🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.42 AU - 0.68 AU

Year: 268 Days

Day: 34.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 44.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,939,846 km

• M1: 110,254 km (0.055 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.5 AU - 0.72 AU

Year: 313 Days

Day: 41.1 Hours

Environment

Temp: -128 °C

Axial Tilt: 44.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,939,846 km

• M1: 42,635 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.6

Radius: 13.9

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.06 AU - 1.14 AU

Year: 757 Days

Day: 6.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,939,846 km

• M1: 172,935 km (0.102 R)
• M2: 724,802 km (0.076 R)
• M3: 1,186,760 km (0.106 R)
• M4: 1,647,671 km (0.105 R)
• M5: 2,855,225 km (0.061 R)
• M6: 3,567,161 km (0.041 R)
• M7: 4,207,590 km (0.035 R)
• M8: 5,293,670 km (0.079 R)
• M9: 5,932,154 km (0.088 R)
• M10: 6,770,351 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.7

Radius: 11.4

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.67 AU - 1.73 AU

Year: 1454 Days

Day: 10.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,939,846 km

• M1: 144,362 km (0.115 R)
• M2: 566,078 km (0.075 R)
• M3: 933,940 km (0.113 R)
• M4: 1,336,807 km (0.111 R)
• M5: 1,797,718 km (0.088 R)
• M6: 2,156,603 km (0.059 R)
• M7: 2,574,729 km (0.068 R)
• M8: 3,576,735 km (0.062 R)
• M9: 4,167,348 km (0.063 R)
• M10: 5,254,027 km (0.094 R)
• M11: 6,644,988 km (0.027 R)
• M12: 7,677,064 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370

Radius: 13.6

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.22 AU - 2.44 AU

Year: 2333 Days

Day: 6.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,939,846 km

• M1: 170,093 km (0.12 R)
• M2: 639,381 km (0.1 R)
• M3: 1,070,522 km (0.12 R)
• M4: 2,285,407 km (0.047 R)
• M5: 2,779,080 km (0.052 R)
• M6: 3,440,003 km (0.116 R)
• M7: 4,788,179 km (0.084 R)
• M8: 6,216,689 km (0.042 R)
• M9: 7,798,537 km (0.09 R)
• M10: 9,310,373 km (0.097 R)
• M11: 9,866,578 km (0.102 R)
• M12: 10,973,752 km (0.118 R)
• M13: 11,971,121 km (0.053 R)
• M14: 13,271,126 km (0.1 R)
• M15: 14,146,124 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.9

Radius: 10.2

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.97 AU - 2.89 AU

Year: 2485 Days

Day: 11.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,939,846 km

• M1: 133,441 km (0.114 R)
• M2: 497,862 km (0.033 R)
• M3: 869,313 km (0.078 R)
• M4: 1,232,836 km (0.069 R)
• M5: 1,893,909 km (0.066 R)
• M6: 2,379,653 km (0.081 R)
• M7: 3,155,767 km (0.114 R)
• M8: 3,894,930 km (0.037 R)
• M9: 6,066,493 km (0.118 R)
• M10: 6,633,020 km (0.1 R)
• M11: 8,307,469 km (0.057 R)
• M12: 11,597,725 km (0.071 R)
• M13: 12,588,062 km (0.055 R)
• M14: 13,224,901 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.7

Radius: 10.6

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.57 AU - 3.53 AU

Year: 3494 Days

Day: 8 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,939,846 km

• M1: 131,945 km (0.111 R)
• M2: 598,840 km (0.118 R)
• M3: 935,884 km (0.113 R)
• M4: 1,466,508 km (0.099 R)
• M5: 2,405,534 km (0.083 R)
• M6: 3,357,575 km (0.09 R)
• M7: 4,543,886 km (0.06 R)
• M8: 5,245,649 km (0.039 R)
• M9: 6,018,322 km (0.117 R)
• M10: 9,728,200 km (0.103 R)
• M11: 12,788,075 km (0.034 R)
• M12: 13,643,176 km (0.107 R)
• M13: 14,434,848 km (0.049 R)
• M14: 14,893,515 km (0.101 R)
• M15: 16,881,970 km (0.098 R)
• M16: 18,027,591 km (0.056 R)
• M17: 18,381,090 km (0.076 R)
• M18: 19,346,745 km (0.101 R)
• M19: 20,600,824 km (0.107 R)
• M20: 21,576,351 km (0.063 R)
• M21: 21,908,309 km (0.09 R)
• M22: 22,993,642 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723

Radius: 8.9

Gravity: 9.13 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 4.53 AU - 4.53 AU

Year: 6325 Days

Day: 5.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,939,846 km

• M1: 112,647 km (0.086 R)
• M2: 497,563 km (0.048 R)
• M3: 1,199,476 km (0.074 R)
• M4: 1,647,671 km (0.063 R)
• M5: 2,140,596 km (0.105 R)
• M6: 3,082,015 km (0.067 R)
• M7: 3,509,865 km (0.109 R)
• M8: 5,724,363 km (0.105 R)
• M9: 6,107,782 km (0.104 R)
• M10: 6,406,379 km (0.105 R)
• M11: 6,784,712 km (0.083 R)
• M12: 7,436,061 km (0.116 R)
• M13: 8,168,044 km (0.098 R)
• M14: 9,117,541 km (0.041 R)
• M15: 9,420,627 km (0.08 R)
• M16: 10,046,993 km (0.076 R)
• M17: 10,511,195 km (0.086 R)
• M18: 11,283,719 km (0.097 R)
• M19: 14,637,703 km (0.12 R)
• M20: 15,847,650 km (0.095 R)
• M21: 17,123,122 km (0.047 R)
• M22: 20,240,742 km (0.096 R)
• M23: 20,981,550 km (0.111 R)
• M24: 21,510,827 km (0.089 R)
• M25: 21,894,396 km (0.1 R)
• M26: 23,474,299 km (0.099 R)
• M27: 26,507,097 km (0.061 R)
• M28: 26,947,962 km (0.117 R)
• M29: 31,139,096 km (0.067 R)
• M30: 35,106,581 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 966

Radius: 6.7

Gravity: 21.52 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 5.67 AU - 8.27 AU

Year: 12071 Days

Day: 20.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,939,846 km

• M1: 83,326 km (0.1 R)
• M2: 297,101 km (0.1 R)
• M3: 584,928 km (0.082 R)
• M4: 956,529 km (0.109 R)
• M5: 1,177,784 km (0.081 R)
• M6: 1,742,965 km (0.057 R)
• M7: 2,604,050 km (0.116 R)
• M8: 2,829,045 km (0.068 R)
• M9: 4,821,240 km (0.116 R)
• M10: 5,232,036 km (0.117 R)
• M11: 6,202,178 km (0.108 R)
• M12: 7,419,755 km (0.108 R)
• M13: 7,874,383 km (0.108 R)
• M14: 8,839,289 km (0.059 R)
• M15: 12,709,536 km (0.091 R)
• M16: 13,828,827 km (0.096 R)
• M17: 15,228,016 km (0.112 R)
• M18: 16,413,280 km (0.091 R)
• M19: 18,882,842 km (0.065 R)
• M20: 19,303,062 km (0.086 R)
• M21: 21,407,605 km (0.102 R)
• M22: 26,903,531 km (0.112 R)
• M23: 27,328,539 km (0.116 R)
• M24: 29,074,197 km (0.045 R)
• M25: 29,297,397 km (0.091 R)
• M26: 31,829,789 km (0.108 R)
• M27: 32,906,445 km (0.118 R)
• M28: 38,791,476 km (0.1 R)
• M29: 39,881,745 km (0.118 R)
• M30: 53,925,245 km (0.108 R)
• M31: 54,262,439 km (0.107 R)
• M32: 58,065,217 km (0.094 R)
• M33: 60,393,708 km (0.099 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 12,803 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit