🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.7

Radius: 11.8

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.78 AU - 0.82 AU

Year: 494 Days

Day: 5.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 26,375,866 km

• M1: 147,055 km (0.098 R)
• M2: 539,151 km (0.075 R)
• M3: 993,779 km (0.108 R)
• M4: 1,579,006 km (0.079 R)
• M5: 1,949,559 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.5

Radius: 14.3

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.75 AU - 0.85 AU

Year: 494 Days

Day: 8.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,375,866 km

• M1: 177,872 km (0.11 R)
• M2: 641,924 km (0.091 R)
• M3: 1,133,204 km (0.057 R)
• M4: 1,733,989 km (0.109 R)
• M5: 2,755,742 km (0.06 R)
• M6: 3,818,635 km (0.116 R)
• M7: 4,538,201 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.4

Radius: 8.5

Gravity: 12.89 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.31 AU - 1.39 AU

Year: 1083 Days

Day: 8.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 26,375,866 km

• M1: 105,915 km (0.101 R)
• M2: 394,340 km (0.085 R)
• M3: 726,298 km (0.116 R)
• M4: 1,036,713 km (0.081 R)
• M5: 1,363,136 km (0.046 R)
• M6: 1,720,076 km (0.066 R)
• M7: 2,239,480 km (0.095 R)
• M8: 2,701,438 km (0.092 R)
• M9: 4,137,129 km (0.101 R)
• M10: 4,476,417 km (0.104 R)
• M11: 5,956,538 km (0.117 R)
• M12: 7,067,003 km (0.097 R)
• M13: 7,527,017 km (0.111 R)
• M14: 8,337,987 km (0.066 R)
• M15: 9,785,795 km (0.103 R)
• M16: 10,100,848 km (0.115 R)
• M17: 11,532,949 km (0.062 R)
• M18: 11,991,466 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.3

Radius: 10.3

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.19 AU - 1.55 AU

Year: 1107 Days

Day: 10.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 26,375,866 km

• M1: 128,205 km (0.06 R)
• M2: 496,964 km (0.107 R)
• M3: 1,051,523 km (0.029 R)
• M4: 1,475,185 km (0.06 R)
• M5: 2,001,320 km (0.08 R)
• M6: 2,548,699 km (0.101 R)
• M7: 3,107,447 km (0.099 R)
• M8: 4,451,733 km (0.119 R)
• M9: 4,904,566 km (0.051 R)
• M10: 5,991,694 km (0.112 R)
• M11: 7,437,707 km (0.039 R)
• M12: 7,806,166 km (0.115 R)
• M13: 8,297,895 km (0.084 R)
• M14: 8,956,125 km (0.114 R)
• M15: 9,679,730 km (0.03 R)
• M16: 10,441,782 km (0.103 R)
• M17: 12,013,756 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17

Radius: 10.8

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.82 AU - 2.36 AU

Year: 2086 Days

Day: 11.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 26,375,866 km

• M1: 149,747 km (0.025 R)
• M2: 643,720 km (0.109 R)
• M3: 1,029,383 km (0.094 R)
• M4: 1,393,953 km (0.101 R)
• M5: 2,647,882 km (0.095 R)
• M6: 4,512,919 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.7

Radius: 14.8

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.57 AU - 2.63 AU

Year: 2894 Days

Day: 5.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 26,375,866 km

• M1: 193,280 km (0.041 R)
• M2: 674,238 km (0.092 R)
• M3: 1,212,042 km (0.086 R)
• M4: 1,905,578 km (0.113 R)
• M5: 2,478,388 km (0.074 R)
• M6: 3,008,413 km (0.048 R)
• M7: 3,575,389 km (0.078 R)
• M8: 5,801,705 km (0.093 R)
• M9: 6,568,095 km (0.086 R)
• M10: 14,813,480 km (0.11 R)
• M11: 15,439,697 km (0.092 R)
• M12: 15,920,804 km (0.059 R)
• M13: 16,522,486 km (0.118 R)
• M14: 17,597,646 km (0.112 R)
• M15: 18,598,606 km (0.053 R)
• M16: 22,369,070 km (0.083 R)
• M17: 23,055,126 km (0.11 R)
• M18: 23,755,244 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.2

Radius: 8.4

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.18 AU - 3.08 AU

Year: 2944 Days

Day: 10.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 26,375,866 km

• M1: 116,088 km (0.033 R)
• M2: 426,055 km (0.12 R)
• M3: 696,677 km (0.053 R)
• M4: 1,025,793 km (0.098 R)
• M5: 1,353,861 km (0.049 R)
• M6: 1,685,669 km (0.044 R)
• M7: 1,985,014 km (0.087 R)
• M8: 3,917,071 km (0.055 R)
• M9: 4,217,463 km (0.085 R)
• M10: 5,047,881 km (0.071 R)
• M11: 5,879,795 km (0.082 R)
• M12: 7,088,246 km (0.087 R)
• M13: 7,658,214 km (0.039 R)
• M14: 8,855,745 km (0.043 R)
• M15: 9,624,379 km (0.11 R)
• M16: 9,988,201 km (0.05 R)
• M17: 10,859,758 km (0.066 R)
• M18: 13,281,897 km (0.049 R)
• M19: 14,571,132 km (0.084 R)
• M20: 16,144,453 km (0.043 R)
• M21: 17,449,993 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.6

Radius: 9

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.67 AU - 4.27 AU

Year: 4462 Days

Day: 7.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 26,375,866 km

• M1: 113,694 km (0.09 R)
• M2: 409,150 km (0.11 R)
• M3: 948,750 km (0.066 R)
• M4: 1,277,267 km (0.093 R)
• M5: 1,563,747 km (0.116 R)
• M6: 1,893,610 km (0.06 R)
• M7: 2,450,264 km (0.111 R)
• M8: 3,587,507 km (0.053 R)
• M9: 4,017,152 km (0.064 R)
• M10: 4,704,703 km (0.044 R)
• M11: 5,491,738 km (0.12 R)
• M12: 6,940,743 km (0.113 R)
• M13: 9,907,717 km (0.047 R)
• M14: 10,900,748 km (0.057 R)
• M15: 11,919,809 km (0.107 R)
• M16: 14,321,752 km (0.081 R)
• M17: 15,128,384 km (0.098 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.4

Radius: 13.1

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.07 AU - 6.21 AU

Year: 8044 Days

Day: 13 Hours

Environment

Temp: -226 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,375,866 km

• M1: 162,912 km (0.108 R)
• M2: 602,730 km (0.101 R)
• M3: 3,619,670 km (0.116 R)
• M4: 4,595,796 km (0.108 R)
• M5: 5,491,887 km (0.04 R)
• M6: 6,230,602 km (0.119 R)
• M7: 7,664,797 km (0.101 R)
• M8: 10,069,582 km (0.058 R)
• M9: 10,656,305 km (0.035 R)
• M10: 15,755,049 km (0.108 R)
• M11: 18,209,651 km (0.093 R)
• M12: 19,145,087 km (0.069 R)
• M13: 20,177,910 km (0.099 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 18,980 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit