🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.9

Radius: 10.7

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.65 AU - 1.01 AU

Year: 496 Days

Day: 14.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,710,804 km

• M1: 133,142 km (0.097 R)
• M2: 639,531 km (0.103 R)
• M3: 996,322 km (0.119 R)
• M4: 1,370,167 km (0.118 R)
• M5: 2,275,832 km (0.088 R)
• M6: 2,801,071 km (0.092 R)
• M7: 3,739,797 km (0.086 R)
• M8: 4,262,492 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703

Radius: 12.4

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.84 AU - 1.02 AU

Year: 588 Days

Day: 12.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,710,804 km

• M1: 154,385 km (0.052 R)
• M2: 665,860 km (0.086 R)
• M3: 1,103,883 km (0.094 R)
• M4: 1,515,277 km (0.031 R)
• M5: 2,496,040 km (0.112 R)
• M6: 3,321,970 km (0.052 R)
• M7: 3,806,219 km (0.054 R)
• M8: 4,367,510 km (0.105 R)
• M9: 5,167,559 km (0.114 R)
• M10: 6,119,899 km (0.109 R)
• M11: 6,688,521 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.3

Radius: 13.7

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.78 AU - 1.22 AU

Year: 656 Days

Day: 12.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,710,804 km

• M1: 170,542 km (0.117 R)
• M2: 704,905 km (0.11 R)
• M3: 1,281,007 km (0.114 R)
• M4: 1,727,706 km (0.057 R)
• M5: 2,359,607 km (0.036 R)
• M6: 3,034,892 km (0.117 R)
• M7: 3,483,536 km (0.06 R)
• M8: 4,630,204 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638

Radius: 9.4

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.98 AU - 1.62 AU

Year: 972 Days

Day: 9.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,710,804 km

• M1: 117,584 km (0.094 R)
• M2: 478,115 km (0.09 R)
• M3: 851,960 km (0.032 R)
• M4: 1,324,988 km (0.113 R)
• M5: 1,717,832 km (0.108 R)
• M6: 2,095,268 km (0.118 R)
• M7: 2,681,093 km (0.056 R)
• M8: 3,344,111 km (0.089 R)
• M9: 4,226,888 km (0.112 R)
• M10: 4,794,462 km (0.051 R)
• M11: 5,238,469 km (0.032 R)
• M12: 5,689,506 km (0.089 R)
• M13: 6,123,938 km (0.114 R)
• M14: 6,647,232 km (0.073 R)
• M15: 7,610,044 km (0.099 R)
• M16: 8,852,155 km (0.112 R)
• M17: 9,182,916 km (0.046 R)
• M18: 9,521,755 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.7

Radius: 11.3

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.42 AU - 1.54 AU

Year: 1181 Days

Day: 7.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 68,710,804 km

• M1: 140,472 km (0.061 R)
• M2: 612,753 km (0.046 R)
• M3: 1,201,420 km (0.075 R)
• M4: 1,955,095 km (0.049 R)
• M5: 2,719,390 km (0.115 R)
• M6: 4,139,373 km (0.116 R)
• M7: 4,721,010 km (0.105 R)
• M8: 5,460,921 km (0.096 R)
• M9: 6,093,570 km (0.119 R)
• M10: 6,533,986 km (0.082 R)
• M11: 6,946,128 km (0.07 R)
• M12: 8,513,166 km (0.067 R)
• M13: 9,857,901 km (0.069 R)
• M14: 10,336,315 km (0.073 R)
• M15: 11,478,046 km (0.073 R)
• M16: 11,864,906 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.3

Radius: 11.4

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.74 AU - 2.82 AU

Year: 2258 Days

Day: 5.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,710,804 km

• M1: 141,819 km (0.091 R)
• M2: 773,870 km (0.119 R)
• M3: 1,231,490 km (0.053 R)
• M4: 1,986,061 km (0.113 R)
• M5: 3,026,814 km (0.038 R)
• M6: 3,495,205 km (0.061 R)
• M7: 3,878,026 km (0.093 R)
• M8: 4,830,515 km (0.093 R)
• M9: 5,893,408 km (0.108 R)
• M10: 6,417,749 km (0.063 R)
• M11: 7,217,648 km (0.108 R)
• M12: 7,723,888 km (0.118 R)
• M13: 8,452,429 km (0.039 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.6

Radius: 8.4

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.3 AU - 2.48 AU

Year: 2424 Days

Day: 5.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,710,804 km

• M1: 104,419 km (0.111 R)
• M2: 404,812 km (0.049 R)
• M3: 674,387 km (0.065 R)
• M4: 1,027,887 km (0.095 R)
• M5: 1,396,197 km (0.11 R)
• M6: 1,872,816 km (0.078 R)
• M7: 2,143,887 km (0.114 R)
• M8: 2,506,662 km (0.104 R)
• M9: 2,837,572 km (0.077 R)
• M10: 3,104,754 km (0.089 R)
• M11: 3,388,841 km (0.028 R)
• M12: 3,830,005 km (0.079 R)
• M13: 4,157,474 km (0.079 R)
• M14: 4,603,126 km (0.106 R)
• M15: 5,499,068 km (0.108 R)
• M16: 5,798,713 km (0.091 R)
• M17: 6,894,816 km (0.062 R)
• M18: 7,689,031 km (0.051 R)
• M19: 7,976,708 km (0.063 R)
• M20: 8,391,543 km (0.102 R)
• M21: 9,135,942 km (0.094 R)
• M22: 9,557,210 km (0.094 R)
• M23: 12,480,202 km (0.096 R)
• M24: 12,757,856 km (0.104 R)

Asteroid Belt

Center: 2.99 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248

Radius: 9.8

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.13 AU - 4.03 AU

Year: 4444 Days

Day: 6.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,710,804 km

• M1: 122,521 km (0.105 R)
• M2: 477,516 km (0.12 R)
• M3: 813,214 km (0.088 R)
• M4: 2,187,719 km (0.042 R)
• M5: 3,393,478 km (0.092 R)
• M6: 5,208,250 km (0.044 R)
• M7: 5,831,923 km (0.117 R)
• M8: 6,476,840 km (0.109 R)
• M9: 7,049,949 km (0.113 R)
• M10: 7,687,535 km (0.078 R)
• M11: 8,363,269 km (0.111 R)
• M12: 8,698,667 km (0.118 R)
• M13: 10,244,911 km (0.034 R)
• M14: 11,508,863 km (0.036 R)
• M15: 12,264,033 km (0.117 R)
• M16: 12,697,718 km (0.066 R)
• M17: 16,596,238 km (0.09 R)
• M18: 17,073,455 km (0.109 R)
• M19: 17,559,948 km (0.085 R)
• M20: 18,390,964 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 993.7

Radius: 7.2

Gravity: 19.17 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 6.63 AU - 8.43 AU

Year: 13555 Days

Day: 16.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,710,804 km

• M1: 89,609 km (0.076 R)
• M2: 537,655 km (0.085 R)
• M3: 845,527 km (0.08 R)
• M4: 1,395,898 km (0.038 R)
• M5: 1,954,197 km (0.031 R)
• M6: 2,474,648 km (0.059 R)
• M7: 3,397,218 km (0.073 R)
• M8: 4,242,296 km (0.088 R)
• M9: 4,697,373 km (0.076 R)
• M10: 6,300,165 km (0.077 R)
• M11: 6,549,694 km (0.12 R)
• M12: 7,475,555 km (0.099 R)
• M13: 8,385,709 km (0.083 R)
• M14: 9,584,137 km (0.111 R)
• M15: 10,139,295 km (0.05 R)
• M16: 11,933,422 km (0.079 R)
• M17: 12,251,916 km (0.077 R)
• M18: 12,839,237 km (0.112 R)
• M19: 16,685,099 km (0.097 R)
• M20: 17,981,963 km (0.033 R)
• M21: 18,485,061 km (0.071 R)
• M22: 20,774,806 km (0.065 R)
• M23: 24,758,896 km (0.07 R)
• M24: 25,696,875 km (0.108 R)
• M25: 27,754,594 km (0.106 R)
• M26: 29,224,243 km (0.084 R)
• M27: 29,454,923 km (0.12 R)
• M28: 30,864,285 km (0.072 R)
• M29: 43,945,123 km (0.094 R)
• M30: 51,770,886 km (0.103 R)
• M31: 58,443,101 km (0.105 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 577.3

Radius: 6.5

Gravity: 13.66 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 7.17 AU - 11.49 AU

Year: 18695 Days

Day: 18.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,710,804 km

• M1: 81,232 km (0.11 R)
• M2: 341,382 km (0.069 R)
• M3: 629,807 km (0.104 R)
• M4: 862,581 km (0.108 R)
• M5: 1,446,761 km (0.113 R)
• M6: 1,686,267 km (0.105 R)
• M7: 1,933,852 km (0.112 R)
• M8: 2,778,332 km (0.108 R)
• M9: 3,048,655 km (0.057 R)
• M10: 5,652,406 km (0.109 R)
• M11: 6,981,284 km (0.108 R)
• M12: 7,862,116 km (0.101 R)
• M13: 8,972,132 km (0.116 R)
• M14: 9,955,140 km (0.092 R)
• M15: 10,298,317 km (0.106 R)
• M16: 12,068,958 km (0.071 R)
• M17: 14,537,323 km (0.061 R)
• M18: 15,812,196 km (0.114 R)
• M19: 17,078,691 km (0.112 R)
• M20: 18,928,319 km (0.063 R)
• M21: 19,811,695 km (0.118 R)
• M22: 20,082,018 km (0.067 R)
• M23: 21,375,890 km (0.04 R)
• M24: 23,020,719 km (0.099 R)
• M25: 28,230,913 km (0.11 R)
• M26: 28,688,084 km (0.097 R)
• M27: 29,266,280 km (0.107 R)
• M28: 44,345,297 km (0.063 R)
• M29: 45,118,269 km (0.045 R)
• M30: 46,690,991 km (0.052 R)
• M31: 48,299,917 km (0.079 R)
• M32: 49,945,493 km (0.11 R)
• M33: 52,311,533 km (0.102 R)
• M34: 58,182,352 km (0.084 R)
• M35: 59,668,906 km (0.116 R)
• M36: 63,887,117 km (0.084 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 237 - 13,645 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit