🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.4

Radius: 13.9

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.55 AU - 0.83 AU

Year: 382 Days

Day: 11.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,712,854 km

• M1: 172,935 km (0.079 R)
• M2: 611,556 km (0.118 R)
• M3: 1,170,753 km (0.113 R)
• M4: 1,630,018 km (0.113 R)
• M5: 2,121,896 km (0.075 R)
• M6: 2,665,984 km (0.114 R)
• M7: 3,171,924 km (0.099 R)
• M8: 3,658,266 km (0.104 R)
• M9: 4,233,919 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.2

Radius: 11.4

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.71 AU - 0.81 AU

Year: 442 Days

Day: 13.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,712,854 km

• M1: 141,819 km (0.07 R)
• M2: 640,728 km (0.057 R)
• M3: 1,094,907 km (0.081 R)
• M4: 1,468,154 km (0.106 R)
• M5: 1,848,880 km (0.1 R)
• M6: 2,305,303 km (0.11 R)
• M7: 2,879,161 km (0.08 R)
• M8: 3,235,204 km (0.116 R)
• M9: 3,997,255 km (0.039 R)
• M10: 4,457,119 km (0.067 R)
• M11: 5,450,748 km (0.067 R)
• M12: 6,053,478 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.7

Radius: 11.5

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.14 AU - 1.5 AU

Year: 1011 Days

Day: 12.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,712,854 km

• M1: 143,165 km (0.057 R)
• M2: 513,270 km (0.07 R)
• M3: 879,187 km (0.117 R)
• M4: 1,333,665 km (0.09 R)
• M5: 2,246,511 km (0.057 R)
• M6: 2,711,312 km (0.085 R)
• M7: 3,171,774 km (0.049 R)
• M8: 3,565,665 km (0.046 R)
• M9: 4,153,136 km (0.081 R)
• M10: 5,384,476 km (0.055 R)
• M11: 5,865,583 km (0.116 R)
• M12: 7,007,015 km (0.119 R)
• M13: 7,483,484 km (0.079 R)
• M14: 7,930,782 km (0.058 R)
• M15: 8,369,552 km (0.085 R)
• M16: 8,770,026 km (0.059 R)
• M17: 9,324,136 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.5

Radius: 12.3

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.43 AU - 1.45 AU

Year: 1152 Days

Day: 7.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,712,854 km

• M1: 153,188 km (0.116 R)
• M2: 595,549 km (0.113 R)
• M3: 1,026,690 km (0.101 R)
• M4: 1,425,817 km (0.119 R)
• M5: 1,813,276 km (0.034 R)
• M6: 2,261,172 km (0.12 R)
• M7: 2,731,208 km (0.079 R)
• M8: 3,208,426 km (0.069 R)
• M9: 3,953,722 km (0.107 R)
• M10: 4,439,915 km (0.099 R)
• M11: 5,449,402 km (0.038 R)
• M12: 7,017,935 km (0.058 R)
• M13: 7,733,761 km (0.061 R)
• M14: 9,892,309 km (0.067 R)
• M15: 11,059,920 km (0.107 R)
• M16: 11,468,771 km (0.032 R)
• M17: 11,887,944 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.1

Radius: 9.8

Gravity: 9.21 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.05 AU - 2.45 AU

Year: 2251 Days

Day: 6.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,712,854 km

• M1: 121,922 km (0.027 R)
• M2: 428,897 km (0.117 R)
• M3: 1,125,724 km (0.083 R)
• M4: 1,977,385 km (0.093 R)
• M5: 2,578,319 km (0.077 R)
• M6: 2,930,173 km (0.048 R)
• M7: 3,491,614 km (0.081 R)
• M8: 3,846,311 km (0.103 R)
• M9: 4,520,100 km (0.091 R)
• M10: 4,965,602 km (0.094 R)
• M11: 5,294,568 km (0.053 R)
• M12: 6,873,873 km (0.038 R)
• M13: 8,152,037 km (0.096 R)
• M14: 8,544,881 km (0.082 R)
• M15: 9,799,409 km (0.106 R)
• M16: 10,432,656 km (0.081 R)
• M17: 10,974,649 km (0.118 R)
• M18: 12,156,772 km (0.107 R)
• M19: 13,332,013 km (0.053 R)
• M20: 13,648,562 km (0.101 R)
• M21: 14,016,722 km (0.049 R)
• M22: 16,263,233 km (0.084 R)
• M23: 16,886,608 km (0.116 R)
• M24: 17,742,457 km (0.091 R)
• M25: 18,403,231 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.4

Radius: 13.9

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.77 AU - 2.87 AU

Year: 2356 Days

Day: 7.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,712,854 km

• M1: 172,935 km (0.091 R)
• M2: 616,942 km (0.095 R)
• M3: 1,862,344 km (0.108 R)
• M4: 2,751,853 km (0.03 R)
• M5: 5,512,831 km (0.111 R)
• M6: 6,076,366 km (0.11 R)
• M7: 6,678,348 km (0.111 R)
• M8: 7,210,169 km (0.108 R)
• M9: 7,885,753 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.1

Radius: 11.5

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.76 AU - 2.92 AU

Year: 2387 Days

Day: 12.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,712,854 km

• M1: 143,016 km (0.037 R)
• M2: 534,962 km (0.104 R)
• M3: 1,318,256 km (0.112 R)
• M4: 1,790,687 km (0.066 R)
• M5: 2,159,146 km (0.059 R)
• M6: 3,277,989 km (0.09 R)
• M7: 4,601,481 km (0.051 R)
• M8: 5,326,133 km (0.096 R)
• M9: 5,801,405 km (0.053 R)
• M10: 7,992,416 km (0.046 R)
• M11: 9,648,464 km (0.105 R)
• M12: 10,429,365 km (0.044 R)
• M13: 11,023,418 km (0.07 R)
• M14: 11,996,702 km (0.101 R)
• M15: 13,411,000 km (0.051 R)
• M16: 13,803,396 km (0.1 R)
• M17: 16,173,475 km (0.09 R)
• M18: 16,568,413 km (0.063 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.4

Radius: 10.6

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.52 AU - 3.9 AU

Year: 4765 Days

Day: 14.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 157.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 74,712,854 km

• M1: 131,796 km (0.094 R)
• M2: 837,598 km (0.088 R)
• M3: 1,394,701 km (0.097 R)
• M4: 1,871,769 km (0.045 R)
• M5: 2,217,788 km (0.115 R)
• M6: 3,482,638 km (0.116 R)
• M7: 4,645,163 km (0.089 R)
• M8: 5,343,935 km (0.067 R)
• M9: 5,958,334 km (0.057 R)
• M10: 6,916,957 km (0.042 R)
• M11: 7,328,052 km (0.099 R)
• M12: 7,828,307 km (0.098 R)
• M13: 9,138,485 km (0.098 R)
• M14: 9,634,103 km (0.111 R)
• M15: 10,017,522 km (0.072 R)
• M16: 10,589,435 km (0.113 R)
• M17: 10,997,987 km (0.117 R)
• M18: 11,559,128 km (0.114 R)
• M19: 11,943,744 km (0.089 R)
• M20: 13,097,443 km (0.09 R)
• M21: 15,859,319 km (0.038 R)
• M22: 17,564,884 km (0.101 R)
• M23: 19,322,061 km (0.112 R)
• M24: 21,625,419 km (0.114 R)
• M25: 22,730,499 km (0.035 R)
• M26: 25,213,524 km (0.087 R)
• M27: 25,617,139 km (0.103 R)
• M28: 26,189,501 km (0.062 R)
• M29: 26,520,411 km (0.047 R)
• M30: 28,915,473 km (0.094 R)
• M31: 29,984,649 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 225.5

Radius: 7.9

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.77 AU - 7.73 AU

Year: 13018 Days

Day: 21.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 158.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,712,854 km

• M1: 186,698 km (0.118 R)
• M2: 953,088 km (0.106 R)
• M3: 3,929,487 km (0.059 R)
• M4: 4,210,881 km (0.093 R)
• M5: 5,319,401 km (0.076 R)
• M6: 6,024,755 km (0.036 R)
• M7: 7,817,686 km (0.072 R)
• M8: 8,223,245 km (0.062 R)
• M9: 9,478,970 km (0.116 R)
• M10: 12,972,379 km (0.073 R)
• M11: 16,112,738 km (0.09 R)
• M12: 17,788,982 km (0.09 R)
• M13: 18,349,076 km (0.065 R)
• M14: 18,848,733 km (0.104 R)
• M15: 28,696,462 km (0.092 R)
• M16: 35,030,885 km (0.044 R)
• M17: 37,143,955 km (0.118 R)
• M18: 37,828,664 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 756.5

Radius: 7.9

Gravity: 12.12 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 7.88 AU - 10.46 AU

Year: 18518 Days

Day: 17.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,712,854 km

• M1: 98,884 km (0.108 R)
• M2: 882,029 km (0.083 R)
• M3: 1,616,405 km (0.079 R)
• M4: 3,816,690 km (0.101 R)
• M5: 4,661,918 km (0.112 R)
• M6: 5,240,713 km (0.113 R)
• M7: 8,196,318 km (0.068 R)
• M8: 12,044,274 km (0.119 R)
• M9: 13,131,701 km (0.087 R)
• M10: 26,021,502 km (0.085 R)
• M11: 27,716,596 km (0.117 R)
• M12: 28,297,634 km (0.098 R)
• M13: 28,650,087 km (0.084 R)
• M14: 30,703,168 km (0.098 R)
• M15: 38,300,944 km (0.075 R)
• M16: 39,312,525 km (0.031 R)
• M17: 40,788,458 km (0.116 R)
• M18: 49,742,190 km (0.111 R)
• M19: 51,293,520 km (0.074 R)
• M20: 59,343,979 km (0.074 R)
• M21: 72,716,383 km (0.085 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 16,153 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit