🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.63 AU - 0.65 AU

Year: 326 Days

Day: 17.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 7.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.1

Radius: 8.4

Gravity: 11.44 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.67 AU - 0.97 AU

Year: 472 Days

Day: 8 Hours

Environment

Temp: -141 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,196,622 km

• M1: 104,868 km (0.083 R)
• M2: 388,356 km (0.115 R)
• M3: 784,491 km (0.064 R)
• M4: 1,297,163 km (0.069 R)
• M5: 1,603,689 km (0.097 R)
• M6: 2,280,021 km (0.029 R)
• M7: 2,731,358 km (0.07 R)
• M8: 3,826,115 km (0.075 R)
• M9: 5,809,185 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.7

Radius: 12.9

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.03 AU - 1.07 AU

Year: 684 Days

Day: 8.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,196,622 km

• M1: 160,818 km (0.112 R)
• M2: 616,792 km (0.096 R)
• M3: 1,097,151 km (0.054 R)
• M4: 1,560,755 km (0.101 R)
• M5: 2,041,263 km (0.044 R)
• M6: 2,476,892 km (0.114 R)
• M7: 3,012,303 km (0.107 R)
• M8: 3,429,681 km (0.076 R)
• M9: 3,915,724 km (0.118 R)
• M10: 4,350,306 km (0.09 R)
• M11: 6,381,845 km (0.106 R)
• M12: 7,031,698 km (0.07 R)
• M13: 7,606,453 km (0.047 R)
• M14: 8,088,757 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42

Radius: 14.4

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.24 AU - 3.64 AU

Year: 3205 Days

Day: 6.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,196,622 km

• M1: 179,218 km (0.093 R)
• M2: 912,846 km (0.096 R)
• M3: 1,560,007 km (0.099 R)
• M4: 2,071,332 km (0.107 R)
• M5: 3,470,521 km (0.043 R)
• M6: 3,971,375 km (0.09 R)
• M7: 4,669,847 km (0.083 R)
• M8: 5,338,101 km (0.104 R)
• M9: 6,586,495 km (0.056 R)
• M10: 7,429,030 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.3

Radius: 10.7

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.42 AU - 3.72 AU

Year: 3420 Days

Day: 7.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,196,622 km

• M1: 137,780 km (0.105 R)
• M2: 601,533 km (0.103 R)
• M3: 1,022,501 km (0.073 R)
• M4: 1,430,754 km (0.115 R)
• M5: 1,883,437 km (0.095 R)
• M6: 2,508,008 km (0.12 R)
• M7: 2,862,406 km (0.107 R)
• M8: 3,203,788 km (0.105 R)
• M9: 3,639,567 km (0.12 R)
• M10: 4,096,438 km (0.102 R)
• M11: 4,473,724 km (0.101 R)
• M12: 4,977,869 km (0.112 R)
• M13: 5,519,713 km (0.092 R)
• M14: 6,955,403 km (0.051 R)
• M15: 8,809,669 km (0.039 R)
• M16: 10,170,561 km (0.074 R)
• M17: 12,005,528 km (0.044 R)
• M18: 13,509,436 km (0.07 R)
• M19: 14,221,372 km (0.091 R)

Asteroid Belt

Center: 4.48 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.5

Radius: 12.2

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.17 AU - 6.59 AU

Year: 9066 Days

Day: 6 Hours

Environment

Temp: -229 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,196,622 km

• M1: 151,842 km (0.112 R)
• M2: 588,668 km (0.106 R)
• M3: 1,093,411 km (0.106 R)
• M4: 1,507,049 km (0.051 R)
• M5: 1,913,806 km (0.114 R)
• M6: 2,298,571 km (0.12 R)
• M7: 3,433,570 km (0.108 R)
• M8: 5,913,753 km (0.109 R)
• M9: 8,131,243 km (0.115 R)
• M10: 9,658,936 km (0.055 R)
• M11: 10,993,948 km (0.03 R)
• M12: 13,755,823 km (0.075 R)
• M13: 18,422,679 km (0.033 R)
• M14: 22,136,745 km (0.112 R)
• M15: 23,426,727 km (0.101 R)
• M16: 24,766,227 km (0.119 R)
• M17: 25,824,482 km (0.091 R)
• M18: 26,912,657 km (0.084 R)
• M19: 27,425,030 km (0.034 R)
• M20: 29,090,802 km (0.061 R)
• M21: 30,085,478 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.8

Radius: 14.9

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 5.09 AU - 6.75 AU

Year: 9158 Days

Day: 7.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,196,622 km

• M1: 205,099 km (0.092 R)
• M2: 887,415 km (0.104 R)
• M3: 1,995,037 km (0.107 R)
• M4: 3,750,269 km (0.046 R)
• M5: 4,558,098 km (0.063 R)
• M6: 5,901,636 km (0.077 R)
• M7: 8,182,854 km (0.054 R)
• M8: 8,956,425 km (0.111 R)
• M9: 10,304,750 km (0.103 R)
• M10: 12,107,853 km (0.061 R)
• M11: 17,489,936 km (0.1 R)
• M12: 18,701,828 km (0.06 R)
• M13: 23,344,449 km (0.088 R)
• M14: 27,933,962 km (0.077 R)
• M15: 33,200,106 km (0.103 R)
• M16: 33,738,957 km (0.114 R)
• M17: 34,945,015 km (0.109 R)
• M18: 36,635,771 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.4

Radius: 5.2

Gravity: 25.16 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 6.96 AU - 8.98 AU

Year: 14306 Days

Day: 20.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 64,196,622 km

• M1: 64,626 km (0.072 R)
• M2: 234,719 km (0.034 R)
• M3: 461,360 km (0.119 R)
• M4: 851,810 km (0.117 R)
• M5: 1,590,375 km (0.082 R)
• M6: 4,494,668 km (0.113 R)
• M7: 4,721,010 km (0.081 R)
• M8: 5,518,665 km (0.093 R)
• M9: 5,968,656 km (0.116 R)
• M10: 7,070,594 km (0.104 R)
• M11: 8,942,512 km (0.114 R)
• M12: 9,146,264 km (0.091 R)
• M13: 9,829,627 km (0.12 R)
• M14: 11,777,392 km (0.091 R)
• M15: 12,333,148 km (0.073 R)
• M16: 12,522,239 km (0.102 R)
• M17: 13,035,809 km (0.068 R)
• M18: 13,496,720 km (0.097 R)
• M19: 16,040,033 km (0.1 R)
• M20: 16,722,349 km (0.081 R)
• M21: 18,389,617 km (0.105 R)
• M22: 19,305,755 km (0.084 R)
• M23: 24,743,787 km (0.104 R)
• M24: 26,065,634 km (0.052 R)
• M25: 34,248,189 km (0.112 R)
• M26: 36,661,651 km (0.119 R)
• M27: 37,183,897 km (0.112 R)
• M28: 38,510,980 km (0.052 R)
• M29: 39,732,147 km (0.106 R)
• M30: 41,119,069 km (0.096 R)
• M31: 44,726,771 km (0.068 R)
• M32: 50,444,851 km (0.061 R)
• M33: 55,424,066 km (0.048 R)
• M34: 56,979,286 km (0.092 R)
• M35: 60,357,804 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 732.9

Radius: 5.1

Gravity: 28.18 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 7.37 AU - 9.07 AU

Year: 14984 Days

Day: 17.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 64,196,622 km

• M1: 63,878 km (0.089 R)
• M2: 306,975 km (0.084 R)
• M3: 874,699 km (0.113 R)
• M4: 1,053,468 km (0.117 R)
• M5: 1,611,468 km (0.091 R)
• M6: 2,496,190 km (0.109 R)
• M7: 2,719,988 km (0.107 R)
• M8: 3,105,801 km (0.087 R)
• M9: 3,926,645 km (0.109 R)
• M10: 5,829,979 km (0.119 R)
• M11: 7,156,014 km (0.049 R)
• M12: 8,874,594 km (0.056 R)
• M13: 10,162,034 km (0.064 R)
• M14: 11,326,204 km (0.059 R)
• M15: 11,692,121 km (0.03 R)
• M16: 14,265,354 km (0.072 R)
• M17: 16,329,954 km (0.094 R)
• M18: 20,767,476 km (0.082 R)
• M19: 22,345,135 km (0.071 R)
• M20: 26,157,188 km (0.108 R)
• M21: 31,803,759 km (0.039 R)
• M22: 33,270,417 km (0.094 R)
• M23: 33,769,176 km (0.055 R)
• M24: 35,166,271 km (0.089 R)
• M25: 36,469,567 km (0.11 R)
• M26: 38,347,619 km (0.03 R)
• M27: 39,449,258 km (0.088 R)
• M28: 41,859,878 km (0.044 R)
• M29: 42,880,584 km (0.12 R)
• M30: 44,517,634 km (0.099 R)
• M31: 45,427,937 km (0.104 R)
• M32: 49,032,497 km (0.053 R)
• M33: 60,981,178 km (0.086 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 17,486 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit