🌌 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: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.47 AU - 0.55 AU

Year: 235 Days

Day: 13 Hours

Environment

Temp: -112 °C

Axial Tilt: 22.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.54 AU - 0.66 AU

Year: 300 Days

Day: 41.4 Hours

Environment

Temp: -135 °C

Axial Tilt: 20.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,245,780 km

• M1: 333,902 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.6

Radius: 9.3

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.82 AU - 0.98 AU

Year: 551 Days

Day: 7.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,245,780 km

• M1: 115,639 km (0.098 R)
• M2: 407,056 km (0.049 R)
• M3: 1,022,651 km (0.101 R)
• M4: 1,388,867 km (0.106 R)
• M5: 1,712,896 km (0.12 R)
• M6: 2,250,999 km (0.067 R)
• M7: 2,604,499 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.3

Radius: 14.2

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.69 AU - 2.57 AU

Year: 2007 Days

Day: 12.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,245,780 km

• M1: 176,675 km (0.068 R)
• M2: 822,639 km (0.111 R)
• M3: 2,256,833 km (0.034 R)
• M4: 7,050,548 km (0.11 R)
• M5: 7,909,987 km (0.117 R)
• M6: 8,725,296 km (0.094 R)
• M7: 10,083,644 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.4

Radius: 13.2

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.41 AU - 4.03 AU

Year: 4633 Days

Day: 13.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,245,780 km

• M1: 164,109 km (0.058 R)
• M2: 657,931 km (0.089 R)
• M3: 1,308,533 km (0.036 R)
• M4: 1,732,643 km (0.11 R)
• M5: 2,652,071 km (0.114 R)
• M6: 3,213,362 km (0.111 R)
• M7: 3,960,903 km (0.116 R)
• M8: 4,821,539 km (0.052 R)
• M9: 5,552,923 km (0.069 R)
• M10: 6,297,173 km (0.085 R)
• M11: 7,074,633 km (0.096 R)
• M12: 8,746,240 km (0.112 R)
• M13: 10,882,946 km (0.05 R)
• M14: 12,049,660 km (0.081 R)
• M15: 13,597,998 km (0.099 R)
• M16: 14,683,929 km (0.111 R)
• M17: 15,549,502 km (0.108 R)
• M18: 17,263,893 km (0.088 R)
• M19: 17,681,421 km (0.109 R)
• M20: 18,723,669 km (0.102 R)
• M21: 19,483,627 km (0.115 R)
• M22: 20,863,069 km (0.057 R)
• M23: 22,660,038 km (0.117 R)
• M24: 23,889,434 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.6

Radius: 8

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 4.33 AU - 4.63 AU

Year: 6123 Days

Day: 6.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 179.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 61,245,780 km

• M1: 99,483 km (0.113 R)
• M2: 356,791 km (0.088 R)
• M3: 626,665 km (0.075 R)
• M4: 884,273 km (0.038 R)
• M5: 1,498,073 km (0.079 R)
• M6: 1,918,892 km (0.063 R)
• M7: 2,416,604 km (0.088 R)
• M8: 2,747,963 km (0.044 R)
• M9: 3,584,963 km (0.079 R)
• M10: 4,085,219 km (0.103 R)
• M11: 7,046,060 km (0.071 R)
• M12: 9,057,553 km (0.078 R)
• M13: 10,885,639 km (0.073 R)
• M14: 11,561,522 km (0.12 R)
• M15: 11,980,246 km (0.078 R)
• M16: 12,700,560 km (0.099 R)
• M17: 15,590,192 km (0.082 R)
• M18: 15,986,926 km (0.086 R)
• M19: 18,072,171 km (0.104 R)
• M20: 18,827,191 km (0.058 R)
• M21: 20,874,438 km (0.091 R)
• M22: 24,482,140 km (0.117 R)
• M23: 25,328,116 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.8

Radius: 10

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 5.4 AU - 5.66 AU

Year: 8397 Days

Day: 13.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 61,245,780 km

• M1: 128,953 km (0.076 R)
• M2: 504,444 km (0.118 R)
• M3: 823,686 km (0.054 R)
• M4: 2,052,632 km (0.101 R)
• M5: 3,708,232 km (0.069 R)
• M6: 5,040,551 km (0.086 R)
• M7: 5,465,109 km (0.118 R)
• M8: 6,079,508 km (0.082 R)
• M9: 7,679,457 km (0.056 R)
• M10: 8,790,520 km (0.083 R)
• M11: 10,194,496 km (0.11 R)
• M12: 10,825,650 km (0.085 R)
• M13: 13,846,779 km (0.079 R)
• M14: 15,111,779 km (0.029 R)
• M15: 17,870,363 km (0.095 R)
• M16: 19,588,794 km (0.111 R)
• M17: 20,412,181 km (0.053 R)
• M18: 23,685,532 km (0.086 R)
• M19: 27,850,187 km (0.095 R)
• M20: 28,699,753 km (0.114 R)
• M21: 30,949,555 km (0.09 R)
• M22: 31,657,004 km (0.096 R)
• M23: 37,824,625 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 727.5

Radius: 6.8

Gravity: 15.73 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 6.9 AU - 8.9 AU

Year: 14337 Days

Day: 15.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 61,245,780 km

• M1: 85,271 km (0.107 R)
• M2: 329,564 km (0.11 R)
• M3: 643,420 km (0.114 R)
• M4: 900,729 km (0.108 R)
• M5: 1,163,423 km (0.118 R)
• M6: 1,934,450 km (0.053 R)
• M7: 2,177,098 km (0.089 R)
• M8: 2,440,091 km (0.051 R)
• M9: 5,195,833 km (0.087 R)
• M10: 5,780,761 km (0.08 R)
• M11: 7,893,232 km (0.105 R)
• M12: 8,866,217 km (0.051 R)
• M13: 9,754,080 km (0.119 R)
• M14: 10,472,150 km (0.088 R)
• M15: 12,200,155 km (0.118 R)
• M16: 12,579,984 km (0.106 R)
• M17: 13,230,735 km (0.045 R)
• M18: 13,699,425 km (0.08 R)
• M19: 18,018,016 km (0.079 R)
• M20: 22,215,433 km (0.098 R)
• M21: 23,261,571 km (0.118 R)
• M22: 24,340,172 km (0.112 R)
• M23: 26,386,072 km (0.12 R)
• M24: 28,103,157 km (0.112 R)
• M25: 29,438,916 km (0.036 R)
• M26: 30,468,150 km (0.094 R)
• M27: 35,847,240 km (0.091 R)
• M28: 36,105,745 km (0.068 R)
• M29: 53,155,863 km (0.06 R)
• M30: 55,366,770 km (0.104 R)
• M31: 55,885,576 km (0.046 R)
• M32: 58,171,282 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 448.9

Radius: 4

Gravity: 28.06 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 8.18 AU - 10.1 AU

Year: 17842 Days

Day: 25 Hours

Environment

Temp: -235 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 61,245,780 km

• M1: 50,115 km (0.087 R)
• M2: 217,665 km (0.102 R)
• M3: 361,129 km (0.114 R)
• M4: 539,300 km (0.09 R)
• M5: 813,962 km (0.104 R)
• M6: 1,064,389 km (0.036 R)
• M7: 1,999,076 km (0.091 R)
• M8: 2,329,837 km (0.059 R)
• M9: 2,476,294 km (0.074 R)
• M10: 2,673,464 km (0.091 R)
• M11: 2,881,105 km (0.072 R)
• M12: 4,205,944 km (0.066 R)
• M13: 4,714,427 km (0.109 R)
• M14: 5,191,944 km (0.107 R)
• M15: 7,118,016 km (0.118 R)
• M16: 7,472,114 km (0.09 R)
• M17: 7,653,427 km (0.058 R)
• M18: 9,057,702 km (0.116 R)
• M19: 11,805,516 km (0.095 R)
• M20: 12,427,394 km (0.075 R)
• M21: 12,618,132 km (0.112 R)
• M22: 13,334,257 km (0.068 R)
• M23: 14,563,951 km (0.087 R)
• M24: 17,483,952 km (0.055 R)
• M25: 17,723,458 km (0.075 R)
• M26: 18,127,522 km (0.064 R)
• M27: 22,891,017 km (0.087 R)
• M28: 24,249,516 km (0.118 R)
• M29: 25,558,198 km (0.097 R)
• M30: 25,866,818 km (0.075 R)
• M31: 26,596,407 km (0.115 R)
• M32: 26,807,490 km (0.112 R)
• M33: 32,092,334 km (0.053 R)
• M34: 34,662,724 km (0.059 R)
• M35: 39,656,750 km (0.116 R)
• M36: 47,857,855 km (0.104 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: 358 - 17,487 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit