🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.3

Radius: 8.7

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.65 AU - 0.81 AU

Year: 431 Days

Day: 10.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,988,594 km

• M1: 108,758 km (0.053 R)
• M2: 420,520 km (0.097 R)
• M3: 812,765 km (0.097 R)
• M4: 1,185,713 km (0.097 R)
• M5: 1,548,188 km (0.06 R)
• M6: 1,837,062 km (0.104 R)
• M7: 2,284,808 km (0.109 R)
• M8: 2,589,090 km (0.115 R)
• M9: 3,195,411 km (0.096 R)
• M10: 3,646,299 km (0.054 R)
• M11: 4,101,525 km (0.115 R)
• M12: 4,554,058 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.8

Radius: 9

Gravity: 8.13 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.74 AU - 1.18 AU

Year: 649 Days

Day: 9.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,988,594 km

• M1: 112,049 km (0.087 R)
• M2: 454,628 km (0.078 R)
• M3: 1,025,344 km (0.1 R)
• M4: 1,392,457 km (0.037 R)
• M5: 1,706,313 km (0.099 R)
• M6: 2,031,090 km (0.114 R)
• M7: 2,438,445 km (0.11 R)
• M8: 2,887,837 km (0.077 R)
• M9: 3,289,059 km (0.093 R)
• M10: 3,953,423 km (0.095 R)
• M11: 4,465,048 km (0.12 R)
• M12: 5,824,593 km (0.069 R)
• M13: 6,589,337 km (0.078 R)
• M14: 6,879,707 km (0.089 R)
• M15: 7,353,184 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.4

Radius: 14.3

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.05 AU - 1.13 AU

Year: 786 Days

Day: 5.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,988,594 km

• M1: 177,872 km (0.101 R)
• M2: 786,735 km (0.099 R)
• M3: 1,482,664 km (0.086 R)
• M4: 2,156,753 km (0.08 R)
• M5: 3,055,985 km (0.12 R)
• M6: 3,716,759 km (0.05 R)
• M7: 4,273,712 km (0.076 R)
• M8: 4,797,753 km (0.045 R)
• M9: 5,834,317 km (0.117 R)
• M10: 6,288,795 km (0.105 R)
• M11: 6,992,354 km (0.085 R)
• M12: 8,273,211 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.9

Radius: 12.8

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.04 AU - 1.5 AU

Year: 988 Days

Day: 15 Hours

Environment

Temp: -184 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,988,594 km

• M1: 159,172 km (0.105 R)
• M2: 626,815 km (0.075 R)
• M3: 1,028,934 km (0.059 R)
• M4: 2,052,782 km (0.116 R)
• M5: 2,550,195 km (0.082 R)
• M6: 3,463,191 km (0.068 R)
• M7: 4,011,916 km (0.094 R)
• M8: 4,513,218 km (0.073 R)
• M9: 4,925,510 km (0.098 R)
• M10: 5,723,914 km (0.118 R)
• M11: 6,208,461 km (0.091 R)
• M12: 7,164,242 km (0.088 R)
• M13: 7,578,179 km (0.043 R)
• M14: 8,163,556 km (0.07 R)
• M15: 8,642,718 km (0.107 R)
• M16: 9,112,306 km (0.095 R)
• M17: 9,569,925 km (0.097 R)
• M18: 9,982,816 km (0.053 R)
• M19: 10,438,491 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.6

Radius: 9.6

Gravity: 10.81 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.53 AU - 2.09 AU

Year: 1681 Days

Day: 14.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,988,594 km

• M1: 119,379 km (0.064 R)
• M2: 571,763 km (0.08 R)
• M3: 885,619 km (0.06 R)
• M4: 1,676,543 km (0.031 R)
• M5: 3,920,960 km (0.086 R)
• M6: 4,444,702 km (0.116 R)
• M7: 5,825,191 km (0.112 R)
• M8: 6,828,395 km (0.074 R)
• M9: 7,187,280 km (0.075 R)
• M10: 7,587,754 km (0.068 R)
• M11: 9,475,978 km (0.07 R)
• M12: 10,565,350 km (0.107 R)
• M13: 11,658,012 km (0.08 R)
• M14: 14,289,140 km (0.094 R)
• M15: 14,740,327 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282

Radius: 11.5

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.99 AU - 2.03 AU

Year: 1967 Days

Day: 9.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,988,594 km

• M1: 143,165 km (0.087 R)
• M2: 559,646 km (0.11 R)
• M3: 1,007,093 km (0.119 R)
• M4: 1,388,268 km (0.096 R)
• M5: 1,847,833 km (0.026 R)
• M6: 2,269,699 km (0.108 R)
• M7: 2,768,907 km (0.089 R)
• M8: 3,476,655 km (0.118 R)
• M9: 3,923,354 km (0.051 R)
• M10: 6,406,230 km (0.082 R)
• M11: 6,957,199 km (0.068 R)
• M12: 7,461,643 km (0.075 R)
• M13: 8,801,740 km (0.076 R)
• M14: 9,728,798 km (0.074 R)

Asteroid Belt

Center: 2.34 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.2

Radius: 13.9

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.19 AU - 3.15 AU

Year: 3011 Days

Day: 8.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,988,594 km

• M1: 172,935 km (0.085 R)
• M2: 1,165,667 km (0.087 R)
• M3: 1,604,288 km (0.102 R)
• M4: 2,273,439 km (0.073 R)
• M5: 2,928,827 km (0.119 R)
• M6: 3,879,522 km (0.037 R)
• M7: 5,027,236 km (0.111 R)
• M8: 5,680,680 km (0.102 R)
• M9: 6,445,125 km (0.106 R)
• M10: 7,307,108 km (0.064 R)
• M11: 9,726,704 km (0.05 R)
• M12: 10,900,748 km (0.057 R)
• M13: 11,501,832 km (0.088 R)
• M14: 12,946,499 km (0.114 R)
• M15: 14,036,918 km (0.055 R)
• M16: 15,040,420 km (0.074 R)
• M17: 15,887,443 km (0.1 R)
• M18: 18,116,601 km (0.118 R)
• M19: 18,903,935 km (0.091 R)
• M20: 19,480,336 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.1

Radius: 14.9

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.59 AU - 4.19 AU

Year: 5296 Days

Day: 11.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,988,594 km

• M1: 185,501 km (0.081 R)
• M2: 654,640 km (0.093 R)
• M3: 1,180,178 km (0.103 R)
• M4: 2,732,704 km (0.11 R)
• M5: 3,297,586 km (0.071 R)
• M6: 4,964,256 km (0.114 R)
• M7: 5,569,379 km (0.058 R)
• M8: 7,836,984 km (0.086 R)
• M9: 10,434,003 km (0.073 R)
• M10: 12,233,067 km (0.072 R)
• M11: 13,615,800 km (0.093 R)
• M12: 15,219,040 km (0.05 R)
• M13: 15,821,022 km (0.068 R)
• M14: 17,073,007 km (0.11 R)
• M15: 19,212,256 km (0.112 R)
• M16: 21,600,137 km (0.054 R)
• M17: 29,017,349 km (0.106 R)
• M18: 30,132,153 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 380.9

Radius: 3

Gravity: 42.32 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.49 AU - 6.81 AU

Year: 10527 Days

Day: 24.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,988,594 km

• M1: 38,596 km (0.11 R)
• M2: 459,565 km (0.075 R)
• M3: 666,459 km (0.061 R)
• M4: 821,741 km (0.059 R)
• M5: 1,814,772 km (0.103 R)
• M6: 4,322,630 km (0.098 R)
• M7: 5,100,988 km (0.042 R)
• M8: 10,130,768 km (0.099 R)
• M9: 10,521,368 km (0.088 R)
• M10: 17,506,541 km (0.051 R)
• M11: 21,936,583 km (0.108 R)
• M12: 22,343,190 km (0.111 R)
• M13: 24,888,448 km (0.102 R)
• M14: 26,230,640 km (0.073 R)
• M15: 26,596,557 km (0.103 R)
• M16: 27,714,651 km (0.108 R)
• M17: 27,809,347 km (0.096 R)
• M18: 31,978,490 km (0.101 R)
• M19: 33,455,769 km (0.082 R)
• M20: 34,977,777 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 758.3

Radius: 5

Gravity: 30.33 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 6.12 AU - 7.78 AU

Year: 12647 Days

Day: 20.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,988,594 km

• M1: 64,925 km (0.085 R)
• M2: 249,978 km (0.074 R)
• M3: 591,061 km (0.041 R)
• M4: 1,924,876 km (0.099 R)
• M5: 2,143,887 km (0.083 R)
• M6: 2,318,917 km (0.095 R)
• M7: 3,393,628 km (0.06 R)
• M8: 4,863,277 km (0.097 R)
• M9: 6,960,939 km (0.069 R)
• M10: 8,207,089 km (0.069 R)
• M11: 8,784,088 km (0.115 R)
• M12: 12,762,942 km (0.053 R)
• M13: 20,101,765 km (0.077 R)
• M14: 20,359,821 km (0.029 R)
• M15: 26,610,619 km (0.115 R)
• M16: 34,641,182 km (0.055 R)
• M17: 45,021,928 km (0.06 R)
• M18: 47,715,737 km (0.114 R)
• M19: 50,515,162 km (0.105 R)
• M20: 52,930,120 km (0.109 R)
• M21: 56,609,480 km (0.1 R)
• M22: 57,641,705 km (0.045 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: 196 - 17,674 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit