🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.38

Radius: 1.14

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.04 AU - 1.66 AU

Year: 559 Days

Day: 46.6 Hours

Environment

Temp: 14 °C

Axial Tilt: 161.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 55,353,654 km

• M1: 666,459 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.2

Radius: 13.9

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.38 AU - 5.8 AU

Year: 4711 Days

Day: 5.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 55,353,654 km

• M1: 237,262 km (0.108 R)
• M2: 410,347 km (0.115 R)
• M3: 497,862 km (0.072 R)
• M4: 614,249 km (0.062 R)
• M5: 742,005 km (0.081 R)
• M6: 832,961 km (0.099 R)
• M7: 1,105,229 km (0.091 R)
• M8: 1,628,522 km (0.09 R)
• M9: 1,782,758 km (0.066 R)
• M10: 1,877,752 km (0.098 R)
• M11: 2,309,791 km (0.037 R)
• M12: 2,502,174 km (0.082 R)
• M13: 3,034,892 km (0.119 R)
• M14: 3,207,678 km (0.096 R)
• M15: 3,383,605 km (0.106 R)
• M16: 3,868,751 km (0.083 R)
• M17: 4,162,112 km (0.1 R)
• M18: 4,268,775 km (0.117 R)
• M19: 4,376,187 km (0.075 R)
• M20: 4,615,992 km (0.112 R)
• M21: 5,199,872 km (0.108 R)
• M22: 5,338,101 km (0.102 R)
• M23: 5,430,852 km (0.078 R)
• M24: 5,524,201 km (0.11 R)
• M25: 5,712,544 km (0.064 R)
• M26: 6,143,985 km (0.073 R)
• M27: 6,339,359 km (0.074 R)
• M28: 6,462,329 km (0.113 R)
• M29: 6,660,995 km (0.064 R)
• M30: 6,962,734 km (0.108 R)
• M31: 7,658,065 km (0.058 R)
• M32: 8,214,419 km (0.116 R)
• M33: 8,348,758 km (0.065 R)
• M34: 8,483,994 km (0.062 R)
• M35: 8,729,036 km (0.11 R)
• M36: 8,866,217 km (0.093 R)
• M37: 9,004,146 km (0.076 R)
• M38: 9,198,474 km (0.08 R)
• M39: 9,394,148 km (0.115 R)
• M40: 9,761,261 km (0.119 R)
• M41: 9,960,974 km (0.113 R)
• M42: 10,626,535 km (0.118 R)
• M43: 11,098,068 km (0.09 R)
• M44: 11,366,297 km (0.112 R)
• M45: 12,122,813 km (0.027 R)
• M46: 12,522,688 km (0.078 R)
• M47: 12,646,555 km (0.091 R)
• M48: 13,780,208 km (0.1 R)
• M49: 14,782,364 km (0.089 R)
• M50: 16,076,236 km (0.086 R)
• M51: 16,753,914 km (0.11 R)
• M52: 16,856,389 km (0.067 R)
• M53: 17,822,791 km (0.091 R)
• M54: 18,277,569 km (0.096 R)
• M55: 18,665,326 km (0.11 R)
• M56: 18,949,113 km (0.097 R)
• M57: 19,162,889 km (0.119 R)
• M58: 19,917,461 km (0.098 R)
• M59: 20,062,271 km (0.094 R)
• M60: 20,462,296 km (0.032 R)
• M61: 21,122,771 km (0.118 R)
• M62: 21,641,127 km (0.09 R)
• M63: 21,939,425 km (0.085 R)
• M64: 22,314,018 km (0.082 R)
• M65: 22,539,762 km (0.042 R)
• M66: 22,804,251 km (0.064 R)
• M67: 23,450,663 km (0.095 R)
• M68: 23,680,146 km (0.118 R)
• M69: 24,917,321 km (0.118 R)
• M70: 25,269,025 km (0.109 R)
• M71: 25,819,396 km (0.117 R)
• M72: 26,096,002 km (0.104 R)
• M73: 26,373,805 km (0.113 R)
• M74: 26,692,299 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 6.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.5

Radius: 12.6

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 6.25 AU - 7.57 AU

Year: 6475 Days

Day: 13.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 55,353,654 km

• M1: 364,271 km (0.101 R)
• M2: 488,437 km (0.067 R)
• M3: 630,405 km (0.104 R)
• M4: 803,640 km (0.119 R)
• M5: 1,026,989 km (0.083 R)
• M6: 1,181,973 km (0.1 R)
• M7: 1,477,429 km (0.12 R)
• M8: 1,614,311 km (0.117 R)
• M9: 2,227,213 km (0.034 R)
• M10: 2,883,349 km (0.059 R)
• M11: 3,157,113 km (0.071 R)
• M12: 3,258,840 km (0.108 R)
• M13: 3,387,644 km (0.095 R)
• M14: 3,517,944 km (0.057 R)
• M15: 3,784,078 km (0.086 R)
• M16: 3,974,217 km (0.094 R)
• M17: 4,251,422 km (0.065 R)
• M18: 4,420,767 km (0.116 R)
• M19: 5,150,954 km (0.116 R)
• M20: 5,392,554 km (0.1 R)
• M21: 5,981,521 km (0.085 R)
• M22: 7,525,072 km (0.075 R)
• M23: 7,730,769 km (0.05 R)
• M24: 8,112,543 km (0.102 R)
• M25: 8,288,171 km (0.062 R)
• M26: 8,679,070 km (0.101 R)
• M27: 8,858,737 km (0.115 R)
• M28: 8,967,196 km (0.116 R)
• M29: 9,112,306 km (0.084 R)
• M30: 9,221,811 km (0.068 R)
• M31: 9,775,622 km (0.061 R)
• M32: 10,492,495 km (0.111 R)
• M33: 11,501,084 km (0.12 R)
• M34: 11,580,072 km (0.101 R)
• M35: 11,698,703 km (0.107 R)
• M36: 11,937,162 km (0.026 R)
• M37: 12,017,047 km (0.084 R)
• M38: 12,540,490 km (0.116 R)
• M39: 13,319,147 km (0.084 R)
• M40: 13,568,228 km (0.105 R)
• M41: 13,777,066 km (0.114 R)
• M42: 14,622,893 km (0.08 R)
• M43: 15,138,407 km (0.105 R)
• M44: 15,485,474 km (0.109 R)
• M45: 15,616,372 km (0.057 R)
• M46: 17,169,796 km (0.081 R)
• M47: 17,350,361 km (0.063 R)
• M48: 17,577,151 km (0.082 R)
• M49: 18,540,113 km (0.039 R)
• M50: 18,818,515 km (0.09 R)
• M51: 19,567,401 km (0.045 R)
• M52: 20,757,004 km (0.086 R)
• M53: 20,853,195 km (0.06 R)
• M54: 21,287,927 km (0.118 R)
• M55: 21,579,343 km (0.115 R)
• M56: 22,019,011 km (0.119 R)
• M57: 22,166,216 km (0.097 R)
• M58: 23,006,657 km (0.104 R)
• M59: 23,106,289 km (0.117 R)
• M60: 23,556,130 km (0.106 R)
• M61: 23,958,398 km (0.07 R)
• M62: 24,616,928 km (0.098 R)
• M63: 24,871,843 km (0.091 R)
• M64: 25,025,181 km (0.076 R)
• M65: 25,435,677 km (0.109 R)
• M66: 26,263,253 km (0.056 R)
• M67: 27,099,804 km (0.073 R)
• M68: 27,310,288 km (0.099 R)
• M69: 28,317,531 km (0.077 R)
• M70: 29,283,035 km (0.117 R)
• M71: 33,589,808 km (0.08 R)
• M72: 34,782,851 km (0.062 R)
• M73: 35,068,882 km (0.091 R)
• M74: 35,183,624 km (0.09 R)
• M75: 35,470,702 km (0.116 R)
• M76: 36,163,191 km (0.063 R)
• M77: 36,278,980 km (0.055 R)
• M78: 36,801,824 km (0.079 R)
• M79: 37,093,390 km (0.12 R)
• M80: 37,327,062 km (0.05 R)
• M81: 37,619,975 km (0.084 R)
• M82: 37,737,409 km (0.056 R)
• M83: 37,854,844 km (0.118 R)
• M84: 38,208,194 km (0.074 R)
• M85: 40,050,641 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.4

Radius: 11.2

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 7.92 AU - 12.62 AU

Year: 11731 Days

Day: 12 Hours

Environment

Temp: -172 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 55,353,654 km

• M1: 258,505 km (0.075 R)
• M2: 346,319 km (0.096 R)
• M3: 564,283 km (0.047 R)
• M4: 758,760 km (0.116 R)
• M5: 864,825 km (0.101 R)
• M6: 1,277,416 km (0.084 R)
• M7: 1,428,061 km (0.084 R)
• M8: 1,723,966 km (0.116 R)
• M9: 2,268,951 km (0.067 R)
• M10: 2,347,340 km (0.063 R)
• M11: 2,781,024 km (0.104 R)
• M12: 3,538,738 km (0.113 R)
• M13: 3,660,809 km (0.097 R)
• M14: 3,909,441 km (0.053 R)
• M15: 4,099,430 km (0.093 R)
• M16: 4,195,622 km (0.099 R)
• M17: 4,822,437 km (0.087 R)
• M18: 5,095,303 km (0.119 R)
• M19: 5,303,095 km (0.079 R)
• M20: 5,373,107 km (0.101 R)
• M21: 5,478,573 km (0.045 R)
• M22: 5,655,996 km (0.096 R)
• M23: 5,799,311 km (0.03 R)
• M24: 6,759,879 km (0.033 R)
• M25: 7,532,253 km (0.043 R)
• M26: 8,009,171 km (0.085 R)
• M27: 8,291,911 km (0.078 R)
• M28: 8,454,972 km (0.093 R)
• M29: 8,660,221 km (0.06 R)
• M30: 8,784,237 km (0.082 R)
• M31: 9,497,969 km (0.086 R)
• M32: 10,186,867 km (0.068 R)
• M33: 11,795,044 km (0.1 R)
• M34: 12,863,472 km (0.061 R)
• M35: 13,914,248 km (0.073 R)
• M36: 14,059,657 km (0.074 R)
• M37: 14,254,284 km (0.11 R)
• M38: 14,646,380 km (0.086 R)
• M39: 14,893,216 km (0.105 R)
• M40: 14,992,399 km (0.118 R)
• M41: 15,191,215 km (0.103 R)
• M42: 15,541,424 km (0.108 R)
• M43: 16,300,932 km (0.113 R)
• M44: 16,659,518 km (0.099 R)
• M45: 16,865,664 km (0.082 R)
• M46: 17,020,797 km (0.072 R)
• M47: 17,332,409 km (0.118 R)
• M48: 18,651,264 km (0.108 R)
• M49: 18,972,451 km (0.113 R)
• M50: 19,295,732 km (0.118 R)
• M51: 19,947,530 km (0.055 R)
• M52: 21,328,468 km (0.084 R)
• M53: 22,285,146 km (0.075 R)
• M54: 23,255,737 km (0.088 R)
• M55: 24,415,420 km (0.079 R)
• M56: 24,532,405 km (0.03 R)
• M57: 25,831,513 km (0.108 R)
• M58: 26,911,161 km (0.11 R)
• M59: 27,032,036 km (0.062 R)
• M60: 27,456,445 km (0.044 R)
• M61: 28,558,084 km (0.055 R)
• M62: 29,052,355 km (0.086 R)
• M63: 29,176,372 km (0.094 R)
• M64: 29,798,998 km (0.115 R)
• M65: 30,551,924 km (0.104 R)
• M66: 30,804,296 km (0.107 R)
• M67: 31,374,713 km (0.077 R)
• M68: 32,076,626 km (0.117 R)
• M69: 32,848,252 km (0.106 R)
• M70: 35,596,813 km (0.099 R)
• M71: 35,729,507 km (0.119 R)
• M72: 36,797,187 km (0.078 R)
• M73: 36,931,376 km (0.114 R)
• M74: 39,032,179 km (0.091 R)
• M75: 39,374,608 km (0.058 R)
• M76: 40,062,609 km (0.028 R)
• M77: 41,729,728 km (0.11 R)
• M78: 41,939,763 km (0.1 R)
• M79: 42,150,098 km (0.032 R)
• M80: 43,845,490 km (0.07 R)
• M81: 46,068,215 km (0.109 R)
• M82: 48,695,005 km (0.075 R)
• M83: 48,842,358 km (0.093 R)

Planet 5 - Ice Giant

Semi-Major Axis: 17.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 472.9

Radius: 4.4

Gravity: 24.43 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 17.09 AU - 17.85 AU

Year: 26028 Days

Day: 23.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 55,353,654 km

• M1: 74,949 km (0.095 R)
• M2: 201,808 km (0.106 R)
• M3: 470,934 km (0.116 R)
• M4: 671,694 km (0.115 R)
• M5: 950,246 km (0.059 R)
• M6: 1,032,076 km (0.06 R)
• M7: 1,291,329 km (0.092 R)
• M8: 2,181,586 km (0.117 R)
• M9: 2,549,896 km (0.082 R)
• M10: 2,819,172 km (0.112 R)
• M11: 3,017,090 km (0.089 R)
• M12: 3,301,625 km (0.101 R)
• M13: 4,250,823 km (0.086 R)
• M14: 4,431,987 km (0.036 R)
• M15: 4,848,617 km (0.071 R)
• M16: 4,943,013 km (0.063 R)
• M17: 5,669,460 km (0.09 R)
• M18: 5,718,977 km (0.062 R)
• M19: 5,768,793 km (0.109 R)
• M20: 6,019,818 km (0.073 R)
• M21: 6,121,096 km (0.099 R)
• M22: 7,112,182 km (0.087 R)
• M23: 8,603,972 km (0.112 R)
• M24: 10,308,939 km (0.101 R)
• M25: 11,106,146 km (0.082 R)
• M26: 12,306,519 km (0.093 R)
• M27: 12,499,800 km (0.067 R)
• M28: 12,759,202 km (0.092 R)
• M29: 13,680,426 km (0.092 R)
• M30: 14,216,585 km (0.115 R)
• M31: 15,102,204 km (0.117 R)
• M32: 15,378,362 km (0.114 R)
• M33: 15,865,453 km (0.086 R)
• M34: 16,075,787 km (0.06 R)
• M35: 17,285,136 km (0.104 R)
• M36: 19,190,415 km (0.12 R)
• M37: 19,790,003 km (0.071 R)
• M38: 19,940,798 km (0.063 R)
• M39: 20,319,580 km (0.057 R)
• M40: 21,936,134 km (0.066 R)
• M41: 22,484,111 km (0.076 R)
• M42: 23,195,299 km (0.087 R)
• M43: 24,154,970 km (0.093 R)
• M44: 24,720,749 km (0.106 R)
• M45: 25,372,696 km (0.05 R)
• M46: 26,444,116 km (0.058 R)
• M47: 26,860,148 km (0.093 R)
• M48: 27,614,421 km (0.098 R)
• M49: 28,121,109 km (0.105 R)
• M50: 28,290,753 km (0.064 R)
• M51: 28,630,938 km (0.029 R)
• M52: 28,716,209 km (0.087 R)
• M53: 31,049,936 km (0.112 R)
• M54: 31,137,600 km (0.064 R)
• M55: 31,664,932 km (0.065 R)
• M56: 34,526,590 km (0.105 R)
• M57: 35,254,833 km (0.118 R)
• M58: 36,819,178 km (0.086 R)
• M59: 37,283,529 km (0.111 R)
• M60: 38,030,621 km (0.11 R)
• M61: 40,301,218 km (0.09 R)
• M62: 42,032,813 km (0.102 R)
• M63: 42,810,273 km (0.095 R)
• M64: 45,468,627 km (0.071 R)
• M65: 46,166,501 km (0.059 R)
• M66: 46,366,663 km (0.096 R)
• M67: 46,566,975 km (0.102 R)
• M68: 46,667,205 km (0.065 R)
• M69: 47,572,871 km (0.093 R)
• M70: 52,918,302 km (0.102 R)
• M71: 53,023,020 km (0.059 R)
• M72: 53,442,194 km (0.12 R)
• M73: 55,555,114 km (0.113 R)
• M74: 55,767,842 km (0.087 R)
• M75: 59,100,434 km (0.036 R)
• M76: 59,317,650 km (0.084 R)
• M77: 59,861,887 km (0.1 R)
• M78: 60,189,207 km (0.087 R)
• M79: 62,165,395 km (0.113 R)
• M80: 63,494,871 km (0.114 R)
• M81: 63,606,023 km (0.066 R)
• M82: 64,833,473 km (0.116 R)
• M83: 67,425,256 km (0.109 R)
• M84: 68,676,642 km (0.082 R)
• M85: 69,476,991 km (0.101 R)
• M86: 74,109,439 km (0.062 R)
• M87: 74,226,424 km (0.111 R)
• M88: 74,578,129 km (0.1 R)
• M89: 74,812,848 km (0.09 R)
• M90: 76,462,763 km (0.119 R)
• M91: 76,817,759 km (0.101 R)
• M92: 77,767,406 km (0.075 R)
• M93: 78,243,726 km (0.117 R)
• M94: 78,601,564 km (0.117 R)
• M95: 79,079,529 km (0.094 R)
• M96: 79,798,347 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 17.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.3

Radius: 5.2

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 17.46 AU - 17.74 AU

Year: 26319 Days

Day: 20.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 55,353,654 km

• M1: 257,458 km (0.117 R)
• M2: 323,730 km (0.116 R)
• M3: 442,361 km (0.098 R)
• M4: 720,314 km (0.09 R)
• M5: 980,913 km (0.102 R)
• M6: 1,088,624 km (0.091 R)
• M7: 1,786,947 km (0.113 R)
• M8: 1,865,785 km (0.107 R)
• M9: 1,972,747 km (0.11 R)
• M10: 2,109,330 km (0.106 R)
• M11: 2,596,570 km (0.111 R)
• M12: 3,149,035 km (0.079 R)
• M13: 3,373,582 km (0.112 R)
• M14: 3,636,425 km (0.12 R)
• M15: 4,607,614 km (0.107 R)
• M16: 4,679,870 km (0.11 R)
• M17: 5,196,432 km (0.073 R)
• M18: 5,423,372 km (0.097 R)
• M19: 5,692,199 km (0.105 R)
• M20: 6,243,018 km (0.091 R)
• M21: 6,403,537 km (0.076 R)
• M22: 7,394,623 km (0.107 R)
• M23: 7,607,052 km (0.065 R)
• M24: 8,125,109 km (0.106 R)
• M25: 8,432,533 km (0.108 R)
• M26: 9,104,227 km (0.066 R)
• M27: 9,607,624 km (0.091 R)
• M28: 9,700,076 km (0.079 R)
• M29: 10,784,959 km (0.094 R)
• M30: 10,832,980 km (0.06 R)
• M31: 10,881,151 km (0.109 R)
• M32: 11,171,221 km (0.115 R)
• M33: 11,562,120 km (0.116 R)
• M34: 11,611,188 km (0.082 R)
• M35: 11,858,174 km (0.06 R)
• M36: 12,256,703 km (0.119 R)
• M37: 12,407,348 km (0.06 R)
• M38: 13,530,529 km (0.047 R)
• M39: 15,060,167 km (0.116 R)
• M40: 15,545,912 km (0.039 R)
• M41: 15,654,520 km (0.062 R)
• M42: 16,366,755 km (0.102 R)
• M43: 16,421,957 km (0.038 R)
• M44: 16,810,313 km (0.078 R)
• M45: 17,257,910 km (0.116 R)
• M46: 17,314,158 km (0.06 R)
• M47: 18,107,625 km (0.092 R)
• M48: 18,508,697 km (0.072 R)
• M49: 18,854,867 km (0.06 R)
• M50: 19,495,146 km (0.072 R)
• M51: 20,201,696 km (0.096 R)
• M52: 21,760,955 km (0.11 R)
• M53: 22,126,273 km (0.048 R)
• M54: 22,309,680 km (0.078 R)
• M55: 22,371,015 km (0.08 R)
• M56: 23,607,741 km (0.071 R)
• M57: 23,795,187 km (0.094 R)
• M58: 24,297,387 km (0.118 R)
• M59: 24,549,759 km (0.093 R)
• M60: 25,760,604 km (0.05 R)
• M61: 25,953,585 km (0.111 R)
• M62: 26,405,670 km (0.11 R)
• M63: 26,535,371 km (0.119 R)
• M64: 27,317,768 km (0.067 R)
• M65: 28,638,418 km (0.027 R)
• M66: 28,704,989 km (0.096 R)
• M67: 28,905,001 km (0.036 R)
• M68: 29,440,711 km (0.056 R)
• M69: 30,386,170 km (0.112 R)
• M70: 30,454,087 km (0.058 R)
• M71: 30,794,422 km (0.102 R)
• M72: 31,204,470 km (0.072 R)
• M73: 32,723,337 km (0.09 R)
• M74: 33,631,995 km (0.098 R)
• M75: 35,975,894 km (0.033 R)
• M76: 38,298,551 km (0.11 R)
• M77: 40,072,183 km (0.116 R)
• M78: 42,402,320 km (0.084 R)
• M79: 42,478,166 km (0.097 R)
• M80: 42,706,153 km (0.103 R)
• M81: 42,858,444 km (0.088 R)
• M82: 43,392,508 km (0.089 R)
• M83: 43,775,329 km (0.11 R)
• M84: 44,159,347 km (0.051 R)
• M85: 45,317,982 km (0.107 R)
• M86: 46,486,641 km (0.079 R)
• M87: 46,643,270 km (0.09 R)
• M88: 46,878,438 km (0.098 R)
• M89: 46,956,827 km (0.101 R)
• M90: 48,218,535 km (0.1 R)
• M91: 49,571,199 km (0.1 R)
• M92: 51,097,696 km (0.044 R)
• M93: 51,340,044 km (0.098 R)
• M94: 51,745,006 km (0.071 R)
• M95: 52,639,601 km (0.095 R)
• M96: 54,279,044 km (0.11 R)

Kuiper Belt

Range: 30.8 - 57.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 502 - 16,617 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit