🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.53 AU - 0.57 AU

Year: 263 Days

Day: 23 Hours

Environment

Temp: -131 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,458,236 km

• M1: 326,871 km (0.099 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.57 AU - 0.61 AU

Year: 293 Days

Day: 21.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 1.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.8

Radius: 9.4

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.75 AU - 0.85 AU

Year: 462 Days

Day: 5.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,458,236 km

• M1: 116,836 km (0.118 R)
• M2: 411,693 km (0.101 R)
• M3: 743,651 km (0.084 R)
• M4: 1,038,658 km (0.109 R)
• M5: 1,587,832 km (0.106 R)
• M6: 2,145,682 km (0.086 R)
• M7: 2,775,041 km (0.088 R)
• M8: 3,227,873 km (0.108 R)
• M9: 5,465,259 km (0.057 R)
• M10: 5,761,313 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.4

Radius: 14.2

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.51 AU - 1.99 AU

Year: 1495 Days

Day: 6.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,458,236 km

• M1: 178,021 km (0.072 R)
• M2: 747,690 km (0.105 R)
• M3: 1,196,933 km (0.108 R)
• M4: 1,745,508 km (0.097 R)
• M5: 2,387,283 km (0.074 R)
• M6: 4,225,242 km (0.118 R)
• M7: 4,948,398 km (0.068 R)
• M8: 5,707,458 km (0.115 R)
• M9: 6,151,315 km (0.042 R)
• M10: 6,977,394 km (0.103 R)
• M11: 8,547,723 km (0.083 R)
• M12: 9,674,943 km (0.066 R)
• M13: 10,342,898 km (0.104 R)
• M14: 10,828,492 km (0.048 R)
• M15: 11,696,758 km (0.074 R)
• M16: 12,224,240 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.7

Radius: 12.5

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.44 AU - 3.64 AU

Year: 3422 Days

Day: 10.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,458,236 km

• M1: 155,432 km (0.11 R)
• M2: 607,367 km (0.107 R)
• M3: 1,081,892 km (0.047 R)
• M4: 1,605,484 km (0.096 R)
• M5: 2,223,772 km (0.116 R)
• M6: 3,729,475 km (0.079 R)
• M7: 4,389,650 km (0.102 R)
• M8: 5,390,161 km (0.119 R)
• M9: 7,103,356 km (0.094 R)
• M10: 9,078,048 km (0.112 R)
• M11: 10,484,567 km (0.063 R)
• M12: 10,998,735 km (0.084 R)
• M13: 12,500,248 km (0.073 R)
• M14: 12,981,206 km (0.106 R)
• M15: 13,524,396 km (0.094 R)
• M16: 16,357,630 km (0.111 R)
• M17: 18,432,402 km (0.035 R)
• M18: 20,411,881 km (0.101 R)
• M19: 23,314,679 km (0.103 R)
• M20: 23,823,910 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.7

Radius: 8.1

Gravity: 13.41 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.76 AU - 4.2 AU

Year: 4192 Days

Day: 9.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,458,236 km

• M1: 100,829 km (0.116 R)
• M2: 354,996 km (0.091 R)
• M3: 611,855 km (0.038 R)
• M4: 1,001,109 km (0.075 R)
• M5: 1,491,790 km (0.053 R)
• M6: 1,825,692 km (0.117 R)
• M7: 2,445,177 km (0.088 R)
• M8: 2,804,062 km (0.104 R)
• M9: 3,296,688 km (0.086 R)
• M10: 4,454,725 km (0.096 R)
• M11: 5,180,425 km (0.077 R)
• M12: 5,543,200 km (0.049 R)
• M13: 8,808,023 km (0.048 R)
• M14: 10,290,688 km (0.104 R)
• M15: 11,136,963 km (0.113 R)
• M16: 13,689,701 km (0.076 R)
• M17: 15,327,499 km (0.102 R)
• M18: 18,597,558 km (0.105 R)
• M19: 20,463,642 km (0.061 R)
• M20: 20,949,087 km (0.111 R)
• M21: 22,159,783 km (0.082 R)
• M22: 26,477,926 km (0.116 R)
• M23: 27,137,353 km (0.12 R)
• M24: 27,807,551 km (0.062 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.7

Radius: 13.2

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 5.64 AU - 5.68 AU

Year: 8694 Days

Day: 14.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,458,236 km

• M1: 164,258 km (0.044 R)
• M2: 588,668 km (0.11 R)
• M3: 1,011,431 km (0.108 R)
• M4: 1,649,466 km (0.112 R)
• M5: 2,283,163 km (0.086 R)
• M6: 2,952,015 km (0.097 R)
• M7: 3,400,360 km (0.095 R)
• M8: 4,969,791 km (0.061 R)
• M9: 6,371,673 km (0.108 R)
• M10: 7,392,229 km (0.093 R)
• M11: 8,434,777 km (0.115 R)
• M12: 8,948,047 km (0.069 R)
• M13: 10,274,980 km (0.099 R)
• M14: 11,676,862 km (0.106 R)
• M15: 12,533,310 km (0.086 R)
• M16: 15,671,723 km (0.077 R)
• M17: 17,184,158 km (0.033 R)
• M18: 19,008,803 km (0.096 R)
• M19: 20,345,460 km (0.095 R)
• M20: 21,114,692 km (0.097 R)
• M21: 21,585,477 km (0.085 R)
• M22: 22,793,180 km (0.031 R)
• M23: 23,875,820 km (0.099 R)
• M24: 24,645,202 km (0.101 R)
• M25: 25,874,897 km (0.085 R)
• M26: 31,816,625 km (0.117 R)
• M27: 33,274,007 km (0.107 R)
• M28: 36,658,958 km (0.074 R)
• M29: 39,078,405 km (0.087 R)
• M30: 39,551,134 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 95.7

Radius: 7.5

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 4.9 AU - 7.8 AU

Year: 10332 Days

Day: 21.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,458,236 km

• M1: 101,278 km (0.066 R)
• M2: 377,884 km (0.108 R)
• M3: 619,934 km (0.044 R)
• M4: 1,020,108 km (0.108 R)
• M5: 1,396,945 km (0.089 R)
• M6: 1,738,477 km (0.077 R)
• M7: 2,177,846 km (0.09 R)
• M8: 2,946,928 km (0.077 R)
• M9: 3,758,048 km (0.106 R)
• M10: 4,037,048 km (0.12 R)
• M11: 4,446,198 km (0.037 R)
• M12: 4,808,076 km (0.114 R)
• M13: 6,577,818 km (0.054 R)
• M14: 10,272,886 km (0.105 R)
• M15: 10,906,283 km (0.105 R)
• M16: 13,157,582 km (0.099 R)
• M17: 16,484,489 km (0.104 R)
• M18: 17,469,890 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 617.9

Radius: 4.5

Gravity: 30.51 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 7.38 AU - 8.5 AU

Year: 14446 Days

Day: 24.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,458,236 km

• M1: 55,950 km (0.082 R)
• M2: 236,215 km (0.03 R)
• M3: 412,441 km (0.093 R)
• M4: 803,939 km (0.066 R)
• M5: 1,468,453 km (0.094 R)
• M6: 1,652,458 km (0.064 R)
• M7: 2,547,951 km (0.074 R)
• M8: 2,746,318 km (0.041 R)
• M9: 3,456,608 km (0.102 R)
• M10: 3,644,952 km (0.084 R)
• M11: 3,811,903 km (0.076 R)
• M12: 4,012,963 km (0.1 R)
• M13: 5,480,069 km (0.109 R)
• M14: 6,636,012 km (0.08 R)
• M15: 7,580,872 km (0.108 R)
• M16: 8,132,290 km (0.109 R)
• M17: 11,296,883 km (0.105 R)
• M18: 13,084,877 km (0.05 R)
• M19: 15,922,300 km (0.08 R)
• M20: 16,219,252 km (0.025 R)
• M21: 19,734,652 km (0.081 R)
• M22: 20,336,933 km (0.099 R)
• M23: 20,511,364 km (0.085 R)
• M24: 25,604,274 km (0.034 R)
• M25: 26,423,921 km (0.06 R)
• M26: 26,631,563 km (0.101 R)
• M27: 28,115,424 km (0.09 R)
• M28: 30,103,131 km (0.038 R)
• M29: 38,992,236 km (0.08 R)
• M30: 40,350,286 km (0.068 R)
• M31: 45,203,540 km (0.074 R)
• M32: 58,477,658 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 763.2

Radius: 4.9

Gravity: 31.79 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 7.86 AU - 10.26 AU

Year: 17608 Days

Day: 21.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 72,458,236 km

• M1: 61,335 km (0.116 R)
• M2: 251,175 km (0.118 R)
• M3: 657,632 km (0.101 R)
• M4: 842,386 km (0.082 R)
• M5: 1,377,946 km (0.103 R)
• M6: 1,616,405 km (0.102 R)
• M7: 2,155,705 km (0.104 R)
• M8: 2,956,952 km (0.087 R)
• M9: 3,355,031 km (0.099 R)
• M10: 4,322,481 km (0.037 R)
• M11: 4,694,381 km (0.075 R)
• M12: 5,124,026 km (0.055 R)
• M13: 7,434,416 km (0.073 R)
• M14: 8,320,334 km (0.062 R)
• M15: 9,949,754 km (0.094 R)
• M16: 10,778,377 km (0.104 R)
• M17: 12,304,275 km (0.1 R)
• M18: 13,327,824 km (0.047 R)
• M19: 14,113,512 km (0.117 R)
• M20: 16,092,991 km (0.083 R)
• M21: 23,432,861 km (0.104 R)
• M22: 26,524,002 km (0.084 R)
• M23: 32,855,881 km (0.042 R)
• M24: 35,350,575 km (0.097 R)
• M25: 39,832,677 km (0.092 R)
• M26: 42,058,095 km (0.114 R)
• M27: 44,208,864 km (0.111 R)
• M28: 50,073,549 km (0.072 R)
• M29: 50,243,492 km (0.098 R)
• M30: 54,797,550 km (0.072 R)
• M31: 55,339,992 km (0.104 R)
• M32: 59,619,090 km (0.114 R)
• M33: 67,576,799 km (0.09 R)
• M34: 68,409,461 km (0.062 R)
• M35: 70,948,436 km (0.109 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: 421 - 13,674 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit