🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.5

Radius: 9.4

Gravity: 9.32 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.59 AU - 0.77 AU

Year: 357 Days

Day: 12.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,000,795 km

• M1: 116,986 km (0.048 R)
• M2: 413,489 km (0.096 R)
• M3: 710,889 km (0.102 R)
• M4: 1,117,646 km (0.064 R)
• M5: 1,455,438 km (0.114 R)
• M6: 2,227,811 km (0.073 R)
• M7: 3,206,930 km (0.111 R)
• M8: 3,862,767 km (0.079 R)
• M9: 4,407,901 km (0.079 R)
• M10: 4,928,053 km (0.086 R)
• M11: 5,440,426 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.2

Radius: 14.8

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.86 AU - 1.28 AU

Year: 704 Days

Day: 6.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,000,795 km

• M1: 184,155 km (0.052 R)
• M2: 731,384 km (0.087 R)
• M3: 1,237,922 km (0.072 R)
• M4: 1,767,200 km (0.109 R)
• M5: 2,706,973 km (0.099 R)
• M6: 3,242,683 km (0.054 R)
• M7: 4,030,316 km (0.05 R)
• M8: 5,074,210 km (0.047 R)
• M9: 5,823,097 km (0.112 R)
• M10: 6,867,141 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.6

Radius: 11.3

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.24 AU - 1.64 AU

Year: 1099 Days

Day: 13 Hours

Environment

Temp: -185 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,000,795 km

• M1: 140,622 km (0.079 R)
• M2: 501,452 km (0.09 R)
• M3: 1,195,736 km (0.04 R)
• M4: 1,570,927 km (0.11 R)
• M5: 2,568,895 km (0.041 R)
• M6: 3,481,442 km (0.11 R)
• M7: 3,931,432 km (0.088 R)
• M8: 4,616,141 km (0.072 R)
• M9: 5,643,879 km (0.099 R)
• M10: 6,245,262 km (0.075 R)
• M11: 7,910,885 km (0.11 R)
• M12: 8,444,650 km (0.115 R)
• M13: 10,473,347 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.4

Radius: 12.1

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.68 AU - 3.68 AU

Year: 4489 Days

Day: 6.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,000,795 km

• M1: 150,495 km (0.098 R)
• M2: 752,776 km (0.068 R)
• M3: 1,558,660 km (0.097 R)
• M4: 2,059,963 km (0.03 R)
• M5: 2,468,963 km (0.094 R)
• M6: 3,080,819 km (0.097 R)
• M7: 4,128,901 km (0.083 R)
• M8: 5,047,582 km (0.072 R)
• M9: 5,456,882 km (0.093 R)
• M10: 6,499,579 km (0.1 R)
• M11: 7,018,534 km (0.12 R)
• M12: 8,704,801 km (0.114 R)
• M13: 9,175,585 km (0.074 R)
• M14: 10,040,411 km (0.03 R)
• M15: 11,323,063 km (0.072 R)
• M16: 12,220,949 km (0.115 R)
• M17: 15,653,921 km (0.068 R)
• M18: 18,697,789 km (0.088 R)
• M19: 19,884,100 km (0.063 R)
• M20: 20,358,774 km (0.113 R)
• M21: 25,930,547 km (0.044 R)
• M22: 27,740,083 km (0.102 R)
• M23: 28,504,079 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.9

Radius: 9.2

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.48 AU - 4.3 AU

Year: 4878 Days

Day: 7.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 93.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,000,795 km

• M1: 116,686 km (0.086 R)
• M2: 806,333 km (0.103 R)
• M3: 1,488,648 km (0.112 R)
• M4: 2,503,670 km (0.087 R)
• M5: 2,910,875 km (0.071 R)
• M6: 3,332,592 km (0.108 R)
• M7: 4,458,615 km (0.078 R)
• M8: 5,098,894 km (0.031 R)
• M9: 6,240,326 km (0.073 R)
• M10: 6,538,923 km (0.114 R)
• M11: 7,065,956 km (0.095 R)
• M12: 10,745,615 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.8

Radius: 12.5

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.3 AU - 5.1 AU

Year: 5473 Days

Day: 7.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,000,795 km

• M1: 155,582 km (0.11 R)
• M2: 853,755 km (0.109 R)
• M3: 1,547,590 km (0.092 R)
• M4: 2,237,386 km (0.034 R)
• M5: 2,939,748 km (0.12 R)
• M6: 4,425,853 km (0.084 R)
• M7: 5,090,516 km (0.082 R)
• M8: 6,620,005 km (0.106 R)
• M9: 7,121,457 km (0.104 R)
• M10: 7,712,069 km (0.091 R)
• M11: 8,850,509 km (0.077 R)
• M12: 9,314,263 km (0.063 R)
• M13: 9,907,418 km (0.112 R)
• M14: 17,192,834 km (0.088 R)
• M15: 19,128,481 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.9

Radius: 9.6

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 5.72 AU - 5.78 AU

Year: 8767 Days

Day: 9.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,000,795 km

• M1: 119,379 km (0.041 R)
• M2: 452,384 km (0.093 R)
• M3: 1,082,789 km (0.079 R)
• M4: 1,486,255 km (0.036 R)
• M5: 2,353,623 km (0.102 R)
• M6: 2,722,083 km (0.097 R)
• M7: 3,958,958 km (0.075 R)
• M8: 4,284,932 km (0.104 R)
• M9: 5,806,641 km (0.109 R)
• M10: 6,192,604 km (0.113 R)
• M11: 7,134,173 km (0.109 R)
• M12: 9,633,953 km (0.08 R)
• M13: 11,648,139 km (0.104 R)
• M14: 16,840,681 km (0.077 R)
• M15: 19,429,921 km (0.108 R)
• M16: 20,136,322 km (0.106 R)
• M17: 21,104,669 km (0.087 R)
• M18: 22,787,196 km (0.093 R)
• M19: 33,779,050 km (0.062 R)
• M20: 35,492,244 km (0.064 R)
• M21: 36,193,410 km (0.107 R)
• M22: 37,382,563 km (0.114 R)
• M23: 42,662,620 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452.2

Radius: 4.6

Gravity: 21.37 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.93 AU - 8.81 AU

Year: 12721 Days

Day: 18 Hours

Environment

Temp: -229 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 49,000,795 km

• M1: 57,146 km (0.114 R)
• M2: 219,161 km (0.067 R)
• M3: 425,756 km (0.101 R)
• M4: 592,707 km (0.115 R)
• M5: 840,441 km (0.082 R)
• M6: 1,097,450 km (0.087 R)
• M7: 1,913,806 km (0.049 R)
• M8: 2,155,705 km (0.063 R)
• M9: 2,476,593 km (0.118 R)
• M10: 2,658,953 km (0.086 R)
• M11: 3,050,749 km (0.118 R)
• M12: 4,370,203 km (0.086 R)
• M13: 4,667,454 km (0.112 R)
• M14: 5,138,687 km (0.084 R)
• M15: 5,503,855 km (0.111 R)
• M16: 6,511,547 km (0.118 R)
• M17: 7,058,925 km (0.071 R)
• M18: 8,067,664 km (0.078 R)
• M19: 8,560,738 km (0.089 R)
• M20: 8,931,741 km (0.054 R)
• M21: 9,459,223 km (0.074 R)
• M22: 12,006,276 km (0.111 R)
• M23: 14,777,577 km (0.099 R)
• M24: 17,207,196 km (0.104 R)
• M25: 19,570,393 km (0.104 R)
• M26: 21,797,756 km (0.088 R)
• M27: 22,663,778 km (0.09 R)
• M28: 23,642,597 km (0.098 R)
• M29: 25,210,383 km (0.091 R)
• M30: 28,962,746 km (0.117 R)
• M31: 30,541,004 km (0.029 R)
• M32: 39,679,788 km (0.117 R)
• M33: 40,320,964 km (0.1 R)
• M34: 41,755,758 km (0.109 R)
• M35: 45,841,126 km (0.115 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 10,502 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit