🌌 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: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.6 AU - 0.66 AU

Year: 184 Days

Day: 33.5 Hours

Environment

Temp: 138 °C

Axial Tilt: 32.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 66,576,974 km

• M1: 157,975 km (0.104 R)
• M2: 299,944 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.55 AU - 0.91 AU

Year: 229 Days

Day: 36.5 Hours

Environment

Temp: 166 °C

Axial Tilt: 34.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 66,576,974 km

• M1: 594,951 km (0.104 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.4 AU - 1.72 AU

Year: 715 Days

Day: 24.2 Hours

Environment

Temp: -37 °C

Axial Tilt: 49.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.6 AU - 1.66 AU

Year: 764 Days

Day: 40.9 Hours

Environment

Temp: -42 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.8 AU - 1.8 AU

Year: 887 Days

Day: 17.5 Hours

Environment

Temp: -62 °C

Axial Tilt: 8.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,576,974 km

• M1: 145,409 km (0.09 R)
• M2: 577,149 km (0.051 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.82 AU - 2.74 AU

Year: 1264 Days

Day: 44.2 Hours

Environment

Temp: -72 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.35 AU - 2.87 AU

Year: 1548 Days

Day: 45.7 Hours

Environment

Temp: -100 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.76 AU - 3.06 AU

Year: 1822 Days

Day: 28.7 Hours

Environment

Temp: -96 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,576,974 km

• M1: 498,311 km (0.098 R)

Asteroid Belt

Center: 4.18 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.3

Radius: 13.2

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 4.12 AU - 6.76 AU

Year: 4658 Days

Day: 12.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 66,576,974 km

• M1: 165,006 km (0.071 R)
• M2: 327,919 km (0.12 R)
• M3: 504,444 km (0.091 R)
• M4: 588,219 km (0.12 R)
• M5: 816,954 km (0.105 R)
• M6: 931,396 km (0.095 R)
• M7: 1,114,055 km (0.11 R)
• M8: 1,404,574 km (0.116 R)
• M9: 1,631,514 km (0.074 R)
• M10: 1,809,835 km (0.119 R)
• M11: 2,121,896 km (0.113 R)
• M12: 2,251,598 km (0.117 R)
• M13: 2,350,781 km (0.079 R)
• M14: 2,468,365 km (0.101 R)
• M15: 3,013,051 km (0.083 R)
• M16: 3,252,707 km (0.073 R)
• M17: 3,365,503 km (0.118 R)
• M18: 4,029,269 km (0.068 R)
• M19: 4,171,088 km (0.051 R)
• M20: 4,314,552 km (0.12 R)
• M21: 4,418,074 km (0.107 R)
• M22: 4,501,400 km (0.05 R)
• M23: 4,776,211 km (0.082 R)
• M24: 4,926,407 km (0.077 R)
• M25: 5,078,399 km (0.068 R)
• M26: 5,364,580 km (0.079 R)
• M27: 5,861,095 km (0.08 R)
• M28: 6,561,961 km (0.104 R)
• M29: 6,657,554 km (0.104 R)
• M30: 6,777,532 km (0.108 R)
• M31: 7,166,486 km (0.09 R)
• M32: 8,119,424 km (0.075 R)
• M33: 8,506,584 km (0.073 R)
• M34: 9,325,931 km (0.115 R)
• M35: 9,731,491 km (0.064 R)
• M36: 9,977,580 km (0.099 R)
• M37: 10,170,561 km (0.054 R)
• M38: 10,448,214 km (0.097 R)
• M39: 11,296,285 km (0.075 R)
• M40: 11,641,706 km (0.098 R)
• M41: 12,049,211 km (0.1 R)
• M42: 12,166,496 km (0.1 R)
• M43: 12,908,202 km (0.061 R)
• M44: 13,786,940 km (0.047 R)
• M45: 13,971,095 km (0.082 R)
• M46: 14,063,546 km (0.107 R)
• M47: 14,310,981 km (0.079 R)
• M48: 14,466,413 km (0.116 R)
• M49: 14,967,566 km (0.063 R)
• M50: 15,537,983 km (0.104 R)
• M51: 15,697,753 km (0.035 R)
• M52: 16,115,730 km (0.105 R)
• M53: 16,439,759 km (0.043 R)
• M54: 17,391,500 km (0.062 R)
• M55: 17,657,186 km (0.099 R)
• M56: 18,327,385 km (0.094 R)
• M57: 18,937,744 km (0.108 R)
• M58: 19,313,983 km (0.08 R)
• M59: 19,485,871 km (0.097 R)
• M60: 20,597,682 km (0.074 R)
• M61: 21,694,384 km (0.041 R)
• M62: 22,052,222 km (0.115 R)
• M63: 23,356,566 km (0.036 R)
• M64: 23,723,380 km (0.074 R)
• M65: 24,314,142 km (0.102 R)
• M66: 24,499,793 km (0.118 R)
• M67: 24,611,393 km (0.109 R)
• M68: 24,760,542 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 249

Radius: 5.7

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 17.13 AU - 18.11 AU

Year: 27151 Days

Day: 23 Hours

Environment

Temp: -196 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 66,576,974 km

• M1: 87,664 km (0.105 R)
• M2: 127,607 km (0.072 R)
• M3: 302,936 km (0.048 R)
• M4: 506,389 km (0.051 R)
• M5: 563,535 km (0.088 R)
• M6: 643,271 km (0.049 R)
• M7: 952,190 km (0.102 R)
• M8: 1,329,027 km (0.07 R)
• M9: 2,205,671 km (0.107 R)
• M10: 2,939,748 km (0.053 R)
• M11: 3,296,688 km (0.104 R)
• M12: 3,517,495 km (0.083 R)
• M13: 4,129,350 km (0.112 R)
• M14: 4,609,709 km (0.113 R)
• M15: 4,650,399 km (0.111 R)
• M16: 4,897,984 km (0.087 R)
• M17: 6,243,766 km (0.098 R)
• M18: 6,471,005 km (0.096 R)
• M19: 7,454,611 km (0.089 R)
• M20: 8,334,247 km (0.117 R)
• M21: 8,634,789 km (0.112 R)
• M22: 9,194,884 km (0.111 R)
• M23: 10,242,966 km (0.048 R)
• M24: 10,510,896 km (0.04 R)
• M25: 10,618,756 km (0.039 R)
• M26: 10,998,884 km (0.034 R)
• M27: 11,053,637 km (0.113 R)
• M28: 11,218,195 km (0.079 R)
• M29: 11,439,001 km (0.113 R)
• M30: 11,549,853 km (0.077 R)
• M31: 12,621,273 km (0.096 R)
• M32: 12,908,351 km (0.1 R)
• M33: 13,139,779 km (0.095 R)
• M34: 15,160,398 km (0.072 R)
• M35: 15,343,356 km (0.051 R)
• M36: 15,896,419 km (0.105 R)
• M37: 17,022,143 km (0.084 R)
• M38: 17,403,019 km (0.118 R)
• M39: 17,786,738 km (0.087 R)
• M40: 17,850,916 km (0.077 R)
• M41: 18,044,046 km (0.103 R)
• M42: 19,151,669 km (0.11 R)
• M43: 20,213,963 km (0.075 R)
• M44: 20,617,279 km (0.116 R)
• M45: 20,819,984 km (0.1 R)
• M46: 21,363,623 km (0.085 R)
• M47: 22,118,644 km (0.055 R)
• M48: 23,373,022 km (0.092 R)
• M49: 23,725,624 km (0.12 R)
• M50: 24,721,946 km (0.093 R)
• M51: 25,586,921 km (0.05 R)
• M52: 26,534,922 km (0.075 R)
• M53: 26,755,430 km (0.115 R)
• M54: 29,220,054 km (0.052 R)
• M55: 31,057,416 km (0.109 R)
• M56: 31,678,247 km (0.045 R)
• M57: 31,756,038 km (0.105 R)
• M58: 32,068,248 km (0.057 R)
• M59: 32,224,728 km (0.09 R)
• M60: 32,695,662 km (0.065 R)
• M61: 33,010,865 km (0.082 R)
• M62: 33,803,284 km (0.116 R)
• M63: 33,962,457 km (0.089 R)
• M64: 35,326,041 km (0.099 R)
• M65: 37,117,176 km (0.117 R)
• M66: 37,528,271 km (0.07 R)
• M67: 38,355,099 km (0.119 R)
• M68: 38,687,655 km (0.107 R)
• M69: 38,854,157 km (0.105 R)
• M70: 40,026,855 km (0.119 R)
• M71: 41,551,557 km (0.034 R)
• M72: 42,149,649 km (0.092 R)
• M73: 42,321,088 km (0.102 R)
• M74: 43,787,297 km (0.038 R)
• M75: 45,445,589 km (0.101 R)
• M76: 45,973,520 km (0.033 R)
• M77: 46,150,046 km (0.091 R)
• M78: 48,105,589 km (0.086 R)
• M79: 49,183,591 km (0.032 R)
• M80: 50,178,866 km (0.04 R)
• M81: 52,465,320 km (0.109 R)
• M82: 58,280,338 km (0.115 R)
• M83: 60,875,712 km (0.071 R)
• M84: 61,069,441 km (0.115 R)
• M85: 62,724,592 km (0.06 R)
• M86: 63,018,103 km (0.117 R)
• M87: 63,410,349 km (0.086 R)
• M88: 63,606,771 km (0.104 R)
• M89: 64,197,233 km (0.101 R)
• M90: 64,789,342 km (0.117 R)
• M91: 65,482,578 km (0.106 R)
• M92: 66,277,990 km (0.088 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 285 - 20,123 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit