🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.58 AU - 0.64 AU

Year: 175 Days

Day: 45.6 Hours

Environment

Temp: 134 °C

Axial Tilt: 25.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.88 AU - 1.3 AU

Year: 418 Days

Day: 43.8 Hours

Environment

Temp: 25 °C

Axial Tilt: 21.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 61,598,825 km

• M1: 905,366 km (0.092 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.92 AU - 2.72 AU

Year: 1297 Days

Day: 20.4 Hours

Environment

Temp: -86 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.7 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Ice Giant

Semi-Major Axis: 13.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 446.9

Radius: 5.2

Gravity: 16.53 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 10.06 AU - 16.1 AU

Year: 17365 Days

Day: 16.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 61,598,825 km

• M1: 64,776 km (0.062 R)
• M2: 476,170 km (0.086 R)
• M3: 863,329 km (0.078 R)
• M4: 1,131,409 km (0.092 R)
• M5: 1,869,375 km (0.077 R)
• M6: 2,506,961 km (0.082 R)
• M7: 2,840,564 km (0.087 R)
• M8: 3,178,207 km (0.067 R)
• M9: 3,678,612 km (0.116 R)
• M10: 4,020,742 km (0.064 R)
• M11: 4,605,670 km (0.112 R)
• M12: 5,790,934 km (0.113 R)
• M13: 6,136,056 km (0.118 R)
• M14: 7,930,034 km (0.112 R)
• M15: 9,355,402 km (0.096 R)
• M16: 10,601,104 km (0.044 R)
• M17: 11,710,372 km (0.059 R)
• M18: 12,199,706 km (0.105 R)
• M19: 14,502,466 km (0.102 R)
• M20: 15,210,064 km (0.088 R)
• M21: 16,089,251 km (0.113 R)
• M22: 19,264,466 km (0.059 R)
• M23: 20,643,609 km (0.116 R)
• M24: 24,376,823 km (0.097 R)
• M25: 27,884,295 km (0.117 R)
• M26: 29,870,656 km (0.118 R)
• M27: 30,668,012 km (0.035 R)
• M28: 31,949,468 km (0.067 R)
• M29: 34,618,742 km (0.04 R)
• M30: 37,301,780 km (0.115 R)
• M31: 42,933,392 km (0.095 R)
• M32: 43,948,264 km (0.094 R)
• M33: 52,485,216 km (0.057 R)
• M34: 57,927,437 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 577.3

Radius: 6.3

Gravity: 14.55 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 10.35 AU - 16.09 AU

Year: 17645 Days

Day: 25 Hours

Environment

Temp: -190 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 61,598,825 km

• M1: 78,389 km (0.07 R)
• M2: 476,469 km (0.025 R)
• M3: 830,567 km (0.086 R)
• M4: 1,436,738 km (0.047 R)
• M5: 1,843,495 km (0.107 R)
• M6: 2,122,644 km (0.117 R)
• M7: 2,538,825 km (0.091 R)
• M8: 3,423,248 km (0.101 R)
• M9: 3,846,760 km (0.103 R)
• M10: 4,832,161 km (0.111 R)
• M11: 5,183,417 km (0.116 R)
• M12: 5,439,229 km (0.046 R)
• M13: 11,428,230 km (0.101 R)
• M14: 11,862,363 km (0.078 R)
• M15: 12,829,513 km (0.09 R)
• M16: 14,341,798 km (0.083 R)
• M17: 15,664,393 km (0.034 R)
• M18: 21,960,369 km (0.069 R)
• M19: 22,341,993 km (0.1 R)
• M20: 24,114,429 km (0.119 R)
• M21: 25,451,385 km (0.114 R)
• M22: 26,620,642 km (0.059 R)
• M23: 30,107,768 km (0.112 R)
• M24: 32,389,136 km (0.064 R)
• M25: 34,783,151 km (0.111 R)
• M26: 35,563,004 km (0.087 R)
• M27: 36,888,591 km (0.051 R)
• M28: 37,157,568 km (0.078 R)
• M29: 38,109,459 km (0.041 R)
• M30: 41,206,733 km (0.092 R)
• M31: 43,262,807 km (0.105 R)
• M32: 44,772,698 km (0.115 R)
• M33: 46,630,404 km (0.09 R)
• M34: 55,982,216 km (0.098 R)
• M35: 59,234,474 km (0.038 R)
• M36: 61,471,261 km (0.117 R)
• M37: 61,849,444 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 405.9

Radius: 6

Gravity: 11.28 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 12.09 AU - 14.75 AU

Year: 18047 Days

Day: 15.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 61,598,825 km

• M1: 74,649 km (0.101 R)
• M2: 868,116 km (0.066 R)
• M3: 1,110,166 km (0.079 R)
• M4: 1,700,030 km (0.112 R)
• M5: 2,295,430 km (0.032 R)
• M6: 3,093,684 km (0.049 R)
• M7: 3,319,427 km (0.079 R)
• M8: 5,433,843 km (0.071 R)
• M9: 5,838,356 km (0.041 R)
• M10: 7,086,900 km (0.112 R)
• M11: 9,991,043 km (0.061 R)
• M12: 10,824,752 km (0.105 R)
• M13: 12,315,794 km (0.074 R)
• M14: 12,503,540 km (0.083 R)
• M15: 13,013,369 km (0.107 R)
• M16: 13,669,954 km (0.111 R)
• M17: 15,480,388 km (0.109 R)
• M18: 15,993,957 km (0.106 R)
• M19: 16,217,456 km (0.117 R)
• M20: 17,366,518 km (0.119 R)
• M21: 17,602,583 km (0.096 R)
• M22: 21,861,036 km (0.055 R)
• M23: 22,321,199 km (0.062 R)
• M24: 27,179,390 km (0.081 R)
• M25: 30,135,893 km (0.101 R)
• M26: 32,103,254 km (0.098 R)
• M27: 32,340,217 km (0.037 R)
• M28: 36,678,256 km (0.102 R)
• M29: 38,650,405 km (0.11 R)
• M30: 39,867,085 km (0.116 R)
• M31: 42,376,738 km (0.096 R)
• M32: 43,092,115 km (0.082 R)
• M33: 46,034,107 km (0.115 R)
• M34: 47,554,171 km (0.105 R)
• M35: 52,972,456 km (0.099 R)
• M36: 56,172,355 km (0.09 R)
• M37: 57,907,241 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 159.8

Radius: 7.9

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 17.88 AU - 19.92 AU

Year: 30162 Days

Day: 16.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,598,825 km

• M1: 103,821 km (0.038 R)
• M2: 462,856 km (0.079 R)
• M3: 866,172 km (0.044 R)
• M4: 2,943,787 km (0.119 R)
• M5: 3,580,625 km (0.117 R)
• M6: 4,819,445 km (0.088 R)
• M7: 6,857,267 km (0.068 R)
• M8: 8,596,941 km (0.099 R)
• M9: 10,898,803 km (0.077 R)
• M10: 11,427,931 km (0.105 R)
• M11: 15,041,019 km (0.097 R)
• M12: 23,826,902 km (0.087 R)
• M13: 36,810,800 km (0.116 R)
• M14: 42,872,356 km (0.101 R)
• M15: 46,903,121 km (0.101 R)
• M16: 47,831,974 km (0.11 R)
• M17: 50,046,920 km (0.078 R)
• M18: 60,863,744 km (0.032 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 413 - 14,065 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit