🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.9

Radius: 9.8

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.68 AU - 1.1 AU

Year: 580 Days

Day: 6.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,644,381 km

• M1: 121,922 km (0.088 R)
• M2: 433,385 km (0.118 R)
• M3: 844,630 km (0.101 R)
• M4: 1,290,880 km (0.098 R)
• M5: 1,634,058 km (0.118 R)
• M6: 2,279,722 km (0.101 R)
• M7: 2,624,695 km (0.111 R)
• M8: 3,135,123 km (0.107 R)
• M9: 5,486,502 km (0.109 R)
• M10: 6,073,225 km (0.049 R)
• M11: 6,401,742 km (0.05 R)
• M12: 6,823,757 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.7

Radius: 13.2

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.86 AU - 1.1 AU

Year: 670 Days

Day: 6.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,644,381 km

• M1: 164,558 km (0.085 R)
• M2: 668,702 km (0.089 R)
• M3: 1,312,422 km (0.102 R)
• M4: 1,840,802 km (0.089 R)
• M5: 2,341,805 km (0.09 R)
• M6: 3,391,833 km (0.072 R)
• M7: 3,882,962 km (0.096 R)
• M8: 4,325,772 km (0.12 R)
• M9: 5,842,395 km (0.098 R)
• M10: 6,895,415 km (0.099 R)
• M11: 7,571,896 km (0.099 R)
• M12: 8,366,710 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563

Radius: 8.7

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.05 AU - 1.37 AU

Year: 919 Days

Day: 10.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,644,381 km

• M1: 108,159 km (0.07 R)
• M2: 385,215 km (0.098 R)
• M3: 673,490 km (0.075 R)
• M4: 1,076,357 km (0.101 R)
• M5: 1,378,395 km (0.087 R)
• M6: 1,720,226 km (0.103 R)
• M7: 2,367,087 km (0.112 R)
• M8: 2,874,074 km (0.08 R)
• M9: 3,382,557 km (0.038 R)
• M10: 3,724,538 km (0.037 R)
• M11: 4,768,133 km (0.112 R)
• M12: 5,107,271 km (0.117 R)
• M13: 5,754,432 km (0.097 R)
• M14: 6,960,639 km (0.115 R)
• M15: 7,731,816 km (0.1 R)
• M16: 8,125,558 km (0.083 R)
• M17: 8,404,109 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.7

Radius: 11.6

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.28 AU - 1.56 AU

Year: 1168 Days

Day: 12.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,644,381 km

• M1: 144,212 km (0.047 R)
• M2: 567,574 km (0.119 R)
• M3: 958,922 km (0.102 R)
• M4: 1,437,935 km (0.106 R)
• M5: 2,064,750 km (0.115 R)
• M6: 2,813,786 km (0.055 R)
• M7: 3,687,887 km (0.119 R)
• M8: 5,946,964 km (0.076 R)
• M9: 7,774,003 km (0.114 R)
• M10: 8,487,136 km (0.084 R)
• M11: 9,761,859 km (0.119 R)
• M12: 10,493,991 km (0.103 R)
• M13: 11,748,220 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.7

Radius: 12.2

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.72 AU - 2.3 AU

Year: 1967 Days

Day: 10.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,644,381 km

• M1: 151,692 km (0.051 R)
• M2: 544,387 km (0.086 R)
• M3: 1,588,281 km (0.043 R)
• M4: 2,842,210 km (0.095 R)
• M5: 3,412,926 km (0.111 R)
• M6: 4,268,476 km (0.111 R)
• M7: 4,980,263 km (0.111 R)
• M8: 5,901,636 km (0.086 R)
• M9: 6,545,056 km (0.051 R)
• M10: 8,501,049 km (0.099 R)
• M11: 9,784,299 km (0.102 R)
• M12: 10,820,115 km (0.105 R)
• M13: 12,288,867 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.1

Radius: 8.8

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.08 AU - 2.82 AU

Year: 2647 Days

Day: 7.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,644,381 km

• M1: 110,104 km (0.062 R)
• M2: 424,110 km (0.108 R)
• M3: 879,336 km (0.078 R)
• M4: 1,159,234 km (0.109 R)
• M5: 1,441,824 km (0.077 R)
• M6: 2,306,201 km (0.026 R)
• M7: 2,700,541 km (0.047 R)
• M8: 3,205,882 km (0.061 R)
• M9: 3,680,108 km (0.078 R)
• M10: 4,220,605 km (0.067 R)
• M11: 5,581,497 km (0.109 R)
• M12: 6,429,118 km (0.04 R)
• M13: 6,983,229 km (0.102 R)
• M14: 7,449,076 km (0.108 R)
• M15: 8,154,879 km (0.054 R)
• M16: 10,279,917 km (0.096 R)
• M17: 10,806,501 km (0.104 R)
• M18: 12,077,784 km (0.103 R)
• M19: 12,921,366 km (0.093 R)
• M20: 13,446,006 km (0.116 R)
• M21: 13,803,545 km (0.118 R)
• M22: 15,934,716 km (0.07 R)
• M23: 16,284,925 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 538.3

Radius: 7.6

Gravity: 9.32 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 8.57 AU - 10.95 AU

Year: 21047 Days

Day: 21.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,644,381 km

• M1: 135,984 km (0.082 R)
• M2: 632,500 km (0.098 R)
• M3: 1,148,463 km (0.113 R)
• M4: 1,809,536 km (0.101 R)
• M5: 2,405,534 km (0.083 R)
• M6: 3,258,690 km (0.091 R)
• M7: 4,842,932 km (0.118 R)
• M8: 8,682,361 km (0.064 R)
• M9: 16,001,587 km (0.071 R)
• M10: 19,743,927 km (0.118 R)
• M11: 23,515,738 km (0.104 R)
• M12: 31,566,497 km (0.067 R)
• M13: 33,087,010 km (0.071 R)
• M14: 34,259,109 km (0.081 R)
• M15: 36,000,428 km (0.081 R)
• M16: 39,658,695 km (0.036 R)
• M17: 42,788,731 km (0.114 R)
• M18: 45,919,066 km (0.098 R)
• M19: 50,042,582 km (0.107 R)
• M20: 52,807,300 km (0.044 R)
• M21: 59,587,225 km (0.068 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 13,372 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit