🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.5

Radius: 13.7

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.5 AU - 0.54 AU

Year: 254 Days

Day: 13.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 60,159,145 km

• M1: 170,542 km (0.044 R)
• M2: 638,484 km (0.082 R)
• M3: 1,310,477 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.1

Radius: 14.1

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.5 AU - 0.64 AU

Year: 292 Days

Day: 6.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 60,159,145 km

• M1: 175,329 km (0.096 R)
• M2: 817,852 km (0.088 R)
• M3: 1,343,389 km (0.089 R)
• M4: 1,897,200 km (0.074 R)
• M5: 2,433,060 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.3

Radius: 13.8

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.55 AU - 0.61 AU

Year: 300 Days

Day: 8.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,159,145 km

• M1: 172,337 km (0.118 R)
• M2: 638,633 km (0.079 R)
• M3: 1,071,121 km (0.102 R)
• M4: 1,526,347 km (0.045 R)
• M5: 2,060,262 km (0.086 R)
• M6: 2,663,440 km (0.099 R)
• M7: 3,372,086 km (0.109 R)
• M8: 4,066,519 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982

Radius: 9.4

Gravity: 11.11 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.68 AU - 1.08 AU

Year: 560 Days

Day: 6.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,159,145 km

• M1: 116,986 km (0.115 R)
• M2: 471,532 km (0.109 R)
• M3: 771,775 km (0.112 R)
• M4: 1,114,654 km (0.093 R)
• M5: 1,583,045 km (0.116 R)
• M6: 1,974,243 km (0.099 R)
• M7: 2,316,972 km (0.106 R)
• M8: 2,610,782 km (0.111 R)
• M9: 3,313,443 km (0.029 R)
• M10: 3,619,670 km (0.108 R)
• M11: 4,382,470 km (0.083 R)
• M12: 4,752,425 km (0.046 R)
• M13: 5,108,468 km (0.118 R)
• M14: 5,445,961 km (0.118 R)
• M15: 6,165,676 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.6

Radius: 11.6

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.6 AU - 1.92 AU

Year: 1584 Days

Day: 7.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,159,145 km

• M1: 144,362 km (0.098 R)
• M2: 552,764 km (0.07 R)
• M3: 953,238 km (0.115 R)
• M4: 1,473,090 km (0.061 R)
• M5: 1,906,326 km (0.076 R)
• M6: 2,802,866 km (0.091 R)
• M7: 3,251,659 km (0.106 R)
• M8: 3,889,395 km (0.068 R)
• M9: 5,215,879 km (0.1 R)
• M10: 5,875,606 km (0.073 R)
• M11: 6,412,513 km (0.114 R)
• M12: 8,045,224 km (0.102 R)
• M13: 8,832,707 km (0.046 R)
• M14: 10,041,159 km (0.083 R)
• M15: 11,468,173 km (0.097 R)
• M16: 12,347,659 km (0.101 R)
• M17: 13,645,420 km (0.104 R)
• M18: 14,457,886 km (0.076 R)
• M19: 15,121,802 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 274.5

Radius: 4.2

Gravity: 15.56 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 5.09 AU - 6.67 AU

Year: 9671 Days

Day: 20.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,159,145 km

• M1: 113,395 km (0.116 R)
• M2: 559,646 km (0.036 R)
• M3: 876,494 km (0.057 R)
• M4: 2,572,335 km (0.112 R)
• M5: 2,719,839 km (0.087 R)
• M6: 3,773,756 km (0.12 R)
• M7: 4,313,954 km (0.094 R)
• M8: 5,306,685 km (0.088 R)
• M9: 5,455,535 km (0.099 R)
• M10: 6,079,657 km (0.105 R)
• M11: 7,247,718 km (0.054 R)
• M12: 9,225,701 km (0.093 R)
• M13: 9,484,804 km (0.118 R)
• M14: 12,771,320 km (0.118 R)
• M15: 13,093,254 km (0.051 R)
• M16: 14,320,406 km (0.117 R)
• M17: 15,259,581 km (0.106 R)
• M18: 16,114,383 km (0.084 R)
• M19: 20,797,844 km (0.097 R)
• M20: 24,790,462 km (0.093 R)
• M21: 25,459,762 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 533.2

Radius: 6.8

Gravity: 11.53 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 5.98 AU - 6.96 AU

Year: 11162 Days

Day: 23.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,159,145 km

• M1: 88,562 km (0.117 R)
• M2: 338,390 km (0.027 R)
• M3: 582,085 km (0.094 R)
• M4: 798,254 km (0.03 R)
• M5: 1,158,037 km (0.069 R)
• M6: 1,946,119 km (0.074 R)
• M7: 2,683,337 km (0.109 R)
• M8: 3,025,617 km (0.036 R)
• M9: 4,604,922 km (0.061 R)
• M10: 5,128,365 km (0.025 R)
• M11: 5,725,111 km (0.119 R)
• M12: 7,500,837 km (0.117 R)
• M13: 7,751,414 km (0.056 R)
• M14: 8,181,208 km (0.115 R)
• M15: 12,211,375 km (0.095 R)
• M16: 13,515,868 km (0.106 R)
• M17: 21,875,547 km (0.107 R)
• M18: 22,473,639 km (0.106 R)
• M19: 28,155,815 km (0.085 R)
• M20: 29,376,085 km (0.086 R)
• M21: 42,512,723 km (0.074 R)
• M22: 42,910,055 km (0.069 R)
• M23: 43,309,930 km (0.091 R)
• M24: 46,879,784 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588.1

Radius: 6.9

Gravity: 12.35 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 6.93 AU - 8.95 AU

Year: 15175 Days

Day: 23.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,159,145 km

• M1: 85,869 km (0.096 R)
• M2: 305,180 km (0.119 R)
• M3: 779,255 km (0.094 R)
• M4: 1,203,814 km (0.087 R)
• M5: 1,892,862 km (0.081 R)
• M6: 3,676,816 km (0.088 R)
• M7: 4,256,508 km (0.091 R)
• M8: 5,133,601 km (0.059 R)
• M9: 5,451,197 km (0.08 R)
• M10: 14,402,984 km (0.081 R)
• M11: 15,106,991 km (0.083 R)
• M12: 15,322,562 km (0.08 R)
• M13: 20,602,768 km (0.091 R)
• M14: 20,868,155 km (0.078 R)
• M15: 24,134,026 km (0.103 R)
• M16: 24,726,284 km (0.041 R)
• M17: 28,813,597 km (0.046 R)
• M18: 29,816,950 km (0.089 R)
• M19: 35,691,509 km (0.115 R)
• M20: 36,718,498 km (0.089 R)
• M21: 49,032,348 km (0.115 R)
• M22: 57,496,146 km (0.069 R)
• M23: 58,551,709 km (0.101 R)
• M24: 58,906,406 km (0.052 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 280 - 18,254 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit