🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.61 AU - 0.67 AU

Year: 336 Days

Day: 23.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.2

Radius: 10.5

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.6 AU - 0.82 AU

Year: 392 Days

Day: 7.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,368,062 km

• M1: 131,048 km (0.111 R)
• M2: 560,842 km (0.102 R)
• M3: 891,304 km (0.118 R)
• M4: 1,248,544 km (0.095 R)
• M5: 1,681,779 km (0.11 R)
• M6: 2,155,855 km (0.108 R)
• M7: 2,857,619 km (0.052 R)
• M8: 3,217,850 km (0.039 R)
• M9: 3,561,028 km (0.063 R)
• M10: 3,992,468 km (0.114 R)
• M11: 4,417,326 km (0.085 R)
• M12: 4,784,589 km (0.114 R)
• M13: 5,218,273 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.9

Radius: 9.4

Gravity: 11.23 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.73 AU - 0.75 AU

Year: 418 Days

Day: 9.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 81.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,368,062 km

• M1: 118,033 km (0.109 R)
• M2: 474,225 km (0.037 R)
• M3: 857,345 km (0.115 R)
• M4: 1,200,972 km (0.094 R)
• M5: 1,571,974 km (0.093 R)
• M6: 1,926,521 km (0.08 R)
• M7: 2,232,000 km (0.109 R)
• M8: 2,600,460 km (0.044 R)
• M9: 3,089,346 km (0.11 R)
• M10: 3,411,280 km (0.1 R)
• M11: 3,889,245 km (0.052 R)
• M12: 4,666,556 km (0.111 R)
• M13: 5,356,801 km (0.068 R)
• M14: 5,665,271 km (0.091 R)
• M15: 6,021,913 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.6

Radius: 11.7

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.65 AU - 0.99 AU

Year: 487 Days

Day: 13.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,368,062 km

• M1: 145,559 km (0.108 R)
• M2: 548,875 km (0.099 R)
• M3: 1,037,910 km (0.072 R)
• M4: 1,605,335 km (0.085 R)
• M5: 2,064,151 km (0.037 R)
• M6: 2,440,839 km (0.116 R)
• M7: 3,110,738 km (0.06 R)
• M8: 3,533,651 km (0.094 R)
• M9: 4,349,109 km (0.083 R)
• M10: 4,927,903 km (0.085 R)
• M11: 5,820,404 km (0.108 R)
• M12: 6,371,523 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.5

Radius: 15

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.78 AU - 1.16 AU

Year: 627 Days

Day: 5.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,368,062 km

• M1: 186,549 km (0.05 R)
• M2: 709,692 km (0.056 R)
• M3: 1,287,738 km (0.09 R)
• M4: 1,774,530 km (0.085 R)
• M5: 2,288,698 km (0.091 R)
• M6: 2,882,452 km (0.092 R)
• M7: 3,554,595 km (0.093 R)
• M8: 4,179,914 km (0.084 R)
• M9: 5,076,005 km (0.062 R)
• M10: 5,620,093 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754

Radius: 8.8

Gravity: 9.74 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.42 AU - 3.08 AU

Year: 2992 Days

Day: 11.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,368,062 km

• M1: 111,002 km (0.092 R)
• M2: 1,234,332 km (0.078 R)
• M3: 2,267,605 km (0.092 R)
• M4: 2,896,215 km (0.11 R)
• M5: 3,655,723 km (0.095 R)
• M6: 3,998,751 km (0.077 R)
• M7: 4,867,616 km (0.11 R)
• M8: 8,127,652 km (0.095 R)
• M9: 8,891,798 km (0.056 R)
• M10: 10,087,983 km (0.101 R)
• M11: 10,643,589 km (0.036 R)
• M12: 13,542,347 km (0.108 R)
• M13: 13,974,535 km (0.077 R)
• M14: 15,121,054 km (0.115 R)
• M15: 15,586,453 km (0.116 R)
• M16: 18,000,065 km (0.11 R)
• M17: 19,659,554 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.9

Radius: 8.8

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.83 AU - 3.15 AU

Year: 3392 Days

Day: 12 Hours

Environment

Temp: -199 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,368,062 km

• M1: 112,797 km (0.071 R)
• M2: 401,221 km (0.111 R)
• M3: 944,711 km (0.074 R)
• M4: 1,590,375 km (0.06 R)
• M5: 2,237,535 km (0.11 R)
• M6: 2,535,534 km (0.062 R)
• M7: 2,911,025 km (0.111 R)
• M8: 3,815,643 km (0.096 R)
• M9: 5,221,863 km (0.066 R)
• M10: 5,641,784 km (0.105 R)
• M11: 6,609,384 km (0.099 R)
• M12: 8,158,320 km (0.06 R)
• M13: 8,724,548 km (0.104 R)
• M14: 13,593,809 km (0.099 R)
• M15: 15,269,155 km (0.096 R)
• M16: 16,183,797 km (0.08 R)
• M17: 19,518,184 km (0.069 R)
• M18: 22,317,758 km (0.056 R)
• M19: 23,565,405 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831

Radius: 11.5

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.15 AU - 4.43 AU

Year: 4840 Days

Day: 10.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,368,062 km

• M1: 143,016 km (0.104 R)
• M2: 509,979 km (0.094 R)
• M3: 1,123,630 km (0.091 R)
• M4: 1,837,361 km (0.091 R)
• M5: 2,870,484 km (0.116 R)
• M6: 3,612,489 km (0.114 R)
• M7: 5,593,614 km (0.081 R)
• M8: 6,520,822 km (0.075 R)
• M9: 9,203,411 km (0.072 R)
• M10: 11,658,461 km (0.101 R)
• M11: 12,599,731 km (0.044 R)
• M12: 13,752,083 km (0.034 R)
• M13: 14,188,161 km (0.099 R)
• M14: 14,859,407 km (0.104 R)
• M15: 15,846,753 km (0.109 R)
• M16: 23,013,089 km (0.116 R)
• M17: 28,863,862 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.3

Radius: 4.6

Gravity: 36.97 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.18 AU - 10.58 AU

Year: 17359 Days

Day: 17.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 72,368,062 km

• M1: 61,186 km (0.092 R)
• M2: 736,470 km (0.026 R)
• M3: 1,561,054 km (0.104 R)
• M4: 1,802,654 km (0.043 R)
• M5: 2,029,146 km (0.065 R)
• M6: 2,232,299 km (0.111 R)
• M7: 3,459,152 km (0.1 R)
• M8: 3,631,638 km (0.065 R)
• M9: 3,840,028 km (0.113 R)
• M10: 5,077,501 km (0.118 R)
• M11: 5,338,400 km (0.111 R)
• M12: 5,766,400 km (0.08 R)
• M13: 6,009,346 km (0.079 R)
• M14: 6,301,362 km (0.114 R)
• M15: 6,602,652 km (0.086 R)
• M16: 9,041,995 km (0.098 R)
• M17: 9,536,864 km (0.028 R)
• M18: 10,224,715 km (0.061 R)
• M19: 10,945,029 km (0.081 R)
• M20: 12,022,433 km (0.106 R)
• M21: 13,168,652 km (0.111 R)
• M22: 14,984,022 km (0.059 R)
• M23: 15,289,052 km (0.088 R)
• M24: 19,280,922 km (0.075 R)
• M25: 20,564,023 km (0.098 R)
• M26: 25,828,820 km (0.116 R)
• M27: 26,157,337 km (0.062 R)
• M28: 33,198,311 km (0.116 R)
• M29: 34,240,709 km (0.079 R)
• M30: 38,771,579 km (0.061 R)
• M31: 46,533,914 km (0.116 R)
• M32: 48,333,875 km (0.1 R)
• M33: 50,520,398 km (0.104 R)
• M34: 50,862,528 km (0.119 R)
• M35: 54,908,702 km (0.102 R)
• M36: 55,998,373 km (0.114 R)
• M37: 64,033,274 km (0.039 R)
• M38: 64,233,287 km (0.105 R)
• M39: 65,849,542 km (0.117 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 13,936 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit