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Current system
21058-5744
HU 1625
HD 200424


Nearby doubles
12' : 21067-5735
TOI2201

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TSN 37

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HU 1627

83' : 21143-5831
B 519

83' : 20561-5718
BRT2828

85' : 21046-5621
RST1081AB

93' : 21173-5758
NSN 447

98' : 20548-5827
B 2487

104' : 21120-5916
B 518

105' : 20574-5905
COO 241

113' : 21143-5615
HU 1534

114' : 21144-5916
TDT2848

118' : 20564-5916
I 129AB

123' : 21190-5849
HU 1628

134' : 21146-5552
HU 1535

135' : 21149-5552
WSP 46AB

136' : 21069-5529
HJ 5241

136' : 20559-5555
HJ 5232

140' : 21116-5533
UC 4398

142' : 20516-5623
HJ 5223

142' : 21024-5525
BRT3187

145' : 21042-5520
RST5552AB

149' : 20505-5911
UC 4307

149' : 21126-6003
I 258



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Binary Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21058-5744 HU 1625 (HD 200424)

 
 
21h 05m 48.62s -57° 44' 11.1" P.A. 288.00 sep 0.1 mag 8.86,9.50 Sp F5V dist. 198.41 pc (647.21 l.y.)
 
 
Coord 2000 21058-5744 Discov num HU 1625 Comp Coord arcsec 2000 21 05 48.62 -57 44 11.1
Date first 1914 Date last 2021 Obs 11
Pa first 230 Pa last 287.5 P.A. Now (θ) 287.5°
Sep first 0.6 Sep last 0.098 Sep. Now (ρ) 0.098"
Mag pri 8.86 Mag sec 9.50 delta mag (ΔM) 0.64 Spectral class F5V (yellow-white)
Pri motion ra -009 Sec motion ra
Pri motion dec +000 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 200424 Constellation Indus SAO 246859 HIP 104129
Tycho2 8800-00296-1 Gaia DR2 6456767276885150208 HD 200424 CP CP-58 7805
Distance 198.41 Distance ly 647.21
 
 
ORBITAL ELEMENTS
 
 
Period (P)560.04y Periastron (T)2072.29y Semi-major axis (a)0.657a
Eccentricity (e)0 Inclination (i)81.6° Longitude of periastron (ω)118.5°
Node (Ω)222.1° Notes ReferenceTok2015c
Equinox2000 Last observation2014 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 246.3 0.222
2001 247.2 0.216
2002 248.1 0.210
2003 249.0 0.204
2004 250.0 0.197
2005 251.1 0.191
2006 252.3 0.185
2007 253.5 0.179
2008 254.8 0.173
2009 256.2 0.167
2010 257.7 0.162
2011 259.3 0.156
2012 261.0 0.150
2013 262.9 0.145
2014 264.9 0.140
2015 267.0 0.134
2016 269.4 0.129
2017 271.9 0.125
2018 274.6 0.120
2019 277.5 0.116
2020 280.6 0.112
2021 283.9 0.109
2022 287.5 0.105
2023 291.3 0.103
2024 295.2 0.100
2025 299.3 0.098
2026 303.6 0.097
2027 307.9 0.096
2028 312.3 0.096
2029 316.7 0.096
2030 321.0 0.097
2031 325.3 0.099
2032 329.4 0.100
2033 333.3 0.103
2034 337.0 0.106
2035 340.6 0.109
2036 343.9 0.112
2037 347.0 0.116
2038 349.9 0.121
2039 352.6 0.125
2040 355.0 0.130
2041 357.4 0.135
2042 359.5 0.140
2043 1.5 0.145
2044 3.3 0.151
2045 5.1 0.156
2046 6.7 0.162
2047 8.2 0.168
2048 9.5 0.174
2049 10.8 0.180
2050 12.1 0.186


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds21058-5744a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic