🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.6

Radius: 14

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.64 AU - 0.7 AU

Year: 372 Days

Day: 7.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,059,964 km

• M1: 174,132 km (0.098 R)
• M2: 991,086 km (0.107 R)
• M3: 1,705,865 km (0.101 R)
• M4: 2,157,500 km (0.109 R)
• M5: 2,699,942 km (0.112 R)
• M6: 3,897,174 km (0.056 R)
• M7: 4,680,917 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820

Radius: 11.1

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.24 AU - 1.36 AU

Year: 1005 Days

Day: 5.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,059,964 km

• M1: 138,677 km (0.04 R)
• M2: 592,108 km (0.112 R)
• M3: 1,076,357 km (0.116 R)
• M4: 1,463,965 km (0.115 R)
• M5: 1,877,752 km (0.091 R)
• M6: 2,347,041 km (0.095 R)
• M7: 3,026,664 km (0.119 R)
• M8: 4,261,595 km (0.071 R)
• M9: 7,492,460 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.7

Radius: 13.6

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.27 AU - 2.37 AU

Year: 2397 Days

Day: 5.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,059,964 km

• M1: 169,195 km (0.072 R)
• M2: 608,115 km (0.109 R)
• M3: 1,375,104 km (0.084 R)
• M4: 1,965,118 km (0.041 R)
• M5: 2,553,636 km (0.108 R)
• M6: 3,001,232 km (0.095 R)
• M7: 3,726,333 km (0.048 R)
• M8: 4,189,040 km (0.065 R)
• M9: 5,835,215 km (0.095 R)
• M10: 8,839,140 km (0.119 R)
• M11: 9,846,382 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.7

Radius: 9.2

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.98 AU - 4.72 AU

Year: 5124 Days

Day: 6.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,059,964 km

• M1: 114,442 km (0.104 R)
• M2: 514,168 km (0.084 R)
• M3: 1,858,454 km (0.116 R)
• M4: 2,657,457 km (0.112 R)
• M5: 3,367,448 km (0.061 R)
• M6: 3,767,323 km (0.081 R)
• M7: 4,092,998 km (0.056 R)
• M8: 7,578,329 km (0.119 R)
• M9: 9,360,189 km (0.1 R)
• M10: 10,153,357 km (0.072 R)
• M11: 10,990,656 km (0.111 R)
• M12: 17,901,330 km (0.111 R)
• M13: 18,826,144 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.1

Radius: 11.5

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.83 AU - 5.23 AU

Year: 7651 Days

Day: 12.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,059,964 km

• M1: 168,447 km (0.063 R)
• M2: 597,943 km (0.107 R)
• M3: 970,292 km (0.114 R)
• M4: 1,770,491 km (0.072 R)
• M5: 3,451,821 km (0.099 R)
• M6: 3,863,365 km (0.092 R)
• M7: 4,715,624 km (0.073 R)
• M8: 5,609,471 km (0.104 R)
• M9: 6,013,984 km (0.087 R)
• M10: 9,046,482 km (0.033 R)
• M11: 13,351,909 km (0.045 R)
• M12: 14,673,457 km (0.116 R)
• M13: 16,187,986 km (0.096 R)
• M14: 16,955,423 km (0.074 R)
• M15: 18,093,563 km (0.094 R)
• M16: 19,709,968 km (0.12 R)
• M17: 20,269,614 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.8

Radius: 11.9

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.84 AU - 5.56 AU

Year: 8043 Days

Day: 13.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,059,964 km

• M1: 149,149 km (0.106 R)
• M2: 549,174 km (0.118 R)
• M3: 1,361,490 km (0.111 R)
• M4: 1,883,736 km (0.079 R)
• M5: 2,353,623 km (0.108 R)
• M6: 2,782,072 km (0.073 R)
• M7: 3,777,496 km (0.115 R)
• M8: 4,996,419 km (0.091 R)
• M9: 7,408,835 km (0.093 R)
• M10: 8,628,356 km (0.114 R)
• M11: 11,775,746 km (0.1 R)
• M12: 18,520,216 km (0.091 R)
• M13: 19,203,729 km (0.106 R)
• M14: 20,952,678 km (0.117 R)
• M15: 24,246,673 km (0.101 R)
• M16: 24,914,777 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.5

Radius: 12.2

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 5.17 AU - 5.69 AU

Year: 8582 Days

Day: 14.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,059,964 km

• M1: 151,692 km (0.116 R)
• M2: 634,594 km (0.05 R)
• M3: 1,125,874 km (0.058 R)
• M4: 1,579,006 km (0.056 R)
• M5: 3,083,212 km (0.086 R)
• M6: 3,942,353 km (0.12 R)
• M7: 4,364,069 km (0.117 R)
• M8: 6,198,289 km (0.079 R)
• M9: 6,805,806 km (0.076 R)
• M10: 8,663,063 km (0.119 R)
• M11: 11,224,029 km (0.089 R)
• M12: 12,918,075 km (0.078 R)
• M13: 14,024,352 km (0.097 R)
• M14: 15,800,976 km (0.073 R)
• M15: 19,724,629 km (0.107 R)
• M16: 20,891,492 km (0.088 R)
• M17: 24,009,261 km (0.103 R)
• M18: 24,668,090 km (0.113 R)
• M19: 28,693,171 km (0.099 R)
• M20: 35,415,052 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 346.4

Radius: 4.6

Gravity: 16.37 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 6.12 AU - 6.18 AU

Year: 10344 Days

Day: 20.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,059,964 km

• M1: 57,446 km (0.083 R)
• M2: 205,248 km (0.077 R)
• M3: 859,589 km (0.109 R)
• M4: 1,018,313 km (0.088 R)
• M5: 2,113,968 km (0.113 R)
• M6: 3,312,097 km (0.04 R)
• M7: 5,733,338 km (0.073 R)
• M8: 6,440,637 km (0.086 R)
• M9: 6,760,926 km (0.115 R)
• M10: 8,397,826 km (0.082 R)
• M11: 9,262,951 km (0.075 R)
• M12: 12,159,315 km (0.099 R)
• M13: 12,648,350 km (0.107 R)
• M14: 13,957,781 km (0.102 R)
• M15: 15,798,134 km (0.059 R)
• M16: 16,842,775 km (0.07 R)
• M17: 22,520,015 km (0.1 R)
• M18: 27,000,620 km (0.095 R)
• M19: 31,530,594 km (0.111 R)
• M20: 35,874,617 km (0.102 R)
• M21: 36,207,322 km (0.062 R)
• M22: 39,060,004 km (0.115 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: 193 - 15,691 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit