🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.5 AU - 0.82 AU

Year: 341 Days

Day: 41.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 11.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.4

Radius: 14.6

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.62 AU - 0.88 AU

Year: 413 Days

Day: 14 Hours

Environment

Temp: -139 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,142,597 km

• M1: 181,612 km (0.035 R)
• M2: 802,144 km (0.116 R)
• M3: 1,735,186 km (0.102 R)
• M4: 2,343,899 km (0.112 R)
• M5: 3,133,477 km (0.093 R)
• M6: 4,118,878 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.8

Radius: 13.5

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.87 AU - 1.01 AU

Year: 579 Days

Day: 8 Hours

Environment

Temp: -157 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,142,597 km

• M1: 169,046 km (0.114 R)
• M2: 621,878 km (0.084 R)
• M3: 1,071,719 km (0.062 R)
• M4: 1,823,000 km (0.099 R)
• M5: 2,372,772 km (0.076 R)
• M6: 3,447,333 km (0.104 R)
• M7: 3,951,927 km (0.096 R)
• M8: 5,173,244 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.2

Radius: 10.7

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.02 AU - 1.12 AU

Year: 704 Days

Day: 9.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 73,142,597 km

• M1: 133,890 km (0.112 R)
• M2: 539,300 km (0.053 R)
• M3: 1,026,541 km (0.106 R)
• M4: 2,208,364 km (0.069 R)
• M5: 2,952,464 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 570.4

Radius: 10.3

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.51 AU - 2.09 AU

Year: 1535 Days

Day: 14.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,142,597 km

• M1: 128,205 km (0.082 R)
• M2: 644,767 km (0.058 R)
• M3: 1,415,345 km (0.113 R)
• M4: 3,742,340 km (0.116 R)
• M5: 4,538,201 km (0.047 R)
• M6: 5,681,877 km (0.081 R)
• M7: 6,536,679 km (0.088 R)
• M8: 7,770,562 km (0.044 R)
• M9: 8,587,815 km (0.095 R)
• M10: 8,912,443 km (0.116 R)
• M11: 9,399,234 km (0.078 R)
• M12: 10,129,870 km (0.072 R)
• M13: 10,829,839 km (0.101 R)
• M14: 11,419,703 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.4

Radius: 10.3

Gravity: 7.7 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.82 AU - 2.9 AU

Year: 3075 Days

Day: 10.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,142,597 km

• M1: 128,654 km (0.112 R)
• M2: 644,617 km (0.11 R)
• M3: 1,211,743 km (0.08 R)
• M4: 1,715,738 km (0.058 R)
• M5: 2,103,795 km (0.118 R)
• M6: 3,385,699 km (0.11 R)
• M7: 5,279,907 km (0.114 R)
• M8: 5,778,966 km (0.052 R)
• M9: 11,615,227 km (0.108 R)
• M10: 14,882,295 km (0.103 R)
• M11: 19,260,875 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 532.9

Radius: 3.9

Gravity: 35.04 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.67 AU - 7.61 AU

Year: 12131 Days

Day: 18.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,142,597 km

• M1: 48,470 km (0.076 R)
• M2: 171,738 km (0.101 R)
• M3: 303,384 km (0.046 R)
• M4: 449,242 km (0.055 R)
• M5: 1,101,639 km (0.117 R)
• M6: 1,768,097 km (0.114 R)
• M7: 3,759,843 km (0.11 R)
• M8: 4,374,092 km (0.107 R)
• M9: 4,705,152 km (0.108 R)
• M10: 4,924,463 km (0.113 R)
• M11: 6,851,134 km (0.063 R)
• M12: 8,113,141 km (0.054 R)
• M13: 8,382,866 km (0.092 R)
• M14: 10,389,123 km (0.053 R)
• M15: 13,180,320 km (0.066 R)
• M16: 13,428,054 km (0.117 R)
• M17: 16,576,491 km (0.105 R)
• M18: 17,230,683 km (0.109 R)
• M19: 17,676,335 km (0.081 R)
• M20: 20,512,860 km (0.052 R)
• M21: 21,351,356 km (0.12 R)
• M22: 23,186,324 km (0.115 R)
• M23: 24,840,726 km (0.101 R)
• M24: 25,504,791 km (0.057 R)
• M25: 31,139,395 km (0.109 R)
• M26: 33,149,392 km (0.111 R)
• M27: 36,445,332 km (0.117 R)
• M28: 37,302,229 km (0.095 R)
• M29: 38,549,427 km (0.092 R)
• M30: 40,602,508 km (0.101 R)
• M31: 48,802,117 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 247.8

Radius: 6.3

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 7.03 AU - 7.53 AU

Year: 12489 Days

Day: 17.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,142,597 km

• M1: 87,365 km (0.097 R)
• M2: 316,699 km (0.073 R)
• M3: 571,913 km (0.116 R)
• M4: 955,482 km (0.091 R)
• M5: 1,435,392 km (0.085 R)
• M6: 1,861,895 km (0.099 R)
• M7: 3,243,282 km (0.099 R)
• M8: 3,976,461 km (0.119 R)
• M9: 4,182,457 km (0.057 R)
• M10: 5,049,377 km (0.059 R)
• M11: 5,765,951 km (0.105 R)
• M12: 6,872,825 km (0.069 R)
• M13: 8,033,106 km (0.101 R)
• M14: 12,508,028 km (0.099 R)
• M15: 12,951,884 km (0.109 R)
• M16: 15,204,978 km (0.09 R)
• M17: 17,023,490 km (0.104 R)
• M18: 18,195,589 km (0.12 R)
• M19: 19,494,398 km (0.095 R)
• M20: 21,164,359 km (0.06 R)
• M21: 23,009,648 km (0.106 R)
• M22: 23,424,633 km (0.115 R)
• M23: 24,699,207 km (0.059 R)
• M24: 27,479,034 km (0.113 R)
• M25: 29,185,049 km (0.106 R)
• M26: 29,671,242 km (0.044 R)
• M27: 30,361,037 km (0.078 R)
• M28: 31,263,412 km (0.093 R)
• M29: 35,052,277 km (0.118 R)
• M30: 37,741,448 km (0.105 R)
• M31: 38,901,430 km (0.072 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560.1

Radius: 4.7

Gravity: 25.36 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 7.37 AU - 9.33 AU

Year: 15341 Days

Day: 21.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 73,142,597 km

• M1: 58,493 km (0.111 R)
• M2: 306,975 km (0.117 R)
• M3: 564,134 km (0.107 R)
• M4: 913,145 km (0.096 R)
• M5: 1,069,475 km (0.091 R)
• M6: 1,955,843 km (0.12 R)
• M7: 2,103,196 km (0.106 R)
• M8: 2,504,268 km (0.094 R)
• M9: 2,656,260 km (0.1 R)
• M10: 2,837,423 km (0.091 R)
• M11: 3,927,991 km (0.087 R)
• M12: 4,346,417 km (0.114 R)
• M13: 5,378,343 km (0.113 R)
• M14: 5,595,409 km (0.089 R)
• M15: 5,970,152 km (0.065 R)
• M16: 6,321,707 km (0.052 R)
• M17: 6,522,916 km (0.108 R)
• M18: 7,775,050 km (0.078 R)
• M19: 8,337,239 km (0.111 R)
• M20: 9,914,300 km (0.087 R)
• M21: 11,861,166 km (0.114 R)
• M22: 12,541,837 km (0.1 R)
• M23: 13,379,585 km (0.097 R)
• M24: 13,845,732 km (0.108 R)
• M25: 14,810,488 km (0.078 R)
• M26: 16,950,037 km (0.087 R)
• M27: 17,104,721 km (0.114 R)
• M28: 20,664,103 km (0.062 R)
• M29: 24,886,204 km (0.082 R)
• M30: 26,620,044 km (0.082 R)
• M31: 28,215,505 km (0.114 R)
• M32: 35,995,641 km (0.038 R)
• M33: 37,943,705 km (0.104 R)
• M34: 40,648,733 km (0.089 R)
• M35: 45,986,984 km (0.108 R)
• M36: 52,920,546 km (0.116 R)
• M37: 53,583,414 km (0.051 R)
• M38: 55,775,921 km (0.047 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 451.1

Radius: 3.8

Gravity: 31.24 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 8.41 AU - 13.61 AU

Year: 23228 Days

Day: 18.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 73,142,597 km

• M1: 47,273 km (0.1 R)
• M2: 439,070 km (0.045 R)
• M3: 564,582 km (0.119 R)
• M4: 815,009 km (0.081 R)
• M5: 1,109,119 km (0.059 R)
• M6: 1,361,789 km (0.099 R)
• M7: 1,518,269 km (0.12 R)
• M8: 2,020,768 km (0.088 R)
• M9: 2,141,643 km (0.059 R)
• M10: 2,770,702 km (0.111 R)
• M11: 3,345,158 km (0.083 R)
• M12: 5,085,131 km (0.075 R)
• M13: 5,233,981 km (0.098 R)
• M14: 5,899,542 km (0.12 R)
• M15: 6,797,278 km (0.093 R)
• M16: 7,115,772 km (0.115 R)
• M17: 7,636,223 km (0.057 R)
• M18: 10,031,435 km (0.065 R)
• M19: 14,161,982 km (0.111 R)
• M20: 14,382,938 km (0.114 R)
• M21: 17,467,945 km (0.063 R)
• M22: 18,151,009 km (0.1 R)
• M23: 20,871,446 km (0.06 R)
• M24: 22,828,635 km (0.053 R)
• M25: 27,329,885 km (0.1 R)
• M26: 29,667,203 km (0.063 R)
• M27: 35,677,147 km (0.118 R)
• M28: 37,192,125 km (0.061 R)
• M29: 37,894,637 km (0.103 R)
• M30: 38,606,124 km (0.064 R)
• M31: 45,573,645 km (0.083 R)
• M32: 47,519,913 km (0.102 R)
• M33: 48,180,687 km (0.095 R)
• M34: 50,029,717 km (0.105 R)
• M35: 56,042,803 km (0.109 R)
• M36: 70,328,801 km (0.06 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: 328 - 16,462 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit