🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.49

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.76 AU - 0.84 AU

Year: 254 Days

Day: 26.3 Hours

Environment

Temp: 199 °C

Axial Tilt: 39.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.76 AU - 1.26 AU

Year: 360 Days

Day: 25.9 Hours

Environment

Temp: 133 °C

Axial Tilt: 15.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 63,526,561 km

• M1: 321,037 km (0.114 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.96 AU - 1.24 AU

Year: 409 Days

Day: 28.6 Hours

Environment

Temp: 25 °C

Axial Tilt: 9.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 63,526,561 km

• M1: 92,451 km (0.101 R)
• M2: 277,504 km (0.12 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.04 AU - 1.38 AU

Year: 472 Days

Day: 12.1 Hours

Environment

Temp: 17 °C

Axial Tilt: 32.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.63 AU - 1.75 AU

Year: 779 Days

Day: 22 Hours

Environment

Temp: -43 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.48 AU - 2.24 AU

Year: 900 Days

Day: 39.6 Hours

Environment

Temp: -51 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.17 AU - 4.51 AU

Year: 3208 Days

Day: 26.1 Hours

Environment

Temp: -132 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.87 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.3

Radius: 10.6

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 7.29 AU - 11.51 AU

Year: 10224 Days

Day: 10.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 63,526,561 km

• M1: 135,685 km (0.115 R)
• M2: 225,743 km (0.039 R)
• M3: 470,635 km (0.086 R)
• M4: 723,455 km (0.06 R)
• M5: 850,015 km (0.086 R)
• M6: 916,287 km (0.07 R)
• M7: 1,019,210 km (0.065 R)
• M8: 1,352,514 km (0.092 R)
• M9: 1,511,537 km (0.091 R)
• M10: 1,676,992 km (0.117 R)
• M11: 1,783,506 km (0.064 R)
• M12: 1,981,125 km (0.105 R)
• M13: 2,470,310 km (0.103 R)
• M14: 2,641,749 km (0.061 R)
• M15: 2,716,398 km (0.109 R)
• M16: 2,996,296 km (0.051 R)
• M17: 3,393,179 km (0.073 R)
• M18: 3,501,937 km (0.102 R)
• M19: 3,835,091 km (0.076 R)
• M20: 4,295,404 km (0.109 R)
• M21: 4,773,219 km (0.117 R)
• M22: 5,521,657 km (0.105 R)
• M23: 7,371,435 km (0.103 R)
• M24: 7,655,372 km (0.115 R)
• M25: 8,677,125 km (0.082 R)
• M26: 9,128,163 km (0.1 R)
• M27: 9,242,156 km (0.057 R)
• M28: 9,702,619 km (0.119 R)
• M29: 10,013,932 km (0.113 R)
• M30: 10,368,030 km (0.037 R)
• M31: 10,566,546 km (0.04 R)
• M32: 10,806,352 km (0.109 R)
• M33: 11,129,034 km (0.091 R)
• M34: 11,413,869 km (0.108 R)
• M35: 11,536,838 km (0.049 R)
• M36: 11,866,552 km (0.059 R)
• M37: 12,493,217 km (0.103 R)
• M38: 12,789,421 km (0.111 R)
• M39: 12,874,393 km (0.076 R)
• M40: 13,475,028 km (0.102 R)
• M41: 13,953,442 km (0.042 R)
• M42: 14,040,957 km (0.091 R)
• M43: 14,481,523 km (0.088 R)
• M44: 17,690,846 km (0.091 R)
• M45: 17,975,979 km (0.118 R)
• M46: 18,118,995 km (0.075 R)
• M47: 18,695,096 km (0.036 R)
• M48: 18,791,587 km (0.07 R)
• M49: 21,109,157 km (0.093 R)
• M50: 21,411,494 km (0.084 R)
• M51: 21,563,187 km (0.093 R)
• M52: 22,583,594 km (0.1 R)
• M53: 23,567,649 km (0.105 R)
• M54: 24,301,576 km (0.109 R)
• M55: 25,577,197 km (0.114 R)
• M56: 25,899,580 km (0.116 R)
• M57: 26,331,469 km (0.113 R)
• M58: 26,874,659 km (0.11 R)
• M59: 27,421,439 km (0.087 R)
• M60: 27,806,504 km (0.102 R)
• M61: 28,304,067 km (0.119 R)
• M62: 28,581,870 km (0.058 R)
• M63: 29,084,070 km (0.063 R)
• M64: 29,701,909 km (0.08 R)
• M65: 30,893,307 km (0.097 R)
• M66: 31,753,794 km (0.115 R)
• M67: 32,100,262 km (0.032 R)
• M68: 33,264,134 km (0.11 R)
• M69: 33,381,269 km (0.075 R)
• M70: 33,733,572 km (0.076 R)
• M71: 34,264,196 km (0.096 R)
• M72: 34,501,009 km (0.072 R)
• M73: 34,916,592 km (0.117 R)
• M74: 35,872,821 km (0.079 R)
• M75: 36,053,087 km (0.07 R)
• M76: 36,233,651 km (0.119 R)
• M77: 37,811,161 km (0.07 R)
• M78: 38,116,939 km (0.09 R)
• M79: 39,348,878 km (0.071 R)
• M80: 39,534,828 km (0.028 R)
• M81: 39,969,709 km (0.086 R)
• M82: 40,156,706 km (0.117 R)
• M83: 42,168,049 km (0.113 R)
• M84: 42,485,346 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361.5

Radius: 3.4

Gravity: 31.27 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 11.56 AU - 18.82 AU

Year: 21003 Days

Day: 24.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 63,526,561 km

• M1: 44,281 km (0.039 R)
• M2: 147,504 km (0.06 R)
• M3: 208,539 km (0.106 R)
• M4: 235,467 km (0.108 R)
• M5: 512,522 km (0.12 R)
• M6: 773,421 km (0.079 R)
• M7: 1,699,581 km (0.105 R)
• M8: 2,202,230 km (0.091 R)
• M9: 2,453,704 km (0.091 R)
• M10: 2,648,331 km (0.101 R)
• M11: 2,681,243 km (0.112 R)
• M12: 3,121,509 km (0.108 R)
• M13: 3,403,501 km (0.104 R)
• M14: 3,804,423 km (0.078 R)
• M15: 5,093,807 km (0.102 R)
• M16: 5,217,226 km (0.045 R)
• M17: 5,341,542 km (0.117 R)
• M18: 5,593,165 km (0.04 R)
• M19: 6,953,758 km (0.09 R)
• M20: 7,740,942 km (0.114 R)
• M21: 8,555,951 km (0.097 R)
• M22: 10,630,724 km (0.086 R)
• M23: 11,159,104 km (0.111 R)
• M24: 12,077,036 km (0.101 R)
• M25: 13,526,939 km (0.047 R)
• M26: 15,030,846 km (0.079 R)
• M27: 15,982,438 km (0.112 R)
• M28: 16,708,736 km (0.087 R)
• M29: 18,760,770 km (0.037 R)
• M30: 18,951,208 km (0.087 R)
• M31: 19,334,178 km (0.093 R)
• M32: 19,526,561 km (0.072 R)
• M33: 21,022,390 km (0.061 R)
• M34: 21,286,281 km (0.096 R)
• M35: 21,817,353 km (0.104 R)
• M36: 23,164,033 km (0.093 R)
• M37: 23,368,384 km (0.042 R)
• M38: 24,053,692 km (0.095 R)
• M39: 25,024,283 km (0.115 R)
• M40: 26,575,164 km (0.09 R)
• M41: 27,290,242 km (0.091 R)
• M42: 27,506,112 km (0.111 R)
• M43: 27,866,942 km (0.108 R)
• M44: 28,302,122 km (0.092 R)
• M45: 29,252,517 km (0.057 R)
• M46: 29,768,630 km (0.091 R)
• M47: 29,842,681 km (0.079 R)
• M48: 30,735,182 km (0.052 R)
• M49: 31,485,565 km (0.061 R)
• M50: 32,775,098 km (0.115 R)
• M51: 33,004,432 km (0.105 R)
• M52: 33,464,744 km (0.081 R)
• M53: 34,081,686 km (0.083 R)
• M54: 34,159,028 km (0.108 R)
• M55: 34,469,294 km (0.107 R)
• M56: 34,546,935 km (0.112 R)
• M57: 34,702,517 km (0.105 R)
• M58: 34,936,189 km (0.079 R)
• M59: 35,014,279 km (0.12 R)
• M60: 35,170,459 km (0.075 R)
• M61: 35,405,328 km (0.117 R)
• M62: 35,719,184 km (0.111 R)
• M63: 36,587,002 km (0.103 R)
• M64: 38,022,244 km (0.049 R)
• M65: 38,746,597 km (0.042 R)
• M66: 38,989,095 km (0.071 R)
• M67: 39,070,027 km (0.103 R)
• M68: 39,151,109 km (0.066 R)
• M69: 39,313,273 km (0.074 R)
• M70: 40,618,515 km (0.078 R)
• M71: 40,864,902 km (0.111 R)
• M72: 41,029,310 km (0.107 R)
• M73: 42,769,882 km (0.076 R)
• M74: 42,936,833 km (0.05 R)
• M75: 43,775,179 km (0.071 R)
• M76: 43,859,253 km (0.11 R)
• M77: 44,703,584 km (0.09 R)
• M78: 44,873,078 km (0.047 R)
• M79: 46,322,382 km (0.068 R)
• M80: 46,665,560 km (0.065 R)
• M81: 47,440,926 km (0.111 R)
• M82: 47,700,328 km (0.101 R)
• M83: 48,133,713 km (0.12 R)
• M84: 49,266,618 km (0.095 R)
• M85: 50,761,250 km (0.042 R)
• M86: 52,896,610 km (0.071 R)
• M87: 53,705,037 km (0.115 R)
• M88: 53,795,095 km (0.109 R)
• M89: 54,517,354 km (0.051 R)
• M90: 56,611,873 km (0.064 R)
• M91: 57,899,612 km (0.054 R)
• M92: 59,103,875 km (0.085 R)
• M93: 61,914,669 km (0.103 R)
• M94: 62,766,330 km (0.062 R)
• M95: 63,241,153 km (0.075 R)

Kuiper Belt

Range: 30.9 - 55.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 404 - 18,188 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit