🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.6

Radius: 10.7

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.67 AU - 0.73 AU

Year: 384 Days

Day: 5.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,193,182 km

• M1: 133,142 km (0.106 R)
• M2: 550,670 km (0.073 R)
• M3: 911,350 km (0.087 R)
• M4: 1,343,389 km (0.098 R)
• M5: 1,714,840 km (0.094 R)
• M6: 2,084,796 km (0.099 R)
• M7: 2,508,158 km (0.096 R)
• M8: 3,257,045 km (0.117 R)
• M9: 3,632,386 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.9

Radius: 9.7

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.94 AU - 1.14 AU

Year: 696 Days

Day: 6.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,193,182 km

• M1: 120,725 km (0.04 R)
• M2: 464,053 km (0.047 R)
• M3: 908,657 km (0.047 R)
• M4: 1,251,685 km (0.093 R)
• M5: 2,022,862 km (0.104 R)
• M6: 3,470,222 km (0.103 R)
• M7: 3,835,839 km (0.119 R)
• M8: 4,477,614 km (0.094 R)
• M9: 4,800,745 km (0.111 R)
• M10: 5,272,727 km (0.081 R)
• M11: 6,253,191 km (0.106 R)
• M12: 6,697,497 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.2

Radius: 10.6

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.06 AU - 1.38 AU

Year: 884 Days

Day: 14.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,193,182 km

• M1: 131,945 km (0.085 R)
• M2: 516,861 km (0.051 R)
• M3: 911,949 km (0.09 R)
• M4: 1,537,417 km (0.108 R)
• M5: 1,867,281 km (0.115 R)
• M6: 2,475,546 km (0.052 R)
• M7: 2,896,065 km (0.076 R)
• M8: 3,280,233 km (0.111 R)
• M9: 4,267,429 km (0.119 R)
• M10: 4,857,443 km (0.044 R)
• M11: 5,660,484 km (0.101 R)
• M12: 6,865,944 km (0.076 R)
• M13: 7,239,939 km (0.042 R)
• M14: 8,054,649 km (0.094 R)
• M15: 8,391,992 km (0.093 R)
• M16: 8,738,610 km (0.103 R)
• M17: 9,290,776 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.3

Radius: 13.3

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.93 AU - 2.71 AU

Year: 2318 Days

Day: 13.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,193,182 km

• M1: 172,187 km (0.066 R)
• M2: 996,471 km (0.055 R)
• M3: 2,628,883 km (0.101 R)
• M4: 3,068,701 km (0.086 R)
• M5: 4,432,585 km (0.104 R)
• M6: 4,949,146 km (0.117 R)
• M7: 7,504,727 km (0.119 R)
• M8: 8,163,107 km (0.052 R)
• M9: 8,887,310 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181

Radius: 11.6

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.88 AU - 3.16 AU

Year: 3443 Days

Day: 12 Hours

Environment

Temp: -203 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,193,182 km

• M1: 144,212 km (0.075 R)
• M2: 581,487 km (0.054 R)
• M3: 1,116,449 km (0.063 R)
• M4: 1,639,293 km (0.089 R)
• M5: 2,188,318 km (0.056 R)
• M6: 4,292,113 km (0.079 R)
• M7: 6,739,534 km (0.086 R)
• M8: 7,110,237 km (0.059 R)
• M9: 7,635,176 km (0.115 R)
• M10: 10,908,976 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.3

Radius: 10.7

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.79 AU - 4.55 AU

Year: 5586 Days

Day: 13.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 29,193,182 km

• M1: 133,890 km (0.082 R)
• M2: 504,594 km (0.107 R)
• M3: 1,765,853 km (0.072 R)
• M4: 2,270,596 km (0.116 R)
• M5: 3,752,513 km (0.106 R)
• M6: 4,333,102 km (0.045 R)
• M7: 4,672,091 km (0.085 R)
• M8: 6,081,153 km (0.102 R)
• M9: 6,473,997 km (0.089 R)
• M10: 6,848,890 km (0.051 R)
• M11: 7,907,444 km (0.108 R)
• M12: 8,821,936 km (0.118 R)
• M13: 9,283,595 km (0.07 R)
• M14: 9,983,863 km (0.059 R)
• M15: 11,003,671 km (0.062 R)
• M16: 11,688,082 km (0.027 R)
• M17: 13,034,014 km (0.026 R)
• M18: 16,217,157 km (0.085 R)
• M19: 17,822,342 km (0.105 R)
• M20: 18,155,646 km (0.112 R)
• M21: 18,834,821 km (0.107 R)
• M22: 21,271,321 km (0.089 R)
• M23: 21,646,662 km (0.12 R)
• M24: 22,487,702 km (0.087 R)
• M25: 23,350,432 km (0.098 R)
• M26: 23,910,826 km (0.117 R)
• M27: 24,398,216 km (0.117 R)
• M28: 24,975,365 km (0.031 R)
• M29: 26,500,964 km (0.101 R)
• M30: 26,935,695 km (0.095 R)
• M31: 34,347,222 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.4

Radius: 9

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.54 AU - 5.22 AU

Year: 6013 Days

Day: 11.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 29,193,182 km

• M1: 112,797 km (0.108 R)
• M2: 486,492 km (0.108 R)
• M3: 880,383 km (0.105 R)
• M4: 2,293,036 km (0.081 R)
• M5: 2,696,801 km (0.06 R)
• M6: 3,088,598 km (0.118 R)
• M7: 3,539,486 km (0.056 R)
• M8: 4,224,644 km (0.049 R)
• M9: 5,385,972 km (0.075 R)
• M10: 5,796,768 km (0.044 R)
• M11: 7,190,870 km (0.063 R)
• M12: 7,473,012 km (0.077 R)
• M13: 9,918,189 km (0.102 R)
• M14: 10,446,569 km (0.083 R)
• M15: 10,993,499 km (0.116 R)
• M16: 12,545,876 km (0.109 R)
• M17: 13,533,820 km (0.093 R)
• M18: 14,405,377 km (0.086 R)
• M19: 17,181,914 km (0.118 R)
• M20: 18,928,619 km (0.104 R)
• M21: 19,604,651 km (0.117 R)
• M22: 20,296,691 km (0.071 R)
• M23: 20,648,695 km (0.08 R)
• M24: 21,949,897 km (0.091 R)
• M25: 22,320,900 km (0.083 R)
• M26: 22,847,335 km (0.112 R)
• M27: 25,197,517 km (0.109 R)
• M28: 25,686,104 km (0.068 R)
• M29: 26,935,396 km (0.039 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49

Radius: 7.8

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 7.98 AU - 10.06 AU

Year: 17771 Days

Day: 18.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 67.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,193,182 km

• M1: 97,089 km (0.102 R)
• M2: 411,095 km (0.074 R)
• M3: 914,492 km (0.097 R)
• M4: 2,730,760 km (0.064 R)
• M5: 5,372,808 km (0.055 R)
• M6: 5,982,120 km (0.058 R)
• M7: 10,554,878 km (0.038 R)
• M8: 10,911,968 km (0.065 R)
• M9: 14,938,395 km (0.108 R)
• M10: 18,155,497 km (0.049 R)
• M11: 22,023,051 km (0.096 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 16,307 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit