🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.5

Radius: 14.6

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.64 AU - 0.96 AU

Year: 494 Days

Day: 11.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,767,220 km

• M1: 181,612 km (0.068 R)
• M2: 699,071 km (0.11 R)
• M3: 1,172,847 km (0.108 R)
• M4: 2,013,887 km (0.08 R)
• M5: 2,641,450 km (0.096 R)
• M6: 3,516,148 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.7

Radius: 14.1

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.74 AU - 1.06 AU

Year: 589 Days

Day: 8.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,767,220 km

• M1: 175,329 km (0.12 R)
• M2: 699,071 km (0.087 R)
• M3: 1,201,869 km (0.061 R)
• M4: 1,668,016 km (0.102 R)
• M5: 2,165,130 km (0.114 R)
• M6: 2,655,213 km (0.104 R)
• M7: 3,120,312 km (0.028 R)
• M8: 3,728,577 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.2

Radius: 11.2

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.35 AU - 1.79 AU

Year: 1358 Days

Day: 10.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,767,220 km

• M1: 139,276 km (0.11 R)
• M2: 575,054 km (0.114 R)
• M3: 955,631 km (0.099 R)
• M4: 2,220,032 km (0.039 R)
• M5: 2,849,839 km (0.07 R)
• M6: 3,462,742 km (0.029 R)
• M7: 3,982,595 km (0.101 R)
• M8: 5,121,932 km (0.116 R)
• M9: 7,601,965 km (0.106 R)
• M10: 7,956,812 km (0.104 R)
• M11: 9,316,058 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.4

Radius: 14.2

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.65 AU - 3.17 AU

Year: 3426 Days

Day: 14.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,767,220 km

• M1: 176,675 km (0.097 R)
• M2: 787,184 km (0.094 R)
• M3: 1,283,849 km (0.101 R)
• M4: 1,995,935 km (0.068 R)
• M5: 2,641,599 km (0.046 R)
• M6: 3,424,295 km (0.04 R)
• M7: 3,978,107 km (0.095 R)
• M8: 4,663,564 km (0.034 R)
• M9: 6,272,340 km (0.057 R)
• M10: 7,334,784 km (0.066 R)
• M11: 7,909,389 km (0.084 R)
• M12: 8,405,007 km (0.084 R)
• M13: 8,996,966 km (0.108 R)
• M14: 10,726,915 km (0.061 R)
• M15: 11,648,289 km (0.067 R)
• M16: 12,151,685 km (0.082 R)
• M17: 14,105,882 km (0.083 R)
• M18: 14,890,224 km (0.107 R)
• M19: 16,949,588 km (0.089 R)
• M20: 19,319,219 km (0.109 R)
• M21: 21,490,632 km (0.102 R)
• M22: 23,097,163 km (0.096 R)
• M23: 25,617,139 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.4

Radius: 12.3

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3.15 AU - 4.41 AU

Year: 5073 Days

Day: 12.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,767,220 km

• M1: 153,039 km (0.049 R)
• M2: 674,238 km (0.061 R)
• M3: 1,088,624 km (0.078 R)
• M4: 1,499,868 km (0.117 R)
• M5: 1,964,070 km (0.025 R)
• M6: 2,539,723 km (0.097 R)
• M7: 3,455,262 km (0.085 R)
• M8: 4,232,273 km (0.029 R)
• M9: 6,488,808 km (0.096 R)
• M10: 8,440,910 km (0.06 R)
• M11: 9,414,942 km (0.076 R)
• M12: 14,123,984 km (0.073 R)
• M13: 14,641,443 km (0.076 R)
• M14: 16,609,552 km (0.066 R)
• M15: 20,732,320 km (0.079 R)
• M16: 23,350,582 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.4

Radius: 14.3

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 3.26 AU - 4.74 AU

Year: 5522 Days

Day: 6.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,767,220 km

• M1: 207,193 km (0.107 R)
• M2: 811,269 km (0.075 R)
• M3: 1,427,912 km (0.113 R)
• M4: 2,575,926 km (0.039 R)
• M5: 3,418,611 km (0.086 R)
• M6: 5,359,344 km (0.072 R)
• M7: 6,188,864 km (0.119 R)
• M8: 7,172,620 km (0.063 R)
• M9: 7,628,743 km (0.12 R)
• M10: 9,708,603 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.4

Radius: 10.8

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.72 AU - 5.18 AU

Year: 6480 Days

Day: 12.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,767,220 km

• M1: 134,339 km (0.111 R)
• M2: 475,422 km (0.07 R)
• M3: 896,540 km (0.1 R)
• M4: 1,596,658 km (0.101 R)
• M5: 2,447,421 km (0.112 R)
• M6: 3,152,925 km (0.082 R)
• M7: 4,624,220 km (0.065 R)
• M8: 4,966,500 km (0.108 R)
• M9: 6,198,289 km (0.112 R)
• M10: 7,741,540 km (0.111 R)
• M11: 9,617,946 km (0.097 R)
• M12: 11,991,466 km (0.117 R)
• M13: 15,476,349 km (0.111 R)
• M14: 16,907,701 km (0.028 R)
• M15: 19,584,904 km (0.113 R)
• M16: 21,889,011 km (0.075 R)
• M17: 27,213,049 km (0.1 R)
• M18: 30,770,038 km (0.108 R)
• M19: 32,193,163 km (0.111 R)
• M20: 33,236,309 km (0.061 R)
• M21: 37,178,362 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.8

Radius: 12.2

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 5.48 AU - 5.52 AU

Year: 8903 Days

Day: 6.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,767,220 km

• M1: 155,283 km (0.11 R)
• M2: 543,040 km (0.046 R)
• M3: 1,114,504 km (0.119 R)
• M4: 1,567,038 km (0.031 R)
• M5: 2,142,840 km (0.116 R)
• M6: 2,530,149 km (0.066 R)
• M7: 3,143,350 km (0.079 R)
• M8: 4,850,861 km (0.09 R)
• M9: 7,853,739 km (0.057 R)
• M10: 8,245,236 km (0.093 R)
• M11: 9,114,998 km (0.114 R)
• M12: 13,094,601 km (0.103 R)
• M13: 15,261,676 km (0.048 R)
• M14: 17,073,007 km (0.056 R)
• M15: 18,030,732 km (0.071 R)
• M16: 22,135,847 km (0.118 R)
• M17: 27,318,516 km (0.099 R)
• M18: 34,170,996 km (0.038 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 507.7

Radius: 3.1

Gravity: 52.83 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 7.5 AU - 9.3 AU

Year: 16805 Days

Day: 21.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 72,767,220 km

• M1: 38,596 km (0.109 R)
• M2: 214,075 km (0.114 R)
• M3: 334,351 km (0.073 R)
• M4: 458,817 km (0.063 R)
• M5: 844,031 km (0.109 R)
• M6: 1,285,345 km (0.107 R)
• M7: 2,220,631 km (0.094 R)
• M8: 3,167,585 km (0.102 R)
• M9: 3,427,437 km (0.096 R)
• M10: 3,562,673 km (0.082 R)
• M11: 3,960,155 km (0.072 R)
• M12: 5,511,335 km (0.069 R)
• M13: 5,848,678 km (0.09 R)
• M14: 6,279,371 km (0.114 R)
• M15: 8,555,353 km (0.063 R)
• M16: 11,566,459 km (0.091 R)
• M17: 11,809,555 km (0.072 R)
• M18: 12,305,921 km (0.111 R)
• M19: 13,742,659 km (0.109 R)
• M20: 14,153,155 km (0.082 R)
• M21: 15,360,261 km (0.12 R)
• M22: 19,135,961 km (0.114 R)
• M23: 24,768,321 km (0.086 R)
• M24: 25,682,813 km (0.118 R)
• M25: 29,228,881 km (0.095 R)
• M26: 29,906,858 km (0.116 R)
• M27: 30,020,852 km (0.084 R)
• M28: 30,364,628 km (0.073 R)
• M29: 31,647,430 km (0.074 R)
• M30: 32,482,335 km (0.108 R)
• M31: 37,140,514 km (0.085 R)
• M32: 41,938,566 km (0.093 R)
• M33: 45,910,091 km (0.062 R)
• M34: 47,287,737 km (0.112 R)
• M35: 49,325,859 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774.5

Radius: 3.4

Gravity: 67 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 7.15 AU - 10.17 AU

Year: 17591 Days

Day: 24.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 72,767,220 km

• M1: 43,234 km (0.119 R)
• M2: 171,140 km (0.047 R)
• M3: 452,384 km (0.101 R)
• M4: 606,769 km (0.11 R)
• M5: 775,216 km (0.028 R)
• M6: 1,426,565 km (0.079 R)
• M7: 2,126,085 km (0.116 R)
• M8: 2,447,720 km (0.091 R)
• M9: 3,107,148 km (0.1 R)
• M10: 3,637,173 km (0.026 R)
• M11: 4,001,444 km (0.091 R)
• M12: 5,704,316 km (0.087 R)
• M13: 6,237,334 km (0.093 R)
• M14: 6,847,693 km (0.101 R)
• M15: 7,354,381 km (0.058 R)
• M16: 8,135,431 km (0.117 R)
• M17: 9,242,456 km (0.091 R)
• M18: 12,340,927 km (0.11 R)
• M19: 13,228,940 km (0.094 R)
• M20: 14,527,449 km (0.097 R)
• M21: 16,387,699 km (0.084 R)
• M22: 18,663,382 km (0.065 R)
• M23: 25,852,008 km (0.052 R)
• M24: 26,071,319 km (0.095 R)
• M25: 27,299,966 km (0.116 R)
• M26: 29,631,748 km (0.118 R)
• M27: 30,969,153 km (0.103 R)
• M28: 34,686,959 km (0.115 R)
• M29: 38,405,663 km (0.074 R)
• M30: 46,622,924 km (0.116 R)
• M31: 49,265,122 km (0.097 R)
• M32: 50,794,461 km (0.068 R)
• M33: 52,355,066 km (0.07 R)
• M34: 60,253,834 km (0.099 R)
• M35: 64,585,889 km (0.075 R)
• M36: 66,211,270 km (0.042 R)
• M37: 69,120,948 km (0.111 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 16,915 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit