🌌 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: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.49 AU - 0.55 AU

Year: 246 Days

Day: 21.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 12.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,461,140 km

• M1: 92,751 km (0.048 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.52 AU - 0.58 AU

Year: 268 Days

Day: 39 Hours

Environment

Temp: -124 °C

Axial Tilt: 16.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.4

Radius: 14.7

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.54 AU - 0.84 AU

Year: 376 Days

Day: 8.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,461,140 km

• M1: 182,809 km (0.041 R)
• M2: 806,482 km (0.067 R)
• M3: 1,443,021 km (0.098 R)
• M4: 2,245,314 km (0.115 R)
• M5: 3,123,454 km (0.031 R)
• M6: 3,703,146 km (0.096 R)
• M7: 4,354,495 km (0.099 R)
• M8: 4,830,515 km (0.093 R)
• M9: 5,295,017 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.1

Radius: 10.3

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.95 AU - 1.29 AU

Year: 778 Days

Day: 10.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,461,140 km

• M1: 128,056 km (0.118 R)
• M2: 472,729 km (0.116 R)
• M3: 877,242 km (0.119 R)
• M4: 1,425,518 km (0.088 R)
• M5: 1,888,972 km (0.061 R)
• M6: 2,242,023 km (0.036 R)
• M7: 2,766,513 km (0.041 R)
• M8: 3,331,096 km (0.079 R)
• M9: 4,249,028 km (0.105 R)
• M10: 5,073,163 km (0.085 R)
• M11: 6,431,063 km (0.115 R)
• M12: 7,014,794 km (0.076 R)
• M13: 7,469,721 km (0.1 R)
• M14: 8,565,675 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.8

Radius: 13.1

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.5 AU - 2.08 AU

Year: 1571 Days

Day: 7.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,461,140 km

• M1: 168,298 km (0.107 R)
• M2: 613,800 km (0.079 R)
• M3: 1,027,438 km (0.069 R)
• M4: 1,980,975 km (0.091 R)
• M5: 2,395,062 km (0.117 R)
• M6: 2,918,355 km (0.111 R)
• M7: 4,280,743 km (0.111 R)
• M8: 6,222,972 km (0.115 R)
• M9: 7,078,971 km (0.118 R)
• M10: 7,808,859 km (0.115 R)
• M11: 9,249,038 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.7

Radius: 11.9

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.52 AU - 2.12 AU

Year: 1611 Days

Day: 11.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,461,140 km

• M1: 148,551 km (0.054 R)
• M2: 764,744 km (0.085 R)
• M3: 1,418,786 km (0.071 R)
• M4: 1,840,503 km (0.042 R)
• M5: 2,296,776 km (0.105 R)
• M6: 2,715,800 km (0.118 R)
• M7: 4,975,775 km (0.067 R)
• M8: 6,136,355 km (0.111 R)
• M9: 6,846,197 km (0.09 R)
• M10: 7,221,239 km (0.11 R)
• M11: 11,654,422 km (0.088 R)
• M12: 13,520,207 km (0.076 R)
• M13: 14,284,951 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.9

Radius: 14.6

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.07 AU - 3.81 AU

Year: 4185 Days

Day: 8 Hours

Environment

Temp: -209 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,461,140 km

• M1: 181,612 km (0.094 R)
• M2: 679,773 km (0.111 R)
• M3: 1,196,783 km (0.038 R)
• M4: 1,722,769 km (0.101 R)
• M5: 2,463,129 km (0.109 R)
• M6: 3,390,636 km (0.025 R)
• M7: 4,701,263 km (0.046 R)
• M8: 6,442,133 km (0.095 R)
• M9: 7,160,352 km (0.118 R)
• M10: 7,668,536 km (0.086 R)
• M11: 9,118,289 km (0.085 R)
• M12: 10,182,080 km (0.063 R)
• M13: 13,824,190 km (0.104 R)
• M14: 15,072,733 km (0.115 R)
• M15: 16,286,720 km (0.072 R)
• M16: 18,551,931 km (0.099 R)
• M17: 20,070,200 km (0.118 R)
• M18: 22,266,147 km (0.117 R)

Asteroid Belt

Center: 3.93 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.8

Radius: 13.8

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.34 AU - 5.48 AU

Year: 6075 Days

Day: 5.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,461,140 km

• M1: 171,589 km (0.085 R)
• M2: 689,945 km (0.093 R)
• M3: 1,224,459 km (0.112 R)
• M4: 2,810,794 km (0.112 R)
• M5: 3,941,455 km (0.108 R)
• M6: 4,784,738 km (0.075 R)
• M7: 5,308,630 km (0.101 R)
• M8: 9,476,427 km (0.057 R)
• M9: 10,418,295 km (0.078 R)
• M10: 12,112,042 km (0.095 R)
• M11: 12,701,158 km (0.085 R)
• M12: 13,442,266 km (0.101 R)
• M13: 15,011,099 km (0.115 R)
• M14: 15,446,130 km (0.116 R)
• M15: 16,189,930 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 455.2

Radius: 6.3

Gravity: 11.47 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 5.7 AU - 7.74 AU

Year: 11428 Days

Day: 16.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 57,461,140 km

• M1: 78,389 km (0.092 R)
• M2: 279,748 km (0.071 R)
• M3: 612,304 km (0.091 R)
• M4: 862,133 km (0.096 R)
• M5: 2,261,471 km (0.086 R)
• M6: 3,508,369 km (0.108 R)
• M7: 5,032,024 km (0.102 R)
• M8: 5,956,538 km (0.115 R)
• M9: 6,682,986 km (0.1 R)
• M10: 7,923,302 km (0.091 R)
• M11: 8,136,927 km (0.106 R)
• M12: 10,591,828 km (0.111 R)
• M13: 11,382,752 km (0.11 R)
• M14: 11,600,118 km (0.117 R)
• M15: 14,556,770 km (0.083 R)
• M16: 16,552,705 km (0.052 R)
• M17: 17,328,071 km (0.034 R)
• M18: 21,905,018 km (0.088 R)
• M19: 23,447,222 km (0.088 R)
• M20: 24,786,572 km (0.118 R)
• M21: 25,336,195 km (0.088 R)
• M22: 26,746,155 km (0.081 R)
• M23: 30,237,769 km (0.102 R)
• M24: 31,501,572 km (0.114 R)
• M25: 36,791,053 km (0.084 R)
• M26: 38,230,633 km (0.115 R)
• M27: 39,707,314 km (0.082 R)
• M28: 44,365,044 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 589.1

Radius: 5.4

Gravity: 20.2 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 7.2 AU - 8.3 AU

Year: 14153 Days

Day: 18.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 57,461,140 km

• M1: 67,618 km (0.091 R)
• M2: 242,199 km (0.064 R)
• M3: 413,189 km (0.093 R)
• M4: 661,821 km (0.087 R)
• M5: 911,201 km (0.091 R)
• M6: 1,601,296 km (0.045 R)
• M7: 3,685,493 km (0.096 R)
• M8: 4,289,121 km (0.063 R)
• M9: 4,598,639 km (0.053 R)
• M10: 5,690,105 km (0.093 R)
• M11: 6,218,185 km (0.073 R)
• M12: 6,574,527 km (0.119 R)
• M13: 7,070,594 km (0.109 R)
• M14: 8,467,539 km (0.112 R)
• M15: 8,660,221 km (0.097 R)
• M16: 9,773,229 km (0.114 R)
• M17: 10,309,388 km (0.115 R)
• M18: 11,975,010 km (0.109 R)
• M19: 12,402,411 km (0.12 R)
• M20: 12,776,705 km (0.092 R)
• M21: 13,030,573 km (0.115 R)
• M22: 13,352,508 km (0.083 R)
• M23: 13,878,494 km (0.116 R)
• M24: 15,112,676 km (0.087 R)
• M25: 19,922,547 km (0.062 R)
• M26: 20,609,051 km (0.12 R)
• M27: 23,230,455 km (0.089 R)
• M28: 24,377,272 km (0.115 R)
• M29: 28,150,280 km (0.1 R)
• M30: 31,712,355 km (0.084 R)
• M31: 32,060,918 km (0.108 R)
• M32: 36,065,952 km (0.085 R)
• M33: 39,179,533 km (0.026 R)
• M34: 41,629,048 km (0.104 R)
• M35: 42,186,899 km (0.082 R)
• M36: 48,656,408 km (0.063 R)
• M37: 51,004,496 km (0.081 R)
• M38: 52,125,732 km (0.101 R)
• M39: 54,417,273 km (0.103 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 332 - 15,992 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit