🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.5

Radius: 13.3

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.73 AU - 0.79 AU

Year: 457 Days

Day: 7.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,072,964 km

• M1: 165,605 km (0.036 R)
• M2: 718,818 km (0.103 R)
• M3: 1,206,208 km (0.09 R)
• M4: 1,883,886 km (0.111 R)
• M5: 2,389,078 km (0.068 R)
• M6: 3,052,245 km (0.063 R)
• M7: 3,939,810 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.6

Radius: 11.2

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.77 AU - 1.19 AU

Year: 670 Days

Day: 6.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,072,964 km

• M1: 140,622 km (0.03 R)
• M2: 707,748 km (0.067 R)
• M3: 1,240,914 km (0.067 R)
• M4: 2,644,292 km (0.105 R)
• M5: 2,993,902 km (0.109 R)
• M6: 3,762,237 km (0.109 R)
• M7: 4,193,528 km (0.104 R)
• M8: 4,716,222 km (0.084 R)
• M9: 5,078,100 km (0.12 R)
• M10: 5,523,901 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.9

Radius: 9.3

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.37 AU - 1.75 AU

Year: 1345 Days

Day: 8.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,072,964 km

• M1: 115,639 km (0.099 R)
• M2: 499,058 km (0.063 R)
• M3: 1,216,829 km (0.114 R)
• M4: 2,362,749 km (0.043 R)
• M5: 2,842,060 km (0.094 R)
• M6: 3,239,392 km (0.103 R)
• M7: 3,642,409 km (0.04 R)
• M8: 4,301,088 km (0.065 R)
• M9: 6,477,737 km (0.089 R)
• M10: 7,095,427 km (0.111 R)
• M11: 8,811,315 km (0.08 R)
• M12: 9,995,531 km (0.113 R)
• M13: 10,690,563 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.7

Radius: 11.1

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.48 AU - 1.9 AU

Year: 1516 Days

Day: 6.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,072,964 km

• M1: 138,079 km (0.035 R)
• M2: 577,149 km (0.084 R)
• M3: 1,078,900 km (0.112 R)
• M4: 1,456,934 km (0.092 R)
• M5: 2,407,479 km (0.05 R)
• M6: 2,888,735 km (0.057 R)
• M7: 3,479,497 km (0.054 R)
• M8: 4,063,078 km (0.081 R)
• M9: 4,635,739 km (0.117 R)
• M10: 5,510,438 km (0.062 R)
• M11: 7,985,834 km (0.069 R)
• M12: 8,371,796 km (0.109 R)
• M13: 9,759,466 km (0.054 R)
• M14: 10,137,051 km (0.114 R)
• M15: 10,788,250 km (0.08 R)
• M16: 11,817,185 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.5

Radius: 8.1

Gravity: 13.1 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.63 AU - 1.91 AU

Year: 1625 Days

Day: 10.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,072,964 km

• M1: 100,679 km (0.101 R)
• M2: 493,523 km (0.074 R)
• M3: 796,758 km (0.076 R)
• M4: 1,087,128 km (0.119 R)
• M5: 1,729,800 km (0.093 R)
• M6: 2,106,188 km (0.075 R)
• M7: 2,430,068 km (0.105 R)
• M8: 2,859,862 km (0.115 R)
• M9: 3,521,983 km (0.11 R)
• M10: 3,835,390 km (0.091 R)
• M11: 4,205,495 km (0.092 R)
• M12: 4,660,572 km (0.115 R)
• M13: 5,645,524 km (0.049 R)
• M14: 6,631,973 km (0.075 R)
• M15: 6,922,492 km (0.099 R)
• M16: 7,528,962 km (0.118 R)
• M17: 7,874,383 km (0.111 R)
• M18: 10,419,192 km (0.11 R)
• M19: 12,365,610 km (0.104 R)
• M20: 12,644,910 km (0.117 R)
• M21: 14,454,445 km (0.111 R)
• M22: 14,719,982 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.6

Radius: 9.6

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.7 AU - 1.9 AU

Year: 1667 Days

Day: 8 Hours

Environment

Temp: -202 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,072,964 km

• M1: 119,379 km (0.094 R)
• M2: 588,219 km (0.082 R)
• M3: 1,066,782 km (0.089 R)
• M4: 1,426,864 km (0.118 R)
• M5: 1,783,506 km (0.103 R)
• M6: 2,211,805 km (0.077 R)
• M7: 2,530,298 km (0.057 R)
• M8: 2,850,288 km (0.094 R)
• M9: 3,150,681 km (0.058 R)
• M10: 3,455,860 km (0.054 R)
• M11: 4,472,528 km (0.12 R)
• M12: 5,985,560 km (0.087 R)
• M13: 6,304,952 km (0.108 R)
• M14: 8,047,617 km (0.085 R)
• M15: 8,590,658 km (0.099 R)
• M16: 11,379,760 km (0.075 R)
• M17: 11,718,749 km (0.05 R)
• M18: 12,142,111 km (0.103 R)
• M19: 12,856,890 km (0.096 R)
• M20: 13,348,917 km (0.099 R)
• M21: 14,110,370 km (0.05 R)
• M22: 14,990,006 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.2

Radius: 8.3

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.63 AU - 2.09 AU

Year: 1751 Days

Day: 7.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,072,964 km

• M1: 103,223 km (0.066 R)
• M2: 579,393 km (0.11 R)
• M3: 960,269 km (0.086 R)
• M4: 1,946,567 km (0.107 R)
• M5: 2,858,666 km (0.083 R)
• M6: 4,221,353 km (0.114 R)
• M7: 5,328,826 km (0.103 R)
• M8: 6,289,992 km (0.054 R)
• M9: 7,996,156 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.2

Radius: 9.7

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.54 AU - 4.36 AU

Year: 5419 Days

Day: 14 Hours

Environment

Temp: -209 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,072,964 km

• M1: 120,725 km (0.098 R)
• M2: 446,101 km (0.116 R)
• M3: 935,286 km (0.094 R)
• M4: 1,249,591 km (0.087 R)
• M5: 1,955,543 km (0.067 R)
• M6: 2,851,635 km (0.04 R)
• M7: 3,361,315 km (0.117 R)
• M8: 4,537,603 km (0.107 R)
• M9: 5,290,230 km (0.09 R)
• M10: 6,572,134 km (0.048 R)
• M11: 7,180,847 km (0.116 R)
• M12: 10,440,136 km (0.094 R)
• M13: 11,174,811 km (0.04 R)
• M14: 12,190,730 km (0.043 R)
• M15: 15,316,279 km (0.081 R)
• M16: 16,753,017 km (0.081 R)
• M17: 17,695,483 km (0.084 R)
• M18: 18,082,194 km (0.119 R)
• M19: 18,606,534 km (0.089 R)
• M20: 24,422,451 km (0.054 R)
• M21: 27,999,785 km (0.115 R)
• M22: 30,232,682 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 945.9

Radius: 5.9

Gravity: 27.17 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.46 AU - 8.2 AU

Year: 12321 Days

Day: 21.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 70,072,964 km

• M1: 76,295 km (0.118 R)
• M2: 288,574 km (0.053 R)
• M3: 665,411 km (0.109 R)
• M4: 1,007,990 km (0.112 R)
• M5: 1,447,509 km (0.043 R)
• M6: 1,662,481 km (0.074 R)
• M7: 3,849,602 km (0.09 R)
• M8: 4,548,374 km (0.1 R)
• M9: 6,154,756 km (0.074 R)
• M10: 6,681,490 km (0.061 R)
• M11: 7,326,107 km (0.041 R)
• M12: 7,686,488 km (0.097 R)
• M13: 11,540,279 km (0.101 R)
• M14: 12,980,009 km (0.101 R)
• M15: 21,270,274 km (0.107 R)
• M16: 21,726,398 km (0.091 R)
• M17: 22,847,784 km (0.115 R)
• M18: 24,701,451 km (0.114 R)
• M19: 25,408,899 km (0.1 R)
• M20: 26,652,955 km (0.051 R)
• M21: 30,397,539 km (0.088 R)
• M22: 30,859,946 km (0.11 R)
• M23: 33,242,442 km (0.09 R)
• M24: 36,779,833 km (0.063 R)
• M25: 40,005,014 km (0.053 R)
• M26: 40,980,093 km (0.057 R)
• M27: 44,443,283 km (0.084 R)
• M28: 49,516,895 km (0.096 R)
• M29: 54,282,635 km (0.035 R)
• M30: 54,622,222 km (0.113 R)
• M31: 55,477,174 km (0.067 R)
• M32: 57,918,611 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 523.9

Radius: 4

Gravity: 32.74 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 8 AU - 11 AU

Year: 20211 Days

Day: 16.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 70,072,964 km

• M1: 77,043 km (0.094 R)
• M2: 218,263 km (0.085 R)
• M3: 444,605 km (0.099 R)
• M4: 726,447 km (0.05 R)
• M5: 2,115,613 km (0.061 R)
• M6: 2,850,737 km (0.107 R)
• M7: 3,712,870 km (0.076 R)
• M8: 9,175,436 km (0.103 R)
• M9: 11,510,210 km (0.037 R)
• M10: 15,174,759 km (0.034 R)
• M11: 16,100,471 km (0.029 R)
• M12: 16,497,204 km (0.088 R)
• M13: 21,299,296 km (0.113 R)
• M14: 24,377,871 km (0.045 R)
• M15: 24,586,111 km (0.113 R)
• M16: 33,151,786 km (0.076 R)
• M17: 33,407,448 km (0.108 R)
• M18: 36,578,026 km (0.061 R)
• M19: 38,799,704 km (0.057 R)
• M20: 39,226,058 km (0.046 R)
• M21: 46,799,151 km (0.096 R)
• M22: 47,120,786 km (0.072 R)
• M23: 50,587,866 km (0.055 R)
• M24: 54,044,325 km (0.082 R)
• M25: 58,024,526 km (0.049 R)
• M26: 66,765,380 km (0.107 R)
• M27: 69,027,898 km (0.028 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 225 - 15,331 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit