🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.1

Radius: 12.3

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.85 AU - 1.09 AU

Year: 637 Days

Day: 8.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 75,933,316 km

• M1: 153,039 km (0.099 R)
• M2: 593,156 km (0.106 R)
• M3: 999,314 km (0.096 R)
• M4: 1,410,409 km (0.11 R)
• M5: 2,154,359 km (0.075 R)
• M6: 2,835,179 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393

Radius: 13.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.9 AU - 1.48 AU

Year: 866 Days

Day: 10.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,933,316 km

• M1: 162,912 km (0.099 R)
• M2: 647,609 km (0.043 R)
• M3: 1,163,273 km (0.087 R)
• M4: 1,682,826 km (0.086 R)
• M5: 2,229,756 km (0.082 R)
• M6: 2,814,235 km (0.104 R)
• M7: 3,331,096 km (0.107 R)
• M8: 3,826,265 km (0.105 R)
• M9: 4,248,580 km (0.101 R)
• M10: 5,726,008 km (0.108 R)
• M11: 6,261,568 km (0.066 R)
• M12: 7,345,405 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.6

Radius: 8.1

Gravity: 13.12 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.67 AU - 3.13 AU

Year: 3293 Days

Day: 11.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,933,316 km

• M1: 100,979 km (0.107 R)
• M2: 457,620 km (0.072 R)
• M3: 1,335,011 km (0.118 R)
• M4: 2,236,339 km (0.05 R)
• M5: 2,766,813 km (0.106 R)
• M6: 3,534,848 km (0.105 R)
• M7: 4,165,403 km (0.088 R)
• M8: 4,844,129 km (0.1 R)
• M9: 6,301,810 km (0.063 R)
• M10: 6,661,743 km (0.117 R)
• M11: 7,099,017 km (0.055 R)
• M12: 7,488,869 km (0.119 R)
• M13: 8,205,593 km (0.111 R)
• M14: 9,004,595 km (0.1 R)
• M15: 9,854,461 km (0.084 R)
• M16: 11,402,948 km (0.071 R)
• M17: 12,212,123 km (0.096 R)
• M18: 13,644,971 km (0.11 R)
• M19: 14,869,280 km (0.042 R)
• M20: 16,500,795 km (0.108 R)
• M21: 17,535,114 km (0.097 R)
• M22: 19,923,295 km (0.065 R)
• M23: 21,029,122 km (0.083 R)
• M24: 21,766,191 km (0.07 R)
• M25: 22,106,825 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.3

Radius: 8.7

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.25 AU - 3.71 AU

Year: 3430 Days

Day: 9.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 75,933,316 km

• M1: 108,159 km (0.079 R)
• M2: 926,460 km (0.068 R)
• M3: 1,245,253 km (0.092 R)
• M4: 2,059,215 km (0.099 R)
• M5: 3,772,858 km (0.092 R)
• M6: 5,411,553 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400

Radius: 10.7

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.17 AU - 3.25 AU

Year: 3835 Days

Day: 13.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,933,316 km

• M1: 133,142 km (0.109 R)
• M2: 473,328 km (0.103 R)
• M3: 841,189 km (0.115 R)
• M4: 1,508,545 km (0.079 R)
• M5: 2,086,591 km (0.057 R)
• M6: 2,635,914 km (0.095 R)
• M7: 3,460,648 km (0.102 R)
• M8: 5,239,217 km (0.071 R)
• M9: 6,065,745 km (0.083 R)
• M10: 6,917,555 km (0.113 R)
• M11: 7,279,732 km (0.12 R)
• M12: 7,654,773 km (0.081 R)
• M13: 10,067,787 km (0.094 R)
• M14: 10,772,393 km (0.107 R)
• M15: 11,342,959 km (0.12 R)
• M16: 11,890,787 km (0.1 R)
• M17: 12,456,117 km (0.081 R)
• M18: 14,650,718 km (0.057 R)
• M19: 15,149,028 km (0.057 R)
• M20: 19,973,261 km (0.093 R)
• M21: 20,834,944 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.4

Radius: 9.7

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.94 AU - 4.3 AU

Year: 4593 Days

Day: 10.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,933,316 km

• M1: 121,473 km (0.063 R)
• M2: 800,797 km (0.113 R)
• M3: 1,373,308 km (0.05 R)
• M4: 1,811,929 km (0.037 R)
• M5: 2,328,192 km (0.102 R)
• M6: 2,806,456 km (0.045 R)
• M7: 6,986,819 km (0.103 R)
• M8: 7,850,747 km (0.114 R)
• M9: 10,421,586 km (0.028 R)
• M10: 12,939,468 km (0.083 R)
• M11: 13,699,874 km (0.076 R)
• M12: 20,444,793 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 203.4

Radius: 5.9

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.85 AU - 9.47 AU

Year: 14138 Days

Day: 17.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,933,316 km

• M1: 86,019 km (0.117 R)
• M2: 847,322 km (0.09 R)
• M3: 1,202,916 km (0.101 R)
• M4: 1,440,927 km (0.095 R)
• M5: 1,812,079 km (0.045 R)
• M6: 2,028,547 km (0.086 R)
• M7: 2,627,387 km (0.059 R)
• M8: 2,864,799 km (0.095 R)
• M9: 3,737,254 km (0.072 R)
• M10: 3,936,219 km (0.118 R)
• M11: 5,825,341 km (0.085 R)
• M12: 6,127,379 km (0.073 R)
• M13: 6,799,522 km (0.12 R)
• M14: 12,274,954 km (0.111 R)
• M15: 14,042,752 km (0.09 R)
• M16: 14,647,427 km (0.037 R)
• M17: 15,269,155 km (0.119 R)
• M18: 16,833,351 km (0.117 R)
• M19: 27,473,799 km (0.057 R)
• M20: 28,132,927 km (0.078 R)
• M21: 28,610,144 km (0.088 R)
• M22: 30,673,398 km (0.101 R)
• M23: 31,999,284 km (0.09 R)
• M24: 39,800,663 km (0.041 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 889.5

Radius: 6.7

Gravity: 19.82 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 6.75 AU - 10.91 AU

Year: 17497 Days

Day: 20.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,933,316 km

• M1: 83,476 km (0.111 R)
• M2: 620,233 km (0.082 R)
• M3: 1,118,842 km (0.113 R)
• M4: 2,131,321 km (0.082 R)
• M5: 2,431,564 km (0.082 R)
• M6: 3,534,399 km (0.12 R)
• M7: 3,802,030 km (0.073 R)
• M8: 5,583,292 km (0.119 R)
• M9: 5,988,552 km (0.068 R)
• M10: 7,041,273 km (0.116 R)
• M11: 7,322,816 km (0.101 R)
• M12: 7,758,894 km (0.071 R)
• M13: 8,008,722 km (0.09 R)
• M14: 9,621,537 km (0.062 R)
• M15: 10,204,220 km (0.095 R)
• M16: 13,836,606 km (0.097 R)
• M17: 14,130,267 km (0.104 R)
• M18: 15,346,647 km (0.072 R)
• M19: 16,466,986 km (0.118 R)
• M20: 17,555,161 km (0.1 R)
• M21: 22,389,266 km (0.104 R)
• M22: 24,462,992 km (0.101 R)
• M23: 24,892,487 km (0.105 R)
• M24: 30,077,998 km (0.104 R)
• M25: 32,082,610 km (0.052 R)
• M26: 32,597,226 km (0.086 R)
• M27: 34,442,217 km (0.086 R)
• M28: 37,338,432 km (0.082 R)
• M29: 38,773,075 km (0.112 R)
• M30: 40,842,612 km (0.089 R)
• M31: 45,361,814 km (0.118 R)
• M32: 49,004,522 km (0.064 R)
• M33: 59,920,530 km (0.119 R)
• M34: 67,821,691 km (0.088 R)
• M35: 68,669,312 km (0.082 R)
• M36: 74,801,179 km (0.042 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: 204 - 10,348 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit