🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.3

Radius: 10.7

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.54 AU - 0.78 AU

Year: 358 Days

Day: 5.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,206,813 km

• M1: 133,142 km (0.105 R)
• M2: 489,933 km (0.09 R)
• M3: 1,064,538 km (0.103 R)
• M4: 1,818,661 km (0.074 R)
• M5: 2,430,517 km (0.046 R)
• M6: 2,838,919 km (0.099 R)
• M7: 3,271,406 km (0.05 R)
• M8: 3,688,635 km (0.107 R)
• M9: 4,027,773 km (0.107 R)
• M10: 4,414,484 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.7

Radius: 9.7

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.7 AU - 1.02 AU

Year: 532 Days

Day: 8.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,206,813 km

• M1: 122,521 km (0.066 R)
• M2: 453,282 km (0.083 R)
• M3: 814,112 km (0.093 R)
• M4: 1,164,619 km (0.07 R)
• M5: 1,676,095 km (0.059 R)
• M6: 2,042,011 km (0.056 R)
• M7: 2,839,368 km (0.054 R)
• M8: 3,927,692 km (0.034 R)
• M9: 4,566,625 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.4

Radius: 10.9

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.93 AU - 1.15 AU

Year: 707 Days

Day: 5.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 54,206,813 km

• M1: 143,016 km (0.083 R)
• M2: 572,212 km (0.052 R)
• M3: 1,012,030 km (0.117 R)
• M4: 2,048,294 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.3

Radius: 8.5

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.86 AU - 2.22 AU

Year: 1943 Days

Day: 9.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,206,813 km

• M1: 105,766 km (0.066 R)
• M2: 406,457 km (0.101 R)
• M3: 672,442 km (0.06 R)
• M4: 1,021,005 km (0.115 R)
• M5: 1,597,256 km (0.079 R)
• M6: 2,007,454 km (0.103 R)
• M7: 2,315,027 km (0.099 R)
• M8: 2,667,180 km (0.059 R)
• M9: 3,054,938 km (0.06 R)
• M10: 4,337,141 km (0.063 R)
• M11: 5,286,041 km (0.089 R)
• M12: 6,758,233 km (0.037 R)
• M13: 7,296,038 km (0.063 R)
• M14: 7,779,388 km (0.1 R)
• M15: 8,283,982 km (0.045 R)
• M16: 8,750,578 km (0.115 R)
• M17: 9,173,192 km (0.094 R)
• M18: 9,929,409 km (0.069 R)
• M19: 10,422,633 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.8

Radius: 9.6

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.56 AU - 3.84 AU

Year: 3817 Days

Day: 11.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,206,813 km

• M1: 119,379 km (0.075 R)
• M2: 479,611 km (0.098 R)
• M3: 865,124 km (0.089 R)
• M4: 1,210,845 km (0.071 R)
• M5: 1,694,495 km (0.119 R)
• M6: 2,477,042 km (0.094 R)
• M7: 3,069,300 km (0.096 R)
• M8: 3,635,827 km (0.069 R)
• M9: 4,079,085 km (0.061 R)
• M10: 4,468,339 km (0.103 R)
• M11: 4,811,516 km (0.114 R)
• M12: 5,499,517 km (0.111 R)
• M13: 6,002,764 km (0.114 R)
• M14: 7,731,068 km (0.059 R)
• M15: 8,092,946 km (0.103 R)
• M16: 9,505,299 km (0.063 R)
• M17: 9,806,440 km (0.039 R)
• M18: 10,348,881 km (0.091 R)
• M19: 13,601,588 km (0.098 R)
• M20: 16,760,347 km (0.087 R)
• M21: 19,945,136 km (0.101 R)
• M22: 20,815,945 km (0.071 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 290

Radius: 3.3

Gravity: 26.63 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 7.16 AU - 9.92 AU

Year: 16642 Days

Day: 19.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,206,813 km

• M1: 40,990 km (0.113 R)
• M2: 179,667 km (0.118 R)
• M3: 325,824 km (0.061 R)
• M4: 663,616 km (0.119 R)
• M5: 1,114,504 km (0.09 R)
• M6: 1,377,497 km (0.042 R)
• M7: 1,502,411 km (0.12 R)
• M8: 1,619,547 km (0.058 R)
• M9: 3,917,968 km (0.103 R)
• M10: 4,169,592 km (0.067 R)
• M11: 6,316,321 km (0.095 R)
• M12: 8,126,904 km (0.095 R)
• M13: 9,150,154 km (0.092 R)
• M14: 19,207,619 km (0.102 R)
• M15: 20,423,700 km (0.075 R)
• M16: 21,604,176 km (0.091 R)
• M17: 26,881,092 km (0.069 R)
• M18: 28,918,615 km (0.079 R)
• M19: 29,549,469 km (0.11 R)
• M20: 34,929,756 km (0.105 R)
• M21: 37,974,223 km (0.087 R)
• M22: 39,368,026 km (0.083 R)
• M23: 40,795,639 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.4

Radius: 4.2

Gravity: 10.4 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 9.34 AU - 12 AU

Year: 23242 Days

Day: 23.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,206,813 km

• M1: 52,210 km (0.083 R)
• M2: 620,981 km (0.092 R)
• M3: 868,266 km (0.061 R)
• M4: 1,060,051 km (0.092 R)
• M5: 1,777,372 km (0.05 R)
• M6: 2,434,257 km (0.105 R)
• M7: 3,142,602 km (0.04 R)
• M8: 3,784,677 km (0.08 R)
• M9: 4,479,110 km (0.057 R)
• M10: 4,889,008 km (0.065 R)
• M11: 5,746,802 km (0.08 R)
• M12: 6,660,396 km (0.084 R)
• M13: 8,206,191 km (0.098 R)
• M14: 11,174,512 km (0.12 R)
• M15: 15,480,388 km (0.074 R)
• M16: 19,190,116 km (0.106 R)
• M17: 23,637,660 km (0.116 R)
• M18: 27,160,241 km (0.112 R)
• M19: 28,619,569 km (0.116 R)
• M20: 30,571,522 km (0.099 R)
• M21: 31,807,200 km (0.08 R)
• M22: 33,900,224 km (0.075 R)
• M23: 38,358,390 km (0.1 R)
• M24: 39,794,679 km (0.065 R)
• M25: 51,491,587 km (0.119 R)
• M26: 51,648,814 km (0.091 R)
• M27: 51,964,017 km (0.111 R)
• M28: 53,237,843 km (0.113 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: 500 - 15,422 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit