🌌 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: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.44 AU - 0.64 AU

Year: 256 Days

Day: 27.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716

Radius: 9.6

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.74 AU - 1.06 AU

Year: 551 Days

Day: 13.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 71,216,389 km

• M1: 119,379 km (0.103 R)
• M2: 439,818 km (0.073 R)
• M3: 861,684 km (0.072 R)
• M4: 1,210,097 km (0.099 R)
• M5: 1,527,544 km (0.111 R)
• M6: 1,876,256 km (0.089 R)
• M7: 2,577,721 km (0.085 R)
• M8: 2,914,915 km (0.062 R)
• M9: 3,419,209 km (0.1 R)
• M10: 3,719,452 km (0.098 R)
• M11: 4,525,336 km (0.032 R)
• M12: 4,855,947 km (0.116 R)
• M13: 5,304,890 km (0.109 R)
• M14: 6,002,315 km (0.107 R)
• M15: 6,402,340 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.4

Radius: 12.9

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.95 AU - 2.01 AU

Year: 1799 Days

Day: 9.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,216,389 km

• M1: 160,519 km (0.064 R)
• M2: 687,701 km (0.081 R)
• M3: 1,366,128 km (0.067 R)
• M4: 2,231,402 km (0.12 R)
• M5: 3,520,487 km (0.071 R)
• M6: 4,687,350 km (0.051 R)
• M7: 6,536,230 km (0.095 R)
• M8: 7,363,207 km (0.116 R)
• M9: 8,352,348 km (0.052 R)
• M10: 10,630,873 km (0.068 R)
• M11: 12,053,400 km (0.11 R)
• M12: 15,844,808 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.7

Radius: 14.2

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.11 AU - 2.37 AU

Year: 2165 Days

Day: 10.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,216,389 km

• M1: 176,525 km (0.107 R)
• M2: 657,183 km (0.083 R)
• M3: 1,390,363 km (0.098 R)
• M4: 2,505,316 km (0.097 R)
• M5: 3,706,736 km (0.118 R)
• M6: 5,263,152 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.3

Radius: 8.3

Gravity: 11.24 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.32 AU - 6.96 AU

Year: 8648 Days

Day: 7 Hours

Environment

Temp: -217 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 71,216,389 km

• M1: 112,946 km (0.106 R)
• M2: 459,565 km (0.097 R)
• M3: 760,107 km (0.106 R)
• M4: 1,053,917 km (0.039 R)
• M5: 2,623,947 km (0.104 R)
• M6: 3,501,637 km (0.047 R)
• M7: 4,334,897 km (0.088 R)
• M8: 5,073,163 km (0.095 R)
• M9: 5,721,969 km (0.091 R)
• M10: 6,208,312 km (0.119 R)
• M11: 6,684,332 km (0.113 R)
• M12: 7,027,958 km (0.086 R)
• M13: 7,667,938 km (0.093 R)
• M14: 8,259,298 km (0.095 R)
• M15: 8,521,992 km (0.113 R)
• M16: 10,117,154 km (0.105 R)
• M17: 10,673,359 km (0.117 R)
• M18: 11,681,948 km (0.11 R)
• M19: 14,010,738 km (0.054 R)
• M20: 18,205,762 km (0.063 R)
• M21: 25,680,569 km (0.097 R)
• M22: 32,522,876 km (0.066 R)
• M23: 32,849,897 km (0.108 R)
• M24: 35,086,984 km (0.12 R)
• M25: 36,009,554 km (0.066 R)
• M26: 37,304,473 km (0.101 R)
• M27: 40,236,890 km (0.09 R)
• M28: 42,404,713 km (0.077 R)
• M29: 43,715,639 km (0.063 R)
• M30: 44,918,257 km (0.067 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 692.8

Radius: 5.4

Gravity: 23.76 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 6.58 AU - 6.84 AU

Year: 11223 Days

Day: 17.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 71,216,389 km

• M1: 67,917 km (0.083 R)
• M2: 300,243 km (0.082 R)
• M3: 482,304 km (0.063 R)
• M4: 698,472 km (0.111 R)
• M5: 1,319,752 km (0.106 R)
• M6: 1,689,110 km (0.098 R)
• M7: 1,915,152 km (0.064 R)
• M8: 3,028,459 km (0.105 R)
• M9: 3,438,357 km (0.099 R)
• M10: 3,803,077 km (0.059 R)
• M11: 4,078,936 km (0.104 R)
• M12: 5,558,758 km (0.116 R)
• M13: 6,631,973 km (0.058 R)
• M14: 8,147,998 km (0.038 R)
• M15: 8,421,463 km (0.111 R)
• M16: 9,426,760 km (0.1 R)
• M17: 9,677,337 km (0.083 R)
• M18: 10,087,684 km (0.086 R)
• M19: 11,220,139 km (0.111 R)
• M20: 11,788,013 km (0.045 R)
• M21: 13,606,974 km (0.025 R)
• M22: 14,583,100 km (0.06 R)
• M23: 20,588,108 km (0.039 R)
• M24: 23,943,139 km (0.088 R)
• M25: 26,537,017 km (0.076 R)
• M26: 28,679,408 km (0.098 R)
• M27: 30,170,001 km (0.047 R)
• M28: 31,711,607 km (0.097 R)
• M29: 37,270,215 km (0.107 R)
• M30: 37,520,193 km (0.103 R)
• M31: 38,531,325 km (0.107 R)
• M32: 39,430,708 km (0.092 R)
• M33: 41,807,818 km (0.111 R)
• M34: 43,444,568 km (0.067 R)
• M35: 48,461,482 km (0.111 R)
• M36: 49,811,154 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 254.6

Radius: 5.7

Gravity: 7.84 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 7.36 AU - 8.68 AU

Year: 14665 Days

Day: 17.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 138.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,216,389 km

• M1: 70,909 km (0.114 R)
• M2: 252,820 km (0.111 R)
• M3: 464,801 km (0.074 R)
• M4: 833,559 km (0.042 R)
• M5: 2,041,113 km (0.101 R)
• M6: 2,284,210 km (0.05 R)
• M7: 2,625,143 km (0.078 R)
• M8: 3,854,240 km (0.074 R)
• M9: 4,145,058 km (0.116 R)
• M10: 4,830,814 km (0.103 R)
• M11: 5,232,335 km (0.11 R)
• M12: 6,279,819 km (0.081 R)
• M13: 7,541,079 km (0.036 R)
• M14: 8,038,941 km (0.097 R)
• M15: 19,799,129 km (0.082 R)
• M16: 21,802,543 km (0.119 R)
• M17: 30,856,206 km (0.096 R)
• M18: 35,108,227 km (0.096 R)
• M19: 37,196,015 km (0.109 R)
• M20: 38,390,853 km (0.1 R)
• M21: 41,109,345 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 713.2

Radius: 7.9

Gravity: 11.43 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 7.17 AU - 10.45 AU

Year: 16884 Days

Day: 24.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 77.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 71,216,389 km

• M1: 98,435 km (0.101 R)
• M2: 460,612 km (0.111 R)
• M3: 1,846,337 km (0.07 R)
• M4: 2,684,384 km (0.081 R)
• M5: 4,533,713 km (0.099 R)
• M6: 5,122,081 km (0.051 R)
• M7: 6,283,260 km (0.12 R)
• M8: 7,014,345 km (0.114 R)
• M9: 7,753,209 km (0.104 R)
• M10: 8,542,786 km (0.081 R)
• M11: 10,051,930 km (0.103 R)
• M12: 12,439,063 km (0.097 R)
• M13: 15,711,666 km (0.083 R)
• M14: 17,380,281 km (0.068 R)
• M15: 18,728,457 km (0.109 R)
• M16: 18,988,907 km (0.076 R)
• M17: 20,510,167 km (0.094 R)
• M18: 22,014,673 km (0.101 R)
• M19: 22,892,513 km (0.054 R)
• M20: 23,793,392 km (0.103 R)
• M21: 27,188,815 km (0.087 R)
• M22: 29,117,730 km (0.087 R)
• M23: 30,773,329 km (0.044 R)
• M24: 31,501,871 km (0.034 R)
• M25: 33,373,041 km (0.033 R)
• M26: 37,335,589 km (0.103 R)
• M27: 39,429,810 km (0.109 R)
• M28: 40,288,951 km (0.097 R)
• M29: 51,593,164 km (0.075 R)
• M30: 56,324,795 km (0.072 R)
• M31: 59,260,953 km (0.118 R)
• M32: 60,577,115 km (0.05 R)
• M33: 67,654,590 km (0.053 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20.4

Radius: 3.6

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 9.97 AU - 12.15 AU

Year: 23749 Days

Day: 18.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,216,389 km

• M1: 44,879 km (0.113 R)
• M2: 442,660 km (0.089 R)
• M3: 688,749 km (0.056 R)
• M4: 1,129,015 km (0.08 R)
• M5: 1,328,579 km (0.074 R)
• M6: 1,721,871 km (0.085 R)
• M7: 1,945,520 km (0.03 R)
• M8: 2,203,128 km (0.065 R)
• M9: 3,075,583 km (0.098 R)
• M10: 3,931,133 km (0.108 R)
• M11: 4,087,762 km (0.048 R)
• M12: 8,164,753 km (0.057 R)
• M13: 9,776,670 km (0.11 R)
• M14: 9,899,340 km (0.085 R)
• M15: 12,051,455 km (0.063 R)
• M16: 13,012,771 km (0.099 R)
• M17: 18,595,015 km (0.088 R)
• M18: 19,679,600 km (0.088 R)
• M19: 24,440,851 km (0.097 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 384.6

Radius: 5.1

Gravity: 14.79 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 11.03 AU - 11.35 AU

Year: 24169 Days

Day: 16.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 71,216,389 km

• M1: 64,028 km (0.117 R)
• M2: 258,655 km (0.032 R)
• M3: 574,905 km (0.071 R)
• M4: 963,410 km (0.083 R)
• M5: 1,448,407 km (0.089 R)
• M6: 1,642,136 km (0.103 R)
• M7: 2,416,903 km (0.117 R)
• M8: 2,985,226 km (0.066 R)
• M9: 3,580,625 km (0.096 R)
• M10: 4,092,399 km (0.07 R)
• M11: 4,685,854 km (0.106 R)
• M12: 5,642,084 km (0.118 R)
• M13: 7,497,995 km (0.086 R)
• M14: 8,281,738 km (0.101 R)
• M15: 8,641,222 km (0.053 R)
• M16: 9,446,507 km (0.031 R)
• M17: 10,898,055 km (0.032 R)
• M18: 11,645,147 km (0.085 R)
• M19: 11,901,558 km (0.042 R)
• M20: 13,309,872 km (0.11 R)
• M21: 13,519,758 km (0.114 R)
• M22: 18,196,038 km (0.074 R)
• M23: 20,799,789 km (0.104 R)
• M24: 21,082,529 km (0.096 R)
• M25: 21,463,554 km (0.069 R)
• M26: 24,052,944 km (0.109 R)
• M27: 28,085,803 km (0.116 R)
• M28: 29,961,162 km (0.068 R)
• M29: 34,482,758 km (0.084 R)
• M30: 39,438,636 km (0.104 R)
• M31: 44,224,571 km (0.08 R)
• M32: 55,288,979 km (0.067 R)
• M33: 58,223,940 km (0.065 R)
• M34: 60,110,070 km (0.078 R)
• M35: 61,261,076 km (0.111 R)
• M36: 67,031,964 km (0.073 R)
• M37: 67,442,909 km (0.1 R)
• M38: 69,943,288 km (0.117 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 11,804 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit