🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.6

Radius: 8.1

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.66 AU - 0.94 AU

Year: 469 Days

Day: 5.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,878,362 km

• M1: 100,679 km (0.094 R)
• M2: 385,963 km (0.107 R)
• M3: 700,567 km (0.112 R)
• M4: 1,174,493 km (0.117 R)
• M5: 1,637,049 km (0.119 R)
• M6: 2,136,108 km (0.06 R)
• M7: 2,525,511 km (0.062 R)
• M8: 2,988,666 km (0.093 R)
• M9: 3,269,761 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.3

Radius: 10.1

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.81 AU - 0.91 AU

Year: 523 Days

Day: 5.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,878,362 km

• M1: 128,355 km (0.091 R)
• M2: 444,605 km (0.11 R)
• M3: 900,729 km (0.062 R)
• M4: 1,250,189 km (0.074 R)
• M5: 1,588,281 km (0.115 R)
• M6: 2,030,791 km (0.048 R)
• M7: 2,464,775 km (0.114 R)
• M8: 2,784,166 km (0.097 R)
• M9: 3,445,239 km (0.093 R)
• M10: 3,819,982 km (0.099 R)
• M11: 4,575,750 km (0.111 R)
• M12: 5,045,936 km (0.041 R)
• M13: 5,600,346 km (0.09 R)
• M14: 6,555,678 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.7

Radius: 9.3

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.71 AU - 1.09 AU

Year: 560 Days

Day: 12.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,878,362 km

• M1: 115,639 km (0.071 R)
• M2: 451,337 km (0.108 R)
• M3: 746,793 km (0.028 R)
• M4: 1,114,953 km (0.086 R)
• M5: 1,438,384 km (0.091 R)
• M6: 1,777,821 km (0.052 R)
• M7: 2,245,464 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.5

Radius: 10.7

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.73 AU - 1.13 AU

Year: 588 Days

Day: 12 Hours

Environment

Temp: -158 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,878,362 km

• M1: 133,591 km (0.098 R)
• M2: 1,019,061 km (0.071 R)
• M3: 1,451,548 km (0.085 R)
• M4: 2,155,556 km (0.099 R)
• M5: 2,512,646 km (0.079 R)
• M6: 3,083,811 km (0.067 R)
• M7: 4,137,428 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.9

Radius: 14.4

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.77 AU - 2.15 AU

Year: 1800 Days

Day: 5 Hours

Environment

Temp: -187 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,878,362 km

• M1: 182,659 km (0.107 R)
• M2: 1,337,255 km (0.034 R)
• M3: 2,074,174 km (0.104 R)
• M4: 2,799,275 km (0.066 R)
• M5: 3,453,916 km (0.105 R)
• M6: 4,351,652 km (0.083 R)
• M7: 5,358,596 km (0.057 R)
• M8: 7,204,484 km (0.052 R)
• M9: 8,078,435 km (0.082 R)
• M10: 9,322,042 km (0.082 R)
• M11: 10,006,003 km (0.107 R)
• M12: 11,404,594 km (0.079 R)
• M13: 11,862,962 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.5

Radius: 14.9

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.6 AU - 3.41 AU

Year: 3409 Days

Day: 11.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,878,362 km

• M1: 188,643 km (0.112 R)
• M2: 898,186 km (0.081 R)
• M3: 1,521,560 km (0.07 R)
• M4: 2,119,652 km (0.108 R)
• M5: 2,614,522 km (0.081 R)
• M6: 3,782,283 km (0.106 R)
• M7: 5,274,671 km (0.117 R)
• M8: 7,226,624 km (0.054 R)
• M9: 11,872,835 km (0.033 R)
• M10: 14,050,082 km (0.116 R)
• M11: 15,876,822 km (0.053 R)
• M12: 16,371,243 km (0.046 R)
• M13: 17,681,421 km (0.109 R)
• M14: 19,681,993 km (0.068 R)
• M15: 23,345,496 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.8

Radius: 8.2

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.26 AU - 5.62 AU

Year: 8324 Days

Day: 8.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,878,362 km

• M1: 102,026 km (0.071 R)
• M2: 371,302 km (0.115 R)
• M3: 816,804 km (0.12 R)
• M4: 1,132,456 km (0.039 R)
• M5: 1,686,118 km (0.109 R)
• M6: 2,773,694 km (0.095 R)
• M7: 3,091,590 km (0.07 R)
• M8: 5,092,012 km (0.074 R)
• M9: 7,599,422 km (0.11 R)
• M10: 9,939,133 km (0.102 R)
• M11: 12,667,050 km (0.114 R)
• M12: 15,733,208 km (0.104 R)
• M13: 23,527,856 km (0.112 R)
• M14: 24,184,590 km (0.072 R)
• M15: 32,944,293 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 912.1

Radius: 4.7

Gravity: 41.29 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 6.63 AU - 9.55 AU

Year: 15095 Days

Day: 22.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 70,878,362 km

• M1: 59,839 km (0.078 R)
• M2: 207,343 km (0.08 R)
• M3: 462,856 km (0.119 R)
• M4: 1,646,624 km (0.102 R)
• M5: 2,416,604 km (0.072 R)
• M6: 2,880,806 km (0.06 R)
• M7: 3,239,691 km (0.103 R)
• M8: 3,862,916 km (0.051 R)
• M9: 4,139,672 km (0.071 R)
• M10: 4,331,457 km (0.079 R)
• M11: 4,871,954 km (0.106 R)
• M12: 5,380,886 km (0.119 R)
• M13: 6,127,080 km (0.098 R)
• M14: 6,807,002 km (0.088 R)
• M15: 7,489,019 km (0.038 R)
• M16: 7,968,181 km (0.097 R)
• M17: 8,882,074 km (0.082 R)
• M18: 9,040,798 km (0.104 R)
• M19: 9,976,981 km (0.079 R)
• M20: 13,034,014 km (0.092 R)
• M21: 13,308,227 km (0.085 R)
• M22: 14,589,532 km (0.073 R)
• M23: 14,736,886 km (0.079 R)
• M24: 14,885,138 km (0.109 R)
• M25: 18,148,615 km (0.091 R)
• M26: 18,319,007 km (0.117 R)
• M27: 19,991,362 km (0.098 R)
• M28: 21,098,536 km (0.085 R)
• M29: 22,148,713 km (0.098 R)
• M30: 25,829,120 km (0.07 R)
• M31: 31,588,039 km (0.044 R)
• M32: 33,087,309 km (0.07 R)
• M33: 35,159,090 km (0.106 R)
• M34: 38,566,780 km (0.12 R)
• M35: 45,400,261 km (0.066 R)
• M36: 45,557,189 km (0.039 R)
• M37: 47,146,068 km (0.06 R)
• M38: 54,754,466 km (0.101 R)
• M39: 57,461,739 km (0.103 R)
• M40: 58,013,605 km (0.078 R)
• M41: 61,591,687 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 722.7

Radius: 7.2

Gravity: 13.94 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 7.43 AU - 10.43 AU

Year: 17506 Days

Day: 18.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 70,878,362 km

• M1: 92,601 km (0.09 R)
• M2: 431,291 km (0.081 R)
• M3: 1,676,992 km (0.079 R)
• M4: 1,906,924 km (0.05 R)
• M5: 2,137,754 km (0.115 R)
• M6: 2,542,117 km (0.036 R)
• M7: 4,897,385 km (0.105 R)
• M8: 5,409,459 km (0.083 R)
• M9: 7,024,817 km (0.104 R)
• M10: 9,758,718 km (0.047 R)
• M11: 10,628,330 km (0.109 R)
• M12: 10,990,357 km (0.102 R)
• M13: 12,125,805 km (0.115 R)
• M14: 12,388,499 km (0.08 R)
• M15: 12,654,933 km (0.054 R)
• M16: 15,000,777 km (0.102 R)
• M17: 15,765,372 km (0.092 R)
• M18: 22,742,915 km (0.065 R)
• M19: 23,751,056 km (0.117 R)
• M20: 31,286,899 km (0.117 R)
• M21: 35,256,927 km (0.095 R)
• M22: 36,062,212 km (0.078 R)
• M23: 37,293,104 km (0.112 R)
• M24: 38,693,340 km (0.087 R)
• M25: 60,973,998 km (0.089 R)
• M26: 66,105,354 km (0.068 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 19,720 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit