🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.8

Radius: 10.7

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.62 AU - 0.68 AU

Year: 349 Days

Day: 9.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,326,455 km

• M1: 133,890 km (0.118 R)
• M2: 498,909 km (0.025 R)
• M3: 1,016,368 km (0.116 R)
• M4: 1,476,830 km (0.085 R)
• M5: 1,821,952 km (0.093 R)
• M6: 2,182,184 km (0.086 R)
• M7: 2,529,102 km (0.063 R)
• M8: 2,980,588 km (0.107 R)
• M9: 3,367,598 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58

Radius: 9

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.79 AU - 0.81 AU

Year: 477 Days

Day: 7.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 48,326,455 km

• M1: 111,899 km (0.118 R)
• M2: 712,086 km (0.105 R)
• M3: 1,023,249 km (0.096 R)
• M4: 1,358,349 km (0.114 R)
• M5: 1,819,708 km (0.084 R)
• M6: 2,455,350 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.4

Radius: 10.4

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.76 AU - 1.02 AU

Year: 560 Days

Day: 11.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,326,455 km

• M1: 129,701 km (0.117 R)
• M2: 476,170 km (0.109 R)
• M3: 805,884 km (0.081 R)
• M4: 1,163,871 km (0.029 R)
• M5: 1,821,354 km (0.099 R)
• M6: 2,177,995 km (0.075 R)
• M7: 3,004,374 km (0.119 R)
• M8: 3,495,504 km (0.062 R)
• M9: 3,916,921 km (0.089 R)
• M10: 4,371,848 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143

Radius: 8.3

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.2 AU - 1.2 AU

Year: 877 Days

Day: 6.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,326,455 km

• M1: 103,223 km (0.086 R)
• M2: 417,528 km (0.116 R)
• M3: 739,462 km (0.033 R)
• M4: 1,161,328 km (0.065 R)
• M5: 1,737,579 km (0.101 R)
• M6: 2,445,476 km (0.095 R)
• M7: 2,829,195 km (0.111 R)
• M8: 3,321,372 km (0.101 R)
• M9: 4,051,858 km (0.08 R)
• M10: 4,406,106 km (0.101 R)
• M11: 4,870,458 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.5

Radius: 13.6

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.22 AU - 1.26 AU

Year: 921 Days

Day: 14 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,326,455 km

• M1: 169,195 km (0.1 R)
• M2: 740,360 km (0.109 R)
• M3: 1,316,760 km (0.073 R)
• M4: 1,756,279 km (0.084 R)
• M5: 2,210,458 km (0.091 R)
• M6: 2,805,708 km (0.112 R)
• M7: 3,251,659 km (0.076 R)
• M8: 3,994,562 km (0.067 R)
• M9: 4,510,226 km (0.101 R)
• M10: 5,032,772 km (0.112 R)
• M11: 6,710,811 km (0.107 R)
• M12: 7,177,257 km (0.112 R)
• M13: 8,020,391 km (0.025 R)
• M14: 8,928,450 km (0.096 R)
• M15: 9,522,952 km (0.054 R)
• M16: 9,963,667 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.6

Radius: 14.6

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.98 AU - 2.06 AU

Year: 1915 Days

Day: 12.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,326,455 km

• M1: 181,612 km (0.096 R)
• M2: 641,476 km (0.112 R)
• M3: 1,107,323 km (0.059 R)
• M4: 2,023,311 km (0.08 R)
• M5: 2,580,563 km (0.119 R)
• M6: 3,068,701 km (0.091 R)
• M7: 4,541,043 km (0.095 R)
• M8: 5,572,221 km (0.055 R)
• M9: 8,043,429 km (0.066 R)
• M10: 8,574,202 km (0.084 R)
• M11: 11,414,467 km (0.036 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.7

Radius: 14.7

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.2 AU - 3.3 AU

Year: 3041 Days

Day: 5.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,326,455 km

• M1: 182,809 km (0.025 R)
• M2: 787,932 km (0.07 R)
• M3: 1,297,163 km (0.071 R)
• M4: 3,782,732 km (0.086 R)
• M5: 5,789,737 km (0.097 R)
• M6: 7,316,533 km (0.102 R)
• M7: 8,047,617 km (0.027 R)
• M8: 8,627,608 km (0.117 R)
• M9: 10,126,878 km (0.087 R)
• M10: 15,815,636 km (0.11 R)
• M11: 16,935,526 km (0.027 R)
• M12: 18,271,585 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.1

Radius: 10.3

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.74 AU - 4.28 AU

Year: 4385 Days

Day: 9.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 48,326,455 km

• M1: 128,056 km (0.102 R)
• M2: 607,367 km (0.113 R)
• M3: 1,084,435 km (0.118 R)
• M4: 1,450,052 km (0.068 R)
• M5: 2,232,449 km (0.084 R)
• M6: 2,588,642 km (0.039 R)
• M7: 3,254,950 km (0.101 R)
• M8: 3,871,443 km (0.071 R)
• M9: 4,268,027 km (0.111 R)
• M10: 5,007,639 km (0.036 R)
• M11: 5,422,474 km (0.051 R)
• M12: 5,920,336 km (0.095 R)
• M13: 6,609,683 km (0.057 R)
• M14: 7,075,680 km (0.101 R)
• M15: 9,955,738 km (0.053 R)
• M16: 10,658,549 km (0.111 R)
• M17: 12,610,502 km (0.101 R)
• M18: 13,224,302 km (0.078 R)
• M19: 13,804,293 km (0.069 R)
• M20: 14,401,189 km (0.093 R)
• M21: 15,472,609 km (0.048 R)
• M22: 18,156,843 km (0.063 R)
• M23: 18,545,498 km (0.069 R)
• M24: 20,225,034 km (0.12 R)
• M25: 22,076,756 km (0.04 R)
• M26: 22,668,565 km (0.11 R)
• M27: 23,576,176 km (0.079 R)
• M28: 23,961,390 km (0.08 R)
• M29: 29,005,980 km (0.096 R)
• M30: 29,715,971 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784.5

Radius: 7.8

Gravity: 12.89 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.34 AU - 6.38 AU

Year: 9460 Days

Day: 22.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 48,326,455 km

• M1: 97,089 km (0.09 R)
• M2: 382,971 km (0.081 R)
• M3: 1,122,134 km (0.105 R)
• M4: 3,230,267 km (0.108 R)
• M5: 4,121,870 km (0.11 R)
• M6: 4,580,388 km (0.038 R)
• M7: 5,233,233 km (0.068 R)
• M8: 6,608,187 km (0.115 R)
• M9: 7,036,186 km (0.088 R)
• M10: 7,607,351 km (0.086 R)
• M11: 10,724,372 km (0.063 R)
• M12: 11,535,941 km (0.115 R)
• M13: 13,220,113 km (0.038 R)
• M14: 14,152,707 km (0.089 R)
• M15: 19,247,262 km (0.111 R)
• M16: 24,057,133 km (0.113 R)
• M17: 27,375,962 km (0.107 R)
• M18: 32,629,091 km (0.071 R)
• M19: 35,609,080 km (0.103 R)
• M20: 37,408,294 km (0.117 R)
• M21: 40,411,920 km (0.115 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: 333 - 10,774 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit