🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.9

Radius: 12.1

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.45 AU - 0.71 AU

Year: 295 Days

Day: 14.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 162.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 20,602,255 km

• M1: 150,645 km (0.113 R)
• M2: 576,999 km (0.093 R)
• M3: 983,456 km (0.03 R)
• M4: 1,399,039 km (0.108 R)
• M5: 1,876,855 km (0.052 R)
• M6: 2,309,193 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.3

Radius: 10.7

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.65 AU - 0.85 AU

Year: 433 Days

Day: 5.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,602,255 km

• M1: 133,142 km (0.112 R)
• M2: 566,826 km (0.117 R)
• M3: 1,211,593 km (0.094 R)
• M4: 2,196,994 km (0.104 R)
• M5: 3,244,030 km (0.099 R)
• M6: 4,250,823 km (0.096 R)
• M7: 5,035,315 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.9

Radius: 11.6

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.04 AU - 1.22 AU

Year: 801 Days

Day: 7.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,602,255 km

• M1: 144,212 km (0.066 R)
• M2: 722,558 km (0.118 R)
• M3: 1,124,677 km (0.076 R)
• M4: 1,505,254 km (0.079 R)
• M5: 2,018,225 km (0.118 R)
• M6: 2,382,496 km (0.072 R)
• M7: 2,802,567 km (0.074 R)
• M8: 3,922,007 km (0.105 R)
• M9: 4,324,276 km (0.079 R)
• M10: 4,820,193 km (0.1 R)
• M11: 6,519,774 km (0.096 R)
• M12: 7,371,734 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.4

Radius: 12.8

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.06 AU - 1.52 AU

Year: 977 Days

Day: 13.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 122.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,602,255 km

• M1: 159,172 km (0.066 R)
• M2: 588,518 km (0.099 R)
• M3: 1,008,140 km (0.08 R)
• M4: 1,848,132 km (0.11 R)
• M5: 3,340,371 km (0.084 R)
• M6: 4,704,703 km (0.106 R)
• M7: 6,784,114 km (0.078 R)
• M8: 7,369,042 km (0.034 R)
• M9: 7,882,013 km (0.06 R)
• M10: 10,114,611 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.1

Radius: 11.6

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.25 AU - 1.45 AU

Year: 1046 Days

Day: 9 Hours

Environment

Temp: -188 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,602,255 km

• M1: 151,842 km (0.067 R)
• M2: 512,971 km (0.119 R)
• M3: 885,320 km (0.099 R)
• M4: 1,385,575 km (0.077 R)
• M5: 1,800,261 km (0.085 R)
• M6: 2,325,499 km (0.114 R)
• M7: 2,700,690 km (0.083 R)
• M8: 3,465,285 km (0.065 R)
• M9: 5,673,798 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.7

Radius: 9

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.22 AU - 2.9 AU

Year: 2731 Days

Day: 11.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,602,255 km

• M1: 112,946 km (0.108 R)
• M2: 466,297 km (0.111 R)
• M3: 1,051,972 km (0.091 R)
• M4: 1,545,196 km (0.061 R)
• M5: 2,291,091 km (0.117 R)
• M6: 2,899,506 km (0.065 R)
• M7: 4,249,627 km (0.026 R)
• M8: 4,693,334 km (0.113 R)
• M9: 5,428,608 km (0.063 R)
• M10: 6,185,872 km (0.096 R)
• M11: 6,784,712 km (0.057 R)
• M12: 7,451,620 km (0.093 R)
• M13: 8,161,312 km (0.074 R)
• M14: 8,681,164 km (0.12 R)
• M15: 9,051,270 km (0.101 R)
• M16: 9,823,195 km (0.068 R)
• M17: 12,234,563 km (0.116 R)
• M18: 12,829,364 km (0.071 R)
• M19: 14,353,916 km (0.05 R)
• M20: 15,796,189 km (0.107 R)
• M21: 16,348,504 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.4

Radius: 8.2

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.5 AU - 2.62 AU

Year: 2731 Days

Day: 13.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,602,255 km

• M1: 102,026 km (0.063 R)
• M2: 361,428 km (0.119 R)
• M3: 1,122,283 km (0.062 R)
• M4: 1,378,993 km (0.088 R)
• M5: 2,060,262 km (0.089 R)
• M6: 2,489,907 km (0.032 R)
• M7: 4,750,630 km (0.115 R)
• M8: 5,236,225 km (0.116 R)
• M9: 9,776,071 km (0.048 R)
• M10: 11,649,336 km (0.119 R)
• M11: 13,253,923 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.6

Radius: 14.4

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.61 AU - 2.69 AU

Year: 2877 Days

Day: 10.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 20,602,255 km

• M1: 186,399 km (0.052 R)
• M2: 1,009,337 km (0.082 R)
• M3: 3,015,893 km (0.073 R)
• M4: 3,933,078 km (0.069 R)
• M5: 4,494,369 km (0.105 R)
• M6: 6,437,346 km (0.093 R)
• M7: 9,675,392 km (0.115 R)
• M8: 11,453,662 km (0.051 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.9

Radius: 11.9

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.1 AU - 4.1 AU

Year: 4555 Days

Day: 8.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 20,602,255 km

• M1: 148,850 km (0.104 R)
• M2: 524,341 km (0.114 R)
• M3: 1,028,485 km (0.111 R)
• M4: 1,550,133 km (0.053 R)
• M5: 1,978,581 km (0.1 R)
• M6: 2,605,097 km (0.091 R)
• M7: 3,080,669 km (0.112 R)
• M8: 3,506,724 km (0.071 R)
• M9: 3,926,047 km (0.048 R)
• M10: 6,519,176 km (0.057 R)
• M11: 7,156,912 km (0.061 R)
• M12: 8,096,835 km (0.117 R)
• M13: 9,616,002 km (0.101 R)
• M14: 11,364,651 km (0.067 R)
• M15: 11,748,070 km (0.068 R)
• M16: 15,020,075 km (0.105 R)
• M17: 15,658,260 km (0.096 R)
• M18: 17,238,462 km (0.104 R)
• M19: 18,458,881 km (0.117 R)
• M20: 19,191,163 km (0.095 R)
• M21: 20,012,156 km (0.025 R)
• M22: 20,643,010 km (0.11 R)
• M23: 22,315,814 km (0.106 R)
• M24: 23,842,310 km (0.092 R)
• M25: 25,764,792 km (0.068 R)
• M26: 29,016,751 km (0.081 R)

Planet 10 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.6

Radius: 8.6

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 3.14 AU - 4.3 AU

Year: 4785 Days

Day: 5.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,602,255 km

• M1: 106,962 km (0.087 R)
• M2: 891,304 km (0.096 R)
• M3: 1,817,315 km (0.114 R)
• M4: 2,303,508 km (0.114 R)
• M5: 3,764,481 km (0.074 R)
• M6: 6,723,377 km (0.063 R)
• M7: 12,385,208 km (0.057 R)
• M8: 14,073,868 km (0.067 R)
• M9: 17,568,325 km (0.102 R)
• M10: 17,846,128 km (0.104 R)
• M11: 18,353,415 km (0.036 R)
• M12: 18,870,425 km (0.031 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: 460 - 18,464 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit