🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.55 AU - 0.59 AU

Year: 282 Days

Day: 27.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.6

Radius: 14.2

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.53 AU - 0.85 AU

Year: 376 Days

Day: 9.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 90,597,304 km

• M1: 176,675 km (0.118 R)
• M2: 633,098 km (0.073 R)
• M3: 1,155,045 km (0.025 R)
• M4: 1,887,028 km (0.107 R)
• M5: 2,388,180 km (0.053 R)
• M6: 2,904,891 km (0.113 R)
• M7: 4,331,606 km (0.12 R)
• M8: 4,894,244 km (0.108 R)
• M9: 5,720,323 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.7

Radius: 8

Gravity: 14.14 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.54 AU - 0.88 AU

Year: 392 Days

Day: 9.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 90,597,304 km

• M1: 99,632 km (0.092 R)
• M2: 364,570 km (0.06 R)
• M3: 633,098 km (0.088 R)
• M4: 1,034,918 km (0.03 R)
• M5: 1,489,097 km (0.048 R)
• M6: 2,639,954 km (0.096 R)
• M7: 3,181,199 km (0.034 R)
• M8: 3,453,916 km (0.047 R)
• M9: 3,833,445 km (0.068 R)
• M10: 4,129,051 km (0.088 R)
• M11: 4,812,264 km (0.071 R)
• M12: 5,302,646 km (0.1 R)
• M13: 6,037,620 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.7

Radius: 11

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.66 AU - 0.9 AU

Year: 452 Days

Day: 15 Hours

Environment

Temp: -139 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 90,597,304 km

• M1: 136,882 km (0.077 R)
• M2: 495,618 km (0.087 R)
• M3: 953,686 km (0.051 R)
• M4: 1,338,452 km (0.104 R)
• M5: 1,693,597 km (0.063 R)
• M6: 2,036,625 km (0.115 R)
• M7: 2,426,777 km (0.104 R)
• M8: 3,492,213 km (0.101 R)
• M9: 3,922,755 km (0.108 R)
• M10: 5,514,926 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.2

Radius: 10.9

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.62 AU - 1.92 AU

Year: 1545 Days

Day: 5.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 90,597,304 km

• M1: 135,685 km (0.115 R)
• M2: 753,524 km (0.109 R)
• M3: 3,053,741 km (0.091 R)
• M4: 4,007,727 km (0.09 R)
• M5: 4,393,241 km (0.109 R)
• M6: 4,752,724 km (0.086 R)
• M7: 6,010,842 km (0.119 R)
• M8: 6,685,828 km (0.04 R)
• M9: 7,478,996 km (0.086 R)
• M10: 8,089,954 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.5

Radius: 14.9

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.77 AU - 1.87 AU

Year: 1611 Days

Day: 14.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 90,597,304 km

• M1: 185,352 km (0.104 R)
• M2: 805,136 km (0.106 R)
• M3: 1,525,001 km (0.097 R)
• M4: 2,023,162 km (0.117 R)
• M5: 3,314,640 km (0.089 R)
• M6: 4,168,395 km (0.051 R)
• M7: 5,399,735 km (0.091 R)
• M8: 6,659,349 km (0.109 R)
• M9: 7,225,727 km (0.116 R)
• M10: 8,107,157 km (0.103 R)
• M11: 9,723,712 km (0.072 R)
• M12: 10,729,309 km (0.12 R)
• M13: 11,473,708 km (0.081 R)
• M14: 13,225,050 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.1

Radius: 11.4

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.69 AU - 2.61 AU

Year: 2068 Days

Day: 5.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 90,597,304 km

• M1: 141,819 km (0.086 R)
• M2: 618,138 km (0.117 R)
• M3: 1,187,657 km (0.085 R)
• M4: 1,763,908 km (0.065 R)
• M5: 2,235,291 km (0.088 R)
• M6: 2,830,242 km (0.092 R)
• M7: 3,268,863 km (0.094 R)
• M8: 3,818,486 km (0.067 R)
• M9: 4,230,478 km (0.115 R)
• M10: 6,658,751 km (0.065 R)
• M11: 7,335,980 km (0.084 R)
• M12: 7,839,527 km (0.119 R)
• M13: 10,153,207 km (0.047 R)
• M14: 10,880,552 km (0.058 R)
• M15: 11,361,360 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.4

Radius: 8

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 4.15 AU - 4.85 AU

Year: 6262 Days

Day: 11.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 90,597,304 km

• M1: 99,483 km (0.097 R)
• M2: 348,713 km (0.066 R)
• M3: 636,240 km (0.106 R)
• M4: 1,116,449 km (0.1 R)
• M5: 1,807,591 km (0.095 R)
• M6: 2,138,651 km (0.106 R)
• M7: 2,425,729 km (0.043 R)
• M8: 3,117,919 km (0.06 R)
• M9: 3,640,763 km (0.117 R)
• M10: 4,807,627 km (0.057 R)
• M11: 5,564,442 km (0.081 R)
• M12: 6,111,522 km (0.093 R)
• M13: 6,495,839 km (0.111 R)
• M14: 7,348,397 km (0.112 R)
• M15: 7,857,479 km (0.105 R)
• M16: 9,274,320 km (0.095 R)
• M17: 9,526,093 km (0.09 R)
• M18: 9,955,738 km (0.118 R)
• M19: 14,649,820 km (0.073 R)
• M20: 17,219,164 km (0.086 R)
• M21: 21,068,167 km (0.089 R)
• M22: 21,430,942 km (0.046 R)
• M23: 21,724,154 km (0.112 R)
• M24: 26,450,100 km (0.105 R)
• M25: 28,166,287 km (0.116 R)
• M26: 28,962,297 km (0.047 R)
• M27: 29,773,118 km (0.048 R)
• M28: 30,046,732 km (0.079 R)
• M29: 31,723,874 km (0.032 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 972.2

Radius: 6.1

Gravity: 26.13 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 8.46 AU - 12.22 AU

Year: 21812 Days

Day: 23.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 90,597,304 km

• M1: 76,295 km (0.045 R)
• M2: 375,341 km (0.065 R)
• M3: 757,414 km (0.053 R)
• M4: 1,220,868 km (0.061 R)
• M5: 1,524,402 km (0.052 R)
• M6: 1,857,557 km (0.094 R)
• M7: 2,519,976 km (0.034 R)
• M8: 4,698,271 km (0.106 R)
• M9: 5,869,173 km (0.052 R)
• M10: 6,360,453 km (0.096 R)
• M11: 7,475,705 km (0.081 R)
• M12: 9,777,268 km (0.049 R)
• M13: 10,212,448 km (0.115 R)
• M14: 10,402,886 km (0.104 R)
• M15: 12,368,453 km (0.116 R)
• M16: 18,478,628 km (0.096 R)
• M17: 19,433,661 km (0.061 R)
• M18: 19,923,295 km (0.059 R)
• M19: 24,706,537 km (0.044 R)
• M20: 30,595,457 km (0.089 R)
• M21: 34,145,116 km (0.118 R)
• M22: 35,290,287 km (0.115 R)
• M23: 39,188,509 km (0.106 R)
• M24: 39,499,672 km (0.084 R)
• M25: 40,761,231 km (0.077 R)
• M26: 41,241,141 km (0.09 R)
• M27: 50,720,410 km (0.094 R)
• M28: 55,080,739 km (0.041 R)
• M29: 57,853,685 km (0.094 R)
• M30: 65,189,965 km (0.114 R)
• M31: 68,065,535 km (0.074 R)
• M32: 69,420,742 km (0.081 R)
• M33: 71,487,287 km (0.052 R)
• M34: 78,177,902 km (0.073 R)
• M35: 86,321,412 km (0.114 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 285 - 10,971 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit