🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.6

Radius: 11.3

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.53 AU - 0.55 AU

Year: 269 Days

Day: 12.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 63,521,094 km

• M1: 140,472 km (0.112 R)
• M2: 734,526 km (0.078 R)
• M3: 1,146,368 km (0.07 R)
• M4: 1,659,040 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.6

Radius: 12.9

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.84 AU - 1.08 AU

Year: 638 Days

Day: 8.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,521,094 km

• M1: 161,416 km (0.097 R)
• M2: 590,463 km (0.119 R)
• M3: 1,093,261 km (0.105 R)
• M4: 1,504,207 km (0.047 R)
• M5: 2,154,658 km (0.045 R)
• M6: 2,998,390 km (0.077 R)
• M7: 3,433,720 km (0.077 R)
• M8: 3,869,798 km (0.101 R)
• M9: 4,775,014 km (0.105 R)
• M10: 6,246,758 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.7

Radius: 10.1

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.88 AU - 1.32 AU

Year: 782 Days

Day: 8.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,521,094 km

• M1: 125,662 km (0.071 R)
• M2: 492,626 km (0.106 R)
• M3: 895,044 km (0.055 R)
• M4: 1,215,632 km (0.029 R)
• M5: 1,724,115 km (0.092 R)
• M6: 2,055,924 km (0.082 R)
• M7: 2,619,010 km (0.066 R)
• M8: 2,955,007 km (0.113 R)
• M9: 3,332,592 km (0.115 R)
• M10: 3,701,201 km (0.079 R)
• M11: 4,290,467 km (0.104 R)
• M12: 4,792,966 km (0.12 R)
• M13: 5,729,598 km (0.12 R)
• M14: 6,163,881 km (0.053 R)
• M15: 6,804,609 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.4

Radius: 10.8

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.89 AU - 2.53 AU

Year: 2228 Days

Day: 14 Hours

Environment

Temp: -196 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,521,094 km

• M1: 135,087 km (0.119 R)
• M2: 558,299 km (0.119 R)
• M3: 1,047,335 km (0.1 R)
• M4: 1,404,275 km (0.104 R)
• M5: 6,771,548 km (0.103 R)
• M6: 7,161,400 km (0.067 R)
• M7: 7,540,481 km (0.076 R)
• M8: 8,477,562 km (0.104 R)
• M9: 10,010,641 km (0.116 R)
• M10: 11,074,880 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.6

Radius: 9.5

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.62 AU - 2.66 AU

Year: 2909 Days

Day: 9.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,521,094 km

• M1: 118,182 km (0.08 R)
• M2: 543,040 km (0.11 R)
• M3: 854,802 km (0.119 R)
• M4: 1,957,937 km (0.081 R)
• M5: 2,644,890 km (0.078 R)
• M6: 3,291,004 km (0.109 R)
• M7: 3,685,792 km (0.11 R)
• M8: 5,127,916 km (0.081 R)
• M9: 5,434,143 km (0.081 R)
• M10: 7,991,069 km (0.113 R)
• M11: 8,554,754 km (0.113 R)
• M12: 9,629,166 km (0.102 R)
• M13: 11,703,490 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 586.5

Radius: 4.8

Gravity: 25.46 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.57 AU - 7.15 AU

Year: 9621 Days

Day: 18.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,521,094 km

• M1: 62,083 km (0.069 R)
• M2: 430,243 km (0.04 R)
• M3: 2,161,240 km (0.1 R)
• M4: 3,225,928 km (0.104 R)
• M5: 4,456,521 km (0.076 R)
• M6: 6,360,752 km (0.118 R)
• M7: 9,676,289 km (0.114 R)
• M8: 10,875,017 km (0.107 R)
• M9: 17,011,223 km (0.113 R)
• M10: 19,737,345 km (0.096 R)
• M11: 20,283,975 km (0.111 R)
• M12: 24,844,317 km (0.112 R)
• M13: 25,389,601 km (0.109 R)
• M14: 26,598,501 km (0.086 R)
• M15: 29,635,338 km (0.069 R)
• M16: 31,184,424 km (0.091 R)
• M17: 31,394,908 km (0.097 R)
• M18: 33,663,111 km (0.091 R)
• M19: 36,154,065 km (0.081 R)
• M20: 36,854,183 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 244.1

Radius: 3.9

Gravity: 16.05 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 5.89 AU - 7.81 AU

Year: 12160 Days

Day: 23.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 63,521,094 km

• M1: 49,367 km (0.065 R)
• M2: 252,222 km (0.097 R)
• M3: 454,628 km (0.096 R)
• M4: 759,957 km (0.106 R)
• M5: 1,463,516 km (0.078 R)
• M6: 2,220,780 km (0.118 R)
• M7: 3,058,828 km (0.119 R)
• M8: 4,324,725 km (0.108 R)
• M9: 4,738,213 km (0.119 R)
• M10: 5,804,996 km (0.112 R)
• M11: 6,411,615 km (0.09 R)
• M12: 6,766,461 km (0.047 R)
• M13: 7,592,690 km (0.113 R)
• M14: 9,308,428 km (0.114 R)
• M15: 9,488,544 km (0.07 R)
• M16: 10,765,512 km (0.078 R)
• M17: 14,063,696 km (0.074 R)
• M18: 14,905,633 km (0.066 R)
• M19: 15,152,320 km (0.106 R)
• M20: 18,397,696 km (0.104 R)
• M21: 19,771,453 km (0.102 R)
• M22: 21,918,482 km (0.109 R)
• M23: 22,397,943 km (0.104 R)
• M24: 23,130,224 km (0.047 R)
• M25: 23,377,809 km (0.113 R)
• M26: 24,728,378 km (0.057 R)
• M27: 27,491,302 km (0.073 R)
• M28: 28,803,724 km (0.091 R)
• M29: 30,750,441 km (0.053 R)
• M30: 31,250,397 km (0.118 R)
• M31: 31,452,055 km (0.113 R)
• M32: 32,991,118 km (0.097 R)
• M33: 33,409,842 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.9

Radius: 6.1

Gravity: 24.24 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 6.01 AU - 8.53 AU

Year: 13295 Days

Day: 19.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 63,521,094 km

• M1: 75,846 km (0.114 R)
• M2: 393,143 km (0.074 R)
• M3: 931,247 km (0.036 R)
• M4: 2,376,661 km (0.078 R)
• M5: 2,591,634 km (0.074 R)
• M6: 3,161,003 km (0.087 R)
• M7: 3,781,834 km (0.07 R)
• M8: 4,676,429 km (0.037 R)
• M9: 5,298,158 km (0.074 R)
• M10: 5,629,069 km (0.045 R)
• M11: 5,973,742 km (0.096 R)
• M12: 10,863,498 km (0.065 R)
• M13: 11,098,965 km (0.114 R)
• M14: 12,518,948 km (0.089 R)
• M15: 13,373,002 km (0.102 R)
• M16: 14,195,342 km (0.099 R)
• M17: 14,690,212 km (0.099 R)
• M18: 16,091,794 km (0.101 R)
• M19: 18,649,768 km (0.061 R)
• M20: 20,647,498 km (0.051 R)
• M21: 21,191,286 km (0.063 R)
• M22: 24,353,636 km (0.115 R)
• M23: 25,062,730 km (0.108 R)
• M24: 35,571,980 km (0.084 R)
• M25: 35,831,084 km (0.083 R)
• M26: 39,314,919 km (0.088 R)
• M27: 41,999,004 km (0.069 R)
• M28: 49,158,459 km (0.08 R)
• M29: 53,788,064 km (0.098 R)
• M30: 55,858,050 km (0.057 R)
• M31: 56,912,715 km (0.101 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 544 - 17,439 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit