🌌 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 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.62 AU - 0.7 AU

Year: 346 Days

Day: 13.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.6

Radius: 14.7

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.81 AU - 0.93 AU

Year: 524 Days

Day: 13.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,500,005 km

• M1: 182,809 km (0.063 R)
• M2: 679,174 km (0.097 R)
• M3: 1,169,556 km (0.102 R)
• M4: 1,699,133 km (0.11 R)
• M5: 2,390,873 km (0.083 R)
• M6: 3,073,039 km (0.057 R)
• M7: 3,758,946 km (0.112 R)
• M8: 4,468,488 km (0.117 R)
• M9: 4,979,066 km (0.093 R)
• M10: 5,493,084 km (0.087 R)
• M11: 6,832,584 km (0.059 R)
• M12: 7,360,814 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.1

Radius: 11.1

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.11 AU - 1.23 AU

Year: 817 Days

Day: 14.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,500,005 km

• M1: 138,228 km (0.059 R)
• M2: 490,980 km (0.054 R)
• M3: 871,258 km (0.099 R)
• M4: 1,236,426 km (0.087 R)
• M5: 1,882,240 km (0.11 R)
• M6: 2,231,402 km (0.064 R)
• M7: 2,801,669 km (0.104 R)
• M8: 3,287,862 km (0.066 R)
• M9: 3,830,154 km (0.089 R)
• M10: 4,754,669 km (0.096 R)
• M11: 5,112,358 km (0.115 R)
• M12: 5,762,061 km (0.056 R)
• M13: 6,169,566 km (0.074 R)
• M14: 6,617,911 km (0.037 R)
• M15: 7,676,764 km (0.094 R)
• M16: 8,221,600 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.7

Radius: 9.1

Gravity: 10.55 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.29 AU - 1.77 AU

Year: 1222 Days

Day: 7.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,500,005 km

• M1: 113,246 km (0.096 R)
• M2: 425,756 km (0.091 R)
• M3: 735,274 km (0.044 R)
• M4: 1,026,541 km (0.056 R)
• M5: 1,766,601 km (0.079 R)
• M6: 2,293,784 km (0.099 R)
• M7: 2,853,579 km (0.089 R)
• M8: 3,613,537 km (0.092 R)
• M9: 4,173,332 km (0.117 R)
• M10: 4,502,298 km (0.106 R)
• M11: 4,988,191 km (0.084 R)
• M12: 5,380,437 km (0.11 R)
• M13: 6,805,955 km (0.055 R)
• M14: 7,185,635 km (0.101 R)
• M15: 7,632,932 km (0.118 R)
• M16: 8,381,669 km (0.113 R)
• M17: 8,700,313 km (0.103 R)
• M18: 9,864,334 km (0.102 R)
• M19: 10,922,440 km (0.105 R)
• M20: 11,268,011 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.1

Radius: 12

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.6 AU - 2.6 AU

Year: 2707 Days

Day: 6.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,500,005 km

• M1: 149,299 km (0.076 R)
• M2: 746,344 km (0.107 R)
• M3: 1,332,618 km (0.089 R)
• M4: 1,762,113 km (0.046 R)
• M5: 2,194,152 km (0.068 R)
• M6: 3,223,834 km (0.102 R)
• M7: 3,645,700 km (0.075 R)
• M8: 4,027,923 km (0.101 R)
• M9: 4,404,461 km (0.119 R)
• M10: 6,829,592 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.3

Radius: 13.1

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.26 AU - 4.3 AU

Year: 4745 Days

Day: 9.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,500,005 km

• M1: 163,510 km (0.113 R)
• M2: 595,100 km (0.103 R)
• M3: 1,224,608 km (0.119 R)
• M4: 1,645,128 km (0.085 R)
• M5: 3,150,082 km (0.119 R)
• M6: 3,704,043 km (0.093 R)
• M7: 4,275,956 km (0.078 R)
• M8: 5,324,787 km (0.076 R)
• M9: 6,055,871 km (0.111 R)
• M10: 6,757,485 km (0.053 R)
• M11: 9,627,670 km (0.111 R)
• M12: 10,371,321 km (0.102 R)
• M13: 11,833,940 km (0.089 R)
• M14: 12,833,702 km (0.107 R)
• M15: 15,607,546 km (0.073 R)
• M16: 16,517,998 km (0.085 R)
• M17: 18,570,182 km (0.111 R)
• M18: 24,968,034 km (0.085 R)
• M19: 26,055,312 km (0.097 R)
• M20: 26,770,838 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336

Radius: 12.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 4.51 AU - 5.51 AU

Year: 7241 Days

Day: 5.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 43,500,005 km

• M1: 150,944 km (0.066 R)
• M2: 580,290 km (0.042 R)
• M3: 985,850 km (0.104 R)
• M4: 1,450,950 km (0.102 R)
• M5: 2,106,188 km (0.039 R)
• M6: 2,562,013 km (0.075 R)
• M7: 3,442,247 km (0.112 R)
• M8: 4,769,031 km (0.078 R)
• M9: 5,169,205 km (0.09 R)
• M10: 5,620,990 km (0.091 R)
• M11: 6,253,939 km (0.114 R)
• M12: 7,344,208 km (0.098 R)
• M13: 7,770,712 km (0.119 R)
• M14: 9,603,435 km (0.115 R)
• M15: 11,852,938 km (0.12 R)
• M16: 12,844,174 km (0.116 R)
• M17: 19,442,487 km (0.099 R)
• M18: 19,985,827 km (0.072 R)
• M19: 21,174,232 km (0.066 R)
• M20: 23,006,806 km (0.088 R)
• M21: 23,538,327 km (0.087 R)
• M22: 26,567,983 km (0.039 R)
• M23: 28,436,012 km (0.115 R)
• M24: 29,491,126 km (0.086 R)
• M25: 30,481,165 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 399.6

Radius: 4.7

Gravity: 18.09 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.86 AU - 7.94 AU

Year: 11703 Days

Day: 17.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 124.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 43,500,005 km

• M1: 58,493 km (0.1 R)
• M2: 205,398 km (0.109 R)
• M3: 358,287 km (0.095 R)
• M4: 972,237 km (0.092 R)
• M5: 1,175,690 km (0.104 R)
• M6: 1,500,317 km (0.112 R)
• M7: 1,773,632 km (0.106 R)
• M8: 2,148,225 km (0.113 R)
• M9: 4,187,544 km (0.055 R)
• M10: 6,304,054 km (0.047 R)
• M11: 7,248,914 km (0.112 R)
• M12: 7,611,091 km (0.083 R)
• M13: 8,241,347 km (0.08 R)
• M14: 10,850,932 km (0.053 R)
• M15: 12,712,977 km (0.065 R)
• M16: 16,294,649 km (0.094 R)
• M17: 16,706,791 km (0.107 R)
• M18: 18,131,112 km (0.12 R)
• M19: 18,872,669 km (0.066 R)
• M20: 20,416,220 km (0.117 R)
• M21: 23,664,438 km (0.033 R)
• M22: 35,099,999 km (0.079 R)
• M23: 36,366,345 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 760.6

Radius: 5.5

Gravity: 25.14 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.93 AU - 9.21 AU

Year: 14802 Days

Day: 22.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,500,005 km

• M1: 71,209 km (0.075 R)
• M2: 248,931 km (0.1 R)
• M3: 482,752 km (0.103 R)
• M4: 1,123,779 km (0.072 R)
• M5: 1,482,066 km (0.087 R)
• M6: 2,279,124 km (0.104 R)
• M7: 12,698,466 km (0.034 R)
• M8: 14,188,311 km (0.101 R)
• M9: 18,415,049 km (0.109 R)
• M10: 23,117,509 km (0.089 R)
• M11: 27,454,650 km (0.044 R)
• M12: 31,579,063 km (0.092 R)
• M13: 42,915,440 km (0.049 R)
• M14: 47,328,877 km (0.052 R)
• M15: 50,378,729 km (0.107 R)
• M16: 61,051,938 km (0.102 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 207.2

Radius: 5.6

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 7.2 AU - 9.6 AU

Year: 15719 Days

Day: 23.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,500,005 km

• M1: 69,713 km (0.056 R)
• M2: 244,293 km (0.105 R)
• M3: 868,715 km (0.041 R)
• M4: 1,254,079 km (0.088 R)
• M5: 1,731,895 km (0.091 R)
• M6: 1,963,771 km (0.087 R)
• M7: 2,645,938 km (0.097 R)
• M8: 3,241,636 km (0.029 R)
• M9: 3,474,710 km (0.088 R)
• M10: 4,521,446 km (0.098 R)
• M11: 5,629,817 km (0.106 R)
• M12: 6,211,603 km (0.038 R)
• M13: 7,334,784 km (0.116 R)
• M14: 7,986,282 km (0.062 R)
• M15: 9,927,464 km (0.098 R)
• M16: 11,189,921 km (0.115 R)
• M17: 14,151,659 km (0.119 R)
• M18: 15,417,706 km (0.031 R)
• M19: 15,811,747 km (0.091 R)
• M20: 18,612,518 km (0.079 R)
• M21: 23,666,982 km (0.074 R)
• M22: 25,536,207 km (0.113 R)
• M23: 32,797,538 km (0.086 R)
• M24: 36,604,654 km (0.113 R)
• M25: 39,219,027 km (0.074 R)
• M26: 39,707,314 km (0.11 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 326 - 14,156 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit