🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.6

Radius: 8.6

Gravity: 11.91 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.63 AU - 0.67 AU

Year: 362 Days

Day: 12.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,197,417 km

• M1: 107,561 km (0.031 R)
• M2: 475,721 km (0.101 R)
• M3: 835,953 km (0.075 R)
• M4: 1,238,371 km (0.107 R)
• M5: 1,580,202 km (0.075 R)
• M6: 2,274,037 km (0.051 R)
• M7: 2,640,702 km (0.032 R)
• M8: 2,960,093 km (0.057 R)
• M9: 3,410,532 km (0.117 R)
• M10: 4,010,569 km (0.097 R)
• M11: 4,294,356 km (0.074 R)
• M12: 4,933,139 km (0.076 R)
• M13: 5,617,101 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.7

Radius: 10.2

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.64 AU - 0.84 AU

Year: 439 Days

Day: 6.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,197,417 km

• M1: 126,859 km (0.072 R)
• M2: 486,941 km (0.095 R)
• M3: 986,897 km (0.044 R)
• M4: 1,329,626 km (0.111 R)
• M5: 1,679,087 km (0.115 R)
• M6: 2,221,229 km (0.111 R)
• M7: 2,781,922 km (0.067 R)
• M8: 3,107,597 km (0.086 R)
• M9: 3,483,087 km (0.103 R)
• M10: 3,836,587 km (0.11 R)
• M11: 4,919,227 km (0.104 R)
• M12: 5,615,904 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.8

Radius: 9.3

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.56 AU - 2.62 AU

Year: 2877 Days

Day: 13.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,197,417 km

• M1: 115,639 km (0.05 R)
• M2: 407,804 km (0.093 R)
• M3: 984,055 km (0.112 R)
• M4: 1,363,585 km (0.087 R)
• M5: 2,080,607 km (0.029 R)
• M6: 2,685,731 km (0.077 R)
• M7: 4,082,376 km (0.099 R)
• M8: 4,984,601 km (0.064 R)
• M9: 5,936,343 km (0.05 R)
• M10: 6,524,262 km (0.029 R)
• M11: 7,091,837 km (0.082 R)
• M12: 8,925,458 km (0.08 R)
• M13: 11,253,350 km (0.088 R)
• M14: 13,190,044 km (0.082 R)
• M15: 13,821,048 km (0.107 R)
• M16: 14,757,381 km (0.056 R)
• M17: 15,094,874 km (0.032 R)
• M18: 18,703,324 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.4

Radius: 10.4

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.35 AU - 5.55 AU

Year: 6480 Days

Day: 10.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 143.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,197,417 km

• M1: 147,803 km (0.105 R)
• M2: 678,726 km (0.106 R)
• M3: 1,148,164 km (0.027 R)
• M4: 1,571,825 km (0.101 R)
• M5: 1,991,148 km (0.102 R)
• M6: 3,333,340 km (0.11 R)
• M7: 3,983,193 km (0.074 R)
• M8: 4,605,670 km (0.113 R)
• M9: 5,754,132 km (0.089 R)
• M10: 6,831,536 km (0.103 R)
• M11: 7,305,612 km (0.088 R)
• M12: 8,158,170 km (0.058 R)
• M13: 8,904,065 km (0.047 R)
• M14: 13,275,165 km (0.103 R)
• M15: 17,051,614 km (0.113 R)
• M16: 19,544,663 km (0.095 R)
• M17: 22,829,383 km (0.032 R)
• M18: 24,814,098 km (0.078 R)
• M19: 26,023,746 km (0.06 R)
• M20: 29,600,033 km (0.12 R)
• M21: 35,182,278 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.6

Radius: 14.4

Gravity: 0.05 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 4.37 AU - 5.07 AU

Year: 7078 Days

Day: 5.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 34,197,417 km

• M1: 179,069 km (0.098 R)
• M2: 639,232 km (0.071 R)
• M3: 1,549,236 km (0.066 R)
• M4: 2,004,611 km (0.082 R)
• M5: 2,782,670 km (0.118 R)
• M6: 5,329,873 km (0.025 R)
• M7: 9,320,247 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.5

Radius: 14.8

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.83 AU - 5.77 AU

Year: 8422 Days

Day: 10.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,197,417 km

• M1: 221,554 km (0.054 R)
• M2: 978,220 km (0.109 R)
• M3: 1,446,611 km (0.117 R)
• M4: 2,152,863 km (0.115 R)
• M5: 2,886,341 km (0.075 R)
• M6: 3,538,139 km (0.116 R)
• M7: 4,076,243 km (0.025 R)
• M8: 5,785,698 km (0.032 R)
• M9: 7,129,087 km (0.057 R)
• M10: 9,421,076 km (0.118 R)
• M11: 9,898,293 km (0.031 R)
• M12: 10,571,633 km (0.093 R)
• M13: 11,087,297 km (0.107 R)
• M14: 15,791,402 km (0.119 R)
• M15: 16,271,461 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 332.5

Radius: 4

Gravity: 20.78 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.76 AU - 6.94 AU

Year: 11045 Days

Day: 20.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 34,197,417 km

• M1: 50,115 km (0.117 R)
• M2: 208,240 km (0.113 R)
• M3: 460,612 km (0.101 R)
• M4: 648,208 km (0.107 R)
• M5: 858,692 km (0.118 R)
• M6: 1,391,859 km (0.09 R)
• M7: 1,744,012 km (0.119 R)
• M8: 2,780,127 km (0.035 R)
• M9: 2,964,880 km (0.073 R)
• M10: 3,336,033 km (0.104 R)
• M11: 4,636,188 km (0.114 R)
• M12: 4,866,868 km (0.061 R)
• M13: 5,637,446 km (0.097 R)
• M14: 5,967,309 km (0.091 R)
• M15: 6,521,719 km (0.107 R)
• M16: 6,811,490 km (0.112 R)
• M17: 7,034,391 km (0.098 R)
• M18: 7,416,763 km (0.112 R)
• M19: 8,015,903 km (0.114 R)
• M20: 9,724,011 km (0.081 R)
• M21: 10,102,045 km (0.095 R)
• M22: 11,346,849 km (0.103 R)
• M23: 13,141,874 km (0.089 R)
• M24: 14,076,711 km (0.096 R)
• M25: 14,438,438 km (0.083 R)
• M26: 15,180,294 km (0.078 R)
• M27: 15,306,405 km (0.06 R)
• M28: 16,340,426 km (0.108 R)
• M29: 17,697,279 km (0.053 R)
• M30: 21,414,636 km (0.047 R)
• M31: 23,119,753 km (0.1 R)
• M32: 23,707,672 km (0.093 R)
• M33: 26,797,467 km (0.065 R)
• M34: 31,970,860 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 181.6

Radius: 6.6

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 5.52 AU - 7.68 AU

Year: 11704 Days

Day: 23.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,197,417 km

• M1: 82,279 km (0.064 R)
• M2: 847,173 km (0.107 R)
• M3: 1,866,832 km (0.094 R)
• M4: 3,295,641 km (0.101 R)
• M5: 4,046,772 km (0.11 R)
• M6: 9,279,107 km (0.102 R)
• M7: 12,189,384 km (0.057 R)
• M8: 12,657,027 km (0.087 R)
• M9: 14,302,454 km (0.056 R)
• M10: 18,346,982 km (0.077 R)
• M11: 19,030,196 km (0.107 R)
• M12: 19,730,164 km (0.071 R)
• M13: 20,230,270 km (0.101 R)
• M14: 21,781,300 km (0.114 R)
• M15: 23,093,722 km (0.081 R)
• M16: 23,729,214 km (0.048 R)
• M17: 26,734,037 km (0.052 R)
• M18: 33,891,248 km (0.101 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 18,073 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit