🌌 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 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.53 AU - 0.81 AU

Year: 354 Days

Day: 31.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 37 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.5

Radius: 10

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.73 AU - 0.75 AU

Year: 411 Days

Day: 5.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,505,895 km

• M1: 124,465 km (0.097 R)
• M2: 437,125 km (0.088 R)
• M3: 822,938 km (0.115 R)
• M4: 1,175,241 km (0.104 R)
• M5: 1,734,288 km (0.112 R)
• M6: 2,096,165 km (0.055 R)
• M7: 2,602,255 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.6

Radius: 8.6

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.55 AU - 2.09 AU

Year: 1585 Days

Day: 8.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,505,895 km

• M1: 107,112 km (0.077 R)
• M2: 611,107 km (0.089 R)
• M3: 957,875 km (0.054 R)
• M4: 1,377,048 km (0.11 R)
• M5: 1,783,655 km (0.101 R)
• M6: 2,064,899 km (0.12 R)
• M7: 2,731,508 km (0.078 R)
• M8: 3,647,196 km (0.103 R)
• M9: 5,052,967 km (0.04 R)
• M10: 6,048,242 km (0.118 R)
• M11: 6,375,562 km (0.11 R)
• M12: 7,696,661 km (0.05 R)
• M13: 10,600,056 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.4

Radius: 9.2

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.24 AU - 2.5 AU

Year: 2356 Days

Day: 7.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,505,895 km

• M1: 115,190 km (0.05 R)
• M2: 473,028 km (0.049 R)
• M3: 1,037,312 km (0.056 R)
• M4: 1,368,671 km (0.083 R)
• M5: 1,850,675 km (0.04 R)
• M6: 2,217,040 km (0.099 R)
• M7: 2,657,457 km (0.073 R)
• M8: 3,396,320 km (0.113 R)
• M9: 3,915,275 km (0.077 R)
• M10: 5,531,531 km (0.052 R)
• M11: 7,366,498 km (0.085 R)
• M12: 9,859,098 km (0.078 R)
• M13: 10,213,944 km (0.1 R)
• M14: 10,813,233 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.5

Radius: 9.9

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.05 AU - 3.47 AU

Year: 3801 Days

Day: 7.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,505,895 km

• M1: 126,410 km (0.095 R)
• M2: 460,013 km (0.099 R)
• M3: 1,149,061 km (0.074 R)
• M4: 2,342,553 km (0.106 R)
• M5: 2,753,947 km (0.078 R)
• M6: 3,249,266 km (0.098 R)
• M7: 4,156,278 km (0.108 R)
• M8: 8,194,373 km (0.086 R)
• M9: 9,111,258 km (0.112 R)
• M10: 11,875,229 km (0.049 R)
• M11: 16,752,718 km (0.084 R)
• M12: 17,878,442 km (0.071 R)
• M13: 19,783,570 km (0.031 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.8

Radius: 11.4

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.77 AU - 5.13 AU

Year: 7111 Days

Day: 13 Hours

Environment

Temp: -208 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,505,895 km

• M1: 141,819 km (0.119 R)
• M2: 606,320 km (0.119 R)
• M3: 982,559 km (0.086 R)
• M4: 1,605,185 km (0.119 R)
• M5: 2,362,599 km (0.081 R)
• M6: 2,912,970 km (0.077 R)
• M7: 3,308,357 km (0.116 R)
• M8: 4,358,534 km (0.079 R)
• M9: 5,644,627 km (0.105 R)
• M10: 6,043,156 km (0.119 R)
• M11: 7,017,038 km (0.045 R)
• M12: 7,895,028 km (0.068 R)
• M13: 8,635,088 km (0.107 R)
• M14: 11,425,388 km (0.054 R)
• M15: 12,594,794 km (0.119 R)
• M16: 15,528,259 km (0.078 R)
• M17: 18,193,195 km (0.075 R)
• M18: 19,125,639 km (0.111 R)
• M19: 19,785,066 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.7

Radius: 9

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 4.16 AU - 6.34 AU

Year: 7767 Days

Day: 6.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 65,505,895 km

• M1: 111,899 km (0.044 R)
• M2: 401,670 km (0.105 R)
• M3: 785,538 km (0.108 R)
• M4: 1,099,844 km (0.081 R)
• M5: 1,994,289 km (0.082 R)
• M6: 2,376,362 km (0.083 R)
• M7: 2,709,068 km (0.108 R)
• M8: 3,158,161 km (0.114 R)
• M9: 3,849,752 km (0.113 R)
• M10: 4,311,111 km (0.062 R)
• M11: 5,072,116 km (0.07 R)
• M12: 5,531,980 km (0.073 R)
• M13: 5,986,159 km (0.098 R)
• M14: 6,535,482 km (0.103 R)
• M15: 7,155,565 km (0.089 R)
• M16: 7,814,245 km (0.093 R)
• M17: 14,922,986 km (0.061 R)
• M18: 15,803,818 km (0.038 R)
• M19: 18,654,555 km (0.074 R)
• M20: 19,975,056 km (0.07 R)
• M21: 21,751,680 km (0.027 R)
• M22: 22,474,836 km (0.092 R)
• M23: 24,826,963 km (0.083 R)
• M24: 31,619,904 km (0.06 R)
• M25: 32,965,536 km (0.095 R)
• M26: 34,565,336 km (0.099 R)
• M27: 39,083,341 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 236.4

Radius: 3.3

Gravity: 21.71 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.33 AU - 6.97 AU

Year: 9848 Days

Day: 15.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 65,505,895 km

• M1: 41,139 km (0.066 R)
• M2: 210,185 km (0.099 R)
• M3: 429,795 km (0.101 R)
• M4: 1,079,947 km (0.047 R)
• M5: 1,370,616 km (0.1 R)
• M6: 1,908,420 km (0.113 R)
• M7: 2,105,141 km (0.079 R)
• M8: 2,365,591 km (0.109 R)
• M9: 2,646,985 km (0.073 R)
• M10: 3,049,702 km (0.071 R)
• M11: 3,739,947 km (0.095 R)
• M12: 3,975,414 km (0.072 R)
• M13: 4,502,148 km (0.057 R)
• M14: 4,768,731 km (0.109 R)
• M15: 5,073,911 km (0.119 R)
• M16: 6,035,975 km (0.06 R)
• M17: 7,474,658 km (0.113 R)
• M18: 7,734,808 km (0.083 R)
• M19: 9,126,966 km (0.119 R)
• M20: 9,948,558 km (0.091 R)
• M21: 11,103,004 km (0.039 R)
• M22: 11,295,686 km (0.117 R)
• M23: 11,588,898 km (0.087 R)
• M24: 12,292,607 km (0.092 R)
• M25: 12,865,267 km (0.068 R)
• M26: 14,119,496 km (0.093 R)
• M27: 16,180,954 km (0.098 R)
• M28: 16,995,216 km (0.119 R)
• M29: 17,122,823 km (0.113 R)
• M30: 20,815,646 km (0.054 R)
• M31: 21,182,311 km (0.114 R)
• M32: 22,537,667 km (0.104 R)
• M33: 22,846,587 km (0.097 R)
• M34: 24,110,390 km (0.051 R)
• M35: 25,005,733 km (0.073 R)
• M36: 25,253,766 km (0.068 R)
• M37: 25,670,695 km (0.107 R)
• M38: 25,838,843 km (0.036 R)
• M39: 29,081,826 km (0.103 R)
• M40: 32,783,027 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 925.8

Radius: 4.6

Gravity: 43.75 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 6.67 AU - 8.69 AU

Year: 13742 Days

Day: 17.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 154.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 65,505,895 km

• M1: 57,595 km (0.093 R)
• M2: 384,467 km (0.092 R)
• M3: 620,981 km (0.069 R)
• M4: 1,155,195 km (0.098 R)
• M5: 1,653,505 km (0.116 R)
• M6: 1,988,156 km (0.089 R)
• M7: 2,324,751 km (0.115 R)
• M8: 2,791,795 km (0.103 R)
• M9: 3,085,456 km (0.11 R)
• M10: 3,620,268 km (0.054 R)
• M11: 3,850,649 km (0.117 R)
• M12: 4,768,881 km (0.115 R)
• M13: 4,940,918 km (0.094 R)
• M14: 5,224,556 km (0.1 R)
• M15: 6,895,714 km (0.108 R)
• M16: 8,043,578 km (0.088 R)
• M17: 9,206,851 km (0.11 R)
• M18: 12,564,576 km (0.062 R)
• M19: 12,826,970 km (0.114 R)
• M20: 14,622,444 km (0.113 R)
• M21: 16,422,405 km (0.118 R)
• M22: 17,294,711 km (0.068 R)
• M23: 19,918,508 km (0.062 R)
• M24: 22,602,443 km (0.057 R)
• M25: 25,309,117 km (0.094 R)
• M26: 28,000,981 km (0.112 R)
• M27: 36,941,399 km (0.053 R)
• M28: 37,344,864 km (0.114 R)
• M29: 39,126,575 km (0.054 R)
• M30: 40,964,385 km (0.087 R)
• M31: 41,396,424 km (0.105 R)
• M32: 43,902,786 km (0.046 R)
• M33: 48,408,225 km (0.088 R)
• M34: 48,891,277 km (0.077 R)
• M35: 49,703,294 km (0.071 R)
• M36: 52,701,385 km (0.109 R)
• M37: 54,244,487 km (0.102 R)
• M38: 59,421,770 km (0.042 R)
• M39: 61,657,062 km (0.046 R)
• M40: 62,034,946 km (0.091 R)
• M41: 62,986,388 km (0.044 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: 485 - 20,205 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit