🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.53 AU - 0.59 AU

Year: 275 Days

Day: 33 Hours

Environment

Temp: -129 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.9

Radius: 9.7

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.85 AU - 0.91 AU

Year: 542 Days

Day: 8.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,558,904 km

• M1: 120,576 km (0.066 R)
• M2: 423,960 km (0.057 R)
• M3: 747,840 km (0.098 R)
• M4: 1,133,802 km (0.079 R)
• M5: 1,618,649 km (0.108 R)
• M6: 2,602,704 km (0.113 R)
• M7: 2,986,721 km (0.087 R)
• M8: 3,340,969 km (0.062 R)
• M9: 3,969,131 km (0.073 R)
• M10: 4,787,581 km (0.098 R)

Planet 3 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 335.7

Radius: 5

Gravity: 13.43 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 7.93 AU - 11.81 AU

Year: 20342 Days

Day: 15.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,558,904 km

• M1: 63,130 km (0.052 R)
• M2: 287,826 km (0.097 R)
• M3: 554,410 km (0.082 R)
• M4: 716,424 km (0.061 R)
• M5: 1,127,370 km (0.028 R)
• M6: 1,378,395 km (0.087 R)
• M7: 1,764,956 km (0.059 R)
• M8: 2,029,594 km (0.05 R)
• M9: 2,638,607 km (0.111 R)
• M10: 3,033,695 km (0.095 R)
• M11: 5,884,881 km (0.065 R)
• M12: 6,976,646 km (0.113 R)
• M13: 7,413,173 km (0.099 R)
• M14: 7,775,349 km (0.116 R)
• M15: 9,712,193 km (0.104 R)
• M16: 13,088,168 km (0.114 R)
• M17: 17,407,657 km (0.049 R)
• M18: 17,805,587 km (0.047 R)
• M19: 18,128,120 km (0.097 R)
• M20: 21,754,522 km (0.101 R)
• M21: 22,968,060 km (0.103 R)
• M22: 28,713,516 km (0.093 R)
• M23: 29,157,074 km (0.026 R)
• M24: 32,033,841 km (0.11 R)
• M25: 34,342,734 km (0.093 R)
• M26: 36,500,534 km (0.074 R)
• M27: 37,546,522 km (0.111 R)
• M28: 50,241,996 km (0.032 R)
• M29: 50,886,015 km (0.098 R)
• M30: 54,696,273 km (0.093 R)
• M31: 58,160,361 km (0.109 R)

Planet 4 - Ice Giant

Semi-Major Axis: 10.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150.9

Radius: 4

Gravity: 9.43 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 9.41 AU - 10.81 AU

Year: 21088 Days

Day: 16.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 66,558,904 km

• M1: 49,816 km (0.08 R)
• M2: 220,058 km (0.107 R)
• M3: 424,559 km (0.117 R)
• M4: 549,174 km (0.072 R)
• M5: 707,149 km (0.067 R)
• M6: 885,619 km (0.101 R)
• M7: 1,452,745 km (0.12 R)
• M8: 1,697,337 km (0.109 R)
• M9: 1,869,824 km (0.108 R)
• M10: 2,577,721 km (0.066 R)
• M11: 2,742,428 km (0.088 R)
• M12: 2,980,588 km (0.05 R)
• M13: 4,073,251 km (0.087 R)
• M14: 4,383,218 km (0.089 R)
• M15: 4,648,455 km (0.095 R)
• M16: 6,775,138 km (0.106 R)
• M17: 7,089,742 km (0.068 R)
• M18: 8,179,563 km (0.073 R)
• M19: 8,491,026 km (0.044 R)
• M20: 8,627,010 km (0.101 R)
• M21: 10,476,638 km (0.078 R)
• M22: 11,997,600 km (0.055 R)
• M23: 16,431,381 km (0.107 R)
• M24: 21,845,179 km (0.052 R)
• M25: 25,604,723 km (0.115 R)
• M26: 25,983,654 km (0.072 R)
• M27: 28,640,812 km (0.067 R)
• M28: 30,297,907 km (0.097 R)
• M29: 31,365,288 km (0.111 R)
• M30: 31,799,271 km (0.066 R)
• M31: 39,928,120 km (0.109 R)
• M32: 42,652,148 km (0.049 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 389.8

Radius: 5.1

Gravity: 14.99 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 8.76 AU - 12.44 AU

Year: 22640 Days

Day: 23 Hours

Environment

Temp: -222 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 66,558,904 km

• M1: 63,429 km (0.044 R)
• M2: 323,131 km (0.101 R)
• M3: 518,057 km (0.073 R)
• M4: 752,926 km (0.119 R)
• M5: 1,197,980 km (0.113 R)
• M6: 1,517,670 km (0.115 R)
• M7: 2,141,494 km (0.064 R)
• M8: 2,658,803 km (0.094 R)
• M9: 3,642,858 km (0.113 R)
• M10: 3,907,496 km (0.052 R)
• M11: 5,427,860 km (0.093 R)
• M12: 6,215,642 km (0.1 R)
• M13: 6,423,882 km (0.095 R)
• M14: 6,679,994 km (0.091 R)
• M15: 8,412,487 km (0.1 R)
• M16: 8,719,162 km (0.1 R)
• M17: 9,246,794 km (0.108 R)
• M18: 9,573,516 km (0.103 R)
• M19: 10,599,757 km (0.089 R)
• M20: 11,697,207 km (0.057 R)
• M21: 13,973,339 km (0.081 R)
• M22: 16,608,056 km (0.108 R)
• M23: 17,748,740 km (0.102 R)
• M24: 18,338,156 km (0.09 R)
• M25: 20,642,113 km (0.095 R)
• M26: 21,106,315 km (0.103 R)
• M27: 24,345,857 km (0.052 R)
• M28: 26,245,450 km (0.073 R)
• M29: 30,695,538 km (0.053 R)
• M30: 32,909,138 km (0.092 R)
• M31: 33,926,254 km (0.059 R)
• M32: 36,560,373 km (0.113 R)
• M33: 43,735,386 km (0.091 R)
• M34: 44,040,416 km (0.09 R)
• M35: 44,964,034 km (0.064 R)
• M36: 45,743,588 km (0.081 R)
• M37: 53,865,406 km (0.114 R)
• M38: 54,040,585 km (0.075 R)
• M39: 55,454,734 km (0.1 R)
• M40: 66,452,870 km (0.063 R)
• M41: 67,260,848 km (0.031 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 342.1

Radius: 4.1

Gravity: 20.35 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 9.38 AU - 12.14 AU

Year: 23154 Days

Day: 19.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 66,558,904 km

• M1: 51,013 km (0.082 R)
• M2: 222,003 km (0.09 R)
• M3: 492,925 km (0.109 R)
• M4: 721,211 km (0.032 R)
• M5: 936,333 km (0.109 R)
• M6: 1,449,304 km (0.095 R)
• M7: 2,355,269 km (0.11 R)
• M8: 2,829,793 km (0.086 R)
• M9: 3,285,020 km (0.113 R)
• M10: 3,447,184 km (0.066 R)
• M11: 3,700,453 km (0.115 R)
• M12: 3,876,081 km (0.078 R)
• M13: 4,057,244 km (0.102 R)
• M14: 5,265,396 km (0.088 R)
• M15: 7,638,467 km (0.078 R)
• M16: 9,896,498 km (0.092 R)
• M17: 11,420,750 km (0.088 R)
• M18: 12,628,903 km (0.105 R)
• M19: 16,444,696 km (0.062 R)
• M20: 18,655,004 km (0.108 R)
• M21: 19,609,588 km (0.109 R)
• M22: 26,030,179 km (0.114 R)
• M23: 27,885,193 km (0.068 R)
• M24: 31,370,225 km (0.079 R)
• M25: 31,978,041 km (0.087 R)
• M26: 35,396,053 km (0.088 R)
• M27: 38,354,949 km (0.096 R)
• M28: 38,493,178 km (0.11 R)
• M29: 40,464,279 km (0.03 R)
• M30: 42,059,292 km (0.072 R)
• M31: 44,453,456 km (0.044 R)
• M32: 49,675,319 km (0.094 R)
• M33: 51,334,958 km (0.078 R)
• M34: 53,719,847 km (0.07 R)
• M35: 62,265,177 km (0.113 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 13,728 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit