🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.46 AU - 0.66 AU

Year: 266 Days

Day: 26.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 11.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.2

Radius: 12.9

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.78 AU - 1.06 AU

Year: 561 Days

Day: 8.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 97,741,369 km

• M1: 160,519 km (0.052 R)
• M2: 566,976 km (0.077 R)
• M3: 980,614 km (0.096 R)
• M4: 1,395,599 km (0.081 R)
• M5: 1,923,081 km (0.113 R)
• M6: 2,494,993 km (0.075 R)
• M7: 3,659,613 km (0.091 R)
• M8: 4,175,127 km (0.093 R)
• M9: 5,206,903 km (0.102 R)
• M10: 5,791,831 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.7

Radius: 12

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.15 AU - 1.87 AU

Year: 1180 Days

Day: 8.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 97,741,369 km

• M1: 149,299 km (0.081 R)
• M2: 536,009 km (0.108 R)
• M3: 1,403,378 km (0.109 R)
• M4: 1,897,499 km (0.062 R)
• M5: 2,273,140 km (0.084 R)
• M6: 2,780,875 km (0.118 R)
• M7: 3,728,428 km (0.118 R)
• M8: 4,741,205 km (0.053 R)
• M9: 6,029,542 km (0.087 R)
• M10: 6,635,862 km (0.038 R)
• M11: 8,268,274 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.5

Radius: 11

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.83 AU - 3.83 AU

Year: 4766 Days

Day: 10.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 97,741,369 km

• M1: 136,732 km (0.1 R)
• M2: 480,957 km (0.11 R)
• M3: 1,318,406 km (0.066 R)
• M4: 1,776,026 km (0.083 R)
• M5: 2,496,938 km (0.093 R)
• M6: 3,443,743 km (0.118 R)
• M7: 3,910,488 km (0.109 R)
• M8: 4,371,100 km (0.112 R)
• M9: 6,779,626 km (0.108 R)
• M10: 7,725,683 km (0.072 R)
• M11: 8,341,727 km (0.111 R)
• M12: 9,754,380 km (0.101 R)
• M13: 11,504,375 km (0.095 R)
• M14: 14,562,455 km (0.115 R)
• M15: 15,166,531 km (0.097 R)
• M16: 16,366,157 km (0.099 R)
• M17: 16,720,255 km (0.101 R)
• M18: 18,504,359 km (0.047 R)
• M19: 19,541,371 km (0.086 R)
• M20: 20,007,070 km (0.084 R)
• M21: 23,032,088 km (0.112 R)
• M22: 23,701,688 km (0.065 R)
• M23: 24,461,047 km (0.107 R)
• M24: 25,709,441 km (0.083 R)
• M25: 26,349,421 km (0.026 R)
• M26: 27,000,022 km (0.116 R)
• M27: 27,744,571 km (0.116 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 675

Radius: 7.9

Gravity: 10.82 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 8.16 AU - 8.76 AU

Year: 15645 Days

Day: 16.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 97,741,369 km

• M1: 98,286 km (0.103 R)
• M2: 436,377 km (0.055 R)
• M3: 791,074 km (0.054 R)
• M4: 1,089,222 km (0.054 R)
• M5: 2,711,013 km (0.096 R)
• M6: 3,018,586 km (0.107 R)
• M7: 3,876,380 km (0.072 R)
• M8: 6,977,095 km (0.107 R)
• M9: 7,742,438 km (0.074 R)
• M10: 8,814,307 km (0.082 R)
• M11: 10,431,310 km (0.081 R)
• M12: 11,860,119 km (0.039 R)
• M13: 16,300,782 km (0.098 R)
• M14: 20,280,086 km (0.08 R)
• M15: 20,728,431 km (0.045 R)
• M16: 27,941,591 km (0.101 R)
• M17: 30,207,251 km (0.086 R)
• M18: 33,580,982 km (0.073 R)
• M19: 37,197,660 km (0.027 R)
• M20: 40,781,128 km (0.107 R)
• M21: 41,783,882 km (0.062 R)
• M22: 45,805,671 km (0.12 R)
• M23: 48,946,030 km (0.107 R)
• M24: 49,915,424 km (0.102 R)
• M25: 52,900,350 km (0.101 R)
• M26: 53,409,133 km (0.104 R)
• M27: 61,251,352 km (0.097 R)
• M28: 62,754,960 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 946

Radius: 4.9

Gravity: 39.4 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 8.56 AU - 9.56 AU

Year: 17339 Days

Day: 21.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 97,741,369 km

• M1: 60,886 km (0.103 R)
• M2: 400,473 km (0.082 R)
• M3: 580,589 km (0.096 R)
• M4: 1,206,956 km (0.118 R)
• M5: 1,679,386 km (0.109 R)
• M6: 2,077,615 km (0.103 R)
• M7: 2,354,222 km (0.045 R)
• M8: 3,534,100 km (0.064 R)
• M9: 5,174,740 km (0.071 R)
• M10: 5,928,713 km (0.105 R)
• M11: 6,181,384 km (0.05 R)
• M12: 8,207,238 km (0.112 R)
• M13: 9,173,042 km (0.075 R)
• M14: 10,514,486 km (0.053 R)
• M15: 11,010,254 km (0.1 R)
• M16: 15,551,447 km (0.047 R)
• M17: 16,194,568 km (0.1 R)
• M18: 17,792,872 km (0.054 R)
• M19: 18,318,558 km (0.115 R)
• M20: 21,693,038 km (0.091 R)
• M21: 22,495,331 km (0.042 R)
• M22: 23,213,401 km (0.119 R)
• M23: 23,630,629 km (0.108 R)
• M24: 25,569,866 km (0.105 R)
• M25: 26,126,819 km (0.096 R)
• M26: 26,351,815 km (0.089 R)
• M27: 29,517,605 km (0.116 R)
• M28: 32,277,386 km (0.105 R)
• M29: 39,179,383 km (0.115 R)
• M30: 45,849,952 km (0.119 R)
• M31: 46,177,422 km (0.06 R)
• M32: 52,878,659 km (0.063 R)
• M33: 54,328,860 km (0.111 R)
• M34: 60,395,503 km (0.102 R)
• M35: 64,202,918 km (0.113 R)
• M36: 64,818,364 km (0.05 R)
• M37: 70,753,360 km (0.086 R)
• M38: 70,971,773 km (0.081 R)
• M39: 75,434,876 km (0.04 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 877.9

Radius: 5.1

Gravity: 33.75 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 7.89 AU - 11.17 AU

Year: 18706 Days

Day: 20.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 97,741,369 km

• M1: 63,579 km (0.072 R)
• M2: 257,757 km (0.114 R)
• M3: 539,600 km (0.045 R)
• M4: 704,756 km (0.077 R)
• M5: 1,037,012 km (0.107 R)
• M6: 1,723,966 km (0.107 R)
• M7: 2,850,438 km (0.08 R)
• M8: 3,167,735 km (0.102 R)
• M9: 4,397,280 km (0.09 R)
• M10: 5,506,847 km (0.072 R)
• M11: 7,212,562 km (0.097 R)
• M12: 7,503,081 km (0.09 R)
• M13: 7,953,371 km (0.081 R)
• M14: 11,297,332 km (0.112 R)
• M15: 11,623,156 km (0.04 R)
• M16: 12,022,582 km (0.095 R)
• M17: 14,613,169 km (0.097 R)
• M18: 15,553,242 km (0.115 R)
• M19: 15,875,326 km (0.083 R)
• M20: 19,624,697 km (0.086 R)
• M21: 20,670,686 km (0.095 R)
• M22: 20,962,252 km (0.045 R)
• M23: 22,055,064 km (0.077 R)
• M24: 32,068,099 km (0.113 R)
• M25: 32,852,889 km (0.075 R)
• M26: 47,547,290 km (0.057 R)
• M27: 47,885,530 km (0.106 R)
• M28: 50,474,621 km (0.093 R)
• M29: 51,003,449 km (0.109 R)
• M30: 52,431,660 km (0.106 R)
• M31: 53,155,564 km (0.072 R)
• M32: 56,118,200 km (0.082 R)
• M33: 57,639,910 km (0.074 R)
• M34: 59,188,996 km (0.114 R)
• M35: 61,966,280 km (0.11 R)
• M36: 64,002,457 km (0.108 R)
• M37: 65,245,316 km (0.087 R)
• M38: 67,993,130 km (0.105 R)
• M39: 69,939,997 km (0.095 R)
• M40: 73,492,348 km (0.028 R)
• M41: 75,772,668 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 962.1

Radius: 7.7

Gravity: 16.23 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 10.41 AU - 12.45 AU

Year: 24570 Days

Day: 18.7 Hours

Environment

Temp: -240 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 97,741,369 km

• M1: 97,687 km (0.095 R)
• M2: 363,672 km (0.096 R)
• M3: 1,013,077 km (0.079 R)
• M4: 1,496,876 km (0.037 R)
• M5: 2,017,776 km (0.115 R)
• M6: 2,262,369 km (0.083 R)
• M7: 2,812,141 km (0.051 R)
• M8: 3,866,357 km (0.036 R)
• M9: 6,974,402 km (0.098 R)
• M10: 9,293,618 km (0.057 R)
• M11: 10,169,065 km (0.098 R)
• M12: 11,795,942 km (0.038 R)
• M13: 12,155,575 km (0.055 R)
• M14: 14,468,956 km (0.03 R)
• M15: 17,060,889 km (0.1 R)
• M16: 21,081,930 km (0.075 R)
• M17: 22,588,082 km (0.103 R)
• M18: 25,933,688 km (0.118 R)
• M19: 27,035,626 km (0.086 R)
• M20: 28,424,493 km (0.085 R)
• M21: 28,681,951 km (0.102 R)
• M22: 37,460,504 km (0.074 R)
• M23: 37,770,171 km (0.083 R)
• M24: 49,716,309 km (0.058 R)
• M25: 51,033,518 km (0.08 R)
• M26: 53,150,328 km (0.115 R)
• M27: 54,925,307 km (0.099 R)
• M28: 68,239,069 km (0.112 R)
• M29: 75,389,847 km (0.114 R)
• M30: 75,883,520 km (0.094 R)
• M31: 79,911,293 km (0.114 R)
• M32: 85,410,960 km (0.119 R)
• M33: 88,938,926 km (0.044 R)
• M34: 91,999,100 km (0.078 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 373 - 12,624 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit