🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.7

Radius: 12.6

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.45 AU - 0.69 AU

Year: 292 Days

Day: 12 Hours

Environment

Temp: -141 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,125,496 km

• M1: 156,779 km (0.047 R)
• M2: 596,896 km (0.095 R)
• M3: 990,188 km (0.108 R)
• M4: 1,555,369 km (0.079 R)
• M5: 2,132,368 km (0.07 R)
• M6: 2,526,409 km (0.076 R)
• M7: 2,923,142 km (0.087 R)
• M8: 3,320,923 km (0.111 R)
• M9: 3,878,175 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.2

Radius: 10

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.51 AU - 0.67 AU

Year: 307 Days

Day: 12.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,125,496 km

• M1: 124,316 km (0.1 R)
• M2: 439,967 km (0.095 R)
• M3: 767,886 km (0.118 R)
• M4: 1,205,011 km (0.117 R)
• M5: 1,553,873 km (0.064 R)
• M6: 1,919,341 km (0.103 R)
• M7: 2,350,781 km (0.098 R)
• M8: 2,704,430 km (0.1 R)
• M9: 3,043,120 km (0.076 R)
• M10: 3,355,929 km (0.064 R)
• M11: 4,034,804 km (0.06 R)
• M12: 4,572,010 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.2

Radius: 10.3

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.7 AU - 0.76 AU

Year: 423 Days

Day: 10 Hours

Environment

Temp: -155 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,125,496 km

• M1: 128,056 km (0.065 R)
• M2: 595,250 km (0.112 R)
• M3: 1,162,076 km (0.04 R)
• M4: 1,488,200 km (0.118 R)
• M5: 1,840,652 km (0.065 R)
• M6: 2,183,680 km (0.091 R)
• M7: 2,689,770 km (0.115 R)
• M8: 3,166,538 km (0.063 R)
• M9: 3,549,060 km (0.097 R)
• M10: 3,987,082 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.5

Radius: 9.8

Gravity: 9.97 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.85 AU - 0.91 AU

Year: 560 Days

Day: 6.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,125,496 km

• M1: 121,922 km (0.093 R)
• M2: 503,546 km (0.107 R)
• M3: 858,841 km (0.1 R)
• M4: 1,164,320 km (0.108 R)
• M5: 1,522,009 km (0.115 R)
• M6: 1,840,353 km (0.111 R)
• M7: 2,321,759 km (0.07 R)
• M8: 2,647,583 km (0.064 R)
• M9: 3,418,760 km (0.039 R)
• M10: 4,075,495 km (0.072 R)
• M11: 4,442,159 km (0.089 R)
• M12: 4,948,249 km (0.062 R)
• M13: 5,384,177 km (0.111 R)
• M14: 5,864,536 km (0.049 R)
• M15: 6,353,122 km (0.105 R)
• M16: 6,679,994 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.4

Radius: 12

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.93 AU - 0.95 AU

Year: 618 Days

Day: 8.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,125,496 km

• M1: 149,299 km (0.091 R)
• M2: 597,344 km (0.088 R)
• M3: 1,046,138 km (0.111 R)
• M4: 1,427,912 km (0.115 R)
• M5: 2,346,891 km (0.119 R)
• M6: 2,857,170 km (0.107 R)
• M7: 3,706,886 km (0.041 R)
• M8: 4,102,871 km (0.074 R)
• M9: 4,527,131 km (0.097 R)
• M10: 5,098,894 km (0.11 R)
• M11: 5,942,177 km (0.084 R)
• M12: 6,348,036 km (0.056 R)
• M13: 7,108,292 km (0.095 R)
• M14: 7,499,640 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.3

Radius: 11.1

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.82 AU - 1.34 AU

Year: 761 Days

Day: 8.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,125,496 km

• M1: 138,079 km (0.079 R)
• M2: 506,987 km (0.098 R)
• M3: 868,416 km (0.111 R)
• M4: 1,256,473 km (0.113 R)
• M5: 1,812,378 km (0.118 R)
• M6: 2,163,185 km (0.087 R)
• M7: 3,090,094 km (0.032 R)
• M8: 3,637,323 km (0.11 R)
• M9: 4,037,497 km (0.067 R)
• M10: 4,388,154 km (0.088 R)
• M11: 4,995,223 km (0.095 R)
• M12: 5,827,136 km (0.083 R)
• M13: 6,177,046 km (0.096 R)
• M14: 6,602,801 km (0.068 R)
• M15: 7,289,605 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851

Radius: 13.5

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.2 AU - 1.56 AU

Year: 1100 Days

Day: 11.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,125,496 km

• M1: 167,998 km (0.076 R)
• M2: 864,825 km (0.094 R)
• M3: 1,332,618 km (0.084 R)
• M4: 1,760,318 km (0.095 R)
• M5: 2,259,526 km (0.028 R)
• M6: 2,762,474 km (0.083 R)
• M7: 5,027,536 km (0.099 R)
• M8: 6,455,896 km (0.094 R)
• M9: 8,498,057 km (0.117 R)
• M10: 9,515,322 km (0.086 R)
• M11: 10,386,131 km (0.112 R)
• M12: 11,073,683 km (0.104 R)
• M13: 11,583,363 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.8

Radius: 12.3

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.31 AU - 1.77 AU

Year: 1296 Days

Day: 7.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,125,496 km

• M1: 153,039 km (0.061 R)
• M2: 626,665 km (0.091 R)
• M3: 1,095,804 km (0.084 R)
• M4: 1,784,104 km (0.11 R)
• M5: 2,205,970 km (0.071 R)
• M6: 2,966,227 km (0.086 R)
• M7: 4,278,050 km (0.11 R)
• M8: 4,779,652 km (0.105 R)
• M9: 5,944,870 km (0.086 R)
• M10: 6,433,456 km (0.112 R)
• M11: 7,670,182 km (0.064 R)
• M12: 8,062,577 km (0.108 R)
• M13: 8,746,389 km (0.064 R)
• M14: 10,261,367 km (0.052 R)
• M15: 10,901,047 km (0.098 R)
• M16: 11,297,332 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 868.6

Radius: 4

Gravity: 54.29 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 5.72 AU - 8.68 AU

Year: 13104 Days

Day: 17.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,125,496 km

• M1: 73,901 km (0.066 R)
• M2: 267,780 km (0.088 R)
• M3: 795,262 km (0.101 R)
• M4: 1,258,118 km (0.03 R)
• M5: 2,300,965 km (0.095 R)
• M6: 2,511,150 km (0.071 R)
• M7: 3,143,350 km (0.109 R)
• M8: 5,054,463 km (0.119 R)
• M9: 5,301,599 km (0.11 R)
• M10: 5,974,490 km (0.03 R)
• M11: 7,949,780 km (0.12 R)
• M12: 9,449,200 km (0.04 R)
• M13: 9,933,448 km (0.104 R)
• M14: 11,545,814 km (0.115 R)
• M15: 15,424,288 km (0.099 R)
• M16: 26,237,971 km (0.104 R)
• M17: 31,240,374 km (0.095 R)
• M18: 38,306,779 km (0.105 R)
• M19: 38,441,716 km (0.034 R)
• M20: 39,395,851 km (0.095 R)
• M21: 41,351,095 km (0.084 R)
• M22: 48,229,905 km (0.087 R)
• M23: 52,602,501 km (0.116 R)
• M24: 52,769,303 km (0.065 R)
• M25: 58,474,965 km (0.112 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: 241 - 16,903 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit