🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.59 AU - 0.61 AU

Year: 300 Days

Day: 23.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,059,683 km

• M1: 213,626 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.9

Radius: 10.3

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.62 AU - 0.98 AU

Year: 462 Days

Day: 12.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 86,059,683 km

• M1: 128,056 km (0.1 R)
• M2: 464,950 km (0.046 R)
• M3: 786,137 km (0.106 R)
• M4: 1,144,573 km (0.102 R)
• M5: 1,857,407 km (0.1 R)
• M6: 2,448,169 km (0.086 R)
• M7: 3,789,464 km (0.108 R)
• M8: 4,670,146 km (0.106 R)
• M9: 5,097,996 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.5

Radius: 14.7

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.33 AU - 3.17 AU

Year: 2945 Days

Day: 14.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,059,683 km

• M1: 182,958 km (0.06 R)
• M2: 716,125 km (0.113 R)
• M3: 1,529,489 km (0.102 R)
• M4: 2,063,703 km (0.041 R)
• M5: 2,571,737 km (0.098 R)
• M6: 3,465,883 km (0.1 R)
• M7: 3,926,047 km (0.093 R)
• M8: 5,186,857 km (0.076 R)
• M9: 6,195,297 km (0.096 R)
• M10: 7,117,418 km (0.094 R)
• M11: 7,932,427 km (0.111 R)
• M12: 9,452,940 km (0.119 R)
• M13: 10,205,268 km (0.106 R)
• M14: 13,248,986 km (0.107 R)
• M15: 13,904,524 km (0.101 R)
• M16: 15,484,427 km (0.038 R)
• M17: 17,017,057 km (0.088 R)
• M18: 17,624,125 km (0.078 R)
• M19: 19,175,754 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.5

Radius: 9.6

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.39 AU - 3.25 AU

Year: 3058 Days

Day: 14.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,059,683 km

• M1: 119,379 km (0.052 R)
• M2: 433,235 km (0.079 R)
• M3: 956,529 km (0.095 R)
• M4: 1,477,578 km (0.082 R)
• M5: 2,919,402 km (0.11 R)
• M6: 3,412,477 km (0.116 R)
• M7: 4,043,182 km (0.066 R)
• M8: 5,357,249 km (0.096 R)
• M9: 5,906,722 km (0.077 R)
• M10: 7,366,947 km (0.044 R)
• M11: 7,685,740 km (0.065 R)
• M12: 9,199,521 km (0.081 R)
• M13: 10,260,768 km (0.12 R)
• M14: 10,578,514 km (0.071 R)
• M15: 11,026,111 km (0.11 R)
• M16: 13,268,583 km (0.06 R)
• M17: 14,621,247 km (0.089 R)
• M18: 15,799,330 km (0.081 R)
• M19: 19,530,152 km (0.048 R)
• M20: 19,896,068 km (0.114 R)
• M21: 20,767,476 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.2

Radius: 14.6

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.38 AU - 3.38 AU

Year: 3156 Days

Day: 12.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 86,059,683 km

• M1: 181,612 km (0.117 R)
• M2: 910,602 km (0.103 R)
• M3: 1,369,718 km (0.065 R)
• M4: 2,068,340 km (0.111 R)
• M5: 2,525,212 km (0.085 R)
• M6: 3,174,766 km (0.119 R)
• M7: 3,628,796 km (0.106 R)
• M8: 4,191,732 km (0.111 R)
• M9: 4,959,319 km (0.063 R)
• M10: 7,438,156 km (0.111 R)
• M11: 8,143,061 km (0.084 R)
• M12: 10,082,148 km (0.112 R)
• M13: 11,031,646 km (0.118 R)
• M14: 11,506,470 km (0.098 R)
• M15: 12,221,548 km (0.088 R)
• M16: 12,824,277 km (0.116 R)
• M17: 16,417,469 km (0.104 R)
• M18: 16,923,558 km (0.105 R)
• M19: 18,204,864 km (0.108 R)
• M20: 19,238,585 km (0.12 R)
• M21: 20,118,969 km (0.09 R)
• M22: 21,224,048 km (0.08 R)
• M23: 21,892,601 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.7

Radius: 9.9

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.35 AU - 4.55 AU

Year: 5069 Days

Day: 13.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,059,683 km

• M1: 123,119 km (0.102 R)
• M2: 441,463 km (0.061 R)
• M3: 840,740 km (0.109 R)
• M4: 1,280,857 km (0.104 R)
• M5: 1,681,181 km (0.077 R)
• M6: 2,345,545 km (0.1 R)
• M7: 3,985,736 km (0.043 R)
• M8: 4,598,339 km (0.055 R)
• M9: 6,040,762 km (0.06 R)
• M10: 7,313,989 km (0.106 R)
• M11: 9,628,568 km (0.057 R)
• M12: 10,340,205 km (0.108 R)
• M13: 11,495,848 km (0.091 R)
• M14: 12,636,981 km (0.111 R)
• M15: 14,922,836 km (0.119 R)
• M16: 16,047,812 km (0.101 R)
• M17: 16,928,046 km (0.094 R)
• M18: 17,289,026 km (0.1 R)
• M19: 20,229,522 km (0.026 R)
• M20: 20,772,861 km (0.102 R)
• M21: 21,465,798 km (0.082 R)
• M22: 23,861,908 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 677.2

Radius: 6.1

Gravity: 18.2 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 7.03 AU - 7.31 AU

Year: 12396 Days

Day: 16.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 90.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 86,059,683 km

• M1: 75,846 km (0.082 R)
• M2: 284,834 km (0.116 R)
• M3: 600,187 km (0.066 R)
• M4: 799,152 km (0.064 R)
• M5: 1,309,879 km (0.114 R)
• M6: 2,296,327 km (0.105 R)
• M7: 2,621,852 km (0.085 R)
• M8: 2,931,520 km (0.084 R)
• M9: 5,225,005 km (0.056 R)
• M10: 5,502,060 km (0.097 R)
• M11: 7,332,390 km (0.115 R)
• M12: 7,591,942 km (0.11 R)
• M13: 8,788,875 km (0.11 R)
• M14: 9,584,885 km (0.049 R)
• M15: 10,756,835 km (0.088 R)
• M16: 13,253,773 km (0.104 R)
• M17: 15,257,487 km (0.086 R)
• M18: 16,478,056 km (0.118 R)
• M19: 16,999,105 km (0.099 R)
• M20: 18,869,228 km (0.065 R)
• M21: 19,770,555 km (0.076 R)
• M22: 21,394,291 km (0.117 R)
• M23: 22,646,275 km (0.088 R)
• M24: 24,711,175 km (0.109 R)
• M25: 25,002,143 km (0.116 R)
• M26: 27,412,763 km (0.098 R)
• M27: 30,749,992 km (0.085 R)
• M28: 34,468,995 km (0.112 R)
• M29: 40,727,572 km (0.119 R)
• M30: 42,784,841 km (0.098 R)
• M31: 51,234,877 km (0.086 R)
• M32: 54,937,574 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 891.5

Radius: 7.2

Gravity: 17.2 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 8.04 AU - 8.26 AU

Year: 15023 Days

Day: 21.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 86,059,683 km

• M1: 89,609 km (0.065 R)
• M2: 502,798 km (0.077 R)
• M3: 912,846 km (0.115 R)
• M4: 1,469,201 km (0.091 R)
• M5: 3,450,624 km (0.085 R)
• M6: 4,282,688 km (0.114 R)
• M7: 5,168,756 km (0.102 R)
• M8: 5,426,962 km (0.074 R)
• M9: 6,893,919 km (0.118 R)
• M10: 7,390,434 km (0.063 R)
• M11: 7,623,956 km (0.104 R)
• M12: 8,155,029 km (0.117 R)
• M13: 9,840,698 km (0.104 R)
• M14: 13,327,674 km (0.061 R)
• M15: 13,955,836 km (0.073 R)
• M16: 15,727,075 km (0.042 R)
• M17: 16,192,324 km (0.107 R)
• M18: 20,708,684 km (0.1 R)
• M19: 23,503,621 km (0.051 R)
• M20: 24,730,323 km (0.09 R)
• M21: 25,677,876 km (0.04 R)
• M22: 27,310,737 km (0.073 R)
• M23: 29,828,918 km (0.038 R)
• M24: 34,018,705 km (0.087 R)
• M25: 37,338,581 km (0.059 R)
• M26: 40,145,187 km (0.077 R)
• M27: 41,599,877 km (0.089 R)
• M28: 45,859,377 km (0.114 R)
• M29: 49,568,656 km (0.071 R)
• M30: 53,997,052 km (0.092 R)
• M31: 56,487,558 km (0.08 R)
• M32: 59,800,552 km (0.075 R)
• M33: 60,743,318 km (0.106 R)
• M34: 66,811,007 km (0.093 R)
• M35: 68,234,880 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 702.9

Radius: 5.3

Gravity: 25.02 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 9.73 AU - 12.39 AU

Year: 23749 Days

Day: 24.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 86,059,683 km

• M1: 78,688 km (0.095 R)
• M2: 392,395 km (0.078 R)
• M3: 559,047 km (0.111 R)
• M4: 1,225,207 km (0.107 R)
• M5: 1,612,515 km (0.059 R)
• M6: 1,854,266 km (0.077 R)
• M7: 2,627,687 km (0.115 R)
• M8: 3,416,067 km (0.092 R)
• M9: 3,978,555 km (0.066 R)
• M10: 4,821,839 km (0.082 R)
• M11: 5,050,125 km (0.097 R)
• M12: 5,906,423 km (0.086 R)
• M13: 6,855,472 km (0.11 R)
• M14: 9,998,374 km (0.116 R)
• M15: 11,339,369 km (0.104 R)
• M16: 19,298,275 km (0.117 R)
• M17: 19,489,012 km (0.107 R)
• M18: 19,874,227 km (0.103 R)
• M19: 29,309,664 km (0.051 R)
• M20: 30,714,238 km (0.097 R)
• M21: 30,974,239 km (0.064 R)
• M22: 31,630,974 km (0.101 R)
• M23: 33,794,608 km (0.097 R)
• M24: 35,338,159 km (0.075 R)
• M25: 41,505,480 km (0.085 R)
• M26: 46,446,997 km (0.099 R)
• M27: 50,310,063 km (0.098 R)
• M28: 53,438,005 km (0.094 R)
• M29: 53,814,244 km (0.103 R)
• M30: 59,269,629 km (0.12 R)
• M31: 67,465,947 km (0.118 R)
• M32: 68,125,973 km (0.103 R)
• M33: 70,357,225 km (0.042 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 536 - 13,119 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit