🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.46 AU - 0.56 AU

Year: 239 Days

Day: 35 Hours

Environment

Temp: -110 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.56 AU - 0.58 AU

Year: 282 Days

Day: 30 Hours

Environment

Temp: -119 °C

Axial Tilt: 13.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.9

Radius: 9.3

Gravity: 9.32 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.62 AU - 0.94 AU

Year: 452 Days

Day: 8.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,696,906 km

• M1: 115,639 km (0.074 R)
• M2: 510,129 km (0.119 R)
• M3: 817,253 km (0.057 R)
• M4: 1,210,995 km (0.111 R)
• M5: 1,610,870 km (0.064 R)
• M6: 1,911,711 km (0.059 R)
• M7: 2,305,902 km (0.082 R)
• M8: 2,796,583 km (0.087 R)
• M9: 3,118,816 km (0.088 R)
• M10: 3,617,127 km (0.072 R)
• M11: 4,097,635 km (0.1 R)
• M12: 4,560,042 km (0.069 R)
• M13: 5,452,842 km (0.054 R)
• M14: 5,923,028 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.7

Radius: 9.8

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.67 AU - 1.01 AU

Year: 505 Days

Day: 8.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 88,696,906 km

• M1: 121,922 km (0.09 R)
• M2: 491,429 km (0.103 R)
• M3: 1,185,264 km (0.116 R)
• M4: 1,594,863 km (0.091 R)
• M5: 2,642,497 km (0.077 R)
• M6: 4,382,918 km (0.043 R)
• M7: 4,744,496 km (0.072 R)
• M8: 5,257,617 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.7

Radius: 11.2

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.99 AU - 1.19 AU

Year: 747 Days

Day: 7.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 88,696,906 km

• M1: 139,276 km (0.073 R)
• M2: 558,000 km (0.097 R)
• M3: 1,238,820 km (0.087 R)
• M4: 1,717,384 km (0.113 R)
• M5: 3,003,776 km (0.065 R)
• M6: 3,521,833 km (0.097 R)
• M7: 4,086,565 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.6

Radius: 14.3

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.5 AU - 1.52 AU

Year: 1217 Days

Day: 14 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,696,906 km

• M1: 178,321 km (0.105 R)
• M2: 691,292 km (0.101 R)
• M3: 1,155,644 km (0.087 R)
• M4: 1,641,089 km (0.096 R)
• M5: 2,365,292 km (0.096 R)
• M6: 3,310,302 km (0.105 R)
• M7: 3,886,852 km (0.109 R)
• M8: 5,263,451 km (0.095 R)
• M9: 6,031,337 km (0.069 R)
• M10: 7,637,121 km (0.111 R)
• M11: 8,213,372 km (0.081 R)
• M12: 10,494,291 km (0.061 R)
• M13: 11,075,778 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.1

Radius: 9.1

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.87 AU - 3.07 AU

Year: 3358 Days

Day: 11 Hours

Environment

Temp: -199 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 88,696,906 km

• M1: 118,332 km (0.061 R)
• M2: 544,686 km (0.103 R)
• M3: 1,016,069 km (0.104 R)
• M4: 1,756,578 km (0.06 R)
• M5: 2,111,125 km (0.045 R)
• M6: 3,016,043 km (0.113 R)
• M7: 3,698,658 km (0.04 R)
• M8: 4,076,841 km (0.09 R)
• M9: 4,911,148 km (0.085 R)
• M10: 5,418,884 km (0.072 R)
• M11: 6,122,442 km (0.082 R)
• M12: 6,653,216 km (0.109 R)
• M13: 10,195,244 km (0.064 R)
• M14: 10,544,256 km (0.102 R)
• M15: 11,639,313 km (0.076 R)
• M16: 15,632,678 km (0.099 R)
• M17: 16,677,320 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 976.2

Radius: 3.3

Gravity: 89.64 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 6.25 AU - 8.23 AU

Year: 12780 Days

Day: 15.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 88,696,906 km

• M1: 41,139 km (0.05 R)
• M2: 183,706 km (0.109 R)
• M3: 305,928 km (0.101 R)
• M4: 963,261 km (0.06 R)
• M5: 1,106,127 km (0.088 R)
• M6: 1,290,581 km (0.084 R)
• M7: 1,824,496 km (0.107 R)
• M8: 2,647,882 km (0.055 R)
• M9: 3,388,691 km (0.103 R)
• M10: 4,226,888 km (0.031 R)
• M11: 4,512,919 km (0.119 R)
• M12: 4,983,404 km (0.075 R)
• M13: 5,787,343 km (0.114 R)
• M14: 6,382,743 km (0.115 R)
• M15: 7,647,593 km (0.11 R)
• M16: 9,018,657 km (0.118 R)
• M17: 9,332,364 km (0.096 R)
• M18: 10,260,918 km (0.08 R)
• M19: 12,046,668 km (0.108 R)
• M20: 14,521,166 km (0.071 R)
• M21: 15,243,724 km (0.084 R)
• M22: 20,089,797 km (0.081 R)
• M23: 21,629,010 km (0.111 R)
• M24: 26,184,714 km (0.092 R)
• M25: 26,608,674 km (0.105 R)
• M26: 27,470,208 km (0.075 R)
• M27: 28,461,444 km (0.089 R)
• M28: 32,058,524 km (0.119 R)
• M29: 36,601,961 km (0.065 R)
• M30: 37,666,799 km (0.109 R)
• M31: 38,342,682 km (0.118 R)
• M32: 42,277,705 km (0.045 R)
• M33: 42,422,964 km (0.057 R)
• M34: 44,192,857 km (0.078 R)
• M35: 46,011,219 km (0.084 R)
• M36: 46,473,476 km (0.112 R)
• M37: 47,564,045 km (0.066 R)
• M38: 49,634,629 km (0.049 R)
• M39: 50,610,306 km (0.117 R)
• M40: 50,938,225 km (0.043 R)
• M41: 56,557,121 km (0.082 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 872.9

Radius: 3

Gravity: 96.99 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 8.44 AU - 11.18 AU

Year: 20156 Days

Day: 24.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 88,696,906 km

• M1: 37,549 km (0.062 R)
• M2: 259,852 km (0.108 R)
• M3: 496,964 km (0.105 R)
• M4: 661,372 km (0.119 R)
• M5: 861,085 km (0.09 R)
• M6: 1,085,781 km (0.089 R)
• M7: 1,510,938 km (0.112 R)
• M8: 2,143,588 km (0.09 R)
• M9: 2,677,652 km (0.069 R)
• M10: 2,804,511 km (0.051 R)
• M11: 3,323,765 km (0.069 R)
• M12: 3,440,901 km (0.054 R)
• M13: 3,714,216 km (0.094 R)
• M14: 4,513,966 km (0.104 R)
• M15: 4,767,235 km (0.089 R)
• M16: 7,793,301 km (0.113 R)
• M17: 8,478,908 km (0.1 R)
• M18: 9,318,751 km (0.116 R)
• M19: 15,549,053 km (0.089 R)
• M20: 16,461,301 km (0.089 R)
• M21: 18,665,925 km (0.115 R)
• M22: 20,663,655 km (0.08 R)
• M23: 37,289,962 km (0.084 R)
• M24: 39,673,505 km (0.119 R)
• M25: 40,592,784 km (0.051 R)
• M26: 41,369,795 km (0.066 R)
• M27: 46,578,045 km (0.082 R)
• M28: 48,638,606 km (0.105 R)
• M29: 52,572,581 km (0.106 R)
• M30: 54,241,196 km (0.112 R)
• M31: 55,944,817 km (0.045 R)
• M32: 70,206,281 km (0.109 R)
• M33: 72,455,036 km (0.087 R)
• M34: 73,827,148 km (0.066 R)
• M35: 78,525,718 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 904.4

Radius: 3.6

Gravity: 69.78 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 9.41 AU - 11.33 AU

Year: 21907 Days

Day: 16.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 88,696,906 km

• M1: 44,730 km (0.034 R)
• M2: 169,345 km (0.112 R)
• M3: 320,738 km (0.103 R)
• M4: 487,988 km (0.061 R)
• M5: 712,235 km (0.097 R)
• M6: 854,054 km (0.045 R)
• M7: 1,888,524 km (0.037 R)
• M8: 2,842,210 km (0.091 R)
• M9: 3,259,738 km (0.119 R)
• M10: 3,944,297 km (0.108 R)
• M11: 4,909,353 km (0.092 R)
• M12: 7,804,371 km (0.026 R)
• M13: 10,732,151 km (0.089 R)
• M14: 11,326,952 km (0.108 R)
• M15: 17,884,276 km (0.101 R)
• M16: 20,969,283 km (0.108 R)
• M17: 21,584,579 km (0.079 R)
• M18: 22,636,851 km (0.049 R)
• M19: 30,063,188 km (0.115 R)
• M20: 32,178,203 km (0.11 R)
• M21: 41,791,960 km (0.099 R)
• M22: 42,929,054 km (0.118 R)
• M23: 45,605,060 km (0.054 R)
• M24: 50,918,328 km (0.042 R)
• M25: 56,236,084 km (0.107 R)
• M26: 59,028,477 km (0.102 R)
• M27: 60,047,688 km (0.077 R)
• M28: 66,191,971 km (0.096 R)
• M29: 70,893,683 km (0.099 R)
• M30: 72,975,038 km (0.114 R)
• M31: 77,989,260 km (0.068 R)
• M32: 78,478,445 km (0.089 R)
• M33: 83,739,203 km (0.12 R)
• M34: 85,543,503 km (0.073 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 296 - 12,237 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit