🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.6

Radius: 13.1

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.7 AU - 1.02 AU

Year: 561 Days

Day: 10.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,163,502 km

• M1: 162,912 km (0.087 R)
• M2: 750,682 km (0.103 R)
• M3: 1,256,473 km (0.055 R)
• M4: 1,930,710 km (0.084 R)
• M5: 2,494,993 km (0.076 R)
• M6: 4,749,732 km (0.075 R)
• M7: 5,205,707 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.6

Radius: 12

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.98 AU - 1.08 AU

Year: 735 Days

Day: 10.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,163,502 km

• M1: 149,897 km (0.099 R)
• M2: 1,085,781 km (0.107 R)
• M3: 1,460,075 km (0.039 R)
• M4: 1,892,413 km (0.099 R)
• M5: 2,357,363 km (0.048 R)
• M6: 2,778,032 km (0.116 R)
• M7: 3,172,223 km (0.118 R)
• M8: 3,773,008 km (0.105 R)
• M9: 5,326,283 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.1

Radius: 14.8

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.01 AU - 1.37 AU

Year: 912 Days

Day: 7.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,163,502 km

• M1: 184,753 km (0.08 R)
• M2: 689,796 km (0.116 R)
• M3: 1,156,990 km (0.037 R)
• M4: 2,227,512 km (0.119 R)
• M5: 3,548,761 km (0.043 R)
• M6: 4,129,350 km (0.099 R)
• M7: 5,284,694 km (0.106 R)
• M8: 5,832,971 km (0.066 R)
• M9: 6,532,041 km (0.063 R)
• M10: 7,261,929 km (0.117 R)
• M11: 10,024,254 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.8

Radius: 12.2

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.12 AU - 1.34 AU

Year: 959 Days

Day: 14.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,163,502 km

• M1: 151,991 km (0.06 R)
• M2: 825,780 km (0.09 R)
• M3: 1,444,517 km (0.039 R)
• M4: 3,262,730 km (0.103 R)
• M5: 4,959,618 km (0.049 R)
• M6: 5,423,372 km (0.051 R)
• M7: 6,304,952 km (0.084 R)
• M8: 6,850,236 km (0.054 R)
• M9: 7,626,200 km (0.106 R)
• M10: 9,382,180 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.2

Radius: 10.5

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.62 AU - 1.8 AU

Year: 1572 Days

Day: 5.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,163,502 km

• M1: 130,749 km (0.031 R)
• M2: 539,001 km (0.088 R)
• M3: 989,440 km (0.075 R)
• M4: 1,413,550 km (0.056 R)
• M5: 2,347,639 km (0.118 R)
• M6: 3,868,900 km (0.071 R)
• M7: 4,279,696 km (0.115 R)
• M8: 4,737,765 km (0.094 R)
• M9: 6,113,915 km (0.085 R)
• M10: 6,513,192 km (0.052 R)
• M11: 7,413,472 km (0.036 R)
• M12: 9,315,310 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.4

Radius: 11.3

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 3.6 AU - 4.3 AU

Year: 5518 Days

Day: 11 Hours

Environment

Temp: -213 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,163,502 km

• M1: 145,708 km (0.066 R)
• M2: 794,664 km (0.095 R)
• M3: 2,258,329 km (0.105 R)
• M4: 3,200,497 km (0.114 R)
• M5: 4,294,057 km (0.113 R)
• M6: 4,750,780 km (0.084 R)
• M7: 6,021,613 km (0.082 R)
• M8: 6,626,288 km (0.07 R)
• M9: 7,237,994 km (0.068 R)
• M10: 8,207,837 km (0.104 R)
• M11: 10,704,176 km (0.118 R)
• M12: 11,776,195 km (0.097 R)
• M13: 14,768,003 km (0.092 R)
• M14: 15,477,396 km (0.104 R)
• M15: 16,496,905 km (0.12 R)
• M16: 17,864,230 km (0.098 R)
• M17: 21,507,387 km (0.104 R)
• M18: 22,561,453 km (0.065 R)
• M19: 26,642,633 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.1

Radius: 12.8

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.36 AU - 5.2 AU

Year: 7346 Days

Day: 5.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,163,502 km

• M1: 160,070 km (0.074 R)
• M2: 724,802 km (0.036 R)
• M3: 1,430,305 km (0.113 R)
• M4: 2,229,906 km (0.048 R)
• M5: 3,458,254 km (0.115 R)
• M6: 4,027,175 km (0.117 R)
• M7: 5,209,447 km (0.108 R)
• M8: 8,017,548 km (0.099 R)
• M9: 8,448,241 km (0.098 R)
• M10: 10,465,867 km (0.097 R)
• M11: 10,981,082 km (0.073 R)
• M12: 12,215,414 km (0.032 R)
• M13: 13,871,762 km (0.116 R)
• M14: 15,253,597 km (0.088 R)
• M15: 16,788,621 km (0.105 R)
• M16: 18,356,856 km (0.052 R)
• M17: 19,949,325 km (0.105 R)
• M18: 20,597,084 km (0.116 R)
• M19: 21,707,549 km (0.095 R)
• M20: 22,935,598 km (0.085 R)
• M21: 29,686,949 km (0.076 R)
• M22: 31,007,450 km (0.025 R)
• M23: 32,268,410 km (0.096 R)
• M24: 33,261,441 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745.2

Radius: 6.2

Gravity: 19.39 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 7.31 AU - 7.41 AU

Year: 14035 Days

Day: 22.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 150.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,163,502 km

• M1: 77,043 km (0.076 R)
• M2: 359,484 km (0.087 R)
• M3: 570,865 km (0.109 R)
• M4: 888,312 km (0.107 R)
• M5: 1,238,820 km (0.033 R)
• M6: 1,951,654 km (0.043 R)
• M7: 2,723,429 km (0.051 R)
• M8: 3,490,717 km (0.037 R)
• M9: 3,766,575 km (0.06 R)
• M10: 4,488,535 km (0.034 R)
• M11: 6,322,904 km (0.107 R)
• M12: 7,338,524 km (0.107 R)
• M13: 12,182,054 km (0.055 R)
• M14: 13,012,920 km (0.087 R)
• M15: 13,342,335 km (0.109 R)
• M16: 13,677,285 km (0.089 R)
• M17: 15,806,212 km (0.12 R)
• M18: 17,027,379 km (0.081 R)
• M19: 19,484,225 km (0.118 R)
• M20: 20,353,090 km (0.114 R)
• M21: 23,018,624 km (0.086 R)
• M22: 27,064,499 km (0.072 R)
• M23: 28,807,464 km (0.117 R)
• M24: 41,567,564 km (0.088 R)
• M25: 43,882,740 km (0.095 R)
• M26: 59,965,259 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 642.3

Radius: 6.7

Gravity: 14.31 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 6.5 AU - 10.06 AU

Year: 16748 Days

Day: 19.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,163,502 km

• M1: 90,656 km (0.102 R)
• M2: 396,584 km (0.107 R)
• M3: 1,549,535 km (0.116 R)
• M4: 3,376,424 km (0.043 R)
• M5: 5,673,948 km (0.09 R)
• M6: 7,529,111 km (0.05 R)
• M7: 13,448,849 km (0.069 R)
• M8: 15,082,308 km (0.12 R)
• M9: 15,984,981 km (0.096 R)
• M10: 23,041,513 km (0.09 R)
• M11: 24,850,600 km (0.075 R)
• M12: 27,078,262 km (0.099 R)
• M13: 27,627,735 km (0.061 R)
• M14: 29,090,952 km (0.112 R)
• M15: 34,683,369 km (0.094 R)
• M16: 37,594,693 km (0.084 R)
• M17: 47,298,808 km (0.119 R)
• M18: 53,579,076 km (0.046 R)
• M19: 54,270,816 km (0.058 R)
• M20: 58,912,988 km (0.119 R)
• M21: 66,163,548 km (0.119 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 318 - 18,062 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit