🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.3

Radius: 10.3

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.57 AU - 0.93 AU

Year: 441 Days

Day: 5.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 50,171,739 km

• M1: 128,654 km (0.106 R)
• M2: 578,645 km (0.096 R)
• M3: 1,037,611 km (0.12 R)
• M4: 1,397,095 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.2

Radius: 11.6

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.82 AU - 0.94 AU

Year: 560 Days

Day: 12.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,171,739 km

• M1: 144,212 km (0.098 R)
• M2: 559,047 km (0.113 R)
• M3: 1,131,259 km (0.119 R)
• M4: 1,719,179 km (0.1 R)
• M5: 2,236,787 km (0.09 R)
• M6: 2,634,867 km (0.075 R)
• M7: 3,208,426 km (0.03 R)
• M8: 3,653,180 km (0.093 R)
• M9: 4,110,800 km (0.099 R)
• M10: 4,471,630 km (0.052 R)
• M11: 5,044,889 km (0.107 R)
• M12: 6,005,307 km (0.086 R)
• M13: 6,548,647 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.8

Radius: 11.8

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.51 AU - 2.45 AU

Year: 1890 Days

Day: 8.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 82.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,171,739 km

• M1: 149,598 km (0.117 R)
• M2: 840,142 km (0.085 R)
• M3: 1,242,560 km (0.116 R)
• M4: 1,646,624 km (0.119 R)
• M5: 2,296,178 km (0.065 R)
• M6: 3,234,605 km (0.078 R)
• M7: 4,296,750 km (0.048 R)
• M8: 5,176,086 km (0.096 R)
• M9: 6,754,344 km (0.089 R)
• M10: 7,235,600 km (0.099 R)
• M11: 8,237,457 km (0.116 R)
• M12: 9,558,855 km (0.112 R)
• M13: 10,029,490 km (0.07 R)
• M14: 10,409,917 km (0.081 R)
• M15: 11,163,292 km (0.047 R)
• M16: 11,572,143 km (0.05 R)
• M17: 11,991,017 km (0.094 R)
• M18: 12,578,488 km (0.082 R)
• M19: 15,077,969 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.6

Radius: 9

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.18 AU - 2.68 AU

Year: 2569 Days

Day: 12.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,171,739 km

• M1: 111,899 km (0.099 R)
• M2: 417,976 km (0.116 R)
• M3: 718,519 km (0.114 R)
• M4: 1,071,270 km (0.094 R)
• M5: 1,447,659 km (0.103 R)
• M6: 1,804,450 km (0.046 R)
• M7: 2,260,424 km (0.077 R)
• M8: 3,138,563 km (0.091 R)
• M9: 3,532,903 km (0.053 R)
• M10: 3,899,867 km (0.093 R)
• M11: 4,186,347 km (0.117 R)
• M12: 4,894,693 km (0.075 R)
• M13: 5,706,710 km (0.1 R)
• M14: 6,104,341 km (0.099 R)
• M15: 6,778,878 km (0.116 R)
• M16: 8,961,062 km (0.095 R)
• M17: 13,144,716 km (0.104 R)
• M18: 13,792,325 km (0.108 R)
• M19: 16,332,796 km (0.068 R)
• M20: 17,354,101 km (0.105 R)
• M21: 18,020,859 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.2

Radius: 9.5

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.04 AU - 3.28 AU

Year: 3810 Days

Day: 8.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,171,739 km

• M1: 118,631 km (0.116 R)
• M2: 474,824 km (0.114 R)
• M3: 1,411,456 km (0.114 R)
• M4: 3,071,843 km (0.088 R)
• M5: 4,146,105 km (0.071 R)
• M6: 7,144,944 km (0.087 R)
• M7: 7,671,080 km (0.076 R)
• M8: 8,110,449 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.1

Radius: 8.2

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.6 AU - 4.16 AU

Year: 4215 Days

Day: 6.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,171,739 km

• M1: 102,175 km (0.092 R)
• M2: 834,756 km (0.051 R)
• M3: 1,171,651 km (0.042 R)
• M4: 1,624,034 km (0.11 R)
• M5: 2,006,706 km (0.047 R)
• M6: 2,729,563 km (0.118 R)
• M7: 3,427,437 km (0.064 R)
• M8: 3,719,751 km (0.095 R)
• M9: 4,859,238 km (0.103 R)
• M10: 5,901,636 km (0.112 R)
• M11: 7,587,006 km (0.045 R)
• M12: 7,908,791 km (0.051 R)
• M13: 9,400,730 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673

Radius: 11.6

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 4.17 AU - 5.25 AU

Year: 6933 Days

Day: 5.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 136.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,171,739 km

• M1: 144,512 km (0.108 R)
• M2: 632,949 km (0.103 R)
• M3: 1,014,124 km (0.118 R)
• M4: 1,432,549 km (0.065 R)
• M5: 1,864,588 km (0.107 R)
• M6: 2,383,992 km (0.108 R)
• M7: 4,179,765 km (0.119 R)
• M8: 5,742,763 km (0.036 R)
• M9: 6,398,301 km (0.082 R)
• M10: 6,779,626 km (0.107 R)
• M11: 7,819,780 km (0.099 R)
• M12: 9,178,577 km (0.11 R)
• M13: 9,755,128 km (0.108 R)
• M14: 10,497,582 km (0.089 R)
• M15: 10,931,565 km (0.119 R)
• M16: 11,327,401 km (0.083 R)
• M17: 12,306,070 km (0.106 R)
• M18: 12,897,880 km (0.104 R)
• M19: 14,608,980 km (0.039 R)
• M20: 16,274,004 km (0.118 R)
• M21: 17,925,565 km (0.098 R)
• M22: 18,546,546 km (0.117 R)
• M23: 20,051,500 km (0.095 R)
• M24: 22,578,507 km (0.078 R)
• M25: 26,180,675 km (0.099 R)
• M26: 27,704,778 km (0.097 R)
• M27: 31,423,631 km (0.107 R)
• M28: 35,895,710 km (0.061 R)
• M29: 36,882,607 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 242.6

Radius: 3.1

Gravity: 25.24 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 5.24 AU - 6.84 AU

Year: 10068 Days

Day: 15.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,171,739 km

• M1: 41,439 km (0.093 R)
• M2: 167,699 km (0.112 R)
• M3: 279,449 km (0.113 R)
• M4: 671,844 km (0.069 R)
• M5: 994,527 km (0.049 R)
• M6: 1,102,088 km (0.088 R)
• M7: 1,399,787 km (0.107 R)
• M8: 1,706,912 km (0.07 R)
• M9: 2,200,136 km (0.118 R)
• M10: 3,482,040 km (0.107 R)
• M11: 3,896,725 km (0.11 R)
• M12: 4,659,525 km (0.074 R)
• M13: 5,456,582 km (0.093 R)
• M14: 5,918,989 km (0.117 R)
• M15: 7,536,591 km (0.084 R)
• M16: 8,628,506 km (0.061 R)
• M17: 16,625,410 km (0.1 R)
• M18: 18,595,464 km (0.105 R)
• M19: 25,260,947 km (0.073 R)
• M20: 28,664,149 km (0.1 R)
• M21: 29,398,226 km (0.08 R)
• M22: 29,956,824 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 410.4

Radius: 7.1

Gravity: 8.14 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 6.21 AU - 7.37 AU

Year: 12000 Days

Day: 18.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,171,739 km

• M1: 88,263 km (0.067 R)
• M2: 340,784 km (0.075 R)
• M3: 945,459 km (0.093 R)
• M4: 1,958,535 km (0.1 R)
• M5: 2,895,168 km (0.105 R)
• M6: 4,435,128 km (0.073 R)
• M7: 5,884,283 km (0.081 R)
• M8: 6,830,340 km (0.059 R)
• M9: 10,123,737 km (0.067 R)
• M10: 10,630,574 km (0.071 R)
• M11: 10,942,635 km (0.087 R)
• M12: 11,749,716 km (0.081 R)
• M13: 22,288,288 km (0.072 R)
• M14: 23,058,717 km (0.075 R)
• M15: 23,494,196 km (0.119 R)
• M16: 24,652,383 km (0.106 R)
• M17: 24,925,100 km (0.105 R)
• M18: 32,629,988 km (0.081 R)
• M19: 36,017,183 km (0.036 R)
• M20: 38,523,097 km (0.092 R)
• M21: 44,817,128 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.2

Radius: 4.6

Gravity: 22.84 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 6.33 AU - 7.81 AU

Year: 12750 Days

Day: 20.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 50,171,739 km

• M1: 57,296 km (0.107 R)
• M2: 379,679 km (0.06 R)
• M3: 541,544 km (0.118 R)
• M4: 715,975 km (0.119 R)
• M5: 859,141 km (0.058 R)
• M6: 1,122,283 km (0.085 R)
• M7: 1,479,074 km (0.084 R)
• M8: 1,809,536 km (0.081 R)
• M9: 3,337,229 km (0.065 R)
• M10: 3,485,930 km (0.056 R)
• M11: 3,717,357 km (0.075 R)
• M12: 4,903,369 km (0.034 R)
• M13: 5,809,933 km (0.054 R)
• M14: 6,284,008 km (0.078 R)
• M15: 7,774,302 km (0.085 R)
• M16: 8,717,367 km (0.079 R)
• M17: 9,987,603 km (0.083 R)
• M18: 12,410,041 km (0.106 R)
• M19: 12,768,029 km (0.026 R)
• M20: 12,949,640 km (0.087 R)
• M21: 13,194,383 km (0.118 R)
• M22: 13,947,309 km (0.103 R)
• M23: 14,139,991 km (0.102 R)
• M24: 14,995,242 km (0.088 R)
• M25: 17,468,394 km (0.11 R)
• M26: 21,283,887 km (0.118 R)
• M27: 23,294,483 km (0.08 R)
• M28: 24,022,576 km (0.097 R)
• M29: 27,993,202 km (0.083 R)
• M30: 28,299,728 km (0.107 R)
• M31: 29,654,337 km (0.104 R)
• M32: 34,325,381 km (0.028 R)
• M33: 36,347,645 km (0.101 R)
• M34: 36,712,664 km (0.108 R)
• M35: 38,700,221 km (0.11 R)
• M36: 40,367,190 km (0.117 R)
• M37: 43,160,033 km (0.064 R)
• M38: 44,534,089 km (0.111 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 547 - 20,538 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit