🌌 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 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.7

Radius: 8

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.46 AU - 0.7 AU

Year: 305 Days

Day: 10.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,688,560 km

• M1: 101,427 km (0.06 R)
• M2: 455,825 km (0.116 R)
• M3: 931,995 km (0.055 R)
• M4: 1,762,113 km (0.086 R)
• M5: 2,111,424 km (0.096 R)
• M6: 3,015,295 km (0.078 R)
• M7: 3,274,548 km (0.102 R)
• M8: 3,548,910 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.2

Radius: 14.1

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.52 AU - 0.7 AU

Year: 329 Days

Day: 10.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,688,560 km

• M1: 175,478 km (0.048 R)
• M2: 724,802 km (0.082 R)
• M3: 1,396,795 km (0.077 R)
• M4: 2,715,800 km (0.111 R)
• M5: 3,206,630 km (0.109 R)
• M6: 3,768,819 km (0.083 R)
• M7: 4,890,953 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.9

Radius: 11.7

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.82 AU - 1.04 AU

Year: 619 Days

Day: 6.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,688,560 km

• M1: 146,307 km (0.065 R)
• M2: 589,416 km (0.092 R)
• M3: 998,865 km (0.097 R)
• M4: 1,669,213 km (0.058 R)
• M5: 2,221,678 km (0.115 R)
• M6: 2,744,971 km (0.116 R)
• M7: 3,446,436 km (0.105 R)
• M8: 3,960,005 km (0.111 R)
• M9: 4,524,288 km (0.071 R)
• M10: 4,903,669 km (0.113 R)
• M11: 5,304,441 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.1

Radius: 11.1

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.1 AU - 1.28 AU

Year: 896 Days

Day: 14.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,688,560 km

• M1: 138,079 km (0.112 R)
• M2: 530,474 km (0.098 R)
• M3: 1,295,518 km (0.114 R)
• M4: 2,685,581 km (0.096 R)
• M5: 3,188,080 km (0.114 R)
• M6: 3,571,200 km (0.062 R)
• M7: 3,970,178 km (0.032 R)
• M8: 4,944,210 km (0.038 R)
• M9: 5,894,306 km (0.096 R)
• M10: 7,159,305 km (0.095 R)
• M11: 8,251,519 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.8

Radius: 9.1

Gravity: 9.1 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.62 AU - 1.76 AU

Year: 1516 Days

Day: 9 Hours

Environment

Temp: -199 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,688,560 km

• M1: 113,246 km (0.082 R)
• M2: 419,622 km (0.073 R)
• M3: 993,330 km (0.092 R)
• M4: 1,335,011 km (0.078 R)
• M5: 1,666,670 km (0.108 R)
• M6: 2,191,459 km (0.1 R)
• M7: 3,603,813 km (0.075 R)
• M8: 3,982,295 km (0.059 R)
• M9: 4,311,710 km (0.069 R)
• M10: 5,978,829 km (0.072 R)
• M11: 6,788,901 km (0.113 R)
• M12: 7,395,371 km (0.115 R)
• M13: 8,655,882 km (0.102 R)
• M14: 9,179,475 km (0.077 R)
• M15: 9,465,057 km (0.089 R)
• M16: 11,018,930 km (0.091 R)
• M17: 13,576,306 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.5

Radius: 9.6

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.82 AU - 4.26 AU

Year: 5605 Days

Day: 12.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,688,560 km

• M1: 119,828 km (0.104 R)
• M2: 441,463 km (0.054 R)
• M3: 767,437 km (0.109 R)
• M4: 1,088,923 km (0.04 R)
• M5: 1,434,494 km (0.098 R)
• M6: 1,853,817 km (0.091 R)
• M7: 2,169,169 km (0.112 R)
• M8: 3,887,301 km (0.069 R)
• M9: 5,139,136 km (0.065 R)
• M10: 5,447,906 km (0.045 R)
• M11: 5,794,225 km (0.114 R)
• M12: 7,599,422 km (0.109 R)
• M13: 8,613,845 km (0.083 R)
• M14: 9,932,700 km (0.076 R)
• M15: 10,909,574 km (0.108 R)
• M16: 12,578,339 km (0.104 R)
• M17: 13,540,851 km (0.084 R)
• M18: 15,661,401 km (0.1 R)
• M19: 16,262,336 km (0.067 R)
• M20: 17,297,852 km (0.119 R)
• M21: 18,212,194 km (0.036 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 511.6

Radius: 4.3

Gravity: 27.67 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 5.12 AU - 7.26 AU

Year: 10630 Days

Day: 22.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,688,560 km

• M1: 57,146 km (0.116 R)
• M2: 358,885 km (0.073 R)
• M3: 535,261 km (0.081 R)
• M4: 2,345,246 km (0.037 R)
• M5: 2,696,202 km (0.111 R)
• M6: 3,081,417 km (0.115 R)
• M7: 4,486,141 km (0.077 R)
• M8: 4,811,068 km (0.1 R)
• M9: 7,746,477 km (0.077 R)
• M10: 8,565,376 km (0.078 R)
• M11: 9,924,323 km (0.1 R)
• M12: 11,913,974 km (0.082 R)
• M13: 12,478,706 km (0.108 R)
• M14: 13,783,499 km (0.065 R)
• M15: 26,774,429 km (0.114 R)
• M16: 31,521,319 km (0.107 R)
• M17: 37,393,484 km (0.098 R)
• M18: 37,873,095 km (0.071 R)
• M19: 40,208,018 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629.4

Radius: 4.5

Gravity: 31.08 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.84 AU - 9.7 AU

Year: 19482 Days

Day: 18.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,688,560 km

• M1: 353,500 km (0.059 R)
• M2: 554,111 km (0.085 R)
• M3: 1,124,078 km (0.079 R)
• M4: 1,377,198 km (0.111 R)
• M5: 2,261,920 km (0.039 R)
• M6: 2,480,931 km (0.087 R)
• M7: 2,811,094 km (0.115 R)
• M8: 3,587,806 km (0.101 R)
• M9: 4,265,783 km (0.119 R)
• M10: 8,706,147 km (0.052 R)
• M11: 9,026,586 km (0.115 R)
• M12: 11,556,585 km (0.119 R)
• M13: 11,813,594 km (0.075 R)
• M14: 14,597,162 km (0.065 R)
• M15: 29,131,941 km (0.098 R)
• M16: 31,314,724 km (0.058 R)
• M17: 38,513,074 km (0.084 R)
• M18: 38,799,105 km (0.08 R)
• M19: 41,887,254 km (0.1 R)
• M20: 44,977,049 km (0.09 R)
• M21: 46,254,315 km (0.11 R)
• M22: 46,739,461 km (0.097 R)
• M23: 52,127,528 km (0.049 R)
• M24: 55,696,933 km (0.097 R)
• M25: 67,999,563 km (0.108 R)
• M26: 71,604,572 km (0.088 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 455 - 11,364 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit