🌌 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: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.9

Radius: 11.8

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.55 AU - 0.85 AU

Year: 404 Days

Day: 10.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 63,187,735 km

• M1: 147,204 km (0.084 R)
• M2: 635,342 km (0.093 R)
• M3: 1,088,474 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399

Radius: 12.5

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.87 AU - 1.31 AU

Year: 786 Days

Day: 5.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,187,735 km

• M1: 155,432 km (0.104 R)
• M2: 718,967 km (0.109 R)
• M3: 1,249,741 km (0.076 R)
• M4: 1,770,790 km (0.09 R)
• M5: 2,307,248 km (0.093 R)
• M6: 3,513,755 km (0.093 R)
• M7: 6,454,400 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.3

Radius: 13.9

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.06 AU - 1.48 AU

Year: 988 Days

Day: 13.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,187,735 km

• M1: 173,534 km (0.087 R)
• M2: 701,614 km (0.079 R)
• M3: 1,654,403 km (0.12 R)
• M4: 2,512,496 km (0.088 R)
• M5: 2,994,052 km (0.079 R)
• M6: 3,855,885 km (0.06 R)
• M7: 4,289,270 km (0.111 R)
• M8: 6,011,142 km (0.042 R)
• M9: 7,267,614 km (0.103 R)
• M10: 7,715,361 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.7

Radius: 14.7

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.8 AU - 2.08 AU

Year: 1865 Days

Day: 7.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,187,735 km

• M1: 185,352 km (0.092 R)
• M2: 790,475 km (0.038 R)
• M3: 1,369,569 km (0.106 R)
• M4: 2,233,496 km (0.05 R)
• M5: 3,647,346 km (0.073 R)
• M6: 4,125,311 km (0.117 R)
• M7: 4,982,357 km (0.116 R)
• M8: 5,486,502 km (0.115 R)
• M9: 6,235,538 km (0.115 R)
• M10: 6,974,851 km (0.115 R)
• M11: 8,022,934 km (0.095 R)
• M12: 8,599,933 km (0.117 R)
• M13: 9,422,721 km (0.081 R)
• M14: 10,566,995 km (0.076 R)
• M15: 12,060,132 km (0.095 R)
• M16: 12,974,474 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.8

Radius: 10.9

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 4.02 AU - 4.8 AU

Year: 6392 Days

Day: 9.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,187,735 km

• M1: 147,354 km (0.108 R)
• M2: 607,517 km (0.116 R)
• M3: 1,122,283 km (0.109 R)
• M4: 1,808,189 km (0.065 R)
• M5: 2,303,508 km (0.058 R)
• M6: 3,331,245 km (0.12 R)
• M7: 3,874,435 km (0.065 R)
• M8: 4,896,488 km (0.04 R)
• M9: 5,576,709 km (0.076 R)
• M10: 6,687,174 km (0.084 R)
• M11: 7,759,791 km (0.049 R)
• M12: 9,442,618 km (0.04 R)
• M13: 10,208,260 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.5

Radius: 9.3

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.33 AU - 4.79 AU

Year: 6721 Days

Day: 14.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 63,187,735 km

• M1: 115,789 km (0.085 R)
• M2: 425,905 km (0.106 R)
• M3: 778,358 km (0.065 R)
• M4: 1,078,451 km (0.112 R)
• M5: 1,421,778 km (0.05 R)
• M6: 1,852,770 km (0.108 R)
• M7: 2,219,434 km (0.091 R)
• M8: 2,784,166 km (0.043 R)
• M9: 3,183,742 km (0.032 R)
• M10: 3,598,577 km (0.058 R)
• M11: 3,927,094 km (0.092 R)
• M12: 4,327,118 km (0.103 R)
• M13: 4,949,745 km (0.08 R)
• M14: 5,447,457 km (0.117 R)
• M15: 5,914,053 km (0.095 R)
• M16: 7,326,406 km (0.109 R)
• M17: 8,131,093 km (0.063 R)
• M18: 9,121,581 km (0.088 R)
• M19: 9,735,530 km (0.05 R)
• M20: 10,052,528 km (0.103 R)
• M21: 10,948,320 km (0.113 R)
• M22: 14,012,085 km (0.11 R)
• M23: 15,068,545 km (0.118 R)
• M24: 16,177,364 km (0.03 R)
• M25: 16,881,073 km (0.102 R)
• M26: 22,234,732 km (0.082 R)
• M27: 24,161,702 km (0.073 R)
• M28: 25,936,980 km (0.114 R)
• M29: 34,746,349 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 330.3

Radius: 5

Gravity: 13.21 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.45 AU - 7.99 AU

Year: 12024 Days

Day: 15.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 63,187,735 km

• M1: 62,382 km (0.039 R)
• M2: 252,820 km (0.064 R)
• M3: 879,037 km (0.103 R)
• M4: 1,140,684 km (0.079 R)
• M5: 1,326,484 km (0.063 R)
• M6: 2,579,666 km (0.102 R)
• M7: 2,860,610 km (0.05 R)
• M8: 3,051,946 km (0.092 R)
• M9: 3,507,621 km (0.117 R)
• M10: 3,702,099 km (0.074 R)
• M11: 3,929,637 km (0.094 R)
• M12: 4,785,187 km (0.084 R)
• M13: 6,168,369 km (0.057 R)
• M14: 6,597,565 km (0.113 R)
• M15: 8,257,503 km (0.077 R)
• M16: 9,553,918 km (0.091 R)
• M17: 10,473,497 km (0.117 R)
• M18: 11,397,563 km (0.04 R)
• M19: 13,883,430 km (0.094 R)
• M20: 15,903,002 km (0.063 R)
• M21: 19,437,700 km (0.102 R)
• M22: 19,741,234 km (0.089 R)
• M23: 22,700,430 km (0.091 R)
• M24: 26,310,376 km (0.101 R)
• M25: 26,962,623 km (0.08 R)
• M26: 29,280,941 km (0.086 R)
• M27: 31,001,316 km (0.105 R)
• M28: 31,311,732 km (0.111 R)
• M29: 32,149,630 km (0.092 R)
• M30: 38,438,126 km (0.046 R)
• M31: 39,884,737 km (0.068 R)
• M32: 42,121,824 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 427.6

Radius: 6.8

Gravity: 9.25 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 7.54 AU - 7.84 AU

Year: 14720 Days

Day: 23.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 63,187,735 km

• M1: 84,672 km (0.11 R)
• M2: 318,045 km (0.086 R)
• M3: 679,474 km (0.101 R)
• M4: 1,221,616 km (0.056 R)
• M5: 1,600,996 km (0.101 R)
• M6: 1,935,048 km (0.111 R)
• M7: 3,223,984 km (0.078 R)
• M8: 3,812,801 km (0.034 R)
• M9: 4,321,882 km (0.047 R)
• M10: 4,811,516 km (0.116 R)
• M11: 5,509,540 km (0.119 R)
• M12: 6,621,052 km (0.076 R)
• M13: 7,699,204 km (0.116 R)
• M14: 7,963,843 km (0.112 R)
• M15: 11,573,490 km (0.049 R)
• M16: 12,156,622 km (0.04 R)
• M17: 13,958,379 km (0.107 R)
• M18: 14,619,003 km (0.065 R)
• M19: 18,393,657 km (0.075 R)
• M20: 19,026,755 km (0.081 R)
• M21: 22,322,845 km (0.05 R)
• M22: 23,501,077 km (0.088 R)
• M23: 23,778,731 km (0.102 R)
• M24: 24,720,001 km (0.078 R)
• M25: 26,576,810 km (0.113 R)
• M26: 30,896,299 km (0.105 R)
• M27: 33,396,378 km (0.072 R)
• M28: 37,018,591 km (0.102 R)
• M29: 38,027,031 km (0.088 R)
• M30: 44,323,904 km (0.028 R)
• M31: 49,138,113 km (0.115 R)
• M32: 50,202,203 km (0.067 R)
• M33: 50,662,964 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 462.5

Radius: 6.6

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 7.61 AU - 10.25 AU

Year: 18420 Days

Day: 18.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 63,187,735 km

• M1: 82,129 km (0.077 R)
• M2: 303,684 km (0.08 R)
• M3: 650,003 km (0.078 R)
• M4: 870,061 km (0.099 R)
• M5: 1,890,169 km (0.101 R)
• M6: 2,412,266 km (0.099 R)
• M7: 3,768,221 km (0.082 R)
• M8: 4,151,191 km (0.084 R)
• M9: 4,559,893 km (0.062 R)
• M10: 4,824,531 km (0.086 R)
• M11: 5,064,486 km (0.12 R)
• M12: 5,494,431 km (0.103 R)
• M13: 7,876,029 km (0.083 R)
• M14: 8,161,162 km (0.055 R)
• M15: 9,423,918 km (0.073 R)
• M16: 9,799,708 km (0.107 R)
• M17: 11,707,380 km (0.046 R)
• M18: 12,586,866 km (0.068 R)
• M19: 14,476,436 km (0.05 R)
• M20: 16,470,277 km (0.052 R)
• M21: 19,403,891 km (0.047 R)
• M22: 20,812,804 km (0.116 R)
• M23: 21,820,196 km (0.109 R)
• M24: 24,229,918 km (0.092 R)
• M25: 26,598,501 km (0.115 R)
• M26: 30,725,458 km (0.094 R)
• M27: 35,131,714 km (0.105 R)
• M28: 35,775,284 km (0.111 R)
• M29: 36,689,327 km (0.089 R)
• M30: 39,386,576 km (0.092 R)
• M31: 43,380,690 km (0.043 R)
• M32: 43,824,098 km (0.084 R)
• M33: 45,932,979 km (0.071 R)
• M34: 48,583,554 km (0.069 R)
• M35: 50,514,713 km (0.085 R)
• M36: 60,023,752 km (0.05 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: 259 - 10,977 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit