🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.53 AU - 0.67 AU

Year: 300 Days

Day: 38.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 13.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.55 AU - 0.71 AU

Year: 323 Days

Day: 21.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 81.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.3

Radius: 12.4

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.77 AU - 1.09 AU

Year: 579 Days

Day: 9.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,048,520 km

• M1: 154,235 km (0.069 R)
• M2: 616,942 km (0.11 R)
• M3: 1,199,476 km (0.056 R)
• M4: 1,704,668 km (0.084 R)
• M5: 2,322,058 km (0.044 R)
• M6: 3,462,144 km (0.095 R)
• M7: 3,856,484 km (0.067 R)
• M8: 4,295,852 km (0.114 R)
• M9: 4,960,815 km (0.097 R)
• M10: 5,482,014 km (0.085 R)
• M11: 5,983,915 km (0.082 R)
• M12: 6,399,797 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.9

Radius: 10.6

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.13 AU - 1.53 AU

Year: 990 Days

Day: 10.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,048,520 km

• M1: 131,796 km (0.059 R)
• M2: 701,016 km (0.112 R)
• M3: 1,098,796 km (0.083 R)
• M4: 1,501,065 km (0.115 R)
• M5: 2,406,282 km (0.038 R)
• M6: 3,448,979 km (0.043 R)
• M7: 4,019,695 km (0.114 R)
• M8: 4,975,625 km (0.081 R)
• M9: 5,879,496 km (0.041 R)
• M10: 6,589,487 km (0.115 R)
• M11: 7,287,959 km (0.099 R)
• M12: 7,843,416 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.6

Radius: 12

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.42 AU - 2.36 AU

Year: 1678 Days

Day: 5.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,048,520 km

• M1: 149,299 km (0.112 R)
• M2: 643,720 km (0.107 R)
• M3: 1,019,360 km (0.111 R)
• M4: 1,953,748 km (0.041 R)
• M5: 2,925,835 km (0.091 R)
• M6: 4,555,106 km (0.117 R)
• M7: 4,955,429 km (0.111 R)
• M8: 5,804,248 km (0.104 R)
• M9: 6,447,070 km (0.102 R)
• M10: 7,513,403 km (0.104 R)
• M11: 7,988,676 km (0.113 R)
• M12: 8,513,764 km (0.111 R)
• M13: 9,281,052 km (0.046 R)
• M14: 9,994,035 km (0.09 R)
• M15: 10,569,688 km (0.087 R)
• M16: 11,456,355 km (0.111 R)
• M17: 12,507,579 km (0.034 R)
• M18: 13,377,640 km (0.107 R)
• M19: 13,993,834 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.4

Radius: 8

Gravity: 13.99 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.98 AU - 4.68 AU

Year: 5818 Days

Day: 7.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 59,048,520 km

• M1: 107,710 km (0.082 R)
• M2: 427,252 km (0.04 R)
• M3: 703,409 km (0.065 R)
• M4: 1,338,303 km (0.096 R)
• M5: 1,701,676 km (0.086 R)
• M6: 2,004,911 km (0.12 R)
• M7: 2,310,390 km (0.119 R)
• M8: 3,440,751 km (0.079 R)
• M9: 3,833,146 km (0.045 R)
• M10: 6,060,958 km (0.086 R)
• M11: 6,326,344 km (0.081 R)
• M12: 9,120,833 km (0.051 R)
• M13: 9,918,937 km (0.09 R)
• M14: 10,762,819 km (0.096 R)
• M15: 12,117,278 km (0.061 R)
• M16: 13,136,039 km (0.099 R)
• M17: 15,837,627 km (0.108 R)
• M18: 18,539,664 km (0.078 R)
• M19: 19,890,084 km (0.064 R)
• M20: 21,304,981 km (0.091 R)
• M21: 23,105,990 km (0.069 R)
• M22: 23,510,502 km (0.11 R)
• M23: 26,125,174 km (0.106 R)
• M24: 29,114,887 km (0.104 R)
• M25: 29,872,600 km (0.061 R)
• M26: 30,643,329 km (0.088 R)
• M27: 32,729,770 km (0.078 R)
• M28: 33,445,746 km (0.067 R)
• M29: 34,381,630 km (0.098 R)
• M30: 36,305,458 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 367.9

Radius: 6.7

Gravity: 8.2 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.48 AU - 7.42 AU

Year: 10577 Days

Day: 22 Hours

Environment

Temp: -214 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,048,520 km

• M1: 211,531 km (0.088 R)
• M2: 473,328 km (0.044 R)
• M3: 869,014 km (0.081 R)
• M4: 1,935,348 km (0.078 R)
• M5: 2,947,377 km (0.104 R)
• M6: 3,545,170 km (0.083 R)
• M7: 4,547,177 km (0.115 R)
• M8: 4,802,989 km (0.088 R)
• M9: 6,653,365 km (0.116 R)
• M10: 9,937,637 km (0.057 R)
• M11: 10,664,383 km (0.112 R)
• M12: 12,387,003 km (0.043 R)
• M13: 14,775,333 km (0.092 R)
• M14: 15,592,586 km (0.069 R)
• M15: 25,400,073 km (0.12 R)
• M16: 25,846,323 km (0.074 R)
• M17: 28,538,187 km (0.068 R)
• M18: 29,902,370 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 407.5

Radius: 5.7

Gravity: 12.54 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 6.66 AU - 8.32 AU

Year: 13235 Days

Day: 22.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 59,048,520 km

• M1: 81,830 km (0.073 R)
• M2: 300,991 km (0.093 R)
• M3: 488,886 km (0.105 R)
• M4: 725,101 km (0.046 R)
• M5: 1,206,058 km (0.06 R)
• M6: 1,846,636 km (0.108 R)
• M7: 3,153,224 km (0.091 R)
• M8: 3,769,717 km (0.054 R)
• M9: 4,949,894 km (0.046 R)
• M10: 6,432,409 km (0.1 R)
• M11: 6,737,738 km (0.082 R)
• M12: 8,823,133 km (0.089 R)
• M13: 9,686,462 km (0.1 R)
• M14: 9,935,991 km (0.101 R)
• M15: 13,397,237 km (0.115 R)
• M16: 17,365,470 km (0.101 R)
• M17: 17,957,429 km (0.082 R)
• M18: 19,103,798 km (0.058 R)
• M19: 22,397,494 km (0.051 R)
• M20: 23,905,141 km (0.034 R)
• M21: 25,102,822 km (0.113 R)
• M22: 26,533,726 km (0.094 R)
• M23: 30,507,195 km (0.025 R)
• M24: 31,915,060 km (0.12 R)
• M25: 32,579,275 km (0.116 R)
• M26: 33,706,644 km (0.066 R)
• M27: 34,049,822 km (0.063 R)
• M28: 34,626,970 km (0.064 R)
• M29: 35,564,051 km (0.116 R)
• M30: 39,990,802 km (0.074 R)
• M31: 40,504,222 km (0.087 R)
• M32: 42,735,474 km (0.077 R)
• M33: 43,542,106 km (0.103 R)
• M34: 45,603,116 km (0.072 R)
• M35: 47,728,153 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 697

Radius: 7.2

Gravity: 13.45 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.15 AU - 9.07 AU

Year: 13555 Days

Day: 23.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,048,520 km

• M1: 196,572 km (0.093 R)
• M2: 456,872 km (0.066 R)
• M3: 1,125,874 km (0.109 R)
• M4: 2,151,068 km (0.031 R)
• M5: 2,386,535 km (0.108 R)
• M6: 2,980,139 km (0.111 R)
• M7: 4,364,817 km (0.111 R)
• M8: 7,327,603 km (0.093 R)
• M9: 8,284,431 km (0.084 R)
• M10: 13,275,614 km (0.047 R)
• M11: 14,005,502 km (0.106 R)
• M12: 15,690,573 km (0.107 R)
• M13: 18,874,614 km (0.046 R)
• M14: 19,373,971 km (0.08 R)
• M15: 25,463,652 km (0.104 R)
• M16: 27,853,927 km (0.111 R)
• M17: 36,425,735 km (0.085 R)
• M18: 42,216,669 km (0.098 R)
• M19: 46,752,775 km (0.113 R)
• M20: 53,071,939 km (0.085 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 476 - 18,150 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit