🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.46 AU - 0.56 AU

Year: 235 Days

Day: 16.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.6

Radius: 12.8

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.64 AU - 0.92 AU

Year: 445 Days

Day: 12.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,407,478 km

• M1: 159,172 km (0.102 R)
• M2: 955,332 km (0.1 R)
• M3: 1,359,994 km (0.044 R)
• M4: 2,046,349 km (0.096 R)
• M5: 2,782,670 km (0.027 R)
• M6: 3,766,575 km (0.059 R)
• M7: 4,368,108 km (0.109 R)
• M8: 4,969,940 km (0.071 R)
• M9: 6,156,551 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.3

Radius: 14.4

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.92 AU - 1.1 AU

Year: 655 Days

Day: 13.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,407,478 km

• M1: 179,069 km (0.058 R)
• M2: 666,309 km (0.097 R)
• M3: 1,116,150 km (0.113 R)
• M4: 1,908,270 km (0.106 R)
• M5: 2,479,435 km (0.084 R)
• M6: 3,066,308 km (0.06 R)
• M7: 3,593,490 km (0.076 R)
• M8: 4,443,655 km (0.062 R)
• M9: 5,192,692 km (0.089 R)
• M10: 5,775,525 km (0.108 R)
• M11: 6,503,767 km (0.117 R)
• M12: 7,270,457 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.9

Radius: 10.4

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.84 AU - 2.1 AU

Year: 1785 Days

Day: 8.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,407,478 km

• M1: 129,402 km (0.118 R)
• M2: 680,820 km (0.101 R)
• M3: 1,268,291 km (0.097 R)
• M4: 1,617,602 km (0.097 R)
• M5: 2,327,743 km (0.065 R)
• M6: 2,926,733 km (0.103 R)
• M7: 4,432,136 km (0.088 R)
• M8: 5,948,311 km (0.117 R)
• M9: 6,609,384 km (0.094 R)
• M10: 7,167,982 km (0.12 R)
• M11: 7,497,546 km (0.092 R)
• M12: 7,943,647 km (0.053 R)
• M13: 8,547,424 km (0.096 R)
• M14: 9,600,892 km (0.089 R)
• M15: 11,137,561 km (0.09 R)
• M16: 11,754,054 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.8

Radius: 13.5

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.53 AU - 2.89 AU

Year: 2881 Days

Day: 14.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,407,478 km

• M1: 168,148 km (0.104 R)
• M2: 896,390 km (0.092 R)
• M3: 1,580,202 km (0.064 R)
• M4: 2,036,177 km (0.115 R)
• M5: 2,897,412 km (0.111 R)
• M6: 3,422,201 km (0.116 R)
• M7: 3,846,909 km (0.118 R)
• M8: 4,528,477 km (0.068 R)
• M9: 5,727,504 km (0.104 R)
• M10: 6,795,483 km (0.105 R)
• M11: 8,466,791 km (0.11 R)
• M12: 9,661,030 km (0.105 R)
• M13: 10,122,091 km (0.092 R)
• M14: 12,562,182 km (0.048 R)
• M15: 14,758,877 km (0.096 R)
• M16: 15,527,511 km (0.077 R)
• M17: 16,922,960 km (0.114 R)
• M18: 18,872,071 km (0.062 R)
• M19: 20,272,905 km (0.11 R)
• M20: 20,712,573 km (0.076 R)
• M21: 21,481,357 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.8

Radius: 9.8

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.19 AU - 4.63 AU

Year: 5980 Days

Day: 5.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 76,407,478 km

• M1: 121,922 km (0.039 R)
• M2: 593,754 km (0.1 R)
• M3: 899,981 km (0.084 R)
• M4: 1,721,124 km (0.076 R)
• M5: 2,097,811 km (0.088 R)
• M6: 2,547,053 km (0.061 R)
• M7: 3,100,416 km (0.03 R)
• M8: 3,755,355 km (0.059 R)
• M9: 4,421,066 km (0.04 R)
• M10: 5,797,067 km (0.06 R)
• M11: 6,280,418 km (0.116 R)
• M12: 9,155,240 km (0.111 R)
• M13: 11,120,657 km (0.086 R)
• M14: 12,755,163 km (0.088 R)
• M15: 14,956,795 km (0.103 R)
• M16: 15,498,639 km (0.107 R)
• M17: 16,304,522 km (0.029 R)
• M18: 17,932,596 km (0.041 R)
• M19: 18,270,687 km (0.104 R)
• M20: 20,025,919 km (0.111 R)
• M21: 21,206,545 km (0.088 R)
• M22: 23,383,344 km (0.085 R)
• M23: 25,026,677 km (0.097 R)
• M24: 27,365,490 km (0.12 R)
• M25: 29,189,237 km (0.103 R)
• M26: 32,875,179 km (0.078 R)
• M27: 34,515,969 km (0.1 R)
• M28: 35,462,474 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 809

Radius: 7.5

Gravity: 14.38 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 7.21 AU - 11.53 AU

Year: 18519 Days

Day: 16.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 76,407,478 km

• M1: 93,349 km (0.054 R)
• M2: 592,258 km (0.089 R)
• M3: 862,282 km (0.115 R)
• M4: 1,680,433 km (0.092 R)
• M5: 2,388,779 km (0.109 R)
• M6: 3,337,229 km (0.075 R)
• M7: 4,313,954 km (0.068 R)
• M8: 4,620,181 km (0.117 R)
• M9: 4,868,364 km (0.07 R)
• M10: 5,125,373 km (0.12 R)
• M11: 5,707,009 km (0.085 R)
• M12: 6,638,406 km (0.106 R)
• M13: 7,716,857 km (0.116 R)
• M14: 7,965,937 km (0.097 R)
• M15: 8,323,775 km (0.094 R)
• M16: 8,907,656 km (0.079 R)
• M17: 9,518,464 km (0.097 R)
• M18: 13,495,224 km (0.066 R)
• M19: 14,300,659 km (0.106 R)
• M20: 19,541,222 km (0.095 R)
• M21: 22,333,915 km (0.104 R)
• M22: 33,858,486 km (0.12 R)
• M23: 34,933,197 km (0.077 R)
• M24: 35,479,080 km (0.108 R)
• M25: 38,005,638 km (0.104 R)
• M26: 38,728,196 km (0.079 R)
• M27: 41,557,690 km (0.105 R)
• M28: 44,522,121 km (0.072 R)
• M29: 45,974,268 km (0.098 R)
• M30: 48,127,131 km (0.078 R)
• M31: 48,633,370 km (0.103 R)
• M32: 49,143,200 km (0.092 R)
• M33: 52,811,639 km (0.068 R)
• M34: 53,892,483 km (0.078 R)
• M35: 56,471,401 km (0.068 R)
• M36: 63,276,608 km (0.113 R)
• M37: 65,523,119 km (0.072 R)
• M38: 71,699,866 km (0.116 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 10,998 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit