🌌 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: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.4

Radius: 8.8

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.65 AU - 0.93 AU

Year: 461 Days

Day: 9.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,376,478 km

• M1: 109,506 km (0.114 R)
• M2: 411,544 km (0.101 R)
• M3: 762,052 km (0.119 R)
• M4: 1,117,646 km (0.103 R)
• M5: 1,605,036 km (0.111 R)
• M6: 1,915,152 km (0.102 R)
• M7: 2,284,060 km (0.116 R)
• M8: 2,596,570 km (0.042 R)
• M9: 3,697,760 km (0.098 R)
• M10: 4,259,051 km (0.102 R)
• M11: 5,655,099 km (0.067 R)
• M12: 5,992,741 km (0.079 R)
• M13: 6,419,394 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.5

Radius: 9.2

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.9 AU - 0.9 AU

Year: 560 Days

Day: 14.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,376,478 km

• M1: 115,938 km (0.088 R)
• M2: 433,834 km (0.092 R)
• M3: 906,563 km (0.111 R)
• M4: 1,368,821 km (0.116 R)
• M5: 2,018,973 km (0.116 R)
• M6: 2,353,922 km (0.1 R)
• M7: 3,403,052 km (0.116 R)
• M8: 3,809,659 km (0.038 R)
• M9: 4,248,580 km (0.059 R)
• M10: 5,175,638 km (0.084 R)
• M11: 5,752,188 km (0.079 R)
• M12: 7,425,739 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.3

Radius: 12.5

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1 AU - 1.2 AU

Year: 757 Days

Day: 12.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,376,478 km

• M1: 156,629 km (0.108 R)
• M2: 596,746 km (0.118 R)
• M3: 1,068,578 km (0.118 R)
• M4: 1,483,113 km (0.107 R)
• M5: 1,961,527 km (0.067 R)
• M6: 2,488,411 km (0.044 R)
• M7: 3,108,943 km (0.109 R)
• M8: 3,587,656 km (0.07 R)
• M9: 4,813,910 km (0.107 R)
• M10: 6,098,357 km (0.109 R)
• M11: 7,231,262 km (0.116 R)
• M12: 7,788,514 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.7

Radius: 10.3

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.32 AU - 1.74 AU

Year: 1241 Days

Day: 13.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,376,478 km

• M1: 128,355 km (0.091 R)
• M2: 606,619 km (0.094 R)
• M3: 1,341,295 km (0.075 R)
• M4: 2,044,405 km (0.05 R)
• M5: 2,462,381 km (0.078 R)
• M6: 3,210,969 km (0.113 R)
• M7: 4,104,517 km (0.102 R)
• M8: 4,573,656 km (0.101 R)
• M9: 4,905,913 km (0.096 R)
• M10: 5,893,707 km (0.1 R)
• M11: 7,835,936 km (0.108 R)
• M12: 8,259,598 km (0.081 R)
• M13: 9,182,018 km (0.07 R)
• M14: 9,743,459 km (0.086 R)
• M15: 10,140,641 km (0.098 R)
• M16: 11,032,993 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.7

Radius: 11.9

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.75 AU - 1.85 AU

Year: 1584 Days

Day: 8.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,376,478 km

• M1: 147,952 km (0.031 R)
• M2: 794,514 km (0.114 R)
• M3: 1,208,302 km (0.104 R)
• M4: 1,751,043 km (0.113 R)
• M5: 2,374,268 km (0.071 R)
• M6: 2,980,588 km (0.116 R)
• M7: 3,508,668 km (0.114 R)
• M8: 4,975,027 km (0.091 R)
• M9: 5,438,182 km (0.07 R)
• M10: 6,518,727 km (0.062 R)
• M11: 7,787,766 km (0.105 R)
• M12: 9,017,311 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973

Radius: 10.2

Gravity: 9.35 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.04 AU - 2.86 AU

Year: 2516 Days

Day: 8.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,376,478 km

• M1: 126,859 km (0.115 R)
• M2: 460,313 km (0.093 R)
• M3: 826,229 km (0.103 R)
• M4: 1,156,242 km (0.093 R)
• M5: 1,742,366 km (0.12 R)
• M6: 2,592,232 km (0.111 R)
• M7: 3,025,467 km (0.115 R)
• M8: 3,525,423 km (0.043 R)
• M9: 4,600,583 km (0.061 R)
• M10: 4,948,099 km (0.067 R)
• M11: 5,438,930 km (0.077 R)
• M12: 6,347,737 km (0.102 R)
• M13: 6,987,717 km (0.107 R)
• M14: 7,961,898 km (0.118 R)
• M15: 9,060,096 km (0.11 R)
• M16: 11,096,721 km (0.119 R)
• M17: 12,331,951 km (0.031 R)
• M18: 13,894,052 km (0.112 R)
• M19: 15,073,631 km (0.113 R)
• M20: 15,948,479 km (0.114 R)
• M21: 16,966,044 km (0.102 R)
• M22: 17,518,808 km (0.061 R)
• M23: 20,588,407 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.9

Radius: 8.1

Gravity: 10.29 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.47 AU - 5.29 AU

Year: 7072 Days

Day: 14.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 67,376,478 km

• M1: 100,679 km (0.12 R)
• M2: 421,268 km (0.099 R)
• M3: 705,055 km (0.074 R)
• M4: 993,330 km (0.108 R)
• M5: 1,361,341 km (0.04 R)
• M6: 2,741,381 km (0.106 R)
• M7: 3,800,085 km (0.095 R)
• M8: 5,595,858 km (0.109 R)
• M9: 6,451,707 km (0.093 R)
• M10: 7,093,482 km (0.052 R)
• M11: 8,587,217 km (0.096 R)
• M12: 11,457,252 km (0.062 R)
• M13: 11,816,885 km (0.072 R)
• M14: 12,451,031 km (0.067 R)
• M15: 13,051,965 km (0.109 R)
• M16: 13,501,208 km (0.058 R)
• M17: 17,338,842 km (0.101 R)
• M18: 17,608,866 km (0.081 R)
• M19: 18,576,316 km (0.115 R)
• M20: 18,859,056 km (0.119 R)
• M21: 23,535,784 km (0.063 R)
• M22: 24,793,902 km (0.072 R)
• M23: 25,136,930 km (0.085 R)
• M24: 28,554,643 km (0.106 R)
• M25: 29,599,136 km (0.079 R)
• M26: 29,985,098 km (0.034 R)
• M27: 35,530,392 km (0.093 R)
• M28: 36,185,780 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 746.5

Radius: 6.3

Gravity: 18.81 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.6 AU - 7.88 AU

Year: 11479 Days

Day: 19.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 67,376,478 km

• M1: 78,988 km (0.092 R)
• M2: 291,267 km (0.095 R)
• M3: 922,121 km (0.096 R)
• M4: 1,165,068 km (0.119 R)
• M5: 1,750,145 km (0.113 R)
• M6: 2,018,823 km (0.065 R)
• M7: 3,799,936 km (0.089 R)
• M8: 4,553,909 km (0.079 R)
• M9: 5,792,729 km (0.105 R)
• M10: 7,803,175 km (0.032 R)
• M11: 9,663,274 km (0.092 R)
• M12: 10,237,281 km (0.102 R)
• M13: 10,723,475 km (0.067 R)
• M14: 14,635,608 km (0.053 R)
• M15: 15,958,203 km (0.083 R)
• M16: 27,415,755 km (0.045 R)
• M17: 27,933,513 km (0.114 R)
• M18: 31,065,793 km (0.085 R)
• M19: 33,240,348 km (0.068 R)
• M20: 36,253,249 km (0.038 R)
• M21: 37,507,777 km (0.052 R)
• M22: 38,274,166 km (0.118 R)
• M23: 42,126,461 km (0.049 R)
• M24: 43,934,202 km (0.112 R)
• M25: 46,815,457 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 202.1

Radius: 3.9

Gravity: 13.29 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 7.7 AU - 7.7 AU

Year: 14017 Days

Day: 17.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,376,478 km

• M1: 56,698 km (0.048 R)
• M2: 462,108 km (0.059 R)
• M3: 621,280 km (0.09 R)
• M4: 2,170,366 km (0.099 R)
• M5: 2,759,632 km (0.078 R)
• M6: 3,222,189 km (0.036 R)
• M7: 4,246,036 km (0.107 R)
• M8: 4,659,076 km (0.111 R)
• M9: 7,597,627 km (0.118 R)
• M10: 17,433,238 km (0.026 R)
• M11: 20,409,637 km (0.102 R)
• M12: 20,871,745 km (0.113 R)
• M13: 29,148,248 km (0.089 R)
• M14: 30,527,540 km (0.037 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 732.7

Radius: 6.1

Gravity: 19.69 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 8.18 AU - 8.72 AU

Year: 16114 Days

Day: 17.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 67,376,478 km

• M1: 75,846 km (0.111 R)
• M2: 356,791 km (0.119 R)
• M3: 938,128 km (0.105 R)
• M4: 1,856,809 km (0.071 R)
• M5: 2,429,021 km (0.096 R)
• M6: 2,721,036 km (0.104 R)
• M7: 3,653,330 km (0.099 R)
• M8: 4,068,015 km (0.077 R)
• M9: 4,447,993 km (0.027 R)
• M10: 4,748,236 km (0.052 R)
• M11: 5,426,663 km (0.069 R)
• M12: 5,769,840 km (0.118 R)
• M13: 8,488,482 km (0.095 R)
• M14: 12,150,040 km (0.083 R)
• M15: 13,968,402 km (0.096 R)
• M16: 17,389,556 km (0.114 R)
• M17: 17,718,372 km (0.103 R)
• M18: 18,643,784 km (0.081 R)
• M19: 21,330,861 km (0.088 R)
• M20: 21,992,981 km (0.104 R)
• M21: 24,883,063 km (0.077 R)
• M22: 25,510,925 km (0.083 R)
• M23: 26,149,558 km (0.035 R)
• M24: 26,364,680 km (0.113 R)
• M25: 30,088,171 km (0.054 R)
• M26: 38,141,772 km (0.116 R)
• M27: 46,725,549 km (0.105 R)
• M28: 52,653,065 km (0.103 R)
• M29: 57,595,629 km (0.035 R)
• M30: 58,693,677 km (0.082 R)
• M31: 61,309,546 km (0.095 R)
• M32: 64,589,180 km (0.095 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 14,517 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit