🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.7

Radius: 9.6

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.45 AU - 0.57 AU

Year: 251 Days

Day: 9.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,454,958 km

• M1: 119,379 km (0.081 R)
• M2: 454,927 km (0.107 R)
• M3: 794,664 km (0.098 R)
• M4: 1,097,600 km (0.119 R)
• M5: 1,550,732 km (0.086 R)
• M6: 1,853,518 km (0.115 R)
• M7: 2,342,104 km (0.112 R)
• M8: 2,686,778 km (0.081 R)
• M9: 3,020,381 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.5

Radius: 10.6

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.51 AU - 0.55 AU

Year: 266 Days

Day: 14.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 61,454,958 km

• M1: 131,796 km (0.081 R)
• M2: 475,572 km (0.101 R)
• M3: 836,402 km (0.042 R)
• M4: 1,435,392 km (0.103 R)
• M5: 1,922,033 km (0.117 R)
• M6: 2,364,095 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.1

Radius: 9.1

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.05 AU - 1.63 AU

Year: 1071 Days

Day: 8.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,454,958 km

• M1: 123,119 km (0.055 R)
• M2: 542,891 km (0.084 R)
• M3: 833,859 km (0.091 R)
• M4: 1,197,381 km (0.079 R)
• M5: 1,506,750 km (0.118 R)
• M6: 2,235,291 km (0.053 R)
• M7: 2,555,580 km (0.087 R)
• M8: 3,158,310 km (0.061 R)
• M9: 3,602,018 km (0.104 R)
• M10: 3,934,274 km (0.111 R)
• M11: 4,676,280 km (0.08 R)
• M12: 5,237,272 km (0.076 R)
• M13: 6,042,258 km (0.07 R)
• M14: 6,340,855 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.8

Radius: 11.8

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.5 AU - 1.86 AU

Year: 1503 Days

Day: 12.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,454,958 km

• M1: 146,756 km (0.116 R)
• M2: 700,567 km (0.09 R)
• M3: 1,091,765 km (0.095 R)
• M4: 1,561,951 km (0.076 R)
• M5: 2,001,919 km (0.101 R)
• M6: 2,458,791 km (0.08 R)
• M7: 3,060,772 km (0.03 R)
• M8: 3,431,775 km (0.054 R)
• M9: 4,730,883 km (0.109 R)
• M10: 5,666,019 km (0.12 R)
• M11: 6,654,712 km (0.112 R)
• M12: 7,803,474 km (0.049 R)
• M13: 8,425,352 km (0.09 R)
• M14: 8,814,157 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.3

Radius: 12

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.13 AU - 2.75 AU

Year: 2631 Days

Day: 6.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,454,958 km

• M1: 149,299 km (0.101 R)
• M2: 604,675 km (0.081 R)
• M3: 1,012,329 km (0.11 R)
• M4: 1,420,581 km (0.064 R)
• M5: 1,895,704 km (0.101 R)
• M6: 2,343,600 km (0.117 R)
• M7: 2,953,212 km (0.07 R)
• M8: 3,439,405 km (0.05 R)
• M9: 4,170,789 km (0.059 R)
• M10: 5,722,268 km (0.103 R)
• M11: 6,669,073 km (0.097 R)
• M12: 8,422,959 km (0.086 R)
• M13: 9,103,928 km (0.102 R)
• M14: 10,873,671 km (0.034 R)
• M15: 11,330,393 km (0.034 R)
• M16: 11,720,993 km (0.108 R)
• M17: 12,862,275 km (0.062 R)
• M18: 13,503,601 km (0.069 R)
• M19: 14,255,929 km (0.088 R)
• M20: 15,796,189 km (0.077 R)
• M21: 16,581,578 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.5

Radius: 8.5

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 5.23 AU - 5.57 AU

Year: 8662 Days

Day: 8.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,454,958 km

• M1: 105,766 km (0.089 R)
• M2: 450,738 km (0.084 R)
• M3: 1,307,485 km (0.078 R)
• M4: 1,634,656 km (0.108 R)
• M5: 2,457,145 km (0.063 R)
• M6: 2,810,196 km (0.072 R)
• M7: 4,446,647 km (0.111 R)
• M8: 6,805,357 km (0.09 R)
• M9: 8,524,835 km (0.114 R)
• M10: 11,839,175 km (0.034 R)
• M11: 15,217,095 km (0.093 R)
• M12: 18,449,606 km (0.085 R)
• M13: 24,674,074 km (0.084 R)
• M14: 25,900,927 km (0.057 R)
• M15: 26,318,753 km (0.034 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 604.1

Radius: 7.8

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 6.58 AU - 8.12 AU

Year: 13754 Days

Day: 21.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 61,454,958 km

• M1: 96,939 km (0.116 R)
• M2: 356,641 km (0.094 R)
• M3: 685,009 km (0.095 R)
• M4: 931,696 km (0.098 R)
• M5: 1,201,720 km (0.06 R)
• M6: 1,755,232 km (0.094 R)
• M7: 2,045,302 km (0.083 R)
• M8: 2,427,525 km (0.109 R)
• M9: 3,621,316 km (0.096 R)
• M10: 3,895,080 km (0.055 R)
• M11: 4,931,494 km (0.117 R)
• M12: 5,268,687 km (0.087 R)
• M13: 6,140,993 km (0.05 R)
• M14: 7,319,674 km (0.078 R)
• M15: 7,625,452 km (0.087 R)
• M16: 8,169,390 km (0.109 R)
• M17: 10,171,010 km (0.035 R)
• M18: 12,978,962 km (0.086 R)
• M19: 13,298,353 km (0.076 R)
• M20: 14,905,034 km (0.119 R)
• M21: 15,755,049 km (0.064 R)
• M22: 17,473,929 km (0.071 R)
• M23: 19,314,282 km (0.076 R)
• M24: 19,730,762 km (0.058 R)
• M25: 23,281,917 km (0.074 R)
• M26: 24,521,933 km (0.109 R)
• M27: 30,146,514 km (0.084 R)
• M28: 31,733,748 km (0.107 R)
• M29: 32,430,724 km (0.037 R)
• M30: 34,705,360 km (0.088 R)
• M31: 35,569,437 km (0.093 R)
• M32: 49,373,281 km (0.087 R)
• M33: 52,861,604 km (0.04 R)
• M34: 54,169,688 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 449.2

Radius: 6.5

Gravity: 10.63 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 7.81 AU - 9.73 AU

Year: 17927 Days

Day: 22.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 61,454,958 km

• M1: 81,232 km (0.093 R)
• M2: 346,618 km (0.068 R)
• M3: 571,763 km (0.077 R)
• M4: 897,886 km (0.115 R)
• M5: 1,210,097 km (0.108 R)
• M6: 1,909,168 km (0.106 R)
• M7: 2,712,209 km (0.044 R)
• M8: 3,422,051 km (0.067 R)
• M9: 3,892,088 km (0.028 R)
• M10: 4,127,854 km (0.092 R)
• M11: 5,132,703 km (0.106 R)
• M12: 6,331,580 km (0.098 R)
• M13: 7,345,704 km (0.108 R)
• M14: 7,660,907 km (0.086 R)
• M15: 7,938,261 km (0.061 R)
• M16: 9,531,928 km (0.105 R)
• M17: 10,070,779 km (0.107 R)
• M18: 10,460,033 km (0.076 R)
• M19: 13,074,256 km (0.077 R)
• M20: 13,537,560 km (0.091 R)
• M21: 13,943,270 km (0.046 R)
• M22: 14,356,908 km (0.118 R)
• M23: 18,457,385 km (0.056 R)
• M24: 20,330,500 km (0.081 R)
• M25: 23,566,153 km (0.116 R)
• M26: 26,599,399 km (0.103 R)
• M27: 35,555,674 km (0.096 R)
• M28: 37,639,273 km (0.094 R)
• M29: 37,905,408 km (0.086 R)
• M30: 38,441,267 km (0.119 R)
• M31: 41,337,781 km (0.104 R)
• M32: 43,347,629 km (0.067 R)
• M33: 43,786,698 km (0.084 R)
• M34: 48,498,134 km (0.103 R)
• M35: 52,535,481 km (0.109 R)
• M36: 58,200,004 km (0.105 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 18,985 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit