🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.5

Radius: 14.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.68 AU - 1.12 AU

Year: 560 Days

Day: 6.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,214,342 km

• M1: 175,329 km (0.057 R)
• M2: 625,618 km (0.1 R)
• M3: 1,185,114 km (0.082 R)
• M4: 1,861,746 km (0.12 R)
• M5: 2,455,051 km (0.055 R)
• M6: 3,931,881 km (0.112 R)
• M7: 4,685,405 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.6

Radius: 13.2

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.85 AU - 1.23 AU

Year: 696 Days

Day: 13.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,214,342 km

• M1: 164,109 km (0.11 R)
• M2: 899,382 km (0.049 R)
• M3: 1,946,119 km (0.099 R)
• M4: 2,495,292 km (0.088 R)
• M5: 3,147,240 km (0.096 R)
• M6: 3,925,598 km (0.083 R)
• M7: 4,674,784 km (0.091 R)
• M8: 5,147,064 km (0.063 R)
• M9: 5,806,941 km (0.043 R)
• M10: 6,333,076 km (0.084 R)
• M11: 7,136,716 km (0.037 R)
• M12: 7,693,669 km (0.118 R)
• M13: 8,894,940 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.8

Radius: 11.8

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.13 AU - 1.39 AU

Year: 928 Days

Day: 12 Hours

Environment

Temp: -177 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,214,342 km

• M1: 146,756 km (0.109 R)
• M2: 539,450 km (0.041 R)
• M3: 1,056,759 km (0.077 R)
• M4: 1,541,606 km (0.101 R)
• M5: 2,008,351 km (0.114 R)
• M6: 2,545,109 km (0.111 R)
• M7: 2,933,016 km (0.062 R)
• M8: 3,317,482 km (0.12 R)
• M9: 4,138,924 km (0.096 R)
• M10: 4,752,575 km (0.033 R)
• M11: 5,188,353 km (0.073 R)
• M12: 6,074,870 km (0.095 R)
• M13: 6,774,689 km (0.098 R)
• M14: 8,308,516 km (0.114 R)
• M15: 9,879,593 km (0.089 R)
• M16: 10,403,036 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.3

Radius: 9.2

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.72 AU - 2.08 AU

Year: 1718 Days

Day: 9.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,214,342 km

• M1: 116,238 km (0.098 R)
• M2: 1,088,923 km (0.048 R)
• M3: 1,439,880 km (0.099 R)
• M4: 1,789,939 km (0.042 R)
• M5: 2,265,211 km (0.098 R)
• M6: 2,576,524 km (0.08 R)
• M7: 2,952,015 km (0.081 R)
• M8: 3,729,176 km (0.09 R)
• M9: 4,397,130 km (0.063 R)
• M10: 5,055,810 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962

Radius: 13.5

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.74 AU - 2.56 AU

Year: 2068 Days

Day: 5.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,214,342 km

• M1: 167,849 km (0.093 R)
• M2: 722,109 km (0.108 R)
• M3: 1,180,626 km (0.088 R)
• M4: 1,699,282 km (0.087 R)
• M5: 2,186,971 km (0.116 R)
• M6: 2,844,604 km (0.088 R)
• M7: 3,595,136 km (0.047 R)
• M8: 4,166,301 km (0.067 R)
• M9: 4,864,175 km (0.029 R)
• M10: 6,147,575 km (0.058 R)
• M11: 6,631,374 km (0.086 R)
• M12: 8,270,219 km (0.087 R)
• M13: 9,586,381 km (0.072 R)
• M14: 11,194,558 km (0.085 R)
• M15: 11,877,622 km (0.112 R)
• M16: 13,283,094 km (0.108 R)
• M17: 14,095,111 km (0.084 R)
• M18: 16,068,158 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.4

Radius: 10.5

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.09 AU - 2.37 AU

Year: 2185 Days

Day: 7.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,214,342 km

• M1: 130,599 km (0.054 R)
• M2: 487,839 km (0.115 R)
• M3: 903,721 km (0.055 R)
• M4: 1,416,692 km (0.104 R)
• M5: 1,998,179 km (0.095 R)
• M6: 2,533,739 km (0.088 R)
• M7: 2,866,295 km (0.056 R)
• M8: 3,463,340 km (0.111 R)
• M9: 5,038,307 km (0.088 R)
• M10: 6,988,614 km (0.062 R)
• M11: 8,163,705 km (0.061 R)
• M12: 8,831,062 km (0.071 R)
• M13: 10,274,531 km (0.117 R)
• M14: 10,901,496 km (0.112 R)
• M15: 11,475,653 km (0.077 R)
• M16: 13,843,189 km (0.087 R)
• M17: 14,654,009 km (0.09 R)
• M18: 16,819,588 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.6

Radius: 8.5

Gravity: 11.88 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.62 AU - 5.62 AU

Year: 6514 Days

Day: 13.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 39,214,342 km

• M1: 107,262 km (0.114 R)
• M2: 384,167 km (0.071 R)
• M3: 675,285 km (0.108 R)
• M4: 1,423,125 km (0.055 R)
• M5: 1,927,868 km (0.083 R)
• M6: 2,281,667 km (0.097 R)
• M7: 3,250,014 km (0.099 R)
• M8: 3,541,879 km (0.11 R)
• M9: 4,746,591 km (0.11 R)
• M10: 5,742,314 km (0.107 R)
• M11: 6,620,155 km (0.1 R)
• M12: 9,381,282 km (0.079 R)
• M13: 10,498,779 km (0.108 R)
• M14: 11,139,955 km (0.071 R)
• M15: 11,911,880 km (0.099 R)
• M16: 12,884,715 km (0.058 R)
• M17: 14,926,576 km (0.1 R)
• M18: 15,422,044 km (0.066 R)
• M19: 18,274,577 km (0.104 R)
• M20: 22,492,937 km (0.037 R)
• M21: 28,435,264 km (0.103 R)
• M22: 28,814,195 km (0.041 R)
• M23: 30,561,499 km (0.093 R)
• M24: 31,461,180 km (0.113 R)
• M25: 32,895,525 km (0.044 R)
• M26: 33,523,387 km (0.118 R)
• M27: 34,372,953 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 134.2

Radius: 6.9

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.5 AU - 10.82 AU

Year: 16718 Days

Day: 20.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,214,342 km

• M1: 85,869 km (0.119 R)
• M2: 463,903 km (0.088 R)
• M3: 734,675 km (0.096 R)
• M4: 1,218,026 km (0.049 R)
• M5: 3,047,309 km (0.101 R)
• M6: 3,627,748 km (0.119 R)
• M7: 4,577,396 km (0.047 R)
• M8: 8,162,957 km (0.1 R)
• M9: 9,638,740 km (0.03 R)
• M10: 12,280,788 km (0.095 R)
• M11: 15,495,946 km (0.12 R)
• M12: 17,194,630 km (0.106 R)
• M13: 18,158,938 km (0.096 R)
• M14: 19,820,671 km (0.062 R)
• M15: 20,803,379 km (0.079 R)
• M16: 21,581,138 km (0.029 R)
• M17: 23,694,059 km (0.079 R)
• M18: 24,370,989 km (0.075 R)
• M19: 27,950,118 km (0.096 R)
• M20: 34,812,472 km (0.08 R)
• M21: 35,138,745 km (0.058 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 517 - 13,280 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit