
• M5: 2,673,464 km (0.117 R)
• M6: 3,884,159 km (0.116 R)
• M7: 4,135,633 km (0.114 R)
• M8: 5,522,405 km (0.068 R)
• M9: 7,920,160 km (0.083 R)
• M10: 8,274,707 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.8

Radius: 4.4

Gravity: 26.33 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 5.44 AU - 8.5 AU

Year: 11881 Days

Day: 19.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 52,842,906 km

• M1: 56,698 km (0.095 R)
• M2: 824,434 km (0.069 R)
• M3: 1,504,805 km (0.113 R)
• M4: 1,725,611 km (0.032 R)
• M5: 1,884,634 km (0.098 R)
• M6: 2,123,691 km (0.064 R)
• M7: 2,402,093 km (0.072 R)
• M8: 2,540,172 km (0.075 R)
• M9: 2,746,617 km (0.079 R)
• M10: 2,919,851 km (0.119 R)
• M11: 3,870,845 km (0.051 R)
• M12: 4,315,001 km (0.086 R)
• M13: 4,460,560 km (0.113 R)
• M14: 7,178,753 km (0.071 R)
• M15: 7,761,736 km (0.087 R)
• M16: 10,000,468 km (0.088 R)
• M17: 10,153,207 km (0.116 R)
• M18: 10,411,264 km (0.073 R)
• M19: 10,779,873 km (0.086 R)
• M20: 14,368,576 km (0.1 R)
• M21: 16,113,935 km (0.103 R)
• M22: 17,037,552 km (0.067 R)
• M23: 17,995,876 km (0.114 R)
• M24: 18,450,055 km (0.065 R)
• M25: 18,834,222 km (0.076 R)
• M26: 20,919,168 km (0.11 R)
• M27: 21,590,264 km (0.095 R)
• M28: 24,511,162 km (0.11 R)
• M29: 25,540,396 km (0.081 R)
• M30: 27,187,319 km (0.063 R)
• M31: 27,885,492 km (0.027 R)
• M32: 30,476,826 km (0.085 R)
• M33: 32,438,952 km (0.109 R)
• M34: 33,337,437 km (0.068 R)
• M35: 36,012,845 km (0.101 R)
• M36: 36,612,732 km (0.116 R)
• M37: 44,891,030 km (0.094 R)
• M38: 45,585,762 km (0.098 R)
• M39: 45,725,636 km (0.098 R)
• M40: 47,569,281 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 374.1

Radius: 4.1

Gravity: 22.25 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.96 AU - 9.8 AU

Year: 15663 Days

Day: 15.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 52,842,906 km

• M1: 51,013 km (0.037 R)
• M2: 205,398 km (0.087 R)
• M3: 401,820 km (0.104 R)
• M4: 582,983 km (0.097 R)
• M5: 780,751 km (0.09 R)
• M6: 1,298,958 km (0.12 R)
• M7: 1,578,557 km (0.112 R)
• M8: 2,125,935 km (0.064 R)
• M9: 2,576,075 km (0.065 R)
• M10: 4,046,622 km (0.089 R)
• M11: 4,861,632 km (0.086 R)
• M12: 5,531,980 km (0.099 R)
• M13: 6,338,312 km (0.119 R)
• M14: 6,531,892 km (0.111 R)
• M15: 7,473,910 km (0.069 R)
• M16: 8,834,203 km (0.11 R)
• M17: 9,623,332 km (0.109 R)
• M18: 10,511,943 km (0.052 R)
• M19: 10,728,860 km (0.097 R)
• M20: 19,347,792 km (0.098 R)
• M21: 26,377,097 km (0.104 R)
• M22: 27,899,404 km (0.079 R)
• M23: 31,118,003 km (0.071 R)
• M24: 33,395,929 km (0.049 R)
• M25: 34,218,718 km (0.074 R)
• M26: 36,768,165 km (0.093 R)
• M27: 37,519,146 km (0.092 R)
• M28: 40,096,268 km (0.071 R)
• M29: 41,968,935 km (0.06 R)
• M30: 43,480,621 km (0.05 R)
• M31: 44,461,235 km (0.035 R)
• M32: 44,744,125 km (0.102 R)
• M33: 47,491,490 km (0.068 R)
• M34: 48,831,288 km (0.089 R)
• M35: 49,738,300 km (0.097 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 319 - 13,916 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit