🌌 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: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.43 AU - 0.65 AU

Year: 252 Days

Day: 41.7 Hours

Environment

Temp: -119 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 69,696,945 km

• M1: 93,349 km (0.105 R)
• M2: 553,213 km (0.084 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.51 AU - 0.59 AU

Year: 259 Days

Day: 31.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.2

Radius: 8.9

Gravity: 11 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.82 AU - 1.24 AU

Year: 665 Days

Day: 7.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,696,945 km

• M1: 110,702 km (0.045 R)
• M2: 391,498 km (0.071 R)
• M3: 742,753 km (0.089 R)
• M4: 1,046,587 km (0.106 R)
• M5: 1,548,488 km (0.102 R)
• M6: 1,909,318 km (0.059 R)
• M7: 2,697,250 km (0.11 R)
• M8: 3,236,849 km (0.055 R)
• M9: 3,630,591 km (0.082 R)
• M10: 3,935,471 km (0.066 R)
• M11: 5,095,603 km (0.087 R)
• M12: 5,385,972 km (0.115 R)
• M13: 5,999,922 km (0.089 R)
• M14: 6,282,961 km (0.079 R)
• M15: 6,638,555 km (0.105 R)
• M16: 7,551,850 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.9

Radius: 13.8

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.12 AU - 1.64 AU

Year: 1031 Days

Day: 8.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,696,945 km

• M1: 171,738 km (0.06 R)
• M2: 606,919 km (0.054 R)
• M3: 1,061,995 km (0.076 R)
• M4: 1,596,957 km (0.115 R)
• M5: 2,644,591 km (0.114 R)
• M6: 3,134,375 km (0.108 R)
• M7: 3,606,805 km (0.091 R)
• M8: 4,059,338 km (0.103 R)
• M9: 4,678,524 km (0.113 R)
• M10: 5,421,876 km (0.076 R)
• M11: 5,952,798 km (0.078 R)
• M12: 7,269,709 km (0.078 R)
• M13: 7,705,786 km (0.035 R)
• M14: 8,518,103 km (0.051 R)
• M15: 9,386,818 km (0.047 R)
• M16: 10,603,647 km (0.081 R)
• M17: 11,471,614 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.9

Radius: 11.6

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.8 AU - 5.7 AU

Year: 6582 Days

Day: 8 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 69,696,945 km

• M1: 275,110 km (0.079 R)
• M2: 823,985 km (0.111 R)
• M3: 1,190,799 km (0.104 R)
• M4: 1,567,187 km (0.107 R)
• M5: 2,055,026 km (0.12 R)
• M6: 2,606,743 km (0.076 R)
• M7: 3,007,964 km (0.082 R)
• M8: 3,494,905 km (0.09 R)
• M9: 4,415,232 km (0.073 R)
• M10: 5,520,760 km (0.088 R)
• M11: 6,221,177 km (0.092 R)
• M12: 6,732,054 km (0.076 R)
• M13: 10,550,091 km (0.093 R)
• M14: 12,565,473 km (0.065 R)
• M15: 12,942,909 km (0.064 R)
• M16: 13,948,505 km (0.112 R)
• M17: 14,411,810 km (0.109 R)
• M18: 15,926,339 km (0.103 R)
• M19: 16,884,513 km (0.106 R)
• M20: 21,638,883 km (0.081 R)
• M21: 27,307,595 km (0.103 R)
• M22: 29,240,549 km (0.105 R)
• M23: 29,713,877 km (0.097 R)
• M24: 30,968,554 km (0.094 R)
• M25: 32,157,857 km (0.119 R)
• M26: 32,865,455 km (0.103 R)
• M27: 33,686,897 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.5

Radius: 12.1

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 4.55 AU - 5.19 AU

Year: 6833 Days

Day: 10.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,696,945 km

• M1: 151,094 km (0.099 R)
• M2: 748,289 km (0.09 R)
• M3: 1,191,697 km (0.051 R)
• M4: 1,588,580 km (0.099 R)
• M5: 2,168,272 km (0.101 R)
• M6: 2,771,899 km (0.058 R)
• M7: 3,619,072 km (0.103 R)
• M8: 4,042,434 km (0.074 R)
• M9: 4,472,677 km (0.091 R)
• M10: 5,161,127 km (0.11 R)
• M11: 7,067,602 km (0.1 R)
• M12: 7,544,071 km (0.095 R)
• M13: 9,580,098 km (0.062 R)
• M14: 12,113,538 km (0.075 R)
• M15: 12,584,322 km (0.03 R)
• M16: 13,451,392 km (0.119 R)
• M17: 14,767,255 km (0.093 R)
• M18: 16,356,134 km (0.11 R)
• M19: 18,056,014 km (0.057 R)
• M20: 18,948,814 km (0.111 R)
• M21: 21,575,155 km (0.073 R)
• M22: 23,616,717 km (0.106 R)
• M23: 24,023,623 km (0.086 R)
• M24: 25,357,437 km (0.112 R)
• M25: 27,809,197 km (0.086 R)
• M26: 29,654,636 km (0.085 R)
• M27: 30,703,766 km (0.111 R)
• M28: 31,482,124 km (0.113 R)
• M29: 32,774,949 km (0.117 R)
• M30: 34,518,661 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.4

Radius: 14.2

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.95 AU - 5.97 AU

Year: 7024 Days

Day: 5 Hours

Environment

Temp: -211 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,696,945 km

• M1: 176,525 km (0.089 R)
• M2: 624,272 km (0.11 R)
• M3: 1,637,797 km (0.11 R)
• M4: 2,249,354 km (0.103 R)
• M5: 2,860,910 km (0.072 R)
• M6: 3,539,186 km (0.076 R)
• M7: 4,756,763 km (0.085 R)
• M8: 5,276,466 km (0.108 R)
• M9: 7,137,314 km (0.091 R)
• M10: 8,045,822 km (0.113 R)
• M11: 9,112,006 km (0.117 R)
• M12: 9,658,188 km (0.116 R)
• M13: 12,366,059 km (0.052 R)
• M14: 13,568,527 km (0.106 R)
• M15: 14,562,904 km (0.052 R)
• M16: 16,084,314 km (0.069 R)
• M17: 17,516,415 km (0.109 R)
• M18: 18,829,435 km (0.068 R)
• M19: 21,577,398 km (0.111 R)
• M20: 22,398,541 km (0.077 R)
• M21: 28,120,361 km (0.074 R)
• M22: 29,553,209 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.4

Radius: 4.4

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 5.38 AU - 7.02 AU

Year: 9816 Days

Day: 18.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,696,945 km

• M1: 54,753 km (0.078 R)
• M2: 517,758 km (0.111 R)
• M3: 803,191 km (0.039 R)
• M4: 981,811 km (0.12 R)
• M5: 1,195,586 km (0.057 R)
• M6: 1,332,767 km (0.102 R)
• M7: 1,832,724 km (0.093 R)
• M8: 5,135,396 km (0.073 R)
• M9: 7,687,685 km (0.034 R)
• M10: 8,663,811 km (0.066 R)
• M11: 11,176,906 km (0.105 R)
• M12: 12,041,581 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 928.7

Radius: 3.1

Gravity: 96.64 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 5.56 AU - 7.2 AU

Year: 10246 Days

Day: 22.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 69,696,945 km

• M1: 54,753 km (0.057 R)
• M2: 165,306 km (0.095 R)
• M3: 312,660 km (0.119 R)
• M4: 509,530 km (0.116 R)
• M5: 783,444 km (0.116 R)
• M6: 974,630 km (0.118 R)
• M7: 1,110,914 km (0.106 R)
• M8: 1,259,764 km (0.047 R)
• M9: 1,628,223 km (0.105 R)
• M10: 1,939,836 km (0.109 R)
• M11: 2,449,067 km (0.118 R)
• M12: 3,644,354 km (0.107 R)
• M13: 4,001,893 km (0.109 R)
• M14: 6,613,123 km (0.104 R)
• M15: 6,733,251 km (0.066 R)
• M16: 7,746,327 km (0.059 R)
• M17: 7,969,527 km (0.034 R)
• M18: 8,151,139 km (0.107 R)
• M19: 10,442,829 km (0.098 R)
• M20: 13,575,259 km (0.084 R)
• M21: 15,955,211 km (0.105 R)
• M22: 16,243,636 km (0.073 R)
• M23: 17,280,798 km (0.111 R)
• M24: 17,585,080 km (0.078 R)
• M25: 20,149,188 km (0.079 R)
• M26: 22,407,367 km (0.113 R)
• M27: 23,690,618 km (0.103 R)
• M28: 24,255,200 km (0.083 R)
• M29: 24,636,525 km (0.083 R)
• M30: 25,705,851 km (0.098 R)
• M31: 27,625,042 km (0.112 R)
• M32: 27,728,713 km (0.082 R)
• M33: 31,859,559 km (0.102 R)
• M34: 39,186,265 km (0.092 R)
• M35: 40,240,630 km (0.094 R)
• M36: 41,449,381 km (0.112 R)
• M37: 43,377,249 km (0.095 R)
• M38: 48,758,434 km (0.12 R)
• M39: 50,749,881 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 574.3

Radius: 3.2

Gravity: 56.08 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.46 AU - 10.9 AU

Year: 19149 Days

Day: 23.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 69,696,945 km

• M1: 40,242 km (0.106 R)
• M2: 166,353 km (0.118 R)
• M3: 330,462 km (0.042 R)
• M4: 525,089 km (0.104 R)
• M5: 771,476 km (0.085 R)
• M6: 1,426,117 km (0.116 R)
• M7: 1,568,982 km (0.09 R)
• M8: 1,774,081 km (0.075 R)
• M9: 3,026,365 km (0.098 R)
• M10: 3,182,545 km (0.116 R)
• M11: 4,171,836 km (0.029 R)
• M12: 4,565,129 km (0.098 R)
• M13: 5,054,463 km (0.11 R)
• M14: 6,303,007 km (0.114 R)
• M15: 7,986,582 km (0.061 R)
• M16: 9,609,868 km (0.027 R)
• M17: 10,004,657 km (0.086 R)
• M18: 10,410,217 km (0.054 R)
• M19: 10,826,548 km (0.053 R)
• M20: 10,947,423 km (0.095 R)
• M21: 12,470,329 km (0.109 R)
• M22: 16,006,673 km (0.112 R)
• M23: 16,242,589 km (0.107 R)
• M24: 19,257,883 km (0.117 R)
• M25: 21,942,268 km (0.1 R)
• M26: 22,823,399 km (0.104 R)
• M27: 23,829,894 km (0.04 R)
• M28: 27,249,103 km (0.071 R)
• M29: 35,437,492 km (0.115 R)
• M30: 35,838,115 km (0.117 R)
• M31: 36,921,502 km (0.117 R)
• M32: 41,031,704 km (0.116 R)
• M33: 42,969,146 km (0.092 R)
• M34: 45,909,193 km (0.112 R)
• M35: 47,671,157 km (0.054 R)
• M36: 48,486,764 km (0.098 R)
• M37: 55,170,199 km (0.036 R)
• M38: 57,895,872 km (0.113 R)
• M39: 58,080,775 km (0.049 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: 235 - 15,370 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit