🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.1

Radius: 14.4

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.65 AU - 0.89 AU

Year: 475 Days

Day: 8.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 114 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,395,836 km

• M1: 179,218 km (0.048 R)
• M2: 707,448 km (0.063 R)
• M3: 1,254,677 km (0.097 R)
• M4: 1,746,705 km (0.08 R)
• M5: 2,205,073 km (0.077 R)
• M6: 2,814,834 km (0.071 R)
• M7: 3,643,755 km (0.112 R)
• M8: 4,296,600 km (0.083 R)
• M9: 4,981,459 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.2

Radius: 10.1

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.72 AU - 0.94 AU

Year: 532 Days

Day: 10.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,395,836 km

• M1: 126,111 km (0.117 R)
• M2: 589,864 km (0.079 R)
• M3: 990,787 km (0.094 R)
• M4: 1,442,423 km (0.111 R)
• M5: 2,373,520 km (0.116 R)
• M6: 2,717,296 km (0.063 R)
• M7: 3,388,541 km (0.111 R)
• M8: 4,555,255 km (0.098 R)
• M9: 4,983,255 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.8

Radius: 13.6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.73 AU - 1.01 AU

Year: 570 Days

Day: 11.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 41,395,836 km

• M1: 169,195 km (0.04 R)
• M2: 769,980 km (0.119 R)
• M3: 1,758,074 km (0.047 R)
• M4: 2,743,326 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.8

Radius: 14.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.46 AU - 1.68 AU

Year: 1383 Days

Day: 9.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,395,836 km

• M1: 175,329 km (0.098 R)
• M2: 650,152 km (0.066 R)
• M3: 1,219,073 km (0.118 R)
• M4: 1,781,860 km (0.113 R)
• M5: 2,683,038 km (0.093 R)
• M6: 3,530,809 km (0.066 R)
• M7: 4,139,672 km (0.094 R)
• M8: 4,633,345 km (0.044 R)
• M9: 7,172,171 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976

Radius: 13.6

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.16 AU - 2.5 AU

Year: 2500 Days

Day: 6.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,395,836 km

• M1: 169,195 km (0.044 R)
• M2: 596,447 km (0.047 R)
• M3: 2,416,454 km (0.101 R)
• M4: 2,986,123 km (0.077 R)
• M5: 3,682,950 km (0.066 R)
• M6: 4,965,602 km (0.087 R)
• M7: 6,082,201 km (0.11 R)
• M8: 7,175,611 km (0.1 R)
• M9: 7,673,772 km (0.112 R)
• M10: 8,362,521 km (0.108 R)
• M11: 9,020,901 km (0.113 R)
• M12: 9,676,289 km (0.118 R)
• M13: 10,441,632 km (0.074 R)
• M14: 10,879,655 km (0.106 R)
• M15: 18,898,549 km (0.057 R)
• M16: 20,217,404 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.7

Radius: 12.6

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.84 AU - 4.64 AU

Year: 6137 Days

Day: 12.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 41,395,836 km

• M1: 157,078 km (0.071 R)
• M2: 759,359 km (0.083 R)
• M3: 1,171,351 km (0.085 R)
• M4: 1,789,490 km (0.107 R)
• M5: 2,434,257 km (0.097 R)
• M6: 3,495,953 km (0.054 R)
• M7: 4,191,882 km (0.096 R)
• M8: 4,586,072 km (0.086 R)
• M9: 6,043,006 km (0.103 R)
• M10: 6,811,191 km (0.073 R)
• M11: 9,303,342 km (0.082 R)
• M12: 9,935,393 km (0.045 R)
• M13: 10,506,109 km (0.113 R)
• M14: 11,379,611 km (0.072 R)
• M15: 11,858,474 km (0.049 R)
• M16: 12,400,766 km (0.085 R)
• M17: 14,237,229 km (0.103 R)
• M18: 16,733,719 km (0.118 R)
• M19: 19,988,370 km (0.105 R)
• M20: 21,256,810 km (0.042 R)
• M21: 24,345,707 km (0.088 R)
• M22: 25,061,682 km (0.119 R)
• M23: 26,203,413 km (0.118 R)
• M24: 27,636,112 km (0.06 R)
• M25: 29,746,789 km (0.04 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 362.4

Radius: 6.1

Gravity: 9.74 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.75 AU - 6.51 AU

Year: 10668 Days

Day: 20.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 41,395,836 km

• M1: 75,846 km (0.051 R)
• M2: 281,394 km (0.044 R)
• M3: 500,255 km (0.06 R)
• M4: 714,779 km (0.062 R)
• M5: 1,040,902 km (0.118 R)
• M6: 1,314,666 km (0.072 R)
• M7: 1,663,678 km (0.07 R)
• M8: 2,223,473 km (0.102 R)
• M9: 2,528,054 km (0.061 R)
• M10: 2,880,657 km (0.062 R)
• M11: 3,757,300 km (0.054 R)
• M12: 4,085,667 km (0.105 R)
• M13: 4,742,103 km (0.065 R)
• M14: 5,125,821 km (0.11 R)
• M15: 6,090,578 km (0.071 R)
• M16: 6,760,926 km (0.086 R)
• M17: 7,019,880 km (0.118 R)
• M18: 9,611,514 km (0.038 R)
• M19: 10,274,382 km (0.096 R)
• M20: 10,616,961 km (0.077 R)
• M21: 11,017,883 km (0.085 R)
• M22: 12,835,049 km (0.091 R)
• M23: 13,638,389 km (0.084 R)
• M24: 14,353,018 km (0.11 R)
• M25: 17,740,662 km (0.114 R)
• M26: 22,107,723 km (0.064 R)
• M27: 22,761,166 km (0.091 R)
• M28: 23,259,776 km (0.089 R)
• M29: 29,234,117 km (0.091 R)
• M30: 29,625,914 km (0.072 R)
• M31: 34,604,680 km (0.105 R)
• M32: 36,834,137 km (0.084 R)
• M33: 38,685,261 km (0.081 R)
• M34: 39,873,068 km (0.113 R)
• M35: 40,355,073 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 383.9

Radius: 6

Gravity: 10.66 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.12 AU - 7.18 AU

Year: 10721 Days

Day: 23.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,395,836 km

• M1: 74,649 km (0.112 R)
• M2: 281,244 km (0.117 R)
• M3: 775,964 km (0.064 R)
• M4: 1,329,626 km (0.107 R)
• M5: 1,684,472 km (0.106 R)
• M6: 2,100,504 km (0.066 R)
• M7: 3,291,602 km (0.099 R)
• M8: 3,691,327 km (0.1 R)
• M9: 6,509,153 km (0.061 R)
• M10: 8,518,103 km (0.053 R)
• M11: 8,778,702 km (0.111 R)
• M12: 10,755,040 km (0.06 R)
• M13: 11,739,543 km (0.101 R)
• M14: 13,886,422 km (0.08 R)
• M15: 14,863,895 km (0.118 R)
• M16: 18,792,485 km (0.093 R)
• M17: 19,458,345 km (0.114 R)
• M18: 21,630,207 km (0.118 R)
• M19: 22,608,726 km (0.098 R)
• M20: 30,197,826 km (0.054 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 359 - 14,749 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit