🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.42 AU - 0.66 AU

Year: 256 Days

Day: 21.3 Hours

Environment

Temp: -116 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.2

Radius: 12.3

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.69 AU - 0.87 AU

Year: 445 Days

Day: 12.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 93,034,893 km

• M1: 153,039 km (0.114 R)
• M2: 579,692 km (0.104 R)
• M3: 971,937 km (0.11 R)
• M4: 2,335,073 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.3

Radius: 11.6

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.66 AU - 1.02 AU

Year: 497 Days

Day: 6.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 93,034,893 km

• M1: 144,212 km (0.12 R)
• M2: 580,290 km (0.064 R)
• M3: 1,079,498 km (0.045 R)
• M4: 1,599,650 km (0.085 R)
• M5: 1,997,730 km (0.082 R)
• M6: 2,382,645 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.9

Radius: 10.7

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.17 AU - 1.69 AU

Year: 1104 Days

Day: 8.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 93,034,893 km

• M1: 133,142 km (0.118 R)
• M2: 506,838 km (0.106 R)
• M3: 916,586 km (0.111 R)
• M4: 1,332,019 km (0.032 R)
• M5: 1,795,773 km (0.086 R)
• M6: 2,130,722 km (0.109 R)
• M7: 2,916,560 km (0.106 R)
• M8: 3,295,641 km (0.083 R)
• M9: 3,836,138 km (0.053 R)
• M10: 4,188,441 km (0.113 R)
• M11: 4,635,888 km (0.104 R)
• M12: 5,075,706 km (0.118 R)
• M13: 5,907,171 km (0.103 R)
• M14: 6,517,979 km (0.083 R)
• M15: 8,107,756 km (0.091 R)
• M16: 8,606,066 km (0.094 R)
• M17: 8,978,415 km (0.067 R)
• M18: 10,003,909 km (0.058 R)
• M19: 11,547,759 km (0.035 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.1

Radius: 14.8

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.29 AU - 1.61 AU

Year: 1127 Days

Day: 12.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 93,034,893 km

• M1: 184,005 km (0.105 R)
• M2: 674,686 km (0.079 R)
• M3: 1,353,562 km (0.076 R)
• M4: 2,485,569 km (0.087 R)
• M5: 3,516,448 km (0.119 R)
• M6: 4,253,516 km (0.084 R)
• M7: 4,785,037 km (0.111 R)
• M8: 5,909,415 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.8

Radius: 9

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.64 AU - 1.8 AU

Year: 1456 Days

Day: 11.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 93,034,893 km

• M1: 112,049 km (0.067 R)
• M2: 725,550 km (0.111 R)
• M3: 1,504,955 km (0.111 R)
• M4: 1,868,926 km (0.076 R)
• M5: 2,230,504 km (0.045 R)
• M6: 3,724,688 km (0.058 R)
• M7: 8,089,804 km (0.042 R)
• M8: 8,473,822 km (0.055 R)
• M9: 8,808,323 km (0.082 R)
• M10: 9,898,143 km (0.072 R)
• M11: 11,772,754 km (0.114 R)
• M12: 12,460,007 km (0.072 R)
• M13: 13,214,130 km (0.098 R)
• M14: 13,998,471 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.6

Radius: 12.7

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.72 AU - 2.56 AU

Year: 2021 Days

Day: 10.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 93,034,893 km

• M1: 157,975 km (0.109 R)
• M2: 730,337 km (0.064 R)
• M3: 1,928,915 km (0.104 R)
• M4: 2,597,917 km (0.102 R)
• M5: 3,796,196 km (0.111 R)
• M6: 4,869,261 km (0.08 R)
• M7: 5,440,875 km (0.093 R)
• M8: 6,534,136 km (0.096 R)
• M9: 7,722,840 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.8

Radius: 7.9

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 8.02 AU - 9 AU

Year: 16029 Days

Day: 17.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 73.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 93,034,893 km

• M1: 98,286 km (0.08 R)
• M2: 363,972 km (0.1 R)
• M3: 910,303 km (0.102 R)
• M4: 1,420,581 km (0.083 R)
• M5: 1,841,251 km (0.115 R)
• M6: 2,955,904 km (0.096 R)
• M7: 3,810,856 km (0.118 R)
• M8: 4,280,444 km (0.034 R)
• M9: 4,788,179 km (0.096 R)
• M10: 5,551,128 km (0.066 R)
• M11: 7,142,102 km (0.031 R)
• M12: 8,374,489 km (0.097 R)
• M13: 9,742,861 km (0.112 R)
• M14: 11,021,025 km (0.091 R)
• M15: 13,570,771 km (0.116 R)
• M16: 14,385,780 km (0.071 R)
• M17: 15,160,996 km (0.033 R)
• M18: 16,794,755 km (0.084 R)
• M19: 17,181,914 km (0.117 R)
• M20: 22,864,987 km (0.072 R)
• M21: 25,511,972 km (0.042 R)
• M22: 26,751,390 km (0.106 R)
• M23: 30,825,539 km (0.034 R)
• M24: 37,093,091 km (0.086 R)
• M25: 38,280,749 km (0.03 R)
• M26: 41,712,374 km (0.088 R)
• M27: 41,995,563 km (0.038 R)
• M28: 42,996,522 km (0.099 R)
• M29: 44,306,551 km (0.118 R)
• M30: 46,853,604 km (0.118 R)
• M31: 49,496,550 km (0.114 R)
• M32: 55,589,372 km (0.118 R)
• M33: 58,904,012 km (0.11 R)
• M34: 59,618,192 km (0.103 R)
• M35: 60,157,642 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 562.5

Radius: 4.4

Gravity: 29.05 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 8.18 AU - 11.04 AU

Year: 19235 Days

Day: 24.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 93,034,893 km

• M1: 54,753 km (0.061 R)
• M2: 200,162 km (0.031 R)
• M3: 377,735 km (0.067 R)
• M4: 553,363 km (0.119 R)
• M5: 1,610,421 km (0.076 R)
• M6: 4,106,611 km (0.09 R)
• M7: 4,428,097 km (0.099 R)
• M8: 4,628,857 km (0.049 R)
• M9: 5,883,684 km (0.119 R)
• M10: 6,503,319 km (0.098 R)
• M11: 7,119,811 km (0.103 R)
• M12: 7,256,843 km (0.042 R)
• M13: 9,148,807 km (0.065 R)
• M14: 9,696,485 km (0.113 R)
• M15: 9,921,630 km (0.115 R)
• M16: 10,857,065 km (0.089 R)
• M17: 11,849,647 km (0.098 R)
• M18: 14,740,776 km (0.116 R)
• M19: 15,340,214 km (0.094 R)
• M20: 16,033,750 km (0.057 R)
• M21: 16,190,678 km (0.048 R)
• M22: 19,017,480 km (0.101 R)
• M23: 23,141,743 km (0.095 R)
• M24: 24,155,718 km (0.113 R)
• M25: 25,731,582 km (0.034 R)
• M26: 26,054,713 km (0.1 R)
• M27: 29,554,705 km (0.089 R)
• M28: 30,747,299 km (0.081 R)
• M29: 34,126,865 km (0.067 R)
• M30: 45,420,457 km (0.118 R)
• M31: 46,846,274 km (0.119 R)
• M32: 47,813,275 km (0.094 R)
• M33: 52,848,290 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 994.6

Radius: 8

Gravity: 15.54 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 10.61 AU - 10.69 AU

Year: 22441 Days

Day: 19.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 93,034,893 km

• M1: 99,632 km (0.068 R)
• M2: 459,116 km (0.082 R)
• M3: 831,914 km (0.051 R)
• M4: 1,290,282 km (0.075 R)
• M5: 1,622,389 km (0.113 R)
• M6: 2,053,380 km (0.08 R)
• M7: 2,534,188 km (0.092 R)
• M8: 2,814,834 km (0.08 R)
• M9: 3,752,214 km (0.08 R)
• M10: 4,471,780 km (0.102 R)
• M11: 6,551,639 km (0.077 R)
• M12: 6,935,806 km (0.048 R)
• M13: 7,385,946 km (0.107 R)
• M14: 8,624,766 km (0.076 R)
• M15: 9,323,538 km (0.078 R)
• M16: 11,646,793 km (0.087 R)
• M17: 11,997,450 km (0.066 R)
• M18: 15,061,065 km (0.086 R)
• M19: 18,138,742 km (0.109 R)
• M20: 18,610,125 km (0.096 R)
• M21: 19,186,525 km (0.055 R)
• M22: 19,675,860 km (0.105 R)
• M23: 21,090,457 km (0.102 R)
• M24: 22,034,869 km (0.11 R)
• M25: 25,621,927 km (0.093 R)
• M26: 27,306,847 km (0.103 R)
• M27: 34,212,584 km (0.086 R)
• M28: 36,252,950 km (0.096 R)
• M29: 38,218,965 km (0.074 R)
• M30: 38,682,569 km (0.097 R)
• M31: 43,025,395 km (0.106 R)
• M32: 48,761,127 km (0.108 R)
• M33: 50,780,698 km (0.105 R)
• M34: 54,010,666 km (0.052 R)
• M35: 56,172,205 km (0.109 R)
• M36: 64,299,858 km (0.083 R)
• M37: 90,274,685 km (0.079 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: 408 - 11,957 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit