🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.49 AU - 0.67 AU

Year: 285 Days

Day: 19.3 Hours

Environment

Temp: -121 °C

Axial Tilt: 49.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.7

Radius: 8

Gravity: 9.53 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.72 AU - 0.76 AU

Year: 411 Days

Day: 11.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,690,471 km

• M1: 99,483 km (0.084 R)
• M2: 361,728 km (0.111 R)
• M3: 620,831 km (0.106 R)
• M4: 1,184,516 km (0.089 R)
• M5: 1,621,641 km (0.07 R)
• M6: 2,778,182 km (0.105 R)
• M7: 3,261,234 km (0.077 R)
• M8: 4,464,599 km (0.034 R)
• M9: 4,990,136 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245

Radius: 12.7

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.43 AU - 2.03 AU

Year: 1469 Days

Day: 6.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,690,471 km

• M1: 157,975 km (0.08 R)
• M2: 727,644 km (0.114 R)
• M3: 1,260,661 km (0.064 R)
• M4: 1,657,694 km (0.057 R)
• M5: 2,170,067 km (0.055 R)
• M6: 3,394,525 km (0.118 R)
• M7: 4,361,376 km (0.081 R)
• M8: 5,108,618 km (0.095 R)
• M9: 5,858,701 km (0.053 R)
• M10: 6,313,479 km (0.088 R)
• M11: 6,971,710 km (0.103 R)
• M12: 8,069,459 km (0.078 R)
• M13: 8,686,400 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.9

Radius: 11.9

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.07 AU - 2.37 AU

Year: 2136 Days

Day: 6.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 60,690,471 km

• M1: 147,952 km (0.048 R)
• M2: 614,548 km (0.087 R)
• M3: 1,053,468 km (0.098 R)
• M4: 2,605,397 km (0.066 R)
• M5: 4,097,336 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.6

Radius: 10.9

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.03 AU - 2.45 AU

Year: 2165 Days

Day: 5.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,690,471 km

• M1: 135,984 km (0.054 R)
• M2: 509,680 km (0.078 R)
• M3: 1,417,440 km (0.105 R)
• M4: 2,201,033 km (0.101 R)
• M5: 2,752,302 km (0.088 R)
• M6: 3,539,635 km (0.115 R)
• M7: 4,132,641 km (0.097 R)
• M8: 4,682,413 km (0.048 R)
• M9: 5,031,575 km (0.084 R)
• M10: 5,398,090 km (0.067 R)
• M11: 5,824,144 km (0.051 R)
• M12: 6,697,796 km (0.098 R)
• M13: 7,859,124 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.5

Radius: 13.7

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 3.02 AU - 3.94 AU

Year: 4192 Days

Day: 14.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,690,471 km

• M1: 176,675 km (0.115 R)
• M2: 610,808 km (0.074 R)
• M3: 2,497,088 km (0.078 R)
• M4: 4,062,779 km (0.098 R)
• M5: 4,592,804 km (0.032 R)
• M6: 5,144,072 km (0.106 R)
• M7: 6,095,814 km (0.027 R)
• M8: 8,073,947 km (0.076 R)
• M9: 9,396,691 km (0.109 R)
• M10: 12,698,017 km (0.078 R)
• M11: 13,788,735 km (0.066 R)
• M12: 14,482,869 km (0.057 R)
• M13: 15,356,670 km (0.112 R)
• M14: 16,429,586 km (0.062 R)
• M15: 17,380,281 km (0.074 R)
• M16: 18,904,833 km (0.119 R)
• M17: 20,200,051 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 905.9

Radius: 3.9

Gravity: 59.56 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.28 AU - 7.54 AU

Year: 10479 Days

Day: 17.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 60,690,471 km

• M1: 58,493 km (0.066 R)
• M2: 194,178 km (0.093 R)
• M3: 403,166 km (0.105 R)
• M4: 587,471 km (0.051 R)
• M5: 2,840,265 km (0.103 R)
• M6: 3,024,271 km (0.094 R)
• M7: 3,191,671 km (0.083 R)
• M8: 3,952,675 km (0.047 R)
• M9: 5,327,031 km (0.079 R)
• M10: 6,045,998 km (0.11 R)
• M11: 6,827,348 km (0.072 R)
• M12: 7,985,834 km (0.101 R)
• M13: 9,071,166 km (0.105 R)
• M14: 9,369,614 km (0.081 R)
• M15: 10,091,573 km (0.058 R)
• M16: 10,412,161 km (0.083 R)
• M17: 12,418,418 km (0.082 R)
• M18: 12,910,745 km (0.074 R)
• M19: 15,010,351 km (0.084 R)
• M20: 15,287,855 km (0.107 R)
• M21: 16,950,336 km (0.114 R)
• M22: 17,709,246 km (0.101 R)
• M23: 17,941,273 km (0.076 R)
• M24: 21,846,226 km (0.061 R)
• M25: 23,018,624 km (0.071 R)
• M26: 23,202,630 km (0.096 R)
• M27: 26,989,849 km (0.109 R)
• M28: 27,503,269 km (0.051 R)
• M29: 28,338,325 km (0.058 R)
• M30: 31,394,160 km (0.098 R)
• M31: 33,470,429 km (0.118 R)
• M32: 35,269,194 km (0.101 R)
• M33: 36,628,440 km (0.105 R)
• M34: 42,139,626 km (0.082 R)
• M35: 49,696,413 km (0.09 R)
• M36: 52,349,980 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.4

Radius: 3

Gravity: 33.38 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 5.54 AU - 8.26 AU

Year: 11703 Days

Day: 17.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,690,471 km

• M1: 46,974 km (0.112 R)
• M2: 182,061 km (0.071 R)
• M3: 390,450 km (0.105 R)
• M4: 739,313 km (0.097 R)
• M5: 1,639,443 km (0.076 R)
• M6: 1,754,783 km (0.091 R)
• M7: 2,219,584 km (0.064 R)
• M8: 3,294,744 km (0.115 R)
• M9: 5,951,003 km (0.036 R)
• M10: 7,402,402 km (0.061 R)
• M11: 8,677,724 km (0.112 R)
• M12: 11,287,758 km (0.11 R)
• M13: 12,243,987 km (0.09 R)
• M14: 14,134,904 km (0.107 R)
• M15: 15,755,349 km (0.061 R)
• M16: 17,495,321 km (0.106 R)
• M17: 22,724,964 km (0.109 R)
• M18: 25,557,899 km (0.066 R)
• M19: 26,278,362 km (0.046 R)
• M20: 31,397,152 km (0.043 R)
• M21: 32,536,789 km (0.091 R)
• M22: 32,641,807 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 839.8

Radius: 7.9

Gravity: 13.46 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 6.88 AU - 8.28 AU

Year: 13475 Days

Day: 22.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 60,690,471 km

• M1: 98,286 km (0.102 R)
• M2: 363,972 km (0.069 R)
• M3: 727,943 km (0.076 R)
• M4: 1,514,529 km (0.077 R)
• M5: 1,785,451 km (0.101 R)
• M6: 2,145,832 km (0.071 R)
• M7: 2,511,150 km (0.102 R)
• M8: 3,499,992 km (0.072 R)
• M9: 4,157,774 km (0.11 R)
• M10: 4,468,339 km (0.066 R)
• M11: 4,861,332 km (0.118 R)
• M12: 5,679,334 km (0.042 R)
• M13: 8,485,191 km (0.101 R)
• M14: 8,733,224 km (0.074 R)
• M15: 9,296,311 km (0.056 R)
• M16: 11,368,541 km (0.069 R)
• M17: 14,990,754 km (0.095 R)
• M18: 15,574,634 km (0.064 R)
• M19: 17,338,094 km (0.092 R)
• M20: 17,900,283 km (0.077 R)
• M21: 19,401,647 km (0.046 R)
• M22: 19,659,703 km (0.117 R)
• M23: 23,131,272 km (0.111 R)
• M24: 23,714,254 km (0.108 R)
• M25: 26,565,739 km (0.066 R)
• M26: 27,420,542 km (0.094 R)
• M27: 29,866,018 km (0.037 R)
• M28: 31,971,907 km (0.107 R)
• M29: 33,061,279 km (0.112 R)
• M30: 37,134,829 km (0.107 R)
• M31: 43,853,569 km (0.087 R)
• M32: 46,261,646 km (0.112 R)
• M33: 49,875,631 km (0.102 R)
• M34: 50,198,463 km (0.045 R)
• M35: 50,848,316 km (0.095 R)
• M36: 56,251,343 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 436.8

Radius: 3.2

Gravity: 42.66 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 8.81 AU - 9.47 AU

Year: 17842 Days

Day: 22.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 60,690,471 km

• M1: 45,029 km (0.109 R)
• M2: 317,297 km (0.118 R)
• M3: 489,484 km (0.107 R)
• M4: 593,455 km (0.118 R)
• M5: 749,186 km (0.091 R)
• M6: 1,081,443 km (0.092 R)
• M7: 1,829,283 km (0.094 R)
• M8: 2,160,492 km (0.073 R)
• M9: 2,402,691 km (0.085 R)
• M10: 2,508,756 km (0.047 R)
• M11: 3,013,350 km (0.101 R)
• M12: 3,238,196 km (0.117 R)
• M13: 3,500,889 km (0.108 R)
• M14: 4,630,204 km (0.116 R)
• M15: 4,963,657 km (0.033 R)
• M16: 5,241,610 km (0.112 R)
• M17: 6,377,058 km (0.072 R)
• M18: 7,045,013 km (0.107 R)
• M19: 7,850,896 km (0.116 R)
• M20: 8,469,783 km (0.075 R)
• M21: 9,171,845 km (0.116 R)
• M22: 11,154,017 km (0.099 R)
• M23: 11,510,060 km (0.102 R)
• M24: 13,537,261 km (0.087 R)
• M25: 13,942,222 km (0.098 R)
• M26: 17,795,564 km (0.068 R)
• M27: 18,775,730 km (0.079 R)
• M28: 19,791,349 km (0.101 R)
• M29: 21,111,551 km (0.036 R)
• M30: 22,961,628 km (0.107 R)
• M31: 23,248,257 km (0.07 R)
• M32: 24,517,445 km (0.072 R)
• M33: 25,729,338 km (0.117 R)
• M34: 28,053,789 km (0.035 R)
• M35: 28,381,110 km (0.055 R)
• M36: 28,490,914 km (0.069 R)
• M37: 29,603,623 km (0.115 R)
• M38: 30,056,606 km (0.094 R)
• M39: 34,970,297 km (0.108 R)
• M40: 35,349,528 km (0.107 R)
• M41: 39,566,692 km (0.107 R)
• M42: 44,106,987 km (0.079 R)
• M43: 48,042,010 km (0.094 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 185 - 19,735 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit