🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.5 AU - 0.64 AU

Year: 282 Days

Day: 33.3 Hours

Environment

Temp: -117 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,479,648 km

• M1: 81,381 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.9

Radius: 12.5

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.86 AU - 1.16 AU

Year: 666 Days

Day: 8.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,479,648 km

• M1: 155,432 km (0.067 R)
• M2: 626,366 km (0.112 R)
• M3: 1,062,145 km (0.084 R)
• M4: 1,495,979 km (0.112 R)
• M5: 1,966,913 km (0.075 R)
• M6: 2,418,698 km (0.026 R)
• M7: 2,891,876 km (0.069 R)
• M8: 4,242,296 km (0.11 R)
• M9: 4,970,688 km (0.094 R)
• M10: 5,495,328 km (0.098 R)
• M11: 6,720,086 km (0.084 R)
• M12: 7,204,035 km (0.047 R)
• M13: 7,593,887 km (0.11 R)
• M14: 8,192,727 km (0.101 R)
• M15: 8,668,897 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.9

Radius: 8.4

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.98 AU - 1.22 AU

Year: 757 Days

Day: 11.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,479,648 km

• M1: 105,915 km (0.08 R)
• M2: 635,492 km (0.083 R)
• M3: 1,054,067 km (0.066 R)
• M4: 1,363,136 km (0.107 R)
• M5: 1,795,474 km (0.087 R)
• M6: 3,026,664 km (0.075 R)
• M7: 3,482,190 km (0.117 R)
• M8: 4,411,192 km (0.079 R)
• M9: 4,729,237 km (0.092 R)
• M10: 5,723,016 km (0.11 R)
• M11: 6,010,244 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.9

Radius: 11

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.7 AU - 3.6 AU

Year: 3668 Days

Day: 12.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,479,648 km

• M1: 136,732 km (0.109 R)
• M2: 608,863 km (0.116 R)
• M3: 1,175,690 km (0.109 R)
• M4: 1,664,276 km (0.058 R)
• M5: 2,025,406 km (0.025 R)
• M6: 2,720,587 km (0.086 R)
• M7: 3,332,442 km (0.065 R)
• M8: 3,776,897 km (0.106 R)
• M9: 4,539,847 km (0.072 R)
• M10: 4,993,427 km (0.107 R)
• M11: 5,477,077 km (0.096 R)
• M12: 5,834,167 km (0.115 R)
• M13: 6,179,589 km (0.087 R)
• M14: 6,623,595 km (0.11 R)
• M15: 7,329,548 km (0.082 R)
• M16: 8,448,241 km (0.049 R)
• M17: 8,926,355 km (0.098 R)
• M18: 13,289,527 km (0.102 R)
• M19: 16,109,746 km (0.044 R)
• M20: 17,825,484 km (0.108 R)
• M21: 18,272,782 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.2

Radius: 14

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3 AU - 3.76 AU

Year: 4076 Days

Day: 6.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,479,648 km

• M1: 174,132 km (0.075 R)
• M2: 629,807 km (0.074 R)
• M3: 1,477,877 km (0.097 R)
• M4: 2,009,099 km (0.103 R)
• M5: 2,727,917 km (0.071 R)
• M6: 3,743,986 km (0.092 R)
• M7: 4,298,396 km (0.071 R)
• M8: 4,907,259 km (0.087 R)
• M9: 5,450,299 km (0.072 R)
• M10: 6,165,377 km (0.048 R)
• M11: 7,597,777 km (0.111 R)
• M12: 8,624,766 km (0.105 R)
• M13: 9,597,601 km (0.114 R)
• M14: 10,185,670 km (0.092 R)
• M15: 10,642,393 km (0.094 R)
• M16: 11,152,671 km (0.073 R)
• M17: 13,179,872 km (0.07 R)
• M18: 14,375,458 km (0.064 R)
• M19: 14,951,110 km (0.114 R)
• M20: 18,509,146 km (0.116 R)
• M21: 19,306,204 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888

Radius: 13

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 3.24 AU - 4.1 AU

Year: 4612 Days

Day: 14 Hours

Environment

Temp: -215 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 44,479,648 km

• M1: 161,715 km (0.079 R)
• M2: 629,358 km (0.06 R)
• M3: 2,444,878 km (0.071 R)
• M4: 3,530,211 km (0.115 R)
• M5: 4,887,961 km (0.057 R)
• M6: 6,000,819 km (0.117 R)
• M7: 6,503,767 km (0.113 R)
• M8: 7,206,578 km (0.097 R)
• M9: 8,034,004 km (0.104 R)
• M10: 8,451,532 km (0.104 R)
• M11: 8,963,755 km (0.074 R)
• M12: 9,622,584 km (0.091 R)
• M13: 10,626,086 km (0.073 R)
• M14: 11,843,215 km (0.092 R)
• M15: 12,285,576 km (0.042 R)
• M16: 12,841,182 km (0.076 R)
• M17: 13,786,491 km (0.051 R)
• M18: 14,276,274 km (0.083 R)
• M19: 19,972,363 km (0.087 R)
• M20: 20,883,264 km (0.106 R)
• M21: 24,094,682 km (0.081 R)
• M22: 27,793,938 km (0.1 R)
• M23: 28,488,970 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.7

Radius: 14.4

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.47 AU - 3.89 AU

Year: 4631 Days

Day: 11.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,479,648 km

• M1: 179,966 km (0.106 R)
• M2: 1,051,972 km (0.067 R)
• M3: 1,731,745 km (0.076 R)
• M4: 2,583,555 km (0.106 R)
• M5: 4,439,616 km (0.106 R)
• M6: 5,566,537 km (0.104 R)
• M7: 6,067,839 km (0.113 R)
• M8: 7,961,599 km (0.112 R)
• M9: 9,006,839 km (0.079 R)
• M10: 10,182,379 km (0.089 R)
• M11: 11,680,602 km (0.115 R)
• M12: 13,419,527 km (0.042 R)
• M13: 14,325,492 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.6

Radius: 11.5

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.39 AU - 5.03 AU

Year: 5667 Days

Day: 9.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,479,648 km

• M1: 143,016 km (0.051 R)
• M2: 502,948 km (0.112 R)
• M3: 1,182,122 km (0.12 R)
• M4: 2,106,338 km (0.086 R)
• M5: 3,438,806 km (0.113 R)
• M6: 4,111,548 km (0.087 R)
• M7: 4,492,873 km (0.088 R)
• M8: 4,870,159 km (0.08 R)
• M9: 6,461,730 km (0.092 R)
• M10: 6,873,723 km (0.077 R)
• M11: 8,375,536 km (0.082 R)
• M12: 8,991,730 km (0.069 R)
• M13: 10,407,374 km (0.076 R)
• M14: 11,315,284 km (0.075 R)
• M15: 11,763,479 km (0.069 R)
• M16: 13,288,928 km (0.049 R)
• M17: 17,050,417 km (0.1 R)
• M18: 18,791,138 km (0.097 R)
• M19: 19,279,426 km (0.066 R)
• M20: 21,925,662 km (0.095 R)
• M21: 23,017,128 km (0.038 R)
• M22: 27,658,103 km (0.117 R)
• M23: 28,564,068 km (0.054 R)
• M24: 31,990,158 km (0.109 R)
• M25: 33,904,562 km (0.058 R)
• M26: 34,317,153 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 891

Radius: 7.8

Gravity: 14.64 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.09 AU - 7.95 AU

Year: 12202 Days

Day: 16.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 44,479,648 km

• M1: 96,939 km (0.076 R)
• M2: 369,806 km (0.077 R)
• M3: 723,455 km (0.102 R)
• M4: 1,133,353 km (0.096 R)
• M5: 1,378,544 km (0.045 R)
• M6: 1,659,639 km (0.117 R)
• M7: 2,676,456 km (0.115 R)
• M8: 3,914,527 km (0.111 R)
• M9: 5,282,750 km (0.112 R)
• M10: 7,597,926 km (0.104 R)
• M11: 9,078,197 km (0.111 R)
• M12: 11,260,232 km (0.057 R)
• M13: 13,769,736 km (0.088 R)
• M14: 15,660,354 km (0.074 R)
• M15: 15,954,463 km (0.119 R)
• M16: 16,705,893 km (0.041 R)
• M17: 17,167,852 km (0.09 R)
• M18: 17,559,349 km (0.107 R)
• M19: 19,522,223 km (0.108 R)
• M20: 20,121,213 km (0.119 R)
• M21: 22,546,793 km (0.103 R)
• M22: 24,563,222 km (0.056 R)
• M23: 24,860,773 km (0.054 R)
• M24: 26,488,547 km (0.104 R)
• M25: 32,032,046 km (0.098 R)
• M26: 33,712,628 km (0.079 R)
• M27: 35,199,033 km (0.09 R)
• M28: 36,599,568 km (0.089 R)
• M29: 40,194,105 km (0.097 R)
• M30: 40,884,649 km (0.107 R)
• M31: 41,864,515 km (0.074 R)
• M32: 43,725,962 km (0.108 R)
• M33: 49,324,662 km (0.072 R)
• M34: 50,275,356 km (0.093 R)
• M35: 50,755,266 km (0.056 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.9

Radius: 3.7

Gravity: 21.76 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 6.67 AU - 8.39 AU

Year: 13555 Days

Day: 22.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 44,479,648 km

• M1: 46,375 km (0.05 R)
• M2: 187,147 km (0.114 R)
• M3: 336,595 km (0.108 R)
• M4: 579,542 km (0.072 R)
• M5: 715,527 km (0.103 R)
• M6: 980,165 km (0.086 R)
• M7: 1,331,720 km (0.074 R)
• M8: 1,614,011 km (0.096 R)
• M9: 2,136,407 km (0.036 R)
• M10: 2,661,496 km (0.108 R)
• M11: 2,847,296 km (0.042 R)
• M12: 2,975,950 km (0.088 R)
• M13: 3,108,494 km (0.101 R)
• M14: 5,337,802 km (0.066 R)
• M15: 5,467,952 km (0.093 R)
• M16: 6,438,992 km (0.099 R)
• M17: 6,965,277 km (0.085 R)
• M18: 7,278,535 km (0.056 R)
• M19: 10,331,379 km (0.114 R)
• M20: 12,024,677 km (0.112 R)
• M21: 12,589,708 km (0.103 R)
• M22: 12,820,538 km (0.108 R)
• M23: 13,290,724 km (0.07 R)
• M24: 13,530,080 km (0.11 R)
• M25: 15,026,957 km (0.079 R)
• M26: 18,493,139 km (0.115 R)
• M27: 19,168,873 km (0.11 R)
• M28: 21,132,046 km (0.103 R)
• M29: 21,458,169 km (0.049 R)
• M30: 26,476,130 km (0.06 R)
• M31: 27,430,266 km (0.115 R)
• M32: 32,654,522 km (0.067 R)
• M33: 34,645,969 km (0.064 R)
• M34: 35,327,388 km (0.077 R)
• M35: 37,543,979 km (0.1 R)
• M36: 39,604,241 km (0.106 R)
• M37: 39,851,526 km (0.115 R)
• M38: 41,611,097 km (0.049 R)
• M39: 42,639,432 km (0.062 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: 286 - 17,499 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit