🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.52 AU - 0.7 AU

Year: 308 Days

Day: 18 Hours

Environment

Temp: -121 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,129,885 km

• M1: 42,935 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.2

Radius: 12.5

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.69 AU - 1.03 AU

Year: 515 Days

Day: 8.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,129,885 km

• M1: 155,432 km (0.078 R)
• M2: 607,816 km (0.1 R)
• M3: 1,067,530 km (0.115 R)
• M4: 1,594,414 km (0.091 R)
• M5: 2,173,807 km (0.104 R)
• M6: 2,771,899 km (0.068 R)
• M7: 3,366,550 km (0.103 R)
• M8: 4,031,214 km (0.093 R)
• M9: 5,182,818 km (0.103 R)
• M10: 5,571,473 km (0.059 R)
• M11: 6,698,394 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325

Radius: 11.9

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.99 AU - 1.49 AU

Year: 892 Days

Day: 7.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,129,885 km

• M1: 148,401 km (0.099 R)
• M2: 562,039 km (0.108 R)
• M3: 1,067,680 km (0.085 R)
• M4: 1,453,044 km (0.114 R)
• M5: 2,092,126 km (0.118 R)
• M6: 2,560,816 km (0.11 R)
• M7: 3,208,575 km (0.073 R)
• M8: 3,712,720 km (0.117 R)
• M9: 4,092,250 km (0.036 R)
• M10: 4,576,049 km (0.033 R)
• M11: 5,251,484 km (0.096 R)
• M12: 6,358,807 km (0.08 R)
• M13: 7,115,623 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.8

Radius: 13.5

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.25 AU - 1.61 AU

Year: 1104 Days

Day: 13.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,129,885 km

• M1: 168,298 km (0.052 R)
• M2: 707,598 km (0.111 R)
• M3: 2,517,882 km (0.104 R)
• M4: 3,054,789 km (0.08 R)
• M5: 4,225,541 km (0.049 R)
• M6: 5,843,891 km (0.068 R)
• M7: 6,835,276 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.8

Radius: 11

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.76 AU - 2.04 AU

Year: 1691 Days

Day: 8.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,129,885 km

• M1: 145,559 km (0.12 R)
• M2: 675,584 km (0.049 R)
• M3: 1,042,099 km (0.099 R)
• M4: 2,070,435 km (0.109 R)
• M5: 2,413,014 km (0.089 R)
• M6: 3,020,979 km (0.056 R)
• M7: 4,041,386 km (0.115 R)
• M8: 4,621,527 km (0.073 R)
• M9: 5,024,693 km (0.118 R)
• M10: 5,718,827 km (0.075 R)
• M11: 6,574,976 km (0.077 R)
• M12: 7,112,780 km (0.077 R)
• M13: 8,721,257 km (0.098 R)
• M14: 9,594,609 km (0.114 R)
• M15: 10,767,157 km (0.096 R)
• M16: 11,551,648 km (0.102 R)
• M17: 12,643,414 km (0.094 R)
• M18: 13,638,838 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.3

Radius: 10.6

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.68 AU - 2.36 AU

Year: 1854 Days

Day: 7.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,129,885 km

• M1: 132,095 km (0.111 R)
• M2: 711,637 km (0.104 R)
• M3: 1,224,758 km (0.069 R)
• M4: 1,557,912 km (0.085 R)
• M5: 2,119,054 km (0.112 R)
• M6: 3,334,985 km (0.119 R)
• M7: 3,960,753 km (0.056 R)
• M8: 4,312,308 km (0.068 R)
• M9: 4,684,508 km (0.063 R)
• M10: 6,742,825 km (0.099 R)
• M11: 8,202,900 km (0.057 R)
• M12: 9,757,820 km (0.119 R)
• M13: 10,810,391 km (0.08 R)
• M14: 12,425,450 km (0.092 R)
• M15: 12,884,865 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784

Radius: 10.7

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.82 AU - 4.08 AU

Year: 5069 Days

Day: 13.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,129,885 km

• M1: 133,142 km (0.102 R)
• M2: 484,996 km (0.1 R)
• M3: 837,299 km (0.069 R)
• M4: 1,273,826 km (0.034 R)
• M5: 1,676,543 km (0.08 R)
• M6: 2,179,791 km (0.101 R)
• M7: 2,874,074 km (0.109 R)
• M8: 3,263,178 km (0.09 R)
• M9: 3,665,447 km (0.114 R)
• M10: 4,006,381 km (0.114 R)
• M11: 4,494,070 km (0.09 R)
• M12: 7,408,984 km (0.051 R)
• M13: 10,651,518 km (0.094 R)
• M14: 12,129,395 km (0.113 R)
• M15: 12,582,976 km (0.104 R)
• M16: 13,524,096 km (0.051 R)
• M17: 14,399,543 km (0.047 R)
• M18: 15,605,451 km (0.039 R)
• M19: 17,001,948 km (0.064 R)
• M20: 17,762,952 km (0.113 R)
• M21: 18,414,152 km (0.033 R)
• M22: 21,397,582 km (0.076 R)
• M23: 25,011,567 km (0.102 R)
• M24: 25,912,745 km (0.042 R)
• M25: 30,932,202 km (0.069 R)
• M26: 31,495,588 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.7

Radius: 12.5

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.22 AU - 5.28 AU

Year: 5657 Days

Day: 9.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,129,885 km

• M1: 155,582 km (0.057 R)
• M2: 549,473 km (0.092 R)
• M3: 1,184,965 km (0.068 R)
• M4: 1,969,905 km (0.104 R)
• M5: 2,976,549 km (0.093 R)
• M6: 3,757,899 km (0.096 R)
• M7: 5,122,829 km (0.095 R)
• M8: 6,724,873 km (0.067 R)
• M9: 8,473,523 km (0.089 R)
• M10: 9,018,657 km (0.097 R)
• M11: 11,639,163 km (0.099 R)
• M12: 12,260,742 km (0.118 R)
• M13: 13,570,172 km (0.118 R)
• M14: 14,376,056 km (0.099 R)
• M15: 16,854,893 km (0.085 R)
• M16: 18,195,589 km (0.06 R)
• M17: 19,246,813 km (0.112 R)
• M18: 21,088,513 km (0.095 R)
• M19: 22,327,033 km (0.077 R)
• M20: 24,779,391 km (0.108 R)
• M21: 26,688,410 km (0.099 R)
• M22: 27,135,558 km (0.111 R)
• M23: 29,541,989 km (0.119 R)
• M24: 31,289,143 km (0.1 R)
• M25: 32,491,610 km (0.086 R)
• M26: 34,352,757 km (0.107 R)
• M27: 36,943,493 km (0.04 R)

Asteroid Belt

Center: 5.07 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.4

Radius: 8.1

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.18 AU - 6.6 AU

Year: 9230 Days

Day: 6.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 43,129,885 km

• M1: 108,458 km (0.118 R)
• M2: 396,434 km (0.096 R)
• M3: 746,493 km (0.114 R)
• M4: 1,083,238 km (0.107 R)
• M5: 1,494,932 km (0.105 R)
• M6: 2,447,870 km (0.09 R)
• M7: 3,662,006 km (0.045 R)
• M8: 3,931,432 km (0.059 R)
• M9: 4,266,980 km (0.1 R)
• M10: 4,966,201 km (0.053 R)
• M11: 5,515,374 km (0.094 R)
• M12: 6,138,449 km (0.06 R)
• M13: 6,807,302 km (0.067 R)
• M14: 9,018,358 km (0.063 R)
• M15: 10,166,222 km (0.104 R)
• M16: 11,152,372 km (0.106 R)
• M17: 11,616,424 km (0.085 R)
• M18: 12,527,924 km (0.099 R)
• M19: 13,486,398 km (0.048 R)
• M20: 15,997,847 km (0.108 R)
• M21: 17,397,784 km (0.101 R)
• M22: 20,516,002 km (0.039 R)
• M23: 20,901,216 km (0.119 R)
• M24: 23,231,203 km (0.104 R)
• M25: 23,903,197 km (0.056 R)
• M26: 25,374,192 km (0.097 R)
• M27: 27,366,238 km (0.102 R)
• M28: 27,833,133 km (0.065 R)
• M29: 30,847,081 km (0.076 R)
• M30: 32,693,418 km (0.101 R)
• M31: 36,830,996 km (0.052 R)
• M32: 37,629,549 km (0.11 R)
• M33: 39,142,881 km (0.108 R)
• M34: 39,735,588 km (0.112 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.4

Radius: 10.8

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 5.02 AU - 6.9 AU

Year: 9395 Days

Day: 14.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 43,129,885 km

• M1: 134,339 km (0.104 R)
• M2: 493,972 km (0.099 R)
• M3: 1,736,382 km (0.037 R)
• M4: 2,438,146 km (0.065 R)
• M5: 3,722,444 km (0.104 R)
• M6: 4,104,816 km (0.116 R)
• M7: 4,771,424 km (0.097 R)
• M8: 5,476,628 km (0.057 R)
• M9: 8,919,923 km (0.054 R)
• M10: 9,941,526 km (0.078 R)
• M11: 14,881,847 km (0.087 R)
• M12: 15,784,520 km (0.099 R)
• M13: 17,984,357 km (0.068 R)
• M14: 18,711,851 km (0.104 R)
• M15: 20,225,632 km (0.094 R)
• M16: 20,695,369 km (0.035 R)
• M17: 21,172,138 km (0.11 R)
• M18: 25,891,951 km (0.096 R)
• M19: 28,058,277 km (0.118 R)
• M20: 28,839,328 km (0.08 R)
• M21: 30,038,056 km (0.117 R)
• M22: 30,649,612 km (0.079 R)
• M23: 31,062,053 km (0.094 R)
• M24: 33,071,601 km (0.11 R)
• M25: 36,303,514 km (0.083 R)
• M26: 38,891,706 km (0.099 R)
• M27: 39,985,117 km (0.085 R)
• M28: 41,852,847 km (0.119 R)
• M29: 42,233,274 km (0.047 R)
• M30: 42,615,945 km (0.092 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 18,988 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit