🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.3

Radius: 8.3

Gravity: 10.08 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.58 AU - 0.62 AU

Year: 310 Days

Day: 10.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,909,365 km

• M1: 103,223 km (0.091 R)
• M2: 475,272 km (0.105 R)
• M3: 737,966 km (0.084 R)
• M4: 1,067,381 km (0.094 R)
• M5: 1,327,232 km (0.081 R)
• M6: 1,670,111 km (0.11 R)
• M7: 2,175,751 km (0.05 R)
• M8: 2,675,109 km (0.062 R)
• M9: 3,357,575 km (0.104 R)
• M10: 3,733,963 km (0.03 R)
• M11: 4,062,779 km (0.043 R)
• M12: 4,344,771 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.5

Radius: 9.2

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.73 AU - 1.07 AU

Year: 569 Days

Day: 13.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 28,909,365 km

• M1: 114,442 km (0.096 R)
• M2: 406,906 km (0.108 R)
• M3: 731,982 km (0.066 R)
• M4: 1,053,468 km (0.105 R)
• M5: 1,391,709 km (0.115 R)
• M6: 1,873,713 km (0.117 R)
• M7: 2,185,475 km (0.068 R)
• M8: 2,724,177 km (0.065 R)
• M9: 3,149,783 km (0.03 R)
• M10: 3,864,711 km (0.101 R)
• M11: 4,176,773 km (0.096 R)
• M12: 4,639,030 km (0.096 R)
• M13: 5,023,496 km (0.086 R)
• M14: 5,362,934 km (0.095 R)
• M15: 5,665,870 km (0.07 R)
• M16: 6,087,885 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.1

Radius: 12

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.34 AU - 1.66 AU

Year: 1225 Days

Day: 13.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 28,909,365 km

• M1: 149,299 km (0.099 R)
• M2: 532,419 km (0.068 R)
• M3: 1,067,381 km (0.113 R)
• M4: 1,466,508 km (0.08 R)
• M5: 2,000,423 km (0.035 R)
• M6: 2,509,355 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956

Radius: 10.1

Gravity: 9.37 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.58 AU - 2 AU

Year: 1597 Days

Day: 10.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,909,365 km

• M1: 126,859 km (0.107 R)
• M2: 483,949 km (0.084 R)
• M3: 930,798 km (0.104 R)
• M4: 1,334,862 km (0.062 R)
• M5: 1,866,233 km (0.091 R)
• M6: 2,917,009 km (0.099 R)
• M7: 4,283,885 km (0.109 R)
• M8: 4,788,029 km (0.1 R)
• M9: 5,653,304 km (0.095 R)
• M10: 8,346,364 km (0.063 R)
• M11: 8,972,731 km (0.034 R)
• M12: 9,563,193 km (0.063 R)
• M13: 11,796,690 km (0.054 R)
• M14: 12,465,243 km (0.109 R)
• M15: 14,138,196 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.8

Radius: 11.9

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.77 AU - 2.81 AU

Year: 2311 Days

Day: 9.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,909,365 km

• M1: 319,691 km (0.117 R)
• M2: 794,963 km (0.101 R)
• M3: 1,270,684 km (0.05 R)
• M4: 2,226,016 km (0.045 R)
• M5: 2,709,965 km (0.104 R)
• M6: 3,327,805 km (0.087 R)
• M7: 4,000,995 km (0.077 R)
• M8: 5,807,389 km (0.103 R)
• M9: 6,679,844 km (0.071 R)
• M10: 7,243,978 km (0.042 R)
• M11: 13,718,125 km (0.097 R)
• M12: 14,899,350 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.4

Radius: 9.2

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.2 AU - 3.62 AU

Year: 3310 Days

Day: 8.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 28,909,365 km

• M1: 114,442 km (0.061 R)
• M2: 436,227 km (0.088 R)
• M3: 760,107 km (0.106 R)
• M4: 1,143,975 km (0.095 R)
• M5: 1,611,767 km (0.097 R)
• M6: 1,953,449 km (0.105 R)
• M7: 2,817,377 km (0.065 R)
• M8: 3,263,328 km (0.107 R)
• M9: 4,794,612 km (0.099 R)
• M10: 5,509,091 km (0.105 R)
• M11: 6,097,011 km (0.098 R)
• M12: 7,815,890 km (0.078 R)
• M13: 8,947,149 km (0.059 R)
• M14: 9,912,505 km (0.062 R)
• M15: 10,500,275 km (0.071 R)
• M16: 10,823,107 km (0.078 R)
• M17: 12,005,678 km (0.069 R)
• M18: 12,583,126 km (0.094 R)
• M19: 14,328,334 km (0.107 R)
• M20: 15,079,765 km (0.108 R)
• M21: 18,003,805 km (0.116 R)
• M22: 18,466,960 km (0.107 R)
• M23: 19,056,974 km (0.107 R)
• M24: 19,538,080 km (0.047 R)
• M25: 20,776,152 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.2

Radius: 14.5

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.82 AU - 5.3 AU

Year: 7590 Days

Day: 14.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 28,909,365 km

• M1: 180,265 km (0.106 R)
• M2: 639,082 km (0.049 R)
• M3: 1,121,984 km (0.097 R)
• M4: 1,627,924 km (0.03 R)
• M5: 2,256,983 km (0.04 R)
• M6: 4,480,157 km (0.06 R)
• M7: 5,038,157 km (0.096 R)
• M8: 5,523,602 km (0.085 R)
• M9: 7,031,549 km (0.092 R)
• M10: 7,530,158 km (0.108 R)
• M11: 8,678,621 km (0.113 R)
• M12: 10,989,011 km (0.059 R)
• M13: 11,662,351 km (0.066 R)
• M14: 12,828,317 km (0.095 R)
• M15: 16,794,156 km (0.104 R)
• M16: 17,688,452 km (0.084 R)
• M17: 20,063,767 km (0.087 R)
• M18: 21,070,860 km (0.104 R)
• M19: 25,191,384 km (0.043 R)
• M20: 26,109,316 km (0.057 R)
• M21: 29,728,687 km (0.12 R)
• M22: 31,706,222 km (0.116 R)
• M23: 32,482,186 km (0.111 R)
• M24: 33,370,348 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921

Radius: 13.4

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.76 AU - 6.52 AU

Year: 8932 Days

Day: 11.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 28,909,365 km

• M1: 166,802 km (0.071 R)
• M2: 619,485 km (0.11 R)
• M3: 1,384,079 km (0.108 R)
• M4: 2,410,321 km (0.105 R)
• M5: 3,067,355 km (0.089 R)
• M6: 4,109,005 km (0.065 R)
• M7: 5,083,336 km (0.119 R)
• M8: 5,608,424 km (0.062 R)
• M9: 6,279,221 km (0.074 R)
• M10: 7,446,832 km (0.068 R)
• M11: 7,995,707 km (0.088 R)
• M12: 8,986,344 km (0.098 R)
• M13: 9,956,486 km (0.101 R)
• M14: 11,990,868 km (0.071 R)
• M15: 15,884,152 km (0.052 R)
• M16: 16,939,416 km (0.073 R)
• M17: 18,878,653 km (0.048 R)
• M18: 19,662,546 km (0.04 R)
• M19: 22,404,376 km (0.111 R)
• M20: 25,771,076 km (0.053 R)
• M21: 29,150,043 km (0.102 R)
• M22: 32,035,636 km (0.093 R)
• M23: 34,872,760 km (0.079 R)
• M24: 35,933,857 km (0.107 R)
• M25: 36,532,698 km (0.048 R)
• M26: 42,624,323 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 986.8

Radius: 4.6

Gravity: 46.64 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.66 AU - 6.96 AU

Year: 10570 Days

Day: 15.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,909,365 km

• M1: 59,989 km (0.073 R)
• M2: 239,057 km (0.075 R)
• M3: 424,110 km (0.113 R)
• M4: 687,851 km (0.062 R)
• M5: 1,572,274 km (0.068 R)
• M6: 2,129,376 km (0.106 R)
• M7: 2,525,511 km (0.072 R)
• M8: 2,763,671 km (0.102 R)
• M9: 2,946,031 km (0.047 R)
• M10: 4,334,598 km (0.07 R)
• M11: 5,035,614 km (0.095 R)
• M12: 7,544,969 km (0.083 R)
• M13: 7,766,822 km (0.106 R)
• M14: 10,071,228 km (0.052 R)
• M15: 11,465,480 km (0.102 R)
• M16: 14,905,932 km (0.059 R)
• M17: 19,720,440 km (0.1 R)
• M18: 21,797,607 km (0.053 R)
• M19: 23,260,823 km (0.12 R)
• M20: 24,400,161 km (0.074 R)
• M21: 40,287,754 km (0.103 R)
• M22: 52,389,474 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 124.2

Radius: 7.9

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.07 AU - 7.89 AU

Year: 11000 Days

Day: 19.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 96.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,909,365 km

• M1: 98,585 km (0.032 R)
• M2: 604,675 km (0.073 R)
• M3: 1,873,863 km (0.032 R)
• M4: 2,486,167 km (0.069 R)
• M5: 4,813,611 km (0.117 R)
• M6: 5,925,572 km (0.098 R)
• M7: 6,290,441 km (0.088 R)
• M8: 11,123,050 km (0.102 R)
• M9: 13,929,058 km (0.077 R)
• M10: 19,135,961 km (0.084 R)
• M11: 19,665,388 km (0.036 R)
• M12: 26,638,145 km (0.092 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 11,251 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit