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Doubles in session


Current system
19308+6337
HU 951


Nearby doubles
7' : 19301+6342
STI 900

15' : 19299+6324
TDT1500

16' : 19285+6335
LDS2437

19' : 19312+6319
BU 655AB

35' : 19344+6313
STI 902

36' : 19260+6353
DAL 26

38' : 19299+6300
ES 1847

44' : 19370+6350
STF2564

47' : 19376+6344
MLR 56AB

48' : 19374+6319
CVR 216

53' : 19343+6250
ES 1848

54' : 19386+6329
HDS2787

55' : 19230+6323
STI 894

58' : 19242+6414
LDS2434

63' : 19222+6403
STI 892

68' : 19219+6306
MLR 50

68' : 19341+6232
LDS2772

70' : 19210+6405
STI 888

72' : 19213+6412
STI 890

76' : 19237+6437
ES 1916

77' : 19202+6404
LDS2433

83' : 19407+6428
TDT1623

85' : 19212+6433
ES 194

86' : 19412+6249
LDS2778

87' : 19198+6423
BUP 188

87' : 19191+6416
MLR 64



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19308+6337 HU 951

 
 
19h 30m 47.57s +63° 37' 04.3" P.A. 197.00 sep 0.2 mag 10.05,10.36 Sp F dist. 232.02 pc (756.85 l.y.)
 
 
Coord 2000 19308+6337 Discov num HU  951 Comp Coord arcsec 2000 19 30 47.57 +63 37 04.3
Date first 1904 Date last 2008 Obs 22
Pa first 287 Pa last 197 P.A. Now (θ) 234.4°
Sep first 0.2 Sep last 0.194 Sep. Now (ρ) 0.206"
Mag pri 10.05 Mag sec 10.36 delta mag (ΔM) 0.31 Spectral class F (yellow-white)
Pri motion ra +018 Sec motion ra
Pri motion dec +002 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco SAO 18375 HIP 95955 ADS 12577
BD BD+63 1530 Distance 232.02 Distance ly 756.85
 
 
ORBITAL ELEMENTS
 
 
Period (P)153.74y Periastron (T)1967.84y Semi-major axis (a)0.204a
Eccentricity (e)0.225 Inclination (i)32.3° Longitude of periastron (ω)316.3°
Node (Ω)126.2° Notesn ReferenceHrt2014b
Equinox2000 Last observation2008 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 179.2 0.181
2001 181.7 0.181
2002 184.1 0.182
2003 186.5 0.182
2004 188.9 0.183
2005 191.3 0.184
2006 193.7 0.184
2007 196.0 0.185
2008 198.4 0.186
2009 200.7 0.187
2010 203.0 0.188
2011 205.3 0.189
2012 207.5 0.190
2013 209.7 0.191
2014 211.9 0.192
2015 214.1 0.193
2016 216.2 0.194
2017 218.4 0.195
2018 220.5 0.196
2019 222.5 0.198
2020 224.6 0.199
2021 226.6 0.200
2022 228.6 0.202
2023 230.5 0.203
2024 232.5 0.204
2025 234.4 0.206
2026 236.3 0.207
2027 238.1 0.209
2028 239.9 0.210
2029 241.8 0.212
2030 243.5 0.213
2031 245.3 0.215
2032 247.0 0.216
2033 248.7 0.217
2034 250.4 0.219
2035 252.1 0.220
2036 253.7 0.222
2037 255.3 0.223
2038 256.9 0.224
2039 258.5 0.226
2040 260.1 0.227
2041 261.7 0.228
2042 263.2 0.229
2043 264.7 0.230
2044 266.2 0.232
2045 267.7 0.233
2046 269.2 0.234
2047 270.6 0.234
2048 272.1 0.235
2049 273.5 0.236
2050 275.0 0.237


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds19308%2B6337b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic