🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.6

Radius: 10.8

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.56 AU - 0.86 AU

Year: 413 Days

Day: 9.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,828,994 km

• M1: 134,339 km (0.099 R)
• M2: 537,804 km (0.077 R)
• M3: 1,044,792 km (0.06 R)
• M4: 1,469,051 km (0.116 R)
• M5: 1,924,427 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.3

Radius: 14.8

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.78 AU - 1.08 AU

Year: 619 Days

Day: 13.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,828,994 km

• M1: 184,005 km (0.108 R)
• M2: 968,497 km (0.082 R)
• M3: 1,659,938 km (0.116 R)
• M4: 2,240,228 km (0.111 R)
• M5: 3,404,698 km (0.065 R)
• M6: 3,953,124 km (0.068 R)
• M7: 4,771,574 km (0.114 R)
• M8: 5,361,588 km (0.034 R)
• M9: 5,875,606 km (0.11 R)
• M10: 6,403,686 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.2

Radius: 9.3

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.14 AU - 1.52 AU

Year: 1059 Days

Day: 8.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,828,994 km

• M1: 115,789 km (0.096 R)
• M2: 740,659 km (0.094 R)
• M3: 1,052,421 km (0.106 R)
• M4: 1,565,691 km (0.102 R)
• M5: 3,151,878 km (0.104 R)
• M6: 4,794,462 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.4

Radius: 14

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.58 AU - 1.88 AU

Year: 1571 Days

Day: 14.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,828,994 km

• M1: 174,431 km (0.053 R)
• M2: 617,989 km (0.049 R)
• M3: 1,189,453 km (0.098 R)
• M4: 2,182,783 km (0.098 R)
• M5: 2,825,605 km (0.116 R)
• M6: 3,276,343 km (0.079 R)
• M7: 4,867,915 km (0.094 R)
• M8: 5,565,639 km (0.085 R)
• M9: 7,161,848 km (0.057 R)
• M10: 8,123,464 km (0.066 R)
• M11: 9,357,496 km (0.086 R)
• M12: 10,782,416 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.3

Radius: 8.8

Gravity: 7.84 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.3 AU - 2.38 AU

Year: 2471 Days

Day: 8.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,828,994 km

• M1: 113,994 km (0.051 R)
• M2: 418,874 km (0.09 R)
• M3: 739,612 km (0.101 R)
• M4: 1,067,381 km (0.059 R)
• M5: 1,388,268 km (0.107 R)
• M6: 2,077,765 km (0.071 R)
• M7: 2,416,604 km (0.096 R)
• M8: 3,792,007 km (0.059 R)
• M9: 4,200,110 km (0.051 R)
• M10: 4,658,777 km (0.089 R)
• M11: 5,457,181 km (0.087 R)
• M12: 6,107,333 km (0.107 R)
• M13: 7,207,027 km (0.11 R)
• M14: 8,628,805 km (0.11 R)
• M15: 9,096,448 km (0.108 R)
• M16: 9,865,381 km (0.109 R)
• M17: 11,099,115 km (0.062 R)
• M18: 11,652,477 km (0.119 R)
• M19: 12,814,254 km (0.063 R)
• M20: 13,735,029 km (0.088 R)
• M21: 14,234,537 km (0.11 R)
• M22: 15,318,224 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.4

Radius: 14.9

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 4.1 AU - 6.56 AU

Year: 8494 Days

Day: 9.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 33,828,994 km

• M1: 185,950 km (0.064 R)
• M2: 670,198 km (0.102 R)
• M3: 1,221,766 km (0.119 R)
• M4: 1,877,902 km (0.109 R)
• M5: 2,581,910 km (0.089 R)
• M6: 3,569,405 km (0.072 R)
• M7: 5,432,497 km (0.103 R)
• M8: 6,256,183 km (0.106 R)
• M9: 7,271,952 km (0.109 R)
• M10: 8,558,793 km (0.081 R)
• M11: 9,409,706 km (0.116 R)
• M12: 10,316,419 km (0.075 R)
• M13: 13,111,805 km (0.099 R)
• M14: 15,377,913 km (0.096 R)
• M15: 17,826,830 km (0.105 R)
• M16: 20,303,124 km (0.115 R)
• M17: 24,310,701 km (0.07 R)
• M18: 25,410,994 km (0.083 R)
• M19: 26,544,197 km (0.035 R)
• M20: 30,533,524 km (0.115 R)
• M21: 31,814,381 km (0.087 R)
• M22: 32,721,841 km (0.051 R)
• M23: 35,763,615 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 493.6

Radius: 5.5

Gravity: 16.32 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.37 AU - 6.61 AU

Year: 10119 Days

Day: 15.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 33,828,994 km

• M1: 72,405 km (0.119 R)
• M2: 601,533 km (0.093 R)
• M3: 855,101 km (0.075 R)
• M4: 1,069,475 km (0.101 R)
• M5: 1,283,400 km (0.106 R)
• M6: 2,171,263 km (0.091 R)
• M7: 2,497,985 km (0.104 R)
• M8: 2,753,947 km (0.108 R)
• M9: 4,277,751 km (0.074 R)
• M10: 5,187,456 km (0.096 R)
• M11: 5,572,072 km (0.068 R)
• M12: 9,597,601 km (0.071 R)
• M13: 10,881,899 km (0.05 R)
• M14: 11,089,092 km (0.118 R)
• M15: 11,351,935 km (0.055 R)
• M16: 11,726,827 km (0.113 R)
• M17: 15,612,034 km (0.062 R)
• M18: 17,169,796 km (0.082 R)
• M19: 18,094,610 km (0.102 R)
• M20: 18,385,728 km (0.112 R)
• M21: 20,043,123 km (0.082 R)
• M22: 22,376,700 km (0.057 R)
• M23: 22,881,144 km (0.095 R)
• M24: 24,706,388 km (0.056 R)
• M25: 27,288,297 km (0.08 R)
• M26: 28,644,103 km (0.112 R)
• M27: 29,438,767 km (0.05 R)
• M28: 31,176,047 km (0.062 R)
• M29: 31,384,736 km (0.1 R)
• M30: 35,644,834 km (0.054 R)
• M31: 40,398,307 km (0.031 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 227.1

Radius: 3.5

Gravity: 18.54 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 5.39 AU - 6.73 AU

Year: 10297 Days

Day: 15.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 33,828,994 km

• M1: 43,533 km (0.116 R)
• M2: 189,840 km (0.105 R)
• M3: 321,935 km (0.118 R)
• M4: 672,293 km (0.07 R)
• M5: 876,045 km (0.112 R)
• M6: 1,089,521 km (0.106 R)
• M7: 1,383,182 km (0.086 R)
• M8: 1,727,257 km (0.087 R)
• M9: 1,839,455 km (0.047 R)
• M10: 3,803,376 km (0.08 R)
• M11: 5,363,532 km (0.104 R)
• M12: 6,202,029 km (0.114 R)
• M13: 7,341,216 km (0.09 R)
• M14: 7,787,916 km (0.099 R)
• M15: 8,331,554 km (0.094 R)
• M16: 9,494,229 km (0.08 R)
• M17: 11,983,089 km (0.098 R)
• M18: 12,653,885 km (0.063 R)
• M19: 13,186,604 km (0.086 R)
• M20: 17,799,753 km (0.044 R)
• M21: 19,783,570 km (0.049 R)
• M22: 23,541,469 km (0.047 R)
• M23: 24,183,842 km (0.112 R)
• M24: 27,926,482 km (0.119 R)
• M25: 28,464,884 km (0.055 R)
• M26: 28,646,047 km (0.05 R)
• M27: 32,528,411 km (0.104 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: 331 - 10,580 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit