🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.53 AU - 0.59 AU

Year: 275 Days

Day: 46.6 Hours

Environment

Temp: -115 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.5

Radius: 13.8

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.74 AU - 0.94 AU

Year: 505 Days

Day: 7.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,339,785 km

• M1: 171,738 km (0.115 R)
• M2: 609,911 km (0.109 R)
• M3: 1,101,639 km (0.119 R)
• M4: 1,541,008 km (0.087 R)
• M5: 1,973,495 km (0.117 R)
• M6: 2,449,665 km (0.051 R)
• M7: 3,151,130 km (0.057 R)
• M8: 3,822,076 km (0.074 R)
• M9: 4,277,901 km (0.119 R)
• M10: 4,754,669 km (0.114 R)
• M11: 5,640,588 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.5

Radius: 12.4

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.82 AU - 3.14 AU

Year: 3375 Days

Day: 13.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,339,785 km

• M1: 154,535 km (0.089 R)
• M2: 588,668 km (0.116 R)
• M3: 1,642,136 km (0.031 R)
• M4: 2,034,232 km (0.041 R)
• M5: 2,430,965 km (0.118 R)
• M6: 3,329,600 km (0.057 R)
• M7: 3,886,553 km (0.045 R)
• M8: 4,527,430 km (0.104 R)
• M9: 5,312,968 km (0.079 R)
• M10: 7,341,516 km (0.067 R)
• M11: 8,221,301 km (0.044 R)
• M12: 9,097,346 km (0.098 R)
• M13: 9,539,557 km (0.111 R)
• M14: 10,953,107 km (0.079 R)
• M15: 12,819,042 km (0.063 R)
• M16: 14,191,901 km (0.1 R)
• M17: 14,787,750 km (0.07 R)
• M18: 17,116,540 km (0.039 R)
• M19: 17,791,974 km (0.099 R)
• M20: 20,172,375 km (0.046 R)
• M21: 21,633,498 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560

Radius: 8.5

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.11 AU - 4.39 AU

Year: 4764 Days

Day: 11.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,339,785 km

• M1: 106,065 km (0.034 R)
• M2: 441,314 km (0.026 R)
• M3: 893,698 km (0.07 R)
• M4: 1,204,712 km (0.103 R)
• M5: 2,347,340 km (0.081 R)
• M6: 3,428,783 km (0.039 R)
• M7: 4,489,881 km (0.057 R)
• M8: 7,619,020 km (0.099 R)
• M9: 8,935,630 km (0.032 R)
• M10: 9,729,546 km (0.076 R)
• M11: 11,457,103 km (0.117 R)
• M12: 12,489,926 km (0.107 R)
• M13: 20,830,905 km (0.079 R)
• M14: 24,199,251 km (0.099 R)
• M15: 27,338,263 km (0.097 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 873.6

Radius: 5.1

Gravity: 33.59 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.39 AU - 8.77 AU

Year: 12358 Days

Day: 20.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 69,339,785 km

• M1: 65,075 km (0.12 R)
• M2: 286,031 km (0.113 R)
• M3: 666,010 km (0.087 R)
• M4: 1,020,407 km (0.117 R)
• M5: 1,201,570 km (0.117 R)
• M6: 1,760,019 km (0.079 R)
• M7: 2,291,540 km (0.102 R)
• M8: 2,476,443 km (0.082 R)
• M9: 3,293,098 km (0.079 R)
• M10: 10,508,802 km (0.108 R)
• M11: 12,533,010 km (0.107 R)
• M12: 15,230,410 km (0.081 R)
• M13: 15,812,645 km (0.082 R)
• M14: 16,790,566 km (0.097 R)
• M15: 17,411,846 km (0.098 R)
• M16: 18,291,182 km (0.096 R)
• M17: 19,283,614 km (0.042 R)
• M18: 19,452,510 km (0.034 R)
• M19: 20,398,866 km (0.046 R)
• M20: 20,838,983 km (0.041 R)
• M21: 21,195,625 km (0.055 R)
• M22: 21,738,216 km (0.1 R)
• M23: 25,290,717 km (0.118 R)
• M24: 25,493,123 km (0.11 R)
• M25: 26,939,884 km (0.091 R)
• M26: 28,006,367 km (0.054 R)
• M27: 30,679,980 km (0.076 R)
• M28: 31,842,505 km (0.057 R)
• M29: 32,913,626 km (0.104 R)
• M30: 33,640,971 km (0.086 R)
• M31: 35,002,012 km (0.083 R)
• M32: 35,253,337 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 848.5

Radius: 7.4

Gravity: 15.49 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 6.59 AU - 7.71 AU

Year: 12542 Days

Day: 16 Hours

Environment

Temp: -219 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 69,339,785 km

• M1: 92,003 km (0.061 R)
• M2: 629,957 km (0.107 R)
• M3: 1,106,725 km (0.084 R)
• M4: 1,907,522 km (0.087 R)
• M5: 2,359,607 km (0.119 R)
• M6: 2,721,484 km (0.114 R)
• M7: 3,583,617 km (0.112 R)
• M8: 5,872,614 km (0.111 R)
• M9: 6,417,749 km (0.082 R)
• M10: 7,974,913 km (0.099 R)
• M11: 9,297,059 km (0.12 R)
• M12: 10,366,384 km (0.065 R)
• M13: 10,702,680 km (0.116 R)
• M14: 13,593,510 km (0.099 R)
• M15: 13,996,526 km (0.089 R)
• M16: 17,830,271 km (0.087 R)
• M17: 18,970,805 km (0.085 R)
• M18: 19,221,382 km (0.116 R)
• M19: 20,860,226 km (0.109 R)
• M20: 22,033,672 km (0.093 R)
• M21: 26,125,922 km (0.102 R)
• M22: 28,897,821 km (0.117 R)
• M23: 35,775,583 km (0.115 R)
• M24: 37,192,424 km (0.096 R)
• M25: 43,379,343 km (0.096 R)
• M26: 49,900,165 km (0.094 R)
• M27: 51,505,051 km (0.026 R)
• M28: 54,817,447 km (0.05 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118.1

Radius: 7

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 7.99 AU - 7.99 AU

Year: 14816 Days

Day: 19.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,339,785 km

• M1: 87,066 km (0.079 R)
• M2: 306,077 km (0.059 R)
• M3: 547,379 km (0.057 R)
• M4: 838,197 km (0.093 R)
• M5: 1,078,002 km (0.081 R)
• M6: 1,494,932 km (0.117 R)
• M7: 2,283,911 km (0.096 R)
• M8: 3,723,790 km (0.075 R)
• M9: 4,180,812 km (0.073 R)
• M10: 7,632,184 km (0.114 R)
• M11: 8,900,625 km (0.059 R)
• M12: 9,939,881 km (0.101 R)
• M13: 10,211,850 km (0.076 R)
• M14: 10,770,747 km (0.074 R)
• M15: 11,547,460 km (0.056 R)
• M16: 13,049,572 km (0.063 R)
• M17: 14,503,065 km (0.068 R)
• M18: 15,449,271 km (0.089 R)
• M19: 17,530,028 km (0.053 R)
• M20: 18,809,090 km (0.111 R)
• M21: 20,293,998 km (0.105 R)
• M22: 20,512,262 km (0.073 R)
• M23: 20,805,773 km (0.111 R)
• M24: 27,017,525 km (0.1 R)
• M25: 29,458,962 km (0.043 R)
• M26: 30,020,702 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 466.3

Radius: 5.7

Gravity: 14.35 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 7.95 AU - 12.27 AU

Year: 21088 Days

Day: 23.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 69,339,785 km

• M1: 70,909 km (0.103 R)
• M2: 502,350 km (0.113 R)
• M3: 881,131 km (0.092 R)
• M4: 1,495,829 km (0.057 R)
• M5: 1,813,276 km (0.106 R)
• M6: 1,997,880 km (0.078 R)
• M7: 2,362,001 km (0.098 R)
• M8: 2,560,218 km (0.11 R)
• M9: 2,745,719 km (0.086 R)
• M10: 3,092,038 km (0.114 R)
• M11: 3,841,823 km (0.107 R)
• M12: 4,054,701 km (0.098 R)
• M13: 6,769,304 km (0.096 R)
• M14: 10,500,574 km (0.078 R)
• M15: 11,345,951 km (0.06 R)
• M16: 12,235,610 km (0.039 R)
• M17: 13,867,573 km (0.083 R)
• M18: 14,735,689 km (0.1 R)
• M19: 16,262,186 km (0.078 R)
• M20: 19,093,924 km (0.101 R)
• M21: 21,469,090 km (0.117 R)
• M22: 21,755,270 km (0.089 R)
• M23: 23,425,082 km (0.078 R)
• M24: 28,597,877 km (0.111 R)
• M25: 30,839,751 km (0.066 R)
• M26: 32,942,648 km (0.039 R)
• M27: 35,536,525 km (0.074 R)
• M28: 36,340,614 km (0.117 R)
• M29: 39,964,922 km (0.118 R)
• M30: 44,592,432 km (0.113 R)
• M31: 45,999,999 km (0.101 R)
• M32: 55,787,739 km (0.065 R)
• M33: 57,788,311 km (0.117 R)
• M34: 65,266,260 km (0.056 R)
• M35: 68,511,935 km (0.07 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: 528 - 10,897 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit