🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.2

Radius: 14.2

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.66 AU - 0.72 AU

Year: 376 Days

Day: 5.4 Hours

Environment

Temp: -129 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,078,935 km

• M1: 176,825 km (0.077 R)
• M2: 642,074 km (0.089 R)
• M3: 1,205,609 km (0.069 R)
• M4: 1,944,922 km (0.087 R)
• M5: 2,527,755 km (0.113 R)
• M6: 3,069,150 km (0.085 R)
• M7: 4,110,052 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.7

Radius: 12.7

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.78 AU - 1.06 AU

Year: 579 Days

Day: 10.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,078,935 km

• M1: 157,975 km (0.075 R)
• M2: 560,992 km (0.043 R)
• M3: 994,826 km (0.104 R)
• M4: 1,461,272 km (0.085 R)
• M5: 2,109,629 km (0.085 R)
• M6: 2,921,796 km (0.114 R)
• M7: 3,431,626 km (0.106 R)
• M8: 3,946,242 km (0.093 R)
• M9: 4,453,229 km (0.096 R)
• M10: 5,428,907 km (0.119 R)
• M11: 6,149,220 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.9

Radius: 13.3

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.9 AU - 1.3 AU

Year: 757 Days

Day: 6.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,078,935 km

• M1: 165,455 km (0.093 R)
• M2: 611,257 km (0.117 R)
• M3: 1,104,032 km (0.111 R)
• M4: 1,567,636 km (0.084 R)
• M5: 2,427,674 km (0.082 R)
• M6: 2,872,429 km (0.096 R)
• M7: 3,476,056 km (0.117 R)
• M8: 4,030,615 km (0.077 R)
• M9: 4,469,236 km (0.11 R)
• M10: 5,479,471 km (0.069 R)
• M11: 6,313,180 km (0.118 R)
• M12: 7,788,963 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.6

Radius: 11.6

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.36 AU - 3.26 AU

Year: 3090 Days

Day: 8.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,078,935 km

• M1: 144,212 km (0.103 R)
• M2: 645,216 km (0.028 R)
• M3: 1,272,180 km (0.103 R)
• M4: 1,846,786 km (0.095 R)
• M5: 2,928,528 km (0.112 R)
• M6: 4,129,948 km (0.107 R)
• M7: 4,642,471 km (0.098 R)
• M8: 5,741,716 km (0.091 R)
• M9: 6,352,823 km (0.098 R)
• M10: 7,574,888 km (0.12 R)
• M11: 8,207,687 km (0.086 R)
• M12: 9,770,237 km (0.105 R)
• M13: 11,055,731 km (0.073 R)
• M14: 11,695,711 km (0.094 R)
• M15: 13,523,797 km (0.102 R)
• M16: 15,221,434 km (0.077 R)
• M17: 17,853,907 km (0.098 R)
• M18: 20,017,691 km (0.115 R)
• M19: 20,712,424 km (0.114 R)
• M20: 21,292,714 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582

Radius: 12.5

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.98 AU - 3.18 AU

Year: 3546 Days

Day: 7.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,078,935 km

• M1: 260,599 km (0.031 R)
• M2: 689,497 km (0.11 R)
• M3: 1,123,929 km (0.082 R)
• M4: 2,796,732 km (0.033 R)
• M5: 3,258,840 km (0.045 R)
• M6: 4,472,228 km (0.085 R)
• M7: 4,913,692 km (0.086 R)
• M8: 5,384,177 km (0.096 R)
• M9: 6,021,613 km (0.112 R)
• M10: 6,416,253 km (0.116 R)
• M11: 8,412,187 km (0.091 R)
• M12: 9,799,857 km (0.101 R)
• M13: 11,292,545 km (0.056 R)
• M14: 12,249,074 km (0.116 R)
• M15: 16,732,522 km (0.115 R)
• M16: 20,835,243 km (0.101 R)
• M17: 21,742,704 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.6

Radius: 11.2

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.31 AU - 3.37 AU

Year: 4004 Days

Day: 7.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,078,935 km

• M1: 139,276 km (0.101 R)
• M2: 624,721 km (0.1 R)
• M3: 1,744,162 km (0.056 R)
• M4: 2,374,866 km (0.074 R)
• M5: 3,037,734 km (0.056 R)
• M6: 4,144,459 km (0.082 R)
• M7: 4,751,677 km (0.058 R)
• M8: 7,264,323 km (0.116 R)
• M9: 7,764,877 km (0.11 R)
• M10: 8,544,432 km (0.08 R)
• M11: 9,042,742 km (0.114 R)
• M12: 10,456,143 km (0.026 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 369.7

Radius: 4

Gravity: 23.11 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.15 AU - 6.47 AU

Year: 10398 Days

Day: 16.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 27,078,935 km

• M1: 49,816 km (0.093 R)
• M2: 201,658 km (0.116 R)
• M3: 360,232 km (0.077 R)
• M4: 602,730 km (0.098 R)
• M5: 845,976 km (0.047 R)
• M6: 1,097,749 km (0.116 R)
• M7: 1,947,465 km (0.073 R)
• M8: 2,279,722 km (0.115 R)
• M9: 2,766,813 km (0.092 R)
• M10: 3,411,280 km (0.104 R)
• M11: 3,695,217 km (0.074 R)
• M12: 3,994,712 km (0.098 R)
• M13: 5,739,921 km (0.062 R)
• M14: 10,635,511 km (0.077 R)
• M15: 11,189,023 km (0.078 R)
• M16: 13,248,986 km (0.111 R)
• M17: 14,734,044 km (0.05 R)
• M18: 17,335,252 km (0.086 R)
• M19: 17,889,811 km (0.057 R)
• M20: 22,026,641 km (0.112 R)
• M21: 22,431,602 km (0.036 R)
• M22: 24,272,703 km (0.078 R)
• M23: 28,157,162 km (0.111 R)
• M24: 29,408,398 km (0.087 R)
• M25: 34,349,167 km (0.027 R)
• M26: 37,472,172 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.3

Radius: 6.3

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 5.98 AU - 9 AU

Year: 13447 Days

Day: 21.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,078,935 km

• M1: 78,389 km (0.104 R)
• M2: 354,248 km (0.089 R)
• M3: 690,394 km (0.094 R)
• M4: 996,771 km (0.064 R)
• M5: 1,513,631 km (0.059 R)
• M6: 2,538,825 km (0.119 R)
• M7: 3,809,510 km (0.071 R)
• M8: 4,052,756 km (0.074 R)
• M9: 5,651,957 km (0.064 R)
• M10: 5,939,634 km (0.081 R)
• M11: 9,865,232 km (0.053 R)
• M12: 12,842,379 km (0.078 R)
• M13: 15,797,685 km (0.095 R)
• M14: 16,836,343 km (0.118 R)
• M15: 19,241,577 km (0.068 R)
• M16: 20,358,176 km (0.082 R)
• M17: 21,378,882 km (0.097 R)
• M18: 25,258,404 km (0.092 R)
• M19: 25,647,059 km (0.117 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: 253 - 13,123 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit