🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.4

Radius: 11.1

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.49 AU - 0.77 AU

Year: 345 Days

Day: 14.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,588,991 km

• M1: 138,079 km (0.048 R)
• M2: 490,382 km (0.045 R)
• M3: 926,310 km (0.075 R)
• M4: 1,286,691 km (0.112 R)
• M5: 1,707,360 km (0.094 R)
• M6: 2,220,032 km (0.102 R)
• M7: 2,617,364 km (0.12 R)
• M8: 2,988,068 km (0.087 R)
• M9: 3,359,819 km (0.099 R)
• M10: 3,799,786 km (0.108 R)
• M11: 4,738,064 km (0.091 R)
• M12: 5,324,188 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.1

Radius: 11.6

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.6 AU - 0.86 AU

Year: 431 Days

Day: 13.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,588,991 km

• M1: 144,212 km (0.115 R)
• M2: 567,874 km (0.076 R)
• M3: 929,900 km (0.113 R)
• M4: 1,294,919 km (0.048 R)
• M5: 2,147,926 km (0.04 R)
• M6: 2,624,695 km (0.06 R)
• M7: 3,039,081 km (0.057 R)
• M8: 3,643,456 km (0.09 R)
• M9: 4,027,773 km (0.049 R)
• M10: 4,439,018 km (0.045 R)
• M11: 5,108,917 km (0.088 R)
• M12: 5,493,234 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462.1

Radius: 13.7

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.81 AU - 1.03 AU

Year: 609 Days

Day: 6.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,588,991 km

• M1: 170,990 km (0.093 R)
• M2: 620,083 km (0.074 R)
• M3: 1,071,869 km (0.111 R)
• M4: 2,050,987 km (0.098 R)
• M5: 3,131,831 km (0.112 R)
• M6: 3,781,086 km (0.091 R)
• M7: 4,300,640 km (0.074 R)
• M8: 5,301,001 km (0.078 R)
• M9: 5,830,128 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.7

Radius: 10.5

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.6 AU - 2.44 AU

Year: 1982 Days

Day: 8.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,588,991 km

• M1: 130,599 km (0.08 R)
• M2: 721,211 km (0.05 R)
• M3: 1,258,417 km (0.118 R)
• M4: 1,708,258 km (0.044 R)
• M5: 2,410,770 km (0.074 R)
• M6: 2,937,354 km (0.09 R)
• M7: 3,278,886 km (0.071 R)
• M8: 4,658,926 km (0.117 R)
• M9: 5,103,232 km (0.09 R)
• M10: 6,051,683 km (0.057 R)
• M11: 6,392,616 km (0.066 R)
• M12: 6,858,015 km (0.115 R)
• M13: 9,017,161 km (0.079 R)
• M14: 10,511,195 km (0.11 R)
• M15: 10,851,680 km (0.1 R)
• M16: 12,623,966 km (0.114 R)
• M17: 13,270,079 km (0.086 R)
• M18: 14,442,029 km (0.054 R)
• M19: 17,042,788 km (0.099 R)
• M20: 18,100,594 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.6

Radius: 10.7

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.41 AU - 2.69 AU

Year: 2811 Days

Day: 11.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,588,991 km

• M1: 133,142 km (0.052 R)
• M2: 474,076 km (0.077 R)
• M3: 845,228 km (0.112 R)
• M4: 2,161,839 km (0.114 R)
• M5: 2,607,790 km (0.103 R)
• M6: 3,331,844 km (0.111 R)
• M7: 4,066,070 km (0.098 R)
• M8: 7,268,362 km (0.087 R)
• M9: 15,229,213 km (0.057 R)
• M10: 17,659,131 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893

Radius: 8.3

Gravity: 12.96 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.19 AU - 3.51 AU

Year: 3321 Days

Day: 8 Hours

Environment

Temp: -205 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 60,588,991 km

• M1: 103,223 km (0.094 R)
• M2: 440,416 km (0.075 R)
• M3: 706,850 km (0.11 R)
• M4: 1,051,823 km (0.085 R)
• M5: 1,339,350 km (0.107 R)
• M6: 1,903,633 km (0.077 R)
• M7: 2,248,157 km (0.084 R)
• M8: 2,569,343 km (0.09 R)
• M9: 3,599,325 km (0.097 R)
• M10: 4,589,812 km (0.078 R)
• M11: 5,477,975 km (0.039 R)
• M12: 5,977,333 km (0.108 R)
• M13: 7,524,175 km (0.113 R)
• M14: 8,071,104 km (0.076 R)
• M15: 8,866,217 km (0.067 R)
• M16: 9,437,531 km (0.12 R)
• M17: 11,744,181 km (0.07 R)
• M18: 13,344,429 km (0.083 R)
• M19: 14,043,949 km (0.059 R)
• M20: 15,789,008 km (0.102 R)
• M21: 18,334,266 km (0.095 R)
• M22: 18,639,745 km (0.1 R)
• M23: 19,324,006 km (0.119 R)
• M24: 21,007,580 km (0.116 R)
• M25: 23,353,724 km (0.116 R)
• M26: 23,712,908 km (0.118 R)
• M27: 24,442,347 km (0.036 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.8

Radius: 11.3

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.85 AU - 3.03 AU

Year: 3480 Days

Day: 12.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,588,991 km

• M1: 144,960 km (0.078 R)
• M2: 527,033 km (0.075 R)
• M3: 900,729 km (0.038 R)
• M4: 1,282,054 km (0.103 R)
• M5: 1,679,535 km (0.112 R)
• M6: 2,257,881 km (0.092 R)
• M7: 3,159,806 km (0.076 R)
• M8: 3,554,745 km (0.118 R)
• M9: 3,961,651 km (0.087 R)
• M10: 4,607,166 km (0.063 R)
• M11: 6,908,878 km (0.076 R)
• M12: 9,851,169 km (0.114 R)
• M13: 11,641,557 km (0.097 R)
• M14: 12,406,151 km (0.098 R)
• M15: 13,108,214 km (0.111 R)
• M16: 14,540,464 km (0.098 R)
• M17: 17,948,453 km (0.105 R)
• M18: 19,029,896 km (0.1 R)
• M19: 20,538,591 km (0.064 R)
• M20: 21,058,892 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 571.4

Radius: 3.2

Gravity: 55.8 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 6.07 AU - 9.89 AU

Year: 15560 Days

Day: 22.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 60,588,991 km

• M1: 39,793 km (0.067 R)
• M2: 179,069 km (0.094 R)
• M3: 297,251 km (0.089 R)
• M4: 509,830 km (0.103 R)
• M5: 757,414 km (0.041 R)
• M6: 1,091,765 km (0.095 R)
• M7: 1,231,639 km (0.083 R)
• M8: 1,642,136 km (0.11 R)
• M9: 1,896,452 km (0.105 R)
• M10: 3,714,964 km (0.052 R)
• M11: 4,493,770 km (0.112 R)
• M12: 6,286,103 km (0.08 R)
• M13: 6,652,767 km (0.089 R)
• M14: 7,837,732 km (0.119 R)
• M15: 8,214,269 km (0.058 R)
• M16: 10,390,919 km (0.115 R)
• M17: 12,286,623 km (0.118 R)
• M18: 13,581,542 km (0.036 R)
• M19: 14,331,177 km (0.048 R)
• M20: 18,744,464 km (0.106 R)
• M21: 21,802,693 km (0.115 R)
• M22: 30,809,083 km (0.087 R)
• M23: 34,411,400 km (0.11 R)
• M24: 37,619,676 km (0.07 R)
• M25: 41,021,681 km (0.065 R)
• M26: 47,806,393 km (0.08 R)
• M27: 49,215,755 km (0.105 R)
• M28: 49,850,947 km (0.098 R)
• M29: 52,446,470 km (0.068 R)
• M30: 55,301,396 km (0.12 R)
• M31: 57,377,815 km (0.117 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: 211 - 14,697 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit