🌌 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: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.6

Radius: 13.3

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.61 AU - 0.69 AU

Year: 355 Days

Day: 6.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,686,457 km

• M1: 165,455 km (0.085 R)
• M2: 744,698 km (0.116 R)
• M3: 1,215,333 km (0.086 R)
• M4: 1,677,441 km (0.109 R)
• M5: 2,512,646 km (0.106 R)
• M6: 3,017,239 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467

Radius: 13.9

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.91 AU - 1.11 AU

Year: 688 Days

Day: 13.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,686,457 km

• M1: 174,880 km (0.111 R)
• M2: 757,713 km (0.109 R)
• M3: 1,267,543 km (0.113 R)
• M4: 1,836,613 km (0.048 R)
• M5: 2,884,546 km (0.098 R)
• M6: 3,453,616 km (0.075 R)
• M7: 4,125,909 km (0.12 R)
• M8: 4,678,524 km (0.091 R)
• M9: 5,112,657 km (0.104 R)
• M10: 7,065,657 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.1

Radius: 10.3

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1 AU - 1.16 AU

Year: 761 Days

Day: 11.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,686,457 km

• M1: 141,968 km (0.1 R)
• M2: 824,883 km (0.092 R)
• M3: 1,228,947 km (0.075 R)
• M4: 2,064,750 km (0.071 R)
• M5: 2,925,237 km (0.081 R)
• M6: 4,024,183 km (0.12 R)
• M7: 4,650,998 km (0.118 R)
• M8: 5,548,286 km (0.092 R)
• M9: 6,160,291 km (0.092 R)
• M10: 7,779,538 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.1

Radius: 8.1

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.96 AU - 1.3 AU

Year: 815 Days

Day: 7.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,686,457 km

• M1: 100,829 km (0.117 R)
• M2: 401,670 km (0.057 R)
• M3: 1,106,575 km (0.095 R)
• M4: 1,724,115 km (0.052 R)
• M5: 2,043,956 km (0.118 R)
• M6: 2,535,385 km (0.114 R)
• M7: 2,961,290 km (0.11 R)
• M8: 3,812,352 km (0.046 R)
• M9: 4,092,250 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.5

Radius: 10.5

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.24 AU - 1.34 AU

Year: 994 Days

Day: 13.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 119.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,686,457 km

• M1: 130,599 km (0.098 R)
• M2: 572,511 km (0.103 R)
• M3: 1,159,533 km (0.083 R)
• M4: 1,510,041 km (0.117 R)
• M5: 1,942,528 km (0.103 R)
• M6: 2,340,309 km (0.113 R)
• M7: 3,435,515 km (0.118 R)
• M8: 4,437,522 km (0.074 R)
• M9: 4,996,868 km (0.109 R)
• M10: 5,602,889 km (0.085 R)
• M11: 6,579,614 km (0.115 R)
• M12: 6,961,687 km (0.098 R)
• M13: 9,070,418 km (0.04 R)
• M14: 10,933,959 km (0.034 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.5

Radius: 10.2

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.95 AU - 2.51 AU

Year: 2259 Days

Day: 10.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,686,457 km

• M1: 127,158 km (0.066 R)
• M2: 640,578 km (0.068 R)
• M3: 958,623 km (0.079 R)
• M4: 1,320,201 km (0.11 R)
• M5: 1,773,932 km (0.107 R)
• M6: 2,186,672 km (0.107 R)
• M7: 2,570,391 km (0.06 R)
• M8: 2,912,521 km (0.065 R)
• M9: 3,426,988 km (0.033 R)
• M10: 4,090,754 km (0.114 R)
• M11: 5,788,091 km (0.092 R)
• M12: 6,806,254 km (0.056 R)
• M13: 7,412,275 km (0.09 R)
• M14: 7,939,757 km (0.04 R)
• M15: 9,257,715 km (0.05 R)
• M16: 10,068,685 km (0.049 R)
• M17: 11,174,961 km (0.084 R)
• M18: 12,630,399 km (0.059 R)
• M19: 13,142,622 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.3

Radius: 12.3

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.26 AU - 3.62 AU

Year: 3419 Days

Day: 8.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 174.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,686,457 km

• M1: 153,338 km (0.065 R)
• M2: 559,795 km (0.102 R)
• M3: 1,265,598 km (0.081 R)
• M4: 1,752,090 km (0.09 R)
• M5: 2,304,406 km (0.107 R)
• M6: 2,719,240 km (0.108 R)
• M7: 3,184,340 km (0.051 R)
• M8: 4,014,160 km (0.072 R)
• M9: 8,154,281 km (0.045 R)
• M10: 10,714,798 km (0.083 R)
• M11: 14,941,237 km (0.073 R)
• M12: 15,739,940 km (0.073 R)
• M13: 16,343,567 km (0.117 R)
• M14: 17,950,099 km (0.094 R)
• M15: 19,596,573 km (0.055 R)
• M16: 21,541,794 km (0.102 R)
• M17: 22,492,189 km (0.106 R)
• M18: 23,188,119 km (0.09 R)
• M19: 24,186,385 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.6

Radius: 13.7

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.51 AU - 4.07 AU

Year: 5004 Days

Day: 5.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,686,457 km

• M1: 170,392 km (0.027 R)
• M2: 643,869 km (0.115 R)
• M3: 1,078,002 km (0.053 R)
• M4: 1,896,602 km (0.059 R)
• M5: 2,811,542 km (0.109 R)
• M6: 3,272,304 km (0.107 R)
• M7: 3,892,387 km (0.041 R)
• M8: 5,074,061 km (0.096 R)
• M9: 6,175,849 km (0.104 R)
• M10: 6,929,673 km (0.056 R)
• M11: 7,708,778 km (0.087 R)
• M12: 8,138,124 km (0.111 R)
• M13: 10,574,026 km (0.065 R)
• M14: 12,806,326 km (0.114 R)
• M15: 15,961,345 km (0.072 R)
• M16: 23,463,828 km (0.083 R)
• M17: 24,830,703 km (0.074 R)
• M18: 25,612,651 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 684.7

Radius: 4.8

Gravity: 29.72 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 5.68 AU - 7.54 AU

Year: 11526 Days

Day: 17.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,686,457 km

• M1: 61,036 km (0.081 R)
• M2: 230,231 km (0.093 R)
• M3: 582,684 km (0.113 R)
• M4: 922,121 km (0.094 R)
• M5: 1,383,481 km (0.045 R)
• M6: 1,866,233 km (0.102 R)
• M7: 2,020,618 km (0.086 R)
• M8: 2,970,266 km (0.087 R)
• M9: 4,128,153 km (0.09 R)
• M10: 5,016,914 km (0.058 R)
• M11: 6,481,477 km (0.102 R)
• M12: 7,164,541 km (0.089 R)
• M13: 7,374,427 km (0.087 R)
• M14: 10,868,136 km (0.117 R)
• M15: 11,771,557 km (0.109 R)
• M16: 16,316,939 km (0.093 R)
• M17: 22,084,535 km (0.077 R)
• M18: 27,308,792 km (0.071 R)
• M19: 38,809,577 km (0.089 R)
• M20: 39,326,737 km (0.101 R)
• M21: 42,938,927 km (0.085 R)
• M22: 49,743,386 km (0.11 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 11,179 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit