🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.39 AU - 0.63 AU

Year: 133 Days

Day: 23.8 Hours

Environment

Temp: 224 °C

Axial Tilt: 4.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.82

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.55 AU - 0.55 AU

Year: 149 Days

Day: 26.5 Hours

Environment

Temp: 194 °C

Axial Tilt: 28.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 66,112,005 km

• M1: 274,512 km (0.085 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.56 AU - 0.7 AU

Year: 183 Days

Day: 26.6 Hours

Environment

Temp: 187 °C

Axial Tilt: 5.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.15 AU - 1.41 AU

Year: 529 Days

Day: 23.5 Hours

Environment

Temp: -0 °C

Axial Tilt: 28.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 66,112,005 km

• M1: 374,892 km (0.039 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.26 AU - 1.7 AU

Year: 658 Days

Day: 47.4 Hours

Environment

Temp: -25 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.33 AU - 2.47 AU

Year: 1358 Days

Day: 43.7 Hours

Environment

Temp: -79 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.04 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.5

Radius: 11.5

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 4.99 AU - 6.37 AU

Year: 4944 Days

Day: 13.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 66,112,005 km

• M1: 208,539 km (0.067 R)
• M2: 282,590 km (0.113 R)
• M3: 373,247 km (0.099 R)
• M4: 614,249 km (0.102 R)
• M5: 736,919 km (0.05 R)
• M6: 1,008,738 km (0.056 R)
• M7: 1,503,758 km (0.111 R)
• M8: 1,607,579 km (0.045 R)
• M9: 2,390,574 km (0.094 R)
• M10: 2,637,261 km (0.091 R)
• M11: 3,216,504 km (0.099 R)
• M12: 3,364,456 km (0.099 R)
• M13: 3,834,792 km (0.082 R)
• M14: 4,111,099 km (0.114 R)
• M15: 4,380,375 km (0.089 R)
• M16: 4,669,398 km (0.086 R)
• M17: 4,851,459 km (0.066 R)
• M18: 5,164,866 km (0.105 R)
• M19: 6,422,087 km (0.11 R)
• M20: 7,181,446 km (0.078 R)
• M21: 7,408,386 km (0.1 R)
• M22: 7,703,542 km (0.099 R)
• M23: 8,957,472 km (0.093 R)
• M24: 9,307,232 km (0.089 R)
• M25: 9,537,014 km (0.066 R)
• M26: 9,643,677 km (0.11 R)
• M27: 10,201,228 km (0.112 R)
• M28: 10,769,252 km (0.094 R)
• M29: 11,047,803 km (0.082 R)
• M30: 11,404,145 km (0.081 R)
• M31: 11,764,227 km (0.086 R)
• M32: 12,906,108 km (0.112 R)
• M33: 12,984,796 km (0.103 R)
• M34: 13,063,634 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 408.1

Radius: 7.7

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 14.26 AU - 15.52 AU

Year: 20986 Days

Day: 15.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 84.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 66,112,005 km

• M1: 106,663 km (0.03 R)
• M2: 171,888 km (0.098 R)
• M3: 325,974 km (0.028 R)
• M4: 705,055 km (0.082 R)
• M5: 924,216 km (0.119 R)
• M6: 1,478,925 km (0.106 R)
• M7: 1,561,652 km (0.075 R)
• M8: 1,703,022 km (0.088 R)
• M9: 1,760,767 km (0.078 R)
• M10: 2,152,115 km (0.077 R)
• M11: 2,278,076 km (0.084 R)
• M12: 2,374,118 km (0.074 R)
• M13: 2,570,241 km (0.075 R)
• M14: 2,737,791 km (0.07 R)
• M15: 3,225,928 km (0.118 R)
• M16: 3,333,938 km (0.092 R)
• M17: 4,007,877 km (0.066 R)
• M18: 5,649,713 km (0.071 R)
• M19: 6,133,812 km (0.093 R)
• M20: 6,539,671 km (0.095 R)
• M21: 7,047,705 km (0.078 R)
• M22: 7,472,862 km (0.102 R)
• M23: 7,664,348 km (0.1 R)
• M24: 7,906,247 km (0.103 R)
• M25: 8,003,636 km (0.046 R)
• M26: 8,646,607 km (0.085 R)
• M27: 8,999,808 km (0.049 R)
• M28: 9,203,710 km (0.105 R)
• M29: 10,245,958 km (0.036 R)
• M30: 11,490,164 km (0.062 R)
• M31: 11,711,419 km (0.083 R)
• M32: 12,214,367 km (0.113 R)
• M33: 12,838,788 km (0.118 R)
• M34: 13,010,826 km (0.094 R)
• M35: 13,473,383 km (0.099 R)
• M36: 17,363,526 km (0.117 R)
• M37: 17,936,635 km (0.092 R)
• M38: 18,580,654 km (0.107 R)
• M39: 18,775,281 km (0.12 R)
• M40: 18,840,356 km (0.065 R)
• M41: 19,626,792 km (0.107 R)
• M42: 19,957,702 km (0.119 R)
• M43: 20,023,974 km (0.111 R)
• M44: 20,223,687 km (0.069 R)
• M45: 20,893,736 km (0.09 R)
• M46: 21,435,131 km (0.08 R)
• M47: 22,118,344 km (0.078 R)
• M48: 22,255,825 km (0.115 R)
• M49: 22,947,565 km (0.074 R)
• M50: 23,226,266 km (0.105 R)
• M51: 23,365,991 km (0.027 R)
• M52: 23,998,490 km (0.071 R)
• M53: 24,210,471 km (0.11 R)
• M54: 24,993,316 km (0.115 R)
• M55: 26,219,420 km (0.118 R)
• M56: 28,580,075 km (0.044 R)
• M57: 28,804,771 km (0.113 R)
• M58: 29,633,992 km (0.118 R)
• M59: 31,779,824 km (0.118 R)
• M60: 32,246,120 km (0.098 R)
• M61: 32,714,810 km (0.111 R)
• M62: 35,815,077 km (0.093 R)
• M63: 36,057,425 km (0.102 R)
• M64: 36,219,290 km (0.104 R)
• M65: 36,462,536 km (0.09 R)
• M66: 36,869,143 km (0.102 R)
• M67: 36,950,674 km (0.072 R)
• M68: 38,180,518 km (0.059 R)
• M69: 38,345,525 km (0.118 R)
• M70: 39,257,174 km (0.086 R)
• M71: 39,841,055 km (0.083 R)
• M72: 42,888,812 km (0.101 R)
• M73: 43,404,027 km (0.115 R)
• M74: 47,067,679 km (0.109 R)
• M75: 47,156,091 km (0.101 R)
• M76: 47,421,777 km (0.097 R)
• M77: 48,489,158 km (0.107 R)
• M78: 48,667,927 km (0.033 R)
• M79: 48,846,846 km (0.092 R)
• M80: 49,025,915 km (0.066 R)
• M81: 49,654,525 km (0.118 R)
• M82: 52,837,669 km (0.105 R)
• M83: 54,685,950 km (0.096 R)
• M84: 56,273,633 km (0.105 R)
• M85: 58,445,644 km (0.073 R)
• M86: 58,635,783 km (0.105 R)
• M87: 59,876,997 km (0.111 R)
• M88: 60,837,564 km (0.107 R)
• M89: 63,358,887 km (0.115 R)
• M90: 63,651,949 km (0.036 R)
• M91: 64,043,447 km (0.083 R)
• M92: 64,927,271 km (0.104 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 383 - 18,741 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit