🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

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: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.5 AU - 0.71 AU

Year: 300 Days

Day: 29.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 45.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.5

Radius: 11.5

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.85 AU - 1.29 AU

Year: 715 Days

Day: 14 Hours

Environment

Temp: -156 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,654,339 km

• M1: 143,165 km (0.077 R)
• M2: 592,258 km (0.095 R)
• M3: 952,490 km (0.058 R)
• M4: 1,313,170 km (0.12 R)
• M5: 1,692,251 km (0.105 R)
• M6: 2,459,688 km (0.107 R)
• M7: 3,102,809 km (0.111 R)
• M8: 3,749,820 km (0.116 R)
• M9: 4,755,567 km (0.037 R)
• M10: 5,531,830 km (0.045 R)
• M11: 5,897,148 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.7

Radius: 10

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.1 AU - 1.4 AU

Year: 902 Days

Day: 12.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,654,339 km

• M1: 151,094 km (0.098 R)
• M2: 463,005 km (0.112 R)
• M3: 1,206,208 km (0.088 R)
• M4: 2,110,527 km (0.084 R)
• M5: 3,582,420 km (0.115 R)
• M6: 4,366,911 km (0.067 R)
• M7: 4,689,145 km (0.06 R)
• M8: 5,451,346 km (0.092 R)
• M9: 6,084,893 km (0.118 R)
• M10: 6,429,417 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.4

Radius: 8.3

Gravity: 12.16 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.31 AU - 1.63 AU

Year: 1151 Days

Day: 11.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 79,654,339 km

• M1: 103,223 km (0.072 R)
• M2: 543,190 km (0.106 R)
• M3: 1,026,092 km (0.073 R)
• M4: 1,383,631 km (0.119 R)
• M5: 1,642,435 km (0.045 R)
• M6: 2,169,618 km (0.094 R)
• M7: 2,572,335 km (0.095 R)
• M8: 2,899,805 km (0.064 R)
• M9: 3,181,498 km (0.09 R)
• M10: 3,543,974 km (0.098 R)
• M11: 4,916,085 km (0.097 R)
• M12: 6,563,756 km (0.102 R)
• M13: 7,280,031 km (0.103 R)
• M14: 7,830,551 km (0.105 R)
• M15: 8,296,249 km (0.106 R)
• M16: 10,120,894 km (0.078 R)
• M17: 11,280,727 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.5

Radius: 13

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.1 AU - 4.94 AU

Year: 6205 Days

Day: 9.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 79,654,339 km

• M1: 161,715 km (0.072 R)
• M2: 622,327 km (0.094 R)
• M3: 2,345,096 km (0.088 R)
• M4: 2,827,101 km (0.115 R)
• M5: 3,975,563 km (0.086 R)
• M6: 4,666,855 km (0.03 R)
• M7: 5,096,949 km (0.117 R)
• M8: 6,062,603 km (0.089 R)
• M9: 9,290,626 km (0.086 R)
• M10: 9,905,174 km (0.109 R)
• M11: 10,437,743 km (0.095 R)
• M12: 11,755,251 km (0.105 R)
• M13: 13,782,302 km (0.088 R)
• M14: 15,792,748 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.5

Radius: 11

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 5.3 AU - 6.26 AU

Year: 8972 Days

Day: 10.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 79,654,339 km

• M1: 136,882 km (0.107 R)
• M2: 713,133 km (0.066 R)
• M3: 1,307,336 km (0.115 R)
• M4: 2,066,096 km (0.105 R)
• M5: 2,656,858 km (0.088 R)
• M6: 4,948,698 km (0.09 R)
• M7: 5,779,863 km (0.114 R)
• M8: 6,559,119 km (0.069 R)
• M9: 9,962,919 km (0.072 R)
• M10: 12,447,141 km (0.035 R)
• M11: 15,255,692 km (0.052 R)
• M12: 18,461,724 km (0.114 R)
• M13: 19,036,628 km (0.053 R)
• M14: 20,071,397 km (0.095 R)
• M15: 20,756,106 km (0.095 R)
• M16: 25,371,649 km (0.098 R)
• M17: 27,173,406 km (0.1 R)
• M18: 30,929,809 km (0.079 R)
• M19: 32,984,236 km (0.116 R)
• M20: 34,044,885 km (0.069 R)
• M21: 38,749,140 km (0.1 R)
• M22: 39,336,461 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 556.4

Radius: 5.3

Gravity: 19.81 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 4.86 AU - 7.64 AU

Year: 10089 Days

Day: 19.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 79,654,339 km

• M1: 66,122 km (0.089 R)
• M2: 282,740 km (0.045 R)
• M3: 464,352 km (0.091 R)
• M4: 940,372 km (0.025 R)
• M5: 1,537,866 km (0.104 R)
• M6: 1,942,828 km (0.118 R)
• M7: 2,550,344 km (0.107 R)
• M8: 3,971,225 km (0.076 R)
• M9: 4,186,646 km (0.031 R)
• M10: 4,640,975 km (0.114 R)
• M11: 5,033,819 km (0.089 R)
• M12: 5,383,279 km (0.111 R)
• M13: 6,201,729 km (0.12 R)
• M14: 7,418,110 km (0.048 R)
• M15: 8,341,278 km (0.105 R)
• M16: 8,695,227 km (0.112 R)
• M17: 9,105,424 km (0.11 R)
• M18: 9,385,920 km (0.119 R)
• M19: 10,062,850 km (0.079 R)
• M20: 10,566,098 km (0.102 R)
• M21: 11,351,935 km (0.034 R)
• M22: 13,098,341 km (0.1 R)
• M23: 13,697,929 km (0.082 R)
• M24: 19,863,156 km (0.078 R)
• M25: 21,138,329 km (0.109 R)
• M26: 21,962,463 km (0.12 R)
• M27: 23,586,947 km (0.082 R)
• M28: 26,881,541 km (0.104 R)
• M29: 30,887,772 km (0.09 R)
• M30: 31,203,273 km (0.094 R)
• M31: 31,947,972 km (0.085 R)
• M32: 38,458,770 km (0.108 R)
• M33: 40,559,274 km (0.071 R)
• M34: 41,958,463 km (0.093 R)
• M35: 43,785,202 km (0.046 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 909.7

Radius: 5.3

Gravity: 32.39 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 7.21 AU - 8.19 AU

Year: 13796 Days

Day: 17.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 79,654,339 km

• M1: 66,721 km (0.087 R)
• M2: 364,271 km (0.06 R)
• M3: 696,228 km (0.103 R)
• M4: 1,037,012 km (0.107 R)
• M5: 1,378,544 km (0.059 R)
• M6: 2,143,737 km (0.115 R)
• M7: 2,431,414 km (0.063 R)
• M8: 2,744,373 km (0.103 R)
• M9: 3,423,697 km (0.114 R)
• M10: 3,616,828 km (0.083 R)
• M11: 4,116,485 km (0.092 R)
• M12: 4,463,552 km (0.067 R)
• M13: 6,539,970 km (0.108 R)
• M14: 7,012,400 km (0.08 R)
• M15: 7,461,343 km (0.106 R)
• M16: 9,397,140 km (0.076 R)
• M17: 10,683,083 km (0.084 R)
• M18: 11,955,862 km (0.074 R)
• M19: 12,858,535 km (0.107 R)
• M20: 13,326,478 km (0.072 R)
• M21: 17,732,135 km (0.102 R)
• M22: 22,534,974 km (0.11 R)
• M23: 26,928,664 km (0.047 R)
• M24: 35,767,804 km (0.072 R)
• M25: 36,559,176 km (0.089 R)
• M26: 37,904,061 km (0.101 R)
• M27: 39,841,803 km (0.03 R)
• M28: 42,282,193 km (0.066 R)
• M29: 49,544,421 km (0.051 R)
• M30: 49,870,545 km (0.108 R)
• M31: 50,527,279 km (0.055 R)
• M32: 50,857,891 km (0.109 R)
• M33: 51,523,302 km (0.075 R)
• M34: 54,070,206 km (0.076 R)
• M35: 59,413,542 km (0.053 R)
• M36: 61,645,692 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 803.6

Radius: 7.6

Gravity: 13.91 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 9.75 AU - 9.83 AU

Year: 19778 Days

Day: 18.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 79,654,339 km

• M1: 94,546 km (0.063 R)
• M2: 841,937 km (0.104 R)
• M3: 1,308,084 km (0.092 R)
• M4: 1,695,542 km (0.085 R)
• M5: 1,936,245 km (0.066 R)
• M6: 3,624,008 km (0.03 R)
• M7: 4,670,146 km (0.115 R)
• M8: 5,780,911 km (0.088 R)
• M9: 7,200,445 km (0.051 R)
• M10: 11,805,516 km (0.102 R)
• M11: 12,483,643 km (0.076 R)
• M12: 12,762,045 km (0.098 R)
• M13: 13,044,635 km (0.115 R)
• M14: 16,684,950 km (0.085 R)
• M15: 17,625,472 km (0.119 R)
• M16: 18,331,274 km (0.082 R)
• M17: 19,799,278 km (0.086 R)
• M18: 22,760,269 km (0.049 R)
• M19: 27,735,894 km (0.109 R)
• M20: 29,666,455 km (0.107 R)
• M21: 30,162,820 km (0.087 R)
• M22: 43,005,349 km (0.053 R)
• M23: 44,121,947 km (0.026 R)
• M24: 45,257,694 km (0.04 R)
• M25: 46,913,892 km (0.101 R)
• M26: 50,346,715 km (0.113 R)
• M27: 57,132,324 km (0.119 R)
• M28: 59,654,096 km (0.093 R)
• M29: 64,295,669 km (0.117 R)
• M30: 65,965,031 km (0.104 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 246 - 12,619 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit