🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.4

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.56 AU - 0.66 AU

Year: 303 Days

Day: 15.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.61 AU - 0.63 AU

Year: 310 Days

Day: 41.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,551,779 km

• M1: 487,240 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726

Radius: 12

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.97 AU - 1.05 AU

Year: 645 Days

Day: 6.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,551,779 km

• M1: 158,723 km (0.041 R)
• M2: 430,692 km (0.079 R)
• M3: 788,979 km (0.119 R)
• M4: 1,154,447 km (0.089 R)
• M5: 1,725,163 km (0.114 R)
• M6: 2,234,992 km (0.116 R)
• M7: 2,465,672 km (0.112 R)
• M8: 3,929,038 km (0.048 R)
• M9: 4,316,497 km (0.117 R)
• M10: 4,758,409 km (0.12 R)
• M11: 5,098,445 km (0.045 R)
• M12: 5,592,118 km (0.059 R)
• M13: 6,806,554 km (0.112 R)
• M14: 7,154,967 km (0.038 R)
• M15: 7,694,267 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.6

Radius: 10.4

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.79 AU - 1.25 AU

Year: 655 Days

Day: 9.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,551,779 km

• M1: 174,730 km (0.088 R)
• M2: 530,923 km (0.052 R)
• M3: 731,085 km (0.052 R)
• M4: 1,274,574 km (0.063 R)
• M5: 1,857,856 km (0.118 R)
• M6: 2,198,042 km (0.086 R)
• M7: 2,668,377 km (0.073 R)
• M8: 3,122,856 km (0.117 R)
• M9: 3,813,848 km (0.105 R)
• M10: 4,400,870 km (0.095 R)
• M11: 5,655,248 km (0.045 R)
• M12: 6,421,937 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.8

Radius: 11

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.74 AU - 2.32 AU

Year: 1839 Days

Day: 5.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 50,551,779 km

• M1: 142,866 km (0.059 R)
• M2: 385,215 km (0.037 R)
• M3: 736,321 km (0.1 R)
• M4: 965,355 km (0.113 R)
• M5: 1,328,130 km (0.099 R)
• M6: 1,563,447 km (0.11 R)
• M7: 1,798,765 km (0.086 R)
• M8: 2,625,293 km (0.112 R)
• M9: 3,773,307 km (0.092 R)
• M10: 4,110,800 km (0.09 R)
• M11: 4,531,918 km (0.089 R)
• M12: 4,830,366 km (0.116 R)
• M13: 5,194,038 km (0.099 R)
• M14: 5,437,733 km (0.056 R)
• M15: 6,678,797 km (0.039 R)
• M16: 7,260,134 km (0.065 R)
• M17: 8,143,360 km (0.072 R)
• M18: 9,730,145 km (0.113 R)
• M19: 10,325,843 km (0.056 R)
• M20: 10,617,110 km (0.081 R)
• M21: 12,135,230 km (0.091 R)
• M22: 13,095,349 km (0.101 R)
• M23: 13,604,281 km (0.112 R)
• M24: 14,184,721 km (0.082 R)
• M25: 14,495,286 km (0.092 R)
• M26: 15,479,191 km (0.101 R)
• M27: 15,770,907 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.4

Radius: 10.1

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.91 AU - 3.71 AU

Year: 3829 Days

Day: 14.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 50,551,779 km

• M1: 126,111 km (0.104 R)
• M2: 426,653 km (0.027 R)
• M3: 773,122 km (0.071 R)
• M4: 1,121,685 km (0.076 R)
• M5: 1,329,626 km (0.076 R)
• M6: 1,873,115 km (0.112 R)
• M7: 2,175,303 km (0.085 R)
• M8: 2,405,833 km (0.045 R)
• M9: 3,281,728 km (0.049 R)
• M10: 3,802,927 km (0.111 R)
• M11: 4,648,155 km (0.064 R)
• M12: 5,291,875 km (0.064 R)
• M13: 6,468,462 km (0.119 R)
• M14: 6,842,307 km (0.082 R)
• M15: 7,226,924 km (0.066 R)
• M16: 8,414,581 km (0.045 R)
• M17: 8,656,930 km (0.106 R)
• M18: 10,620,551 km (0.117 R)
• M19: 13,656,939 km (0.116 R)
• M20: 13,888,517 km (0.092 R)
• M21: 14,161,234 km (0.096 R)
• M22: 15,936,811 km (0.085 R)
• M23: 17,121,775 km (0.05 R)
• M24: 19,619,910 km (0.049 R)
• M25: 19,944,239 km (0.098 R)
• M26: 20,838,086 km (0.054 R)
• M27: 21,364,521 km (0.084 R)
• M28: 22,486,654 km (0.115 R)
• M29: 23,083,550 km (0.08 R)
• M30: 23,334,725 km (0.101 R)
• M31: 24,713,867 km (0.079 R)
• M32: 27,046,846 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.2

Radius: 12.7

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 4.29 AU - 4.55 AU

Year: 5908 Days

Day: 7.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,551,779 km

• M1: 167,699 km (0.116 R)
• M2: 428,149 km (0.105 R)
• M3: 687,402 km (0.095 R)
• M4: 1,187,657 km (0.101 R)
• M5: 1,801,607 km (0.095 R)
• M6: 2,218,536 km (0.057 R)
• M7: 2,651,323 km (0.085 R)
• M8: 3,315,837 km (0.085 R)
• M9: 3,808,612 km (0.116 R)
• M10: 4,256,658 km (0.059 R)
• M11: 5,119,538 km (0.091 R)
• M12: 5,593,464 km (0.113 R)
• M13: 6,113,167 km (0.106 R)
• M14: 8,343,672 km (0.081 R)
• M15: 10,669,919 km (0.092 R)
• M16: 11,959,003 km (0.037 R)
• M17: 12,509,374 km (0.089 R)
• M18: 13,720,668 km (0.086 R)
• M19: 15,179,846 km (0.066 R)
• M20: 17,159,624 km (0.088 R)
• M21: 19,305,156 km (0.1 R)
• M22: 22,178,034 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.4

Radius: 10.4

Gravity: 8.28 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 5.05 AU - 6.17 AU

Year: 8448 Days

Day: 5.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 50,551,779 km

• M1: 137,181 km (0.092 R)
• M2: 507,735 km (0.091 R)
• M3: 1,431,951 km (0.042 R)
• M4: 2,708,769 km (0.088 R)
• M5: 3,459,152 km (0.114 R)
• M6: 3,976,611 km (0.095 R)
• M7: 4,502,896 km (0.084 R)
• M8: 5,721,071 km (0.085 R)
• M9: 6,838,567 km (0.044 R)
• M10: 7,640,113 km (0.04 R)
• M11: 9,884,231 km (0.033 R)
• M12: 10,846,145 km (0.117 R)
• M13: 11,116,319 km (0.066 R)
• M14: 12,041,133 km (0.119 R)
• M15: 12,278,096 km (0.108 R)
• M16: 13,850,519 km (0.065 R)
• M17: 15,039,822 km (0.084 R)
• M18: 16,888,253 km (0.025 R)
• M19: 17,795,564 km (0.105 R)
• M20: 18,550,286 km (0.111 R)
• M21: 20,168,336 km (0.077 R)
• M22: 20,537,095 km (0.065 R)
• M23: 21,854,454 km (0.114 R)
• M24: 23,674,910 km (0.109 R)
• M25: 24,275,695 km (0.086 R)
• M26: 24,748,125 km (0.064 R)
• M27: 25,225,193 km (0.089 R)
• M28: 26,262,804 km (0.104 R)
• M29: 29,058,938 km (0.071 R)
• M30: 30,022,647 km (0.069 R)
• M31: 30,623,432 km (0.112 R)
• M32: 31,078,060 km (0.07 R)
• M33: 32,695,512 km (0.094 R)
• M34: 33,401,315 km (0.101 R)
• M35: 34,755,176 km (0.028 R)
• M36: 35,158,492 km (0.063 R)
• M37: 35,401,588 km (0.116 R)
• M38: 41,312,948 km (0.106 R)
• M39: 45,262,930 km (0.068 R)
• M40: 45,723,243 km (0.098 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.8

Radius: 10.9

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 5.04 AU - 6.54 AU

Year: 8858 Days

Day: 11.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 50,551,779 km

• M1: 584,329 km (0.107 R)
• M2: 925,712 km (0.103 R)
• M3: 1,251,536 km (0.109 R)
• M4: 1,697,188 km (0.092 R)
• M5: 2,485,868 km (0.105 R)
• M6: 2,708,170 km (0.07 R)
• M7: 3,296,239 km (0.115 R)
• M8: 3,505,826 km (0.12 R)
• M9: 3,869,947 km (0.112 R)
• M10: 4,357,936 km (0.102 R)
• M11: 5,218,423 km (0.06 R)
• M12: 5,908,368 km (0.109 R)
• M13: 6,511,397 km (0.085 R)
• M14: 7,559,779 km (0.054 R)
• M15: 7,987,030 km (0.105 R)
• M16: 9,145,815 km (0.082 R)
• M17: 9,815,266 km (0.063 R)
• M18: 10,384,486 km (0.076 R)
• M19: 10,927,676 km (0.09 R)
• M20: 11,834,837 km (0.04 R)
• M21: 13,380,931 km (0.044 R)
• M22: 13,711,243 km (0.064 R)
• M23: 14,973,400 km (0.062 R)
• M24: 16,813,753 km (0.103 R)
• M25: 17,184,008 km (0.108 R)
• M26: 18,539,814 km (0.118 R)
• M27: 20,119,866 km (0.083 R)
• M28: 20,993,069 km (0.063 R)
• M29: 25,250,325 km (0.04 R)
• M30: 25,704,205 km (0.115 R)
• M31: 26,228,097 km (0.071 R)
• M32: 27,967,023 km (0.115 R)
• M33: 28,444,838 km (0.069 R)
• M34: 29,972,981 km (0.116 R)
• M35: 30,894,803 km (0.096 R)
• M36: 33,893,941 km (0.088 R)
• M37: 34,646,568 km (0.12 R)
• M38: 35,945,227 km (0.06 R)
• M39: 36,954,414 km (0.062 R)
• M40: 37,819,389 km (0.117 R)
• M41: 40,310,792 km (0.101 R)
• M42: 40,556,132 km (0.053 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 427

Radius: 5.5

Gravity: 14.12 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 7.23 AU - 8.27 AU

Year: 13718 Days

Day: 17.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,551,779 km

• M1: 441,763 km (0.113 R)
• M2: 603,927 km (0.085 R)
• M3: 771,327 km (0.095 R)
• M4: 908,508 km (0.104 R)
• M5: 1,328,728 km (0.087 R)
• M6: 1,910,066 km (0.108 R)
• M7: 2,646,835 km (0.104 R)
• M8: 3,123,454 km (0.06 R)
• M9: 3,507,322 km (0.052 R)
• M10: 5,270,183 km (0.049 R)
• M11: 5,632,809 km (0.098 R)
• M12: 6,683,883 km (0.097 R)
• M13: 8,846,919 km (0.11 R)
• M14: 14,035,871 km (0.08 R)
• M15: 16,585,766 km (0.11 R)
• M16: 17,820,846 km (0.116 R)
• M17: 18,363,737 km (0.113 R)
• M18: 29,381,321 km (0.057 R)
• M19: 33,354,341 km (0.087 R)
• M20: 40,326,350 km (0.085 R)
• M21: 42,057,646 km (0.112 R)
• M22: 46,400,173 km (0.08 R)
• M23: 49,847,506 km (0.106 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 202 - 12,715 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit