🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.3

Radius: 14.8

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.73 AU - 0.99 AU

Year: 532 Days

Day: 13.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,416,587 km

• M1: 185,053 km (0.082 R)
• M2: 658,081 km (0.081 R)
• M3: 1,155,344 km (0.11 R)
• M4: 1,741,618 km (0.088 R)
• M5: 2,312,185 km (0.089 R)
• M6: 2,928,678 km (0.12 R)
• M7: 3,412,028 km (0.117 R)
• M8: 4,202,354 km (0.107 R)
• M9: 4,821,539 km (0.102 R)
• M10: 5,432,198 km (0.054 R)
• M11: 6,474,147 km (0.076 R)
• M12: 6,991,905 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.3

Radius: 9.4

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1 AU - 1.1 AU

Year: 717 Days

Day: 10.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,416,587 km

• M1: 117,434 km (0.117 R)
• M2: 851,511 km (0.11 R)
• M3: 1,348,625 km (0.085 R)
• M4: 1,733,989 km (0.095 R)
• M5: 2,031,090 km (0.096 R)
• M6: 2,585,051 km (0.115 R)
• M7: 2,892,325 km (0.08 R)
• M8: 5,391,058 km (0.099 R)
• M9: 6,787,106 km (0.112 R)
• M10: 7,741,839 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.9

Radius: 15

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.23 AU - 1.37 AU

Year: 988 Days

Day: 9.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 37,416,587 km

• M1: 186,549 km (0.036 R)
• M2: 1,025,493 km (0.112 R)
• M3: 1,786,797 km (0.073 R)
• M4: 3,188,679 km (0.079 R)
• M5: 4,977,570 km (0.116 R)
• M6: 6,118,254 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.2

Radius: 13.1

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.34 AU - 1.4 AU

Year: 1069 Days

Day: 11.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,416,587 km

• M1: 162,912 km (0.079 R)
• M2: 609,163 km (0.118 R)
• M3: 1,154,447 km (0.115 R)
• M4: 1,620,743 km (0.111 R)
• M5: 2,462,231 km (0.027 R)
• M6: 2,976,549 km (0.087 R)
• M7: 4,072,353 km (0.066 R)
• M8: 4,540,295 km (0.103 R)
• M9: 5,710,899 km (0.119 R)
• M10: 6,976,347 km (0.061 R)
• M11: 7,831,299 km (0.092 R)
• M12: 8,558,943 km (0.073 R)
• M13: 9,689,304 km (0.095 R)
• M14: 10,306,396 km (0.036 R)
• M15: 10,753,843 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.4

Radius: 13.4

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.85 AU - 2.67 AU

Year: 2266 Days

Day: 14.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,416,587 km

• M1: 166,951 km (0.054 R)
• M2: 622,776 km (0.055 R)
• M3: 1,207,105 km (0.111 R)
• M4: 1,638,097 km (0.094 R)
• M5: 3,086,054 km (0.084 R)
• M6: 3,622,812 km (0.112 R)
• M7: 4,619,732 km (0.051 R)
• M8: 5,162,922 km (0.089 R)
• M9: 5,662,130 km (0.061 R)
• M10: 7,937,065 km (0.071 R)
• M11: 9,218,670 km (0.094 R)
• M12: 9,988,051 km (0.057 R)
• M13: 11,342,062 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896

Radius: 10.6

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.88 AU - 6.13 AU

Year: 7456 Days

Day: 13.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,416,587 km

• M1: 131,796 km (0.1 R)
• M2: 465,399 km (0.087 R)
• M3: 861,235 km (0.045 R)
• M4: 1,303,596 km (0.116 R)
• M5: 1,820,756 km (0.105 R)
• M6: 2,170,216 km (0.085 R)
• M7: 2,622,451 km (0.057 R)
• M8: 3,292,649 km (0.049 R)
• M9: 3,792,156 km (0.095 R)
• M10: 4,179,465 km (0.071 R)
• M11: 4,913,692 km (0.119 R)
• M12: 5,899,093 km (0.12 R)
• M13: 10,273,933 km (0.081 R)
• M14: 11,396,216 km (0.034 R)
• M15: 17,193,732 km (0.079 R)
• M16: 18,920,241 km (0.059 R)
• M17: 20,680,559 km (0.107 R)
• M18: 21,317,697 km (0.108 R)
• M19: 25,058,391 km (0.104 R)
• M20: 30,424,317 km (0.071 R)
• M21: 35,708,264 km (0.103 R)
• M22: 37,675,625 km (0.107 R)
• M23: 38,866,275 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.5

Radius: 14.3

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 5.2 AU - 5.8 AU

Year: 8601 Days

Day: 12.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 37,416,587 km

• M1: 178,021 km (0.101 R)
• M2: 801,845 km (0.115 R)
• M3: 1,300,753 km (0.036 R)
• M4: 3,366,850 km (0.084 R)
• M5: 4,416,877 km (0.108 R)
• M6: 5,048,928 km (0.099 R)
• M7: 5,708,056 km (0.084 R)
• M8: 6,178,990 km (0.097 R)
• M9: 6,859,661 km (0.065 R)
• M10: 7,432,172 km (0.104 R)
• M11: 8,036,398 km (0.07 R)
• M12: 8,848,714 km (0.101 R)
• M13: 13,228,491 km (0.067 R)
• M14: 14,670,614 km (0.102 R)
• M15: 15,950,574 km (0.104 R)
• M16: 18,879,102 km (0.069 R)
• M17: 21,258,905 km (0.077 R)
• M18: 23,574,829 km (0.073 R)
• M19: 25,418,773 km (0.059 R)
• M20: 27,832,983 km (0.081 R)
• M21: 34,420,525 km (0.104 R)
• M22: 35,535,777 km (0.12 R)
• M23: 37,956,271 km (0.045 R)
• M24: 38,429,449 km (0.038 R)
• M25: 39,751,146 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 837

Radius: 7.6

Gravity: 14.49 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4.88 AU - 7.58 AU

Year: 10370 Days

Day: 21.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 37,416,587 km

• M1: 108,309 km (0.109 R)
• M2: 365,916 km (0.112 R)
• M3: 652,546 km (0.098 R)
• M4: 1,026,241 km (0.094 R)
• M5: 1,453,643 km (0.114 R)
• M6: 1,779,766 km (0.069 R)
• M7: 3,038,782 km (0.101 R)
• M8: 4,145,806 km (0.117 R)
• M9: 5,890,117 km (0.116 R)
• M10: 7,169,478 km (0.031 R)
• M11: 9,297,657 km (0.11 R)
• M12: 10,319,261 km (0.083 R)
• M13: 11,470,566 km (0.052 R)
• M14: 12,827,269 km (0.067 R)
• M15: 15,436,256 km (0.092 R)
• M16: 16,791,314 km (0.106 R)
• M17: 17,160,671 km (0.087 R)
• M18: 19,410,922 km (0.043 R)
• M19: 20,230,569 km (0.043 R)
• M20: 21,589,516 km (0.107 R)
• M21: 23,648,132 km (0.092 R)
• M22: 25,736,369 km (0.099 R)
• M23: 27,944,583 km (0.095 R)
• M24: 28,672,825 km (0.081 R)
• M25: 30,823,444 km (0.11 R)
• M26: 31,377,405 km (0.116 R)
• M27: 35,685,226 km (0.116 R)
• M28: 43,899,495 km (0.049 R)
• M29: 48,219,283 km (0.095 R)
• M30: 49,568,506 km (0.109 R)
• M31: 51,717,031 km (0.085 R)
• M32: 52,499,278 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 295.4

Radius: 6.1

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 9.03 AU - 9.77 AU

Year: 19219 Days

Day: 18.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 127.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 37,416,587 km

• M1: 76,145 km (0.071 R)
• M2: 300,542 km (0.115 R)
• M3: 616,044 km (0.104 R)
• M4: 1,725,163 km (0.112 R)
• M5: 2,158,847 km (0.097 R)
• M6: 3,000,335 km (0.057 R)
• M7: 3,366,550 km (0.119 R)
• M8: 3,600,222 km (0.113 R)
• M9: 3,816,990 km (0.074 R)
• M10: 4,042,583 km (0.059 R)
• M11: 4,336,992 km (0.099 R)
• M12: 5,238,169 km (0.107 R)
• M13: 5,696,537 km (0.093 R)
• M14: 9,580,996 km (0.088 R)
• M15: 13,015,912 km (0.117 R)
• M16: 15,785,119 km (0.11 R)
• M17: 16,814,053 km (0.095 R)
• M18: 17,965,507 km (0.071 R)
• M19: 36,382,501 km (0.082 R)
• M20: 37,526,177 km (0.088 R)
• M21: 38,042,140 km (0.118 R)
• M22: 39,088,278 km (0.08 R)
• M23: 44,896,565 km (0.062 R)
• M24: 48,919,252 km (0.059 R)
• M25: 49,844,664 km (0.083 R)
• M26: 50,155,678 km (0.039 R)
• M27: 53,175,610 km (0.073 R)
• M28: 53,500,387 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86

Radius: 3.6

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 8.91 AU - 10.05 AU

Year: 19464 Days

Day: 22.9 Hours

Environment

Temp: -242 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 37,416,587 km

• M1: 45,179 km (0.104 R)
• M2: 464,801 km (0.048 R)
• M3: 1,339,499 km (0.106 R)
• M4: 1,633,459 km (0.039 R)
• M5: 3,730,073 km (0.101 R)
• M6: 4,361,227 km (0.075 R)
• M7: 5,119,688 km (0.096 R)
• M8: 5,391,058 km (0.111 R)
• M9: 6,503,019 km (0.052 R)
• M10: 8,361,623 km (0.105 R)
• M11: 9,168,704 km (0.032 R)
• M12: 10,450,758 km (0.119 R)
• M13: 12,321,778 km (0.09 R)
• M14: 16,385,455 km (0.045 R)
• M15: 17,643,573 km (0.047 R)
• M16: 19,979,394 km (0.068 R)
• M17: 22,593,168 km (0.044 R)
• M18: 22,834,170 km (0.084 R)
• M19: 23,321,261 km (0.079 R)
• M20: 24,148,537 km (0.1 R)
• M21: 24,909,691 km (0.102 R)
• M22: 26,837,260 km (0.106 R)
• M23: 28,486,576 km (0.068 R)
• M24: 29,335,993 km (0.119 R)
• M25: 33,109,001 km (0.062 R)
• M26: 34,258,660 km (0.068 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 223 - 17,894 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit