🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603

Radius: 12.8

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.53 AU - 0.71 AU

Year: 343 Days

Day: 13.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,559,899 km

• M1: 159,322 km (0.107 R)
• M2: 578,196 km (0.036 R)
• M3: 1,113,008 km (0.106 R)
• M4: 1,551,480 km (0.12 R)
• M5: 2,154,509 km (0.12 R)
• M6: 3,400,360 km (0.106 R)
• M7: 4,106,162 km (0.047 R)
• M8: 4,780,998 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.3

Radius: 10.1

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.67 AU - 1.11 AU

Year: 590 Days

Day: 8.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,559,899 km

• M1: 125,662 km (0.094 R)
• M2: 453,880 km (0.115 R)
• M3: 918,681 km (0.075 R)
• M4: 1,546,094 km (0.062 R)
• M5: 1,908,420 km (0.08 R)
• M6: 2,449,665 km (0.078 R)
• M7: 2,830,841 km (0.116 R)
• M8: 3,289,508 km (0.087 R)
• M9: 3,825,517 km (0.114 R)
• M10: 4,387,706 km (0.088 R)
• M11: 4,820,043 km (0.067 R)
• M12: 5,386,870 km (0.088 R)
• M13: 6,369,877 km (0.084 R)
• M14: 6,967,820 km (0.072 R)
• M15: 7,357,373 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.3

Radius: 14.9

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.93 AU - 4.05 AU

Year: 4583 Days

Day: 8.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,559,899 km

• M1: 185,352 km (0.07 R)
• M2: 920,027 km (0.102 R)
• M3: 1,486,704 km (0.107 R)
• M4: 2,262,668 km (0.075 R)
• M5: 3,646,897 km (0.073 R)
• M6: 4,803,737 km (0.049 R)
• M7: 6,729,959 km (0.116 R)
• M8: 7,327,154 km (0.082 R)
• M9: 8,241,795 km (0.095 R)
• M10: 9,027,184 km (0.113 R)
• M11: 9,648,763 km (0.088 R)
• M12: 10,225,014 km (0.05 R)
• M13: 13,771,531 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.1

Radius: 12.3

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.76 AU - 3.84 AU

Year: 5207 Days

Day: 5.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,559,899 km

• M1: 153,936 km (0.083 R)
• M2: 566,378 km (0.076 R)
• M3: 952,041 km (0.094 R)
• M4: 1,386,473 km (0.117 R)
• M5: 1,789,490 km (0.053 R)
• M6: 2,588,342 km (0.083 R)
• M7: 3,354,583 km (0.089 R)
• M8: 4,622,574 km (0.119 R)
• M9: 5,512,233 km (0.085 R)
• M10: 6,155,952 km (0.105 R)
• M11: 7,056,681 km (0.096 R)
• M12: 8,158,469 km (0.088 R)
• M13: 8,954,480 km (0.117 R)
• M14: 10,425,775 km (0.071 R)
• M15: 11,902,455 km (0.111 R)
• M16: 13,514,522 km (0.071 R)
• M17: 14,916,852 km (0.118 R)
• M18: 16,662,809 km (0.025 R)
• M19: 17,943,666 km (0.091 R)
• M20: 18,473,991 km (0.092 R)
• M21: 20,413,228 km (0.093 R)
• M22: 23,650,227 km (0.057 R)
• M23: 26,440,825 km (0.069 R)
• M24: 31,696,198 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.6

Radius: 8.7

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.77 AU - 3.91 AU

Year: 5289 Days

Day: 5.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,559,899 km

• M1: 108,458 km (0.046 R)
• M2: 488,736 km (0.025 R)
• M3: 1,159,084 km (0.101 R)
• M4: 1,988,904 km (0.037 R)
• M5: 3,222,039 km (0.117 R)
• M6: 4,580,986 km (0.062 R)
• M7: 6,398,899 km (0.095 R)
• M8: 7,817,835 km (0.087 R)
• M9: 9,881,987 km (0.07 R)
• M10: 10,617,559 km (0.073 R)
• M11: 13,411,898 km (0.072 R)
• M12: 19,256,687 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.3

Radius: 12.7

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.31 AU - 5.23 AU

Year: 7323 Days

Day: 7.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,559,899 km

• M1: 158,723 km (0.102 R)
• M2: 838,197 km (0.105 R)
• M3: 1,452,595 km (0.108 R)
• M4: 2,024,658 km (0.095 R)
• M5: 2,499,182 km (0.086 R)
• M6: 3,374,629 km (0.077 R)
• M7: 4,780,849 km (0.06 R)
• M8: 5,600,196 km (0.105 R)
• M9: 6,128,726 km (0.061 R)
• M10: 7,247,867 km (0.074 R)
• M11: 10,174,450 km (0.072 R)
• M12: 12,831,907 km (0.051 R)
• M13: 14,534,032 km (0.106 R)
• M14: 15,154,563 km (0.093 R)
• M15: 19,034,683 km (0.034 R)
• M16: 19,702,488 km (0.076 R)
• M17: 25,711,236 km (0.114 R)
• M18: 30,871,615 km (0.104 R)
• M19: 32,523,923 km (0.112 R)
• M20: 35,112,116 km (0.041 R)
• M21: 36,683,642 km (0.116 R)
• M22: 37,834,648 km (0.03 R)
• M23: 39,009,440 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.7

Radius: 9.4

Gravity: 9.8 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.01 AU - 5.25 AU

Year: 8167 Days

Day: 14.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,559,899 km

• M1: 116,986 km (0.098 R)
• M2: 1,140,534 km (0.11 R)
• M3: 2,004,013 km (0.11 R)
• M4: 3,095,030 km (0.082 R)
• M5: 5,528,539 km (0.091 R)
• M6: 6,994,149 km (0.093 R)
• M7: 7,837,881 km (0.11 R)
• M8: 9,921,181 km (0.081 R)
• M9: 15,741,286 km (0.118 R)
• M10: 16,625,559 km (0.117 R)
• M11: 19,018,527 km (0.046 R)
• M12: 19,708,921 km (0.097 R)
• M13: 20,099,820 km (0.093 R)
• M14: 22,131,808 km (0.041 R)
• M15: 24,656,272 km (0.071 R)
• M16: 25,941,168 km (0.082 R)
• M17: 28,345,655 km (0.041 R)
• M18: 30,999,970 km (0.086 R)
• M19: 33,151,337 km (0.057 R)
• M20: 36,211,062 km (0.1 R)
• M21: 40,075,175 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.5

Radius: 7.9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.72 AU - 7.04 AU

Year: 10022 Days

Day: 23.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,559,899 km

• M1: 120,426 km (0.072 R)
• M2: 752,776 km (0.034 R)
• M3: 1,344,586 km (0.063 R)
• M4: 1,593,816 km (0.093 R)
• M5: 2,079,560 km (0.05 R)
• M6: 2,536,282 km (0.092 R)
• M7: 5,283,498 km (0.096 R)
• M8: 5,698,183 km (0.118 R)
• M9: 10,464,371 km (0.096 R)
• M10: 15,061,663 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 634.4

Radius: 3.9

Gravity: 41.71 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.5 AU - 9.08 AU

Year: 13836 Days

Day: 17.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,559,899 km

• M1: 48,470 km (0.097 R)
• M2: 207,492 km (0.114 R)
• M3: 375,341 km (0.1 R)
• M4: 665,711 km (0.103 R)
• M5: 1,567,038 km (0.099 R)
• M6: 2,960,841 km (0.082 R)
• M7: 4,819,744 km (0.119 R)
• M8: 8,388,252 km (0.116 R)
• M9: 8,532,315 km (0.07 R)
• M10: 8,825,377 km (0.09 R)
• M11: 10,839,712 km (0.092 R)
• M12: 12,258,349 km (0.118 R)
• M13: 14,960,385 km (0.094 R)
• M14: 16,411,784 km (0.034 R)
• M15: 16,637,378 km (0.04 R)
• M16: 18,034,173 km (0.036 R)
• M17: 29,504,141 km (0.107 R)
• M18: 29,949,344 km (0.086 R)
• M19: 35,021,310 km (0.059 R)
• M20: 41,049,506 km (0.112 R)
• M21: 45,479,697 km (0.07 R)
• M22: 50,060,235 km (0.101 R)
• M23: 52,787,553 km (0.059 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 913.1

Radius: 6.1

Gravity: 24.54 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 9.25 AU - 9.35 AU

Year: 19936 Days

Day: 17.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,559,899 km

• M1: 76,145 km (0.05 R)
• M2: 464,651 km (0.083 R)
• M3: 657,632 km (0.047 R)
• M4: 1,812,079 km (0.074 R)
• M5: 2,491,403 km (0.053 R)
• M6: 8,469,783 km (0.056 R)
• M7: 11,814,342 km (0.083 R)
• M8: 13,590,069 km (0.027 R)
• M9: 18,563,001 km (0.113 R)
• M10: 21,050,365 km (0.119 R)
• M11: 22,686,667 km (0.065 R)
• M12: 23,751,355 km (0.116 R)
• M13: 25,523,641 km (0.115 R)
• M14: 27,620,554 km (0.107 R)
• M15: 27,980,786 km (0.089 R)
• M16: 31,627,234 km (0.054 R)
• M17: 38,486,895 km (0.093 R)
• M18: 41,393,282 km (0.113 R)
• M19: 42,980,216 km (0.102 R)
• M20: 66,579,131 km (0.104 R)
• M21: 69,416,404 km (0.108 R)
• M22: 70,528,814 km (0.074 R)
• M23: 72,333,263 km (0.096 R)
• M24: 83,559,835 km (0.075 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 347 - 15,988 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit