🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.8

Radius: 9.3

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.71 AU - 0.87 AU

Year: 453 Days

Day: 6.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,135,835 km

• M1: 115,938 km (0.094 R)
• M2: 414,087 km (0.093 R)
• M3: 748,887 km (0.059 R)
• M4: 1,052,870 km (0.103 R)
• M5: 1,600,398 km (0.096 R)
• M6: 1,900,940 km (0.088 R)
• M7: 2,419,147 km (0.109 R)
• M8: 3,061,520 km (0.118 R)
• M9: 3,602,616 km (0.066 R)
• M10: 3,915,575 km (0.032 R)
• M11: 4,356,739 km (0.096 R)
• M12: 4,771,574 km (0.114 R)
• M13: 5,402,877 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.1

Radius: 9.5

Gravity: 9.18 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.85 AU - 1.07 AU

Year: 607 Days

Day: 14.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,135,835 km

• M1: 118,182 km (0.075 R)
• M2: 431,739 km (0.074 R)
• M3: 821,592 km (0.096 R)
• M4: 1,223,561 km (0.066 R)
• M5: 1,690,007 km (0.075 R)
• M6: 1,997,281 km (0.11 R)
• M7: 2,550,943 km (0.057 R)
• M8: 2,958,747 km (0.114 R)
• M9: 3,721,546 km (0.076 R)
• M10: 4,340,582 km (0.08 R)
• M11: 5,468,401 km (0.038 R)
• M12: 6,228,956 km (0.12 R)
• M13: 7,232,758 km (0.088 R)
• M14: 7,544,969 km (0.055 R)
• M15: 7,842,968 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.8

Radius: 14.3

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.02 AU - 1.08 AU

Year: 695 Days

Day: 14.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,135,835 km

• M1: 179,517 km (0.053 R)
• M2: 686,953 km (0.097 R)
• M3: 1,152,801 km (0.107 R)
• M4: 1,732,792 km (0.078 R)
• M5: 2,212,403 km (0.075 R)
• M6: 2,804,661 km (0.062 R)
• M7: 3,265,722 km (0.052 R)
• M8: 3,792,156 km (0.114 R)
• M9: 4,328,166 km (0.116 R)
• M10: 4,847,121 km (0.109 R)
• M11: 5,760,715 km (0.105 R)
• M12: 6,390,671 km (0.098 R)
• M13: 7,489,767 km (0.11 R)
• M14: 8,025,028 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967

Radius: 14.6

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.22 AU - 1.3 AU

Year: 913 Days

Day: 9.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,135,835 km

• M1: 181,761 km (0.096 R)
• M2: 649,255 km (0.115 R)
• M3: 1,120,039 km (0.085 R)
• M4: 1,654,702 km (0.099 R)
• M5: 2,328,192 km (0.111 R)
• M6: 3,018,885 km (0.086 R)
• M7: 3,859,475 km (0.104 R)
• M8: 5,019,757 km (0.119 R)
• M9: 5,548,884 km (0.098 R)
• M10: 6,050,486 km (0.034 R)
• M11: 6,674,010 km (0.068 R)
• M12: 7,145,542 km (0.072 R)
• M13: 7,613,933 km (0.11 R)
• M14: 8,368,804 km (0.088 R)
• M15: 9,116,045 km (0.106 R)
• M16: 9,998,074 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.5

Radius: 13.3

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.03 AU - 1.59 AU

Year: 968 Days

Day: 8.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,135,835 km

• M1: 165,455 km (0.083 R)
• M2: 593,006 km (0.089 R)
• M3: 1,200,224 km (0.117 R)
• M4: 1,933,403 km (0.097 R)
• M5: 2,562,013 km (0.065 R)
• M6: 3,405,596 km (0.063 R)
• M7: 5,117,893 km (0.105 R)
• M8: 6,101,798 km (0.063 R)
• M9: 6,981,284 km (0.057 R)
• M10: 7,510,711 km (0.037 R)
• M11: 8,066,766 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88

Radius: 8.7

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.5 AU - 2.2 AU

Year: 1625 Days

Day: 10.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,135,835 km

• M1: 116,387 km (0.118 R)
• M2: 441,912 km (0.116 R)
• M3: 1,194,389 km (0.055 R)
• M4: 1,579,903 km (0.114 R)
• M5: 1,907,223 km (0.11 R)
• M6: 2,318,917 km (0.063 R)
• M7: 2,604,200 km (0.045 R)
• M8: 2,878,861 km (0.115 R)
• M9: 3,197,355 km (0.074 R)
• M10: 4,746,890 km (0.104 R)
• M11: 5,091,863 km (0.061 R)
• M12: 6,442,731 km (0.065 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 794.5

Radius: 3.9

Gravity: 52.24 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.54 AU - 7.5 AU

Year: 9537 Days

Day: 24 Hours

Environment

Temp: -211 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 56,135,835 km

• M1: 52,958 km (0.104 R)
• M2: 176,675 km (0.092 R)
• M3: 332,855 km (0.112 R)
• M4: 499,956 km (0.114 R)
• M5: 756,666 km (0.11 R)
• M6: 905,217 km (0.103 R)
• M7: 1,095,804 km (0.077 R)
• M8: 1,312,721 km (0.102 R)
• M9: 1,691,204 km (0.098 R)
• M10: 1,848,581 km (0.094 R)
• M11: 3,359,220 km (0.113 R)
• M12: 3,843,618 km (0.09 R)
• M13: 4,315,151 km (0.048 R)
• M14: 4,550,019 km (0.066 R)
• M15: 5,013,174 km (0.094 R)
• M16: 6,629,579 km (0.083 R)
• M17: 8,381,819 km (0.052 R)
• M18: 8,609,208 km (0.031 R)
• M19: 9,908,017 km (0.085 R)
• M20: 12,887,109 km (0.11 R)
• M21: 13,497,318 km (0.045 R)
• M22: 13,621,634 km (0.108 R)
• M23: 15,375,968 km (0.106 R)
• M24: 15,992,611 km (0.107 R)
• M25: 18,016,520 km (0.077 R)
• M26: 18,624,636 km (0.086 R)
• M27: 20,778,396 km (0.119 R)
• M28: 28,837,682 km (0.077 R)
• M29: 33,494,814 km (0.098 R)
• M30: 34,413,195 km (0.119 R)
• M31: 35,112,864 km (0.107 R)
• M32: 38,379,334 km (0.102 R)
• M33: 41,055,490 km (0.08 R)
• M34: 42,239,707 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 606

Radius: 6.1

Gravity: 16.29 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 6.84 AU - 8.32 AU

Year: 13475 Days

Day: 21.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,135,835 km

• M1: 75,846 km (0.092 R)
• M2: 376,239 km (0.067 R)
• M3: 573,109 km (0.111 R)
• M4: 1,191,547 km (0.083 R)
• M5: 1,982,621 km (0.07 R)
• M6: 2,240,527 km (0.072 R)
• M7: 2,583,854 km (0.069 R)
• M8: 2,846,997 km (0.113 R)
• M9: 3,299,979 km (0.068 R)
• M10: 3,799,936 km (0.113 R)
• M11: 6,550,891 km (0.08 R)
• M12: 8,516,756 km (0.092 R)
• M13: 12,737,959 km (0.096 R)
• M14: 14,093,466 km (0.116 R)
• M15: 14,429,911 km (0.1 R)
• M16: 20,310,305 km (0.042 R)
• M17: 21,087,465 km (0.117 R)
• M18: 25,869,062 km (0.1 R)
• M19: 28,994,311 km (0.108 R)
• M20: 31,554,380 km (0.096 R)
• M21: 32,479,044 km (0.053 R)
• M22: 38,540,301 km (0.093 R)
• M23: 38,934,043 km (0.116 R)
• M24: 39,596,462 km (0.085 R)
• M25: 46,936,182 km (0.116 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 19,545 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit