🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.01 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.55 AU - 2.47 AU

Year: 1068 Days

Day: 46.7 Hours

Environment

Temp: -68 °C

Axial Tilt: 41.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 106,032,888 km

• M1: 512,822 km (0.085 R)

Planet 2 - Terrestrial

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.11 AU - 4.29 AU

Year: 3226 Days

Day: 33.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.4

Radius: 11.2

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.79 AU - 6.15 AU

Year: 4152 Days

Day: 10 Hours

Environment

Temp: -134 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 106,032,888 km

• M1: 139,276 km (0.105 R)
• M2: 492,626 km (0.112 R)
• M3: 1,091,616 km (0.077 R)
• M4: 1,849,927 km (0.083 R)
• M5: 2,214,348 km (0.104 R)
• M6: 2,725,823 km (0.041 R)
• M7: 3,315,238 km (0.111 R)
• M8: 3,816,840 km (0.108 R)
• M9: 4,749,433 km (0.05 R)
• M10: 5,632,659 km (0.071 R)
• M11: 7,588,352 km (0.086 R)
• M12: 8,283,085 km (0.11 R)
• M13: 10,001,066 km (0.052 R)
• M14: 10,371,471 km (0.054 R)
• M15: 11,095,973 km (0.108 R)
• M16: 13,773,326 km (0.077 R)
• M17: 15,451,814 km (0.117 R)
• M18: 19,022,117 km (0.04 R)
• M19: 20,831,653 km (0.107 R)
• M20: 22,331,970 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.9

Radius: 13.6

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.48 AU - 5.46 AU

Year: 4152 Days

Day: 6.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 106,032,888 km

• M1: 169,195 km (0.119 R)
• M2: 889,958 km (0.09 R)
• M3: 1,315,264 km (0.049 R)
• M4: 2,321,161 km (0.061 R)
• M5: 3,144,547 km (0.097 R)
• M6: 3,625,355 km (0.092 R)
• M7: 4,501,998 km (0.06 R)
• M8: 5,835,215 km (0.048 R)
• M9: 7,328,949 km (0.03 R)
• M10: 8,863,075 km (0.068 R)
• M11: 9,974,588 km (0.06 R)
• M12: 15,560,123 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.8

Radius: 8.9

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.55 AU - 5.51 AU

Year: 4227 Days

Day: 14.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 106,032,888 km

• M1: 110,852 km (0.069 R)
• M2: 488,587 km (0.116 R)
• M3: 830,418 km (0.112 R)
• M4: 1,271,881 km (0.098 R)
• M5: 1,748,051 km (0.12 R)
• M6: 2,874,972 km (0.096 R)
• M7: 4,355,392 km (0.11 R)
• M8: 4,981,011 km (0.118 R)
• M9: 5,956,239 km (0.115 R)
• M10: 6,759,281 km (0.089 R)
• M11: 8,808,921 km (0.069 R)
• M12: 11,470,118 km (0.117 R)
• M13: 13,516,168 km (0.103 R)
• M14: 14,356,010 km (0.099 R)
• M15: 14,953,205 km (0.072 R)
• M16: 21,304,831 km (0.11 R)
• M17: 21,797,158 km (0.113 R)
• M18: 23,918,156 km (0.119 R)
• M19: 26,494,680 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.8

Radius: 11.7

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 10.59 AU - 10.71 AU

Year: 13024 Days

Day: 13.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 106,032,888 km

• M1: 157,676 km (0.084 R)
• M2: 648,208 km (0.096 R)
• M3: 1,259,913 km (0.057 R)
• M4: 1,650,214 km (0.048 R)
• M5: 4,256,359 km (0.118 R)
• M6: 4,787,730 km (0.11 R)
• M7: 5,796,768 km (0.074 R)
• M8: 6,984,425 km (0.118 R)
• M9: 8,375,237 km (0.12 R)
• M10: 11,110,933 km (0.053 R)
• M11: 11,758,093 km (0.077 R)
• M12: 12,871,102 km (0.082 R)
• M13: 14,394,008 km (0.106 R)
• M14: 15,594,531 km (0.099 R)
• M15: 17,014,065 km (0.101 R)
• M16: 21,427,352 km (0.098 R)
• M17: 35,114,659 km (0.077 R)
• M18: 40,358,514 km (0.118 R)
• M19: 41,048,609 km (0.031 R)
• M20: 45,504,531 km (0.116 R)
• M21: 45,952,128 km (0.07 R)
• M22: 49,011,703 km (0.074 R)
• M23: 49,482,039 km (0.1 R)
• M24: 52,859,360 km (0.097 R)
• M25: 58,472,422 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 379.2

Radius: 4.5

Gravity: 18.73 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 10.72 AU - 14.04 AU

Year: 16323 Days

Day: 16 Hours

Environment

Temp: -192 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 106,032,888 km

• M1: 55,950 km (0.054 R)
• M2: 353,051 km (0.108 R)
• M3: 532,419 km (0.095 R)
• M4: 676,781 km (0.106 R)
• M5: 949,198 km (0.117 R)
• M6: 1,152,801 km (0.077 R)
• M7: 1,371,663 km (0.038 R)
• M8: 2,142,092 km (0.048 R)
• M9: 2,372,921 km (0.114 R)
• M10: 3,190,773 km (0.074 R)
• M11: 3,703,744 km (0.066 R)
• M12: 4,859,238 km (0.109 R)
• M13: 5,361,438 km (0.099 R)
• M14: 9,475,230 km (0.09 R)
• M15: 9,731,192 km (0.11 R)
• M16: 10,310,584 km (0.103 R)
• M17: 11,364,801 km (0.078 R)
• M18: 17,652,399 km (0.094 R)
• M19: 18,040,007 km (0.068 R)
• M20: 18,354,163 km (0.026 R)
• M21: 20,827,464 km (0.091 R)
• M22: 23,051,087 km (0.085 R)
• M23: 24,940,209 km (0.112 R)
• M24: 27,340,357 km (0.097 R)
• M25: 27,963,582 km (0.111 R)
• M26: 28,596,231 km (0.045 R)
• M27: 28,916,072 km (0.059 R)
• M28: 32,478,147 km (0.063 R)
• M29: 32,826,261 km (0.08 R)
• M30: 33,294,353 km (0.082 R)
• M31: 33,530,119 km (0.054 R)
• M32: 34,004,942 km (0.095 R)
• M33: 34,968,053 km (0.093 R)
• M34: 49,496,101 km (0.1 R)
• M35: 49,649,439 km (0.074 R)
• M36: 54,563,131 km (0.03 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 896.4

Radius: 6

Gravity: 24.9 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 16.52 AU - 19.6 AU

Year: 28761 Days

Day: 21.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 106,032,888 km

• M1: 81,381 km (0.091 R)
• M2: 281,543 km (0.087 R)
• M3: 632,799 km (0.109 R)
• M4: 1,028,186 km (0.119 R)
• M5: 1,265,598 km (0.111 R)
• M6: 3,231,164 km (0.043 R)
• M7: 4,129,948 km (0.067 R)
• M8: 4,977,121 km (0.08 R)
• M9: 5,441,772 km (0.092 R)
• M10: 6,263,812 km (0.086 R)
• M11: 6,805,207 km (0.078 R)
• M12: 7,702,645 km (0.102 R)
• M13: 8,499,104 km (0.06 R)
• M14: 10,728,112 km (0.083 R)
• M15: 12,013,906 km (0.073 R)
• M16: 16,118,722 km (0.029 R)
• M17: 17,038,898 km (0.078 R)
• M18: 21,505,891 km (0.06 R)
• M19: 28,112,133 km (0.118 R)
• M20: 28,639,465 km (0.071 R)
• M21: 33,244,536 km (0.048 R)
• M22: 35,186,466 km (0.096 R)
• M23: 39,953,851 km (0.108 R)
• M24: 53,919,411 km (0.073 R)
• M25: 57,223,579 km (0.039 R)
• M26: 57,434,363 km (0.087 R)
• M27: 71,302,085 km (0.105 R)
• M28: 78,612,783 km (0.093 R)
• M29: 90,062,705 km (0.083 R)
• M30: 92,652,843 km (0.1 R)
• M31: 100,413,532 km (0.107 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: 292 - 11,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit