BD+04 123 (HR 222)
17 Planets (size proportional to Sqrt(Radius))
Sun Rock Asteroids Ice Martian Martian Ice Sub-Jovian Martian Martian Jovian Sub-Jovian Rock Jovian Rock Sub-Jovian Rock Rock See
Key
Stellar charactersistics
Stellar mass 0.83 solar masses
Stellar luminosity 0.24
Age 3.819 billion years
(30.765 billion left on main sequence)
Habitable ecosphere radius 0.490 AU

Planetary Overview
#TypeDist.MassRadius
1 Rock Rock 0.341 AU 0.158 EM 0.545 ER
2 Asteroids Asteroids 0.473 AU 0.000 EM 0.070 ER
3 Ice Ice 0.684 AU 0.988 EM 0.996 ER
4 Martian Martian 1.043 AU 0.033 EM 0.325 ER
5 Martian Martian 1.646 AU 0.347 EM 0.707 ER
6 Ice Ice 1.745 AU 0.618 EM 0.855 ER
7 Sub-Jovian Sub-Jovian 2.223 AU 6.229 EM 3.212 ER
8 Martian Martian 2.716 AU 1.679 EM 1.571 ER
9 Martian Martian 4.344 AU 0.091 EM 0.608 ER
10 Jovian Jovian 5.185 AU 49.392 EM 6.306 ER
11 Sub-Jovian Sub-Jovian 8.583 AU 8.591 EM 3.949 ER
12 Rock Rock 11.391 AU 0.340 EM 0.937 ER
13 Jovian Jovian 14.393 AU 63.580 EM 7.391 ER
14 Rock Rock 30.380 AU 0.420 EM 1.005 ER
15 Sub-Jovian Sub-Jovian 31.200 AU 1.614 EM 2.700 ER
16 Rock Rock 42.579 AU 0.085 EM 0.593 ER
17 Rock Rock 46.685 AU 0.026 EM 0.401 ER

Planet #1 Statistics
Planet typeRockRock
Tidally Locked 1 Face
Low-G, Hot, Airless, 1-Face
Distance from primary star5.1E+07 KM0.341 AU
Mass9.5E+23Kg0.158 Earth masses
Surface gravity521.5 cm/sec20.53 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature 48.8° Celcius
119.8° Fahrenheit		+34.8° C Earth temperature
+62.6° F Earth temperature
Normal temperature range
MinMax
-224.6° C
-372.3° F		 - 219.9° C
427.9° F
Equatorial radius3478.6 Km0.55 Earth radii
Density5.36 grams/cc0.97 Earth densities
Eccentricity of orbit0.059
Escape Velocity 6.0 Km/sec
Molecular weight retained44.8 and aboveNO2, O3, SO2, SO3, Kr, Xe
Axial tilt25°
Planetary albedo 0.07
Exospheric Temperature2634.38° K+1361.38° C Earth temperature
Length of year79.68 Earth days1.00 Local days
Length of day1912.23 hours
Boiling point of water-273.1° Celcius
-459.7° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.0


Planet #2 Statistics
Planet typeAsteroidsAsteroids
Resonant Spin Locked
Low-G, Cold, Airless, 1-Face
Distance from primary star7.1E+07 KM0.473 AU
Mass2E+21Kg0.000 Earth masses
Surface gravity66.0 cm/sec20.07 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature -0.0° Celcius
32.0° Fahrenheit		-14.0° C Earth temperature
-25.2° F Earth temperature
Normal temperature range
MinMax
-235.0° C
-391.0° F		 - 157.6° C
315.7° F
Equatorial radius444.8 Km0.07 Earth radii
Density5.31 grams/cc0.96 Earth densities
Eccentricity of orbit0.145
Escape Velocity 0.8 Km/sec
Molecular weight retained1433.8 and above
Axial tilt17°
Planetary albedo 0.07
Exospheric Temperature1365.03° K+92.03° C Earth temperature
Length of year130.46 Earth days1.34 Local days
Length of day2337.39 hours
Boiling point of water-273.1° Celcius
-459.7° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.0


Planet #3 Statistics
Planet typeIceIce
Cold, Icy, Arid, Cloudless, Normal atmosphere
Distance from primary star1E+08 KM0.684 AU
Mass5.9E+24Kg0.988 Earth masses
Surface gravity976.0 cm/sec21.00 Earth gees
Surface pressure 1191 millibars1.175 Earth atmospheres
Surface temperature-74.6° Celcius
-102.3° Fahrenheit		-88.6° C Earth temperature
-159.5° F Earth temperature
Normal temperature range
NightDay
-78.7° C
-109.6° F		 - -70.8° C
-95.5° F
MinMax
-98.0° C
-144.5° F		 - -52.7° C
-62.9° F
Equatorial radius6353.2 Km1 Earth radii
Density5.50 grams/cc1 Earth densities
Eccentricity of orbit0.068
Escape Velocity11.1 Km/sec
Molecular weight retained 3.2 and aboveHe, N, O, CH4, NH3, H2O, Ne, N2...
Axial tilt18°
Planetary albedo 0.70
Exospheric Temperature652.78° K-620.22° C Earth temperature
Length of year226.86 Earth days250.43 Local days
Length of day21.74 hours
Boiling point of water104.7° Celcius
220.5° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.2
Ice cover percentage99.4


Planet #4 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Unbreathably thin atmosphere
Distance from primary star1.6E+08 KM1.043 AU
Mass2E+23Kg0.033 Earth masses
Surface gravity308.7 cm/sec20.31 Earth gees
Surface pressure 1 millibars0.001 Earth atmospheres
Surface temperature-104.9° Celcius
-156.9° Fahrenheit		-118.9° C Earth temperature
-214.1° F Earth temperature
Normal temperature range
NightDay
-135.4° C
-211.7° F		 - -74.6° C
-102.3° F
MinMax
-159.0° C
-254.3° F		 - -50.9° C
-59.7° F
Equatorial radius2073.0 Km0.33 Earth radii
Density5.33 grams/cc0.97 Earth densities
Eccentricity of orbit0.002
Escape Velocity 3.6 Km/sec
Molecular weight retained13.6 and aboveN, O, CH4, NH3, H2O, Ne, N2, CO...
Axial tilt14°
Planetary albedo 0.37
Exospheric Temperature281.05° K-991.95° C Earth temperature
Length of year426.82 Earth days228.18 Local days
1.17 Earth years
Length of day44.89 hours
Boiling point of water-22.5° Celcius
-8.5° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage40.4


Planet #5 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Thin atmosphere
Distance from primary star2.5E+08 KM1.646 AU
Mass2.1E+24Kg0.347 Earth masses
Surface gravity680.5 cm/sec20.69 Earth gees
Surface pressure 147 millibars0.145 Earth atmospheres
Surface temperature-149.8° Celcius
-237.6° Fahrenheit		-163.8° C Earth temperature
-294.8° F Earth temperature
Normal temperature range
NightDay
-155.2° C
-247.3° F		 - -144.7° C
-228.4° F
MinMax
-178.5° C
-289.2° F		 - -123.3° C
-189.9° F
Equatorial radius4507.6 Km0.71 Earth radii
Density5.40 grams/cc0.98 Earth densities
Eccentricity of orbit0.088
Escape Velocity 7.8 Km/sec
Molecular weight retained 1.1 and aboveH2, He, N, O, CH4, NH3, H2O, Ne...
Axial tilt19°
Planetary albedo 0.64
Exospheric Temperature112.71° K-1160.29° C Earth temperature
Length of year846.98 Earth days1102.48 Local days
2.32 Earth years
Length of day18.44 hours
Boiling point of water53.5° Celcius
128.4° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage89.1


Planet #6 Statistics
Planet typeIceIce
Cold, Icy, Arid, Cloudless, Thin atmosphere
Distance from primary star2.6E+08 KM1.745 AU
Mass3.7E+24Kg0.618 Earth masses
Surface gravity829.6 cm/sec20.85 Earth gees
Surface pressure 466 millibars0.460 Earth atmospheres
Surface temperature-154.4° Celcius
-245.9° Fahrenheit		-168.4° C Earth temperature
-303.1° F Earth temperature
Normal temperature range
NightDay
-157.3° C
-251.2° F		 - -151.6° C
-240.9° F
MinMax
-175.3° C
-283.5° F		 - -135.3° C
-211.6° F
Equatorial radius5450.5 Km0.85 Earth radii
Density5.45 grams/cc0.99 Earth densities
Eccentricity of orbit0.010
Escape Velocity 9.5 Km/sec
Molecular weight retained 0.7 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt34°
Planetary albedo 0.70
Exospheric Temperature100.31° K-1172.69° C Earth temperature
Length of year924.31 Earth days1331.09 Local days
2.53 Earth years
Length of day16.67 hours
Boiling point of water79.9° Celcius
175.9° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage100.0


Planet #7 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star3.3E+08 KM2.223 AU
Mass3.7E+25Kg6.229 Earth masses
4.905 Earth masses dust
1.324 Earth masses gas
Equatorial radius20488.0 Km3.2 Earth radii
Density1.03 grams/cc0.19 Earth densities
Eccentricity of orbit0.026
Escape Velocity15.6 Km/sec
Molecular weight retained 0.2 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt32°
Planetary albedo 0.53
Exospheric Temperature 61.83° K-1211.17° C Earth temperature
Length of year1328.69 Earth days1897.86 Local days
3.64 Earth years
Length of day16.80 hours


Planet #8 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Normal atmosphere
Distance from primary star4.1E+08 KM2.716 AU
Mass1E+25Kg1.679 Earth masses
Surface gravity666.7 cm/sec20.68 Earth gees
Surface pressure 1843 millibars1.819 Earth atmospheres
Surface temperature-152.2° Celcius
-242.0° Fahrenheit		-166.2° C Earth temperature
-299.2° F Earth temperature
Normal temperature range
NightDay
-154.0° C
-245.1° F		 - -150.6° C
-239.1° F
MinMax
-168.6° C
-271.4° F		 - -137.3° C
-215.1° F
Equatorial radius10021.8 Km1.6 Earth radii
Density2.38 grams/cc0.43 Earth densities
Eccentricity of orbit0.040
Escape Velocity11.6 Km/sec
Molecular weight retained 0.2 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt19°
Planetary albedo 0.41
Exospheric Temperature 41.42° K-1231.58° C Earth temperature
Length of year1794.58 Earth days2320.43 Local days
4.91 Earth years
Length of day18.56 hours
Boiling point of water117.5° Celcius
243.5° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage46.8


Planet #9 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Unbreathably thin atmosphere
Distance from primary star6.5E+08 KM4.344 AU
Mass5.5E+23Kg0.091 Earth masses
Surface gravity242.2 cm/sec20.25 Earth gees
Surface pressure 5 millibars0.005 Earth atmospheres
Surface temperature-186.0° Celcius
-302.8° Fahrenheit		-200.0° C Earth temperature
-360.0° F Earth temperature
Normal temperature range
NightDay
-197.1° C
-322.7° F		 - -175.0° C
-283.0° F
MinMax
-218.1° C
-360.7° F		 - -154.9° C
-246.8° F
Equatorial radius3876.7 Km0.61 Earth radii
Density2.24 grams/cc0.41 Earth densities
Eccentricity of orbit0.070
Escape Velocity 4.3 Km/sec
Molecular weight retained 0.6 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt23°
Planetary albedo 0.24
Exospheric Temperature 16.19° K-1256.81° C Earth temperature
Length of year3630.51 Earth days2829.56 Local days
9.94 Earth years
Length of day30.79 hours
Boiling point of water-3.8° Celcius
25.1° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage17.0


Planet #10 Statistics
Planet typeJovianJovian
Distance from primary star7.8E+08 KM5.185 AU
Mass3E+26Kg49.392 Earth masses
10.735 Earth masses dust
38.657 Earth masses gas
Equatorial radius40219.9 Km6.3 Earth radii
Density1.08 grams/cc0.2 Earth densities
Eccentricity of orbit0.012
Escape Velocity31.3 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt28°
Planetary albedo 0.47
Exospheric Temperature 11.36° K-1261.64° C Earth temperature
Length of year4733.11 Earth days9698.27 Local days
12.96 Earth years
Length of day11.71 hours


Planet #11 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star1.3E+09 KM8.583 AU
Mass5.1E+25Kg8.591 Earth masses
3.544 Earth masses dust
5.048 Earth masses gas
Equatorial radius25184.6 Km3.9 Earth radii
Density0.77 grams/cc0.14 Earth densities
Eccentricity of orbit0.017
Escape Velocity16.5 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt48°
Planetary albedo 0.53
Exospheric Temperature 4.15° K-1268.85° C Earth temperature
Length of year10081.71 Earth days13759.16 Local days
27.60 Earth years
Length of day17.59 hours


Planet #12 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star1.7E+09 KM11.391 AU
Mass2E+24Kg0.340 Earth masses
Surface gravity379.1 cm/sec20.39 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-218.4° Celcius
-361.2° Fahrenheit		-232.4° C Earth temperature
-418.4° F Earth temperature
Normal temperature range
NightDay
-224.4° C
-371.9° F		 - -212.5° C
-350.4° F
MinMax
-241.7° C
-403.0° F		 - -195.9° C
-320.6° F
Equatorial radius5977.4 Km0.94 Earth radii
Density2.27 grams/cc0.41 Earth densities
Eccentricity of orbit0.018
Escape Velocity 6.7 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt28°
Planetary albedo 0.15
Exospheric Temperature 2.35° K-1270.65° C Earth temperature
Length of year15413.80 Earth days15028.59 Local days
42.20 Earth years
Length of day24.62 hours
Boiling point of water-41.8° Celcius
-43.2° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.1


Planet #13 Statistics
Planet typeJovianJovian
Distance from primary star2.2E+09 KM14.393 AU
Mass3.8E+26Kg63.580 Earth masses
8.979 Earth masses dust
54.601 Earth masses gas
Equatorial radius47138.5 Km7.4 Earth radii
Density0.87 grams/cc0.16 Earth densities
Eccentricity of orbit0.068
Escape Velocity32.8 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt46°
Planetary albedo 0.48
Exospheric Temperature 1.47° K-1271.53° C Earth temperature
Length of year21888.92 Earth days43417.96 Local days
59.93 Earth years
Length of day12.10 hours


Planet #14 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star4.5E+09 KM30.380 AU
Mass2.5E+24Kg0.420 Earth masses
Surface gravity408.0 cm/sec20.42 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-239.6° Celcius
-399.3° Fahrenheit		-253.6° C Earth temperature
-456.5° F Earth temperature
Normal temperature range
NightDay
-243.0° C
-405.4° F		 - -236.1° C
-392.9° F
MinMax
-257.3° C
-431.2° F		 - -221.2° C
-366.2° F
Equatorial radius6408.9 Km1 Earth radii
Density2.28 grams/cc0.41 Earth densities
Eccentricity of orbit0.000
Escape Velocity 7.2 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt28°
Planetary albedo 0.15
Exospheric Temperature 0.33° K-1272.67° C Earth temperature
Length of year67133.15 Earth days67907.88 Local days
183.80 Earth years
Length of day23.73 hours
Boiling point of water-37.2° Celcius
-34.9° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.1


Planet #15 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star4.7E+09 KM31.200 AU
Mass9.6E+24Kg1.614 Earth masses
0.940 Earth masses dust
0.674 Earth masses gas
Equatorial radius17220.6 Km2.7 Earth radii
Density0.45 grams/cc0.082 Earth densities
Eccentricity of orbit0.038
Escape Velocity 8.6 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt49°
Planetary albedo 0.48
Exospheric Temperature 0.31° K-1272.69° C Earth temperature
Length of year69869.68 Earth days60444.44 Local days
191.29 Earth years
Length of day27.74 hours


Planet #16 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star6.4E+09 KM42.579 AU
Mass5.1E+23Kg0.085 Earth masses
Surface gravity236.2 cm/sec20.24 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-245.0° Celcius
-408.9° Fahrenheit		-259.0° C Earth temperature
-466.1° F Earth temperature
Normal temperature range
NightDay
-248.5° C
-415.4° F		 - -241.1° C
-402.0° F
MinMax
-259.9° C
-435.9° F		 - -229.0° C
-380.1° F
Equatorial radius3781.5 Km0.59 Earth radii
Density2.23 grams/cc0.4 Earth densities
Eccentricity of orbit0.002
Escape Velocity 4.2 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt50°
Planetary albedo 0.15
Exospheric Temperature 0.17° K-1272.83° C Earth temperature
Length of year111391.80 Earth days85723.57 Local days
304.97 Earth years
Length of day31.19 hours
Boiling point of water-67.9° Celcius
-90.2° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.1


Planet #17 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star7E+09 KM46.685 AU
Mass1.6E+23Kg0.026 Earth masses
Surface gravity158.8 cm/sec20.16 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-246.2° Celcius
-411.2° Fahrenheit		-260.2° C Earth temperature
-468.4° F Earth temperature
Normal temperature range
NightDay
-250.3° C
-418.5° F		 - -241.9° C
-403.5° F
MinMax
-262.4° C
-440.3° F		 - -228.0° C
-378.5° F
Equatorial radius2557.2 Km0.4 Earth radii
Density2.22 grams/cc0.4 Earth densities
Eccentricity of orbit0.022
Escape Velocity 2.9 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt38°
Planetary albedo 0.15
Exospheric Temperature 0.14° K-1272.86° C Earth temperature
Length of year127887.25 Earth days80710.09 Local days
350.13 Earth years
Length of day38.03 hours
Boiling point of water-85.9° Celcius
-122.5° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.0


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