🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.56 AU - 0.7 AU

Year: 188 Days

Day: 39.6 Hours

Environment

Temp: 170 °C

Axial Tilt: 39.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.7 AU - 0.78 AU

Year: 240 Days

Day: 37.1 Hours

Environment

Temp: 83 °C

Axial Tilt: 10.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.88 AU - 1.1 AU

Year: 371 Days

Day: 36.7 Hours

Environment

Temp: 14 °C

Axial Tilt: 33.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 105,310,400 km

• M1: 427,401 km (0.081 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.46 AU - 2.34 AU

Year: 987 Days

Day: 42.8 Hours

Environment

Temp: -75 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 105,310,400 km

• M1: 86,168 km (0.081 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 3.01 AU - 4.31 AU

Year: 2638 Days

Day: 27.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 105,310,400 km

• M1: 668,852 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.6

Radius: 11.5

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 5.98 AU - 6.78 AU

Year: 6071 Days

Day: 11.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 105,310,400 km

• M1: 166,353 km (0.071 R)
• M2: 1,633,609 km (0.047 R)
• M3: 2,201,781 km (0.077 R)
• M4: 4,426,601 km (0.113 R)
• M5: 6,145,032 km (0.075 R)
• M6: 6,704,677 km (0.117 R)
• M7: 7,824,567 km (0.102 R)
• M8: 11,446,631 km (0.087 R)
• M9: 15,145,887 km (0.084 R)
• M10: 17,876,048 km (0.066 R)
• M11: 22,391,061 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.8

Radius: 6.7

Gravity: 20.04 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 14.43 AU - 18.85 AU

Year: 25572 Days

Day: 23.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 105,310,400 km

• M1: 86,318 km (0.047 R)
• M2: 388,506 km (0.113 R)
• M3: 645,814 km (0.032 R)
• M4: 1,473,389 km (0.026 R)
• M5: 4,041,237 km (0.094 R)
• M6: 4,892,000 km (0.09 R)
• M7: 6,793,838 km (0.105 R)
• M8: 7,990,770 km (0.103 R)
• M9: 8,438,367 km (0.064 R)
• M10: 9,506,197 km (0.062 R)
• M11: 9,881,388 km (0.11 R)
• M12: 10,137,051 km (0.082 R)
• M13: 10,594,970 km (0.114 R)
• M14: 11,693,318 km (0.048 R)
• M15: 13,324,832 km (0.1 R)
• M16: 14,520,717 km (0.065 R)
• M17: 15,699,848 km (0.076 R)
• M18: 16,401,611 km (0.104 R)
• M19: 16,941,510 km (0.096 R)
• M20: 18,535,625 km (0.119 R)
• M21: 22,897,899 km (0.094 R)
• M22: 23,458,891 km (0.082 R)
• M23: 25,674,435 km (0.098 R)
• M24: 26,158,085 km (0.089 R)
• M25: 28,538,487 km (0.092 R)
• M26: 31,333,274 km (0.084 R)
• M27: 35,485,213 km (0.095 R)
• M28: 39,028,140 km (0.107 R)
• M29: 47,892,562 km (0.111 R)
• M30: 58,216,610 km (0.106 R)
• M31: 58,632,941 km (0.082 R)
• M32: 61,386,888 km (0.058 R)
• M33: 61,602,159 km (0.092 R)
• M34: 61,818,029 km (0.078 R)
• M35: 63,123,869 km (0.101 R)
• M36: 71,109,104 km (0.091 R)
• M37: 72,542,401 km (0.082 R)
• M38: 74,238,691 km (0.07 R)
• M39: 82,330,739 km (0.04 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 740.4

Radius: 4.2

Gravity: 41.97 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 17.51 AU - 20.59 AU

Year: 31323 Days

Day: 17.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 105,310,400 km

• M1: 52,359 km (0.085 R)
• M2: 353,649 km (0.088 R)
• M3: 569,369 km (0.097 R)
• M4: 762,800 km (0.106 R)
• M5: 1,299,856 km (0.03 R)
• M6: 1,453,493 km (0.096 R)
• M7: 1,696,889 km (0.069 R)
• M8: 2,101,102 km (0.113 R)
• M9: 2,865,846 km (0.057 R)
• M10: 3,187,931 km (0.097 R)
• M11: 3,904,056 km (0.063 R)
• M12: 4,044,977 km (0.053 R)
• M13: 5,045,487 km (0.073 R)
• M14: 5,737,228 km (0.118 R)
• M15: 6,490,154 km (0.078 R)
• M16: 10,499,377 km (0.12 R)
• M17: 10,635,361 km (0.093 R)
• M18: 13,527,836 km (0.097 R)
• M19: 15,722,736 km (0.094 R)
• M20: 18,537,271 km (0.097 R)
• M21: 18,835,868 km (0.064 R)
• M22: 19,442,936 km (0.087 R)
• M23: 21,890,656 km (0.08 R)
• M24: 23,130,673 km (0.12 R)
• M25: 28,825,565 km (0.067 R)
• M26: 31,709,961 km (0.088 R)
• M27: 32,423,992 km (0.101 R)
• M28: 34,330,617 km (0.09 R)
• M29: 34,932,000 km (0.093 R)
• M30: 36,622,008 km (0.057 R)
• M31: 40,999,391 km (0.118 R)
• M32: 41,846,564 km (0.108 R)
• M33: 43,575,765 km (0.116 R)
• M34: 43,751,244 km (0.102 R)
• M35: 44,103,696 km (0.076 R)
• M36: 45,352,090 km (0.085 R)
• M37: 46,807,379 km (0.045 R)
• M38: 47,361,040 km (0.106 R)
• M39: 59,371,505 km (0.116 R)
• M40: 61,994,554 km (0.107 R)
• M41: 77,298,117 km (0.113 R)
• M42: 79,633,490 km (0.113 R)
• M43: 95,525,571 km (0.113 R)
• M44: 98,817,472 km (0.11 R)
• M45: 99,120,408 km (0.087 R)
• M46: 100,644,511 km (0.079 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 19,670 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit