🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.46 AU - 0.64 AU

Year: 263 Days

Day: 43.2 Hours

Environment

Temp: -119 °C

Axial Tilt: 24.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.53 AU - 0.65 AU

Year: 293 Days

Day: 30.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 77,597,122 km

• M1: 34,856 km (0.1 R)
• M2: 99,782 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.8

Radius: 10.3

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.82 AU - 1.04 AU

Year: 579 Days

Day: 11.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,597,122 km

• M1: 128,056 km (0.076 R)
• M2: 467,045 km (0.114 R)
• M3: 981,661 km (0.115 R)
• M4: 1,487,152 km (0.115 R)
• M5: 2,189,215 km (0.104 R)
• M6: 2,616,467 km (0.113 R)
• M7: 3,014,696 km (0.098 R)
• M8: 3,479,646 km (0.095 R)
• M9: 3,991,870 km (0.094 R)
• M10: 4,666,107 km (0.1 R)
• M11: 5,290,230 km (0.111 R)
• M12: 5,668,712 km (0.094 R)
• M13: 6,260,372 km (0.042 R)
• M14: 6,622,698 km (0.096 R)
• M15: 6,956,301 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.5

Radius: 14.3

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.59 AU - 4.23 AU

Year: 4992 Days

Day: 9.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 77,597,122 km

• M1: 184,454 km (0.045 R)
• M2: 799,750 km (0.119 R)
• M3: 1,502,860 km (0.074 R)
• M4: 2,233,197 km (0.096 R)
• M5: 4,002,940 km (0.057 R)
• M6: 4,625,267 km (0.026 R)
• M7: 5,205,856 km (0.118 R)
• M8: 6,182,730 km (0.064 R)
• M9: 6,699,741 km (0.078 R)
• M10: 7,147,188 km (0.103 R)
• M11: 8,245,835 km (0.108 R)
• M12: 8,911,695 km (0.045 R)
• M13: 9,733,585 km (0.078 R)
• M14: 10,435,499 km (0.104 R)
• M15: 10,907,630 km (0.031 R)
• M16: 12,268,073 km (0.105 R)
• M17: 13,038,502 km (0.104 R)
• M18: 13,688,056 km (0.025 R)
• M19: 14,464,319 km (0.034 R)
• M20: 15,160,697 km (0.11 R)
• M21: 15,767,316 km (0.105 R)
• M22: 17,206,298 km (0.081 R)
• M23: 17,745,299 km (0.101 R)
• M24: 19,753,651 km (0.057 R)
• M25: 21,562,588 km (0.084 R)
• M26: 23,044,206 km (0.085 R)
• M27: 23,920,700 km (0.087 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 507

Radius: 7.9

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 5.75 AU - 7.63 AU

Year: 11173 Days

Day: 22.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 77,597,122 km

• M1: 98,435 km (0.09 R)
• M2: 356,641 km (0.096 R)
• M3: 702,811 km (0.116 R)
• M4: 1,513,182 km (0.041 R)
• M5: 2,182,483 km (0.109 R)
• M6: 3,147,390 km (0.095 R)
• M7: 4,428,845 km (0.11 R)
• M8: 4,965,901 km (0.108 R)
• M9: 6,724,574 km (0.101 R)
• M10: 10,363,542 km (0.047 R)
• M11: 12,833,104 km (0.099 R)
• M12: 14,362,144 km (0.113 R)
• M13: 14,681,984 km (0.112 R)
• M14: 15,006,611 km (0.101 R)
• M15: 16,984,295 km (0.113 R)
• M16: 18,899,746 km (0.032 R)
• M17: 19,516,987 km (0.039 R)
• M18: 23,329,938 km (0.081 R)
• M19: 26,067,579 km (0.058 R)
• M20: 27,513,592 km (0.072 R)
• M21: 27,907,932 km (0.075 R)
• M22: 30,459,323 km (0.085 R)
• M23: 32,499,539 km (0.099 R)
• M24: 33,385,158 km (0.111 R)
• M25: 33,721,305 km (0.113 R)
• M26: 36,611,685 km (0.074 R)
• M27: 38,792,224 km (0.117 R)
• M28: 40,801,922 km (0.104 R)
• M29: 42,354,149 km (0.048 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 78.6

Radius: 6.4

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.23 AU - 7.89 AU

Year: 12112 Days

Day: 23.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,597,122 km

• M1: 125,213 km (0.094 R)
• M2: 368,310 km (0.056 R)
• M3: 2,581,610 km (0.094 R)
• M4: 5,017,812 km (0.085 R)
• M5: 6,068,886 km (0.035 R)
• M6: 12,079,130 km (0.049 R)
• M7: 12,698,017 km (0.039 R)
• M8: 13,538,906 km (0.049 R)
• M9: 15,276,486 km (0.108 R)
• M10: 18,744,164 km (0.115 R)
• M11: 22,560,256 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 325.2

Radius: 3.8

Gravity: 22.52 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 5.65 AU - 9.23 AU

Year: 13103 Days

Day: 19.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 77,597,122 km

• M1: 50,564 km (0.085 R)
• M2: 308,172 km (0.104 R)
• M3: 584,329 km (0.07 R)
• M4: 780,153 km (0.089 R)
• M5: 977,472 km (0.032 R)
• M6: 1,115,701 km (0.071 R)
• M7: 1,354,160 km (0.055 R)
• M8: 3,175,215 km (0.107 R)
• M9: 3,653,330 km (0.066 R)
• M10: 6,819,868 km (0.047 R)
• M11: 7,129,535 km (0.096 R)
• M12: 8,243,591 km (0.12 R)
• M13: 9,612,112 km (0.107 R)
• M14: 11,553,892 km (0.098 R)
• M15: 14,740,776 km (0.115 R)
• M16: 16,055,891 km (0.037 R)
• M17: 17,879,788 km (0.098 R)
• M18: 29,704,303 km (0.097 R)
• M19: 33,752,870 km (0.096 R)
• M20: 34,199,270 km (0.112 R)
• M21: 34,762,805 km (0.064 R)
• M22: 36,373,675 km (0.102 R)
• M23: 37,793,508 km (0.093 R)
• M24: 40,742,980 km (0.088 R)
• M25: 42,792,321 km (0.119 R)
• M26: 42,922,771 km (0.057 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99.2

Radius: 4.5

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 7.04 AU - 7.94 AU

Year: 13235 Days

Day: 15.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 77,597,122 km

• M1: 57,894 km (0.053 R)
• M2: 287,527 km (0.114 R)
• M3: 501,302 km (0.088 R)
• M4: 645,515 km (0.118 R)
• M5: 841,488 km (0.075 R)
• M6: 1,029,981 km (0.086 R)
• M7: 1,376,899 km (0.07 R)
• M8: 3,160,554 km (0.093 R)
• M9: 3,597,530 km (0.108 R)
• M10: 3,933,526 km (0.116 R)
• M11: 4,192,929 km (0.118 R)
• M12: 5,489,793 km (0.079 R)
• M13: 6,088,484 km (0.117 R)
• M14: 7,557,385 km (0.082 R)
• M15: 8,032,957 km (0.103 R)
• M16: 11,935,367 km (0.116 R)
• M17: 17,001,200 km (0.095 R)
• M18: 17,436,679 km (0.038 R)
• M19: 18,722,024 km (0.091 R)
• M20: 24,261,184 km (0.086 R)
• M21: 24,654,477 km (0.112 R)
• M22: 24,813,051 km (0.114 R)
• M23: 25,860,086 km (0.062 R)
• M24: 26,188,154 km (0.086 R)
• M25: 26,852,519 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 582

Radius: 3.2

Gravity: 56.84 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 8.15 AU - 13.09 AU

Year: 22346 Days

Day: 22.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 77,597,122 km

• M1: 75,248 km (0.101 R)
• M2: 218,114 km (0.078 R)
• M3: 369,507 km (0.083 R)
• M4: 492,177 km (0.113 R)
• M5: 876,943 km (0.119 R)
• M6: 1,295,817 km (0.071 R)
• M7: 2,154,808 km (0.033 R)
• M8: 2,605,097 km (0.079 R)
• M9: 5,115,948 km (0.092 R)
• M10: 5,744,857 km (0.062 R)
• M11: 9,164,366 km (0.119 R)
• M12: 9,446,507 km (0.051 R)
• M13: 11,916,218 km (0.101 R)
• M14: 12,049,809 km (0.039 R)
• M15: 12,252,215 km (0.056 R)
• M16: 13,806,537 km (0.105 R)
• M17: 14,252,189 km (0.099 R)
• M18: 16,130,989 km (0.037 R)
• M19: 16,376,778 km (0.117 R)
• M20: 17,385,367 km (0.032 R)
• M21: 18,256,924 km (0.082 R)
• M22: 18,974,695 km (0.097 R)
• M23: 19,618,115 km (0.092 R)
• M24: 20,466,485 km (0.114 R)
• M25: 22,236,078 km (0.077 R)
• M26: 22,642,685 km (0.109 R)
• M27: 23,575,727 km (0.071 R)
• M28: 28,033,594 km (0.09 R)
• M29: 30,210,841 km (0.097 R)
• M30: 31,467,912 km (0.092 R)
• M31: 33,285,676 km (0.105 R)
• M32: 34,490,387 km (0.066 R)
• M33: 46,668,103 km (0.077 R)
• M34: 47,669,661 km (0.066 R)
• M35: 48,006,705 km (0.111 R)
• M36: 49,888,646 km (0.107 R)
• M37: 50,935,681 km (0.113 R)
• M38: 53,798,985 km (0.078 R)
• M39: 58,292,306 km (0.103 R)
• M40: 58,870,951 km (0.115 R)
• M41: 61,821,769 km (0.094 R)
• M42: 69,952,264 km (0.108 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: 473 - 12,362 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit