🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924

Radius: 11.7

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.39 AU - 0.63 AU

Year: 256 Days

Day: 10.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,734,539 km

• M1: 145,559 km (0.098 R)
• M2: 543,339 km (0.064 R)
• M3: 1,014,722 km (0.12 R)
• M4: 1,533,977 km (0.091 R)
• M5: 2,530,598 km (0.075 R)
• M6: 3,296,688 km (0.116 R)
• M7: 4,013,561 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298

Radius: 8.2

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.46 AU - 0.6 AU

Year: 271 Days

Day: 8 Hours

Environment

Temp: -134 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,734,539 km

• M1: 102,026 km (0.025 R)
• M2: 506,239 km (0.091 R)
• M3: 791,522 km (0.119 R)
• M4: 1,159,234 km (0.069 R)
• M5: 1,458,280 km (0.116 R)
• M6: 1,752,988 km (0.118 R)
• M7: 2,364,095 km (0.084 R)
• M8: 3,046,261 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.9

Radius: 10.2

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.77 AU - 1.19 AU

Year: 682 Days

Day: 9.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,734,539 km

• M1: 127,457 km (0.047 R)
• M2: 462,407 km (0.1 R)
• M3: 901,776 km (0.054 R)
• M4: 1,259,315 km (0.078 R)
• M5: 1,617,003 km (0.108 R)
• M6: 2,024,508 km (0.087 R)
• M7: 2,384,889 km (0.112 R)
• M8: 2,719,839 km (0.12 R)
• M9: 3,198,851 km (0.108 R)
• M10: 3,635,827 km (0.114 R)
• M11: 3,993,216 km (0.11 R)
• M12: 4,452,930 km (0.034 R)
• M13: 5,103,382 km (0.108 R)
• M14: 6,761,225 km (0.07 R)
• M15: 7,083,459 km (0.089 R)
• M16: 7,416,165 km (0.111 R)
• M17: 8,041,334 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.7

Radius: 9.2

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.01 AU - 1.21 AU

Year: 822 Days

Day: 9.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,734,539 km

• M1: 114,442 km (0.115 R)
• M2: 494,122 km (0.094 R)
• M3: 1,029,383 km (0.082 R)
• M4: 1,420,881 km (0.042 R)
• M5: 1,755,082 km (0.101 R)
• M6: 2,113,220 km (0.079 R)
• M7: 2,585,500 km (0.102 R)
• M8: 2,918,355 km (0.093 R)
• M9: 3,266,918 km (0.086 R)
• M10: 3,560,130 km (0.053 R)
• M11: 3,885,655 km (0.118 R)
• M12: 5,176,386 km (0.106 R)
• M13: 5,746,503 km (0.031 R)
• M14: 6,216,091 km (0.042 R)
• M15: 6,990,110 km (0.12 R)
• M16: 7,457,304 km (0.065 R)
• M17: 7,827,110 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.2

Radius: 11.3

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.02 AU - 1.58 AU

Year: 1042 Days

Day: 7.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,734,539 km

• M1: 140,472 km (0.106 R)
• M2: 704,606 km (0.054 R)
• M3: 1,229,994 km (0.108 R)
• M4: 1,710,352 km (0.119 R)
• M5: 2,162,437 km (0.029 R)
• M6: 2,792,693 km (0.109 R)
• M7: 3,163,995 km (0.119 R)
• M8: 4,481,803 km (0.094 R)
• M9: 5,580,599 km (0.108 R)
• M10: 6,975,150 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.8

Radius: 14.5

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 4.02 AU - 6.08 AU

Year: 7977 Days

Day: 14.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,734,539 km

• M1: 180,265 km (0.043 R)
• M2: 807,081 km (0.06 R)
• M3: 1,271,881 km (0.089 R)
• M4: 1,779,616 km (0.102 R)
• M5: 2,406,880 km (0.102 R)
• M6: 3,012,901 km (0.097 R)
• M7: 5,882,487 km (0.102 R)
• M8: 6,595,920 km (0.106 R)
• M9: 7,103,056 km (0.093 R)
• M10: 8,655,434 km (0.081 R)
• M11: 9,444,114 km (0.07 R)
• M12: 10,716,294 km (0.117 R)
• M13: 11,419,703 km (0.113 R)
• M14: 11,887,944 km (0.105 R)
• M15: 16,567,815 km (0.105 R)
• M16: 17,168,899 km (0.097 R)
• M17: 20,018,589 km (0.109 R)
• M18: 23,170,466 km (0.118 R)
• M19: 28,025,366 km (0.111 R)
• M20: 32,367,893 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 19.5

Radius: 5.1

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 5.07 AU - 6.61 AU

Year: 9920 Days

Day: 17.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,734,539 km

• M1: 63,429 km (0.031 R)
• M2: 271,371 km (0.093 R)
• M3: 791,672 km (0.034 R)
• M4: 1,323,492 km (0.116 R)
• M5: 2,209,112 km (0.069 R)
• M6: 2,719,540 km (0.095 R)
• M7: 2,891,428 km (0.098 R)
• M8: 3,116,572 km (0.12 R)
• M9: 4,866,568 km (0.102 R)
• M10: 5,587,032 km (0.111 R)
• M11: 8,143,210 km (0.035 R)
• M12: 8,411,290 km (0.106 R)
• M13: 10,594,671 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 497

Radius: 6.2

Gravity: 12.93 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 6.5 AU - 9.24 AU

Year: 15519 Days

Day: 15.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,734,539 km

• M1: 77,043 km (0.107 R)
• M2: 375,640 km (0.118 R)
• M3: 815,907 km (0.1 R)
• M4: 1,665,174 km (0.086 R)
• M5: 2,130,423 km (0.112 R)
• M6: 2,343,301 km (0.108 R)
• M7: 2,634,867 km (0.105 R)
• M8: 3,093,385 km (0.077 R)
• M9: 4,050,961 km (0.116 R)
• M10: 4,410,145 km (0.105 R)
• M11: 4,888,858 km (0.093 R)
• M12: 5,226,800 km (0.065 R)
• M13: 5,836,860 km (0.104 R)
• M14: 7,241,135 km (0.07 R)
• M15: 7,906,846 km (0.073 R)
• M16: 9,827,683 km (0.081 R)
• M17: 14,425,573 km (0.088 R)
• M18: 15,548,604 km (0.038 R)
• M19: 20,023,675 km (0.073 R)
• M20: 21,329,814 km (0.099 R)
• M21: 26,399,686 km (0.052 R)
• M22: 28,829,604 km (0.097 R)
• M23: 37,264,530 km (0.085 R)
• M24: 43,097,800 km (0.108 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 20,143 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit