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Doubles in session


Current system
20048+0109
TOK 699
HD 190412


Nearby doubles
8' : 20052+0114
UC 4078

20' : 20060+0102
TDS1041

36' : 20032+0042
HDO 316AB

43' : 20053+0027
HJ 2927AB

43' : 20035+0147
BAL1542

44' : 20075+0057
UC 4090

45' : 20018+0110
A 2276

45' : 20022+0049
BAL1211

45' : 20027-0036
HJ 2921

51' : 20026+0148
DAM 384AB

53' : 20025+0149
HJ 5510

54' : 20023+0147
DAM 383

54' : 20075-0037
H 4 34

54' : 20061+0159
HLD 156

55' : 20012+0120
A 2275

57' : 20083+0052
BAL1213

57' : 20068+0157
A 2278AB

57' : 20080-0041
SHY 325

57' : 20015+0040
HDO 315

63' : 20048-0007
TDT1955

64' : 20066+0207
HJ 902

65' : 20090+0127
BAL1544

66' : 20078+0021
BAL1212

67' : 20089-0047
UC 4103

68' : 20027+0009
GWP2918

69' : 20031+0213
BAL1541



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.

20048+0109 TOK 699 (HD 190412)

 
 
20h 04m 46.61s +01° 09' 21.6" P.A. 267.00 sep 0.2 mag 7.70,11.60 Sp G5 dist. 38.26 pc (124.8 l.y.)
 
 
Coord 2000 20048+0109 Discov num TOK 699 Comp Coord arcsec 2000 20 04 46.61 +01 09 21.6
Date first 2015 Date last 2021 Obs 14
Pa first 318 Pa last 266.6 P.A. Now (θ) 266.6°
Sep first 0.2 Sep last 0.154 Sep. Now (ρ) 0.154"
Mag pri 7.70 Mag sec 11.60 delta mag (ΔM) 3.9 Spectral class G5 (yellow)
Pri motion ra +011 Sec motion ra
Pri motion dec -038 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 190412 Constellation Aquila SAO 125417 HIP 98878
Tycho2 0494-00788-1 Gaia DR2 4237555510387302400 HD 190412 BD BD+00 4408
Distance 38.26 Distance ly 124.8
 
 
ORBITAL ELEMENTS
 
 
Period (P)7.446y± 0.025 Periastron (T)2018.701y± 0.034 Semi-major axis (a)0.15a± 0.003
Eccentricity (e)0.202± 0.009 Inclination (i)32.3°± 3 Longitude of periastron (ω)239.3°± 3
Node (Ω)247.7°± 2.8 Notes ReferenceTok2020i
Equinox2000 Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 299.6 0.161
2001 337.7 0.147
2002 21.5 0.141
2003 69.7 0.130
2004 138.3 0.103
2005 211.3 0.130
2006 252.4 0.163
2007 284.7 0.167
2008 319.8 0.153
2009 1.5 0.143
2010 47.3 0.137
2011 103.5 0.113
2012 183.4 0.111
2013 236.4 0.152
2014 270.4 0.168
2015 303.4 0.160
2016 342.2 0.146
2017 26.5 0.140
2018 75.6 0.127
2019 147.5 0.103
2020 216.8 0.135
2021 256.1 0.165
2022 288.2 0.166
2023 324.0 0.152
2024 6.3 0.142
2025 52.5 0.136
2026 111.3 0.110
2027 191.0 0.115
2028 240.5 0.155
2029 273.9 0.168
2030 307.2 0.158


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds20048%2B0109b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 20048+0109 TOK 699 (HD 190412) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2020i orb+j Tokovinin, A. & Latham, D.W. 2020AJ....160..251T
Tok2020i +St AJ 160, 251, 2020
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20048+0109 TOK 699 2015 2 318 0.2 7.70 11.60 G5 200446.61+010921.6
20048+0109 TOK 699 2017 3 46 0.1 7.70 11.60 G5 200446.61+010921.6
20048+0109 TOK 699 2018 9 135 0.1 7.70 11.60 G5 O 200446.61+010921.6
20048+0109 TOK 699 2019 11 209 0.1 7.70 11.60 G5 O 200446.61+010921.6
20048+0109 TOK 699 2020 13 247 0.2 7.70 11.60 G5 O 200446.61+010921.6
20048+0109 TOK 699 2021 14 267 0.2 7.70 11.60 G5 O 200446.61+010921.6

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 20048+0109 TOK 699 (HD 190412) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20048+0109 TOK 699 (HD 190412) : MEASURES
 
 
No records found.

 
 
WDS 20048+0109 (HD 190412) : VIRTUAL EYEPIECE
 
 

20048+0109 TOK 699A mag 7.7 Sp G5 20048+0109 TOK 699B sep 0.1 P.A. 266.60 mag 11.6 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20048+0109 (HD 190412) : ALADIN DSS IMAGE @ 20h 04m 46.61s +01° 09' 21.6"
 
 
 
 
WDS 20048+0109 TOK 699 (HD 190412) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20048+0109 TOK 699 distance=1' 20052+0114 UC 4078 distance=8' 20060+0102 TDS1041 distance=20' 20032+0042 HDO 316AB distance=36' 20032+0042 HDO 316AC distance=36' 20053+0027 HJ 2927AB distance=43' 20035+0147 BAL1542 distance=43' 20075+0057 UC 4090 distance=44' 20053+0027 BU 1482BC distance=44' 20018+0110 A 2276 distance=45' 20022+0049 BAL1211 distance=45' 20027-0036 HJ 2921 distance=45' 20026+0148 DAM 384AB distance=51' 20026+0148 DAM 384AC distance=51' 20025+0149 HJ 5510 distance=53' 20023+0147 DAM 383 distance=54' 20075-0037 H 4 34 distance=54' 20061+0159 HLD 156 distance=54' 20012+0120 A 2275 distance=55' 20083+0052 BAL1213 distance=57' 20068+0157 A 2278AB distance=57' 20068+0157 A 2278AC distance=57' 20080-0041 SHY 325 distance=57' 20015+0040 HDO 315 distance=57' 20048-0007 TDT1955 distance=63' 20066+0207 HJ 902 distance=64' 20090+0127 BAL1544 distance=65' 20078+0021 BAL1212 distance=66' 20089-0047 UC 4103 distance=67' 20027+0009 GWP2918 distance=68' 20031+0213 BAL1541 distance=69' 20017-0012 H 1 93AB distance=75' 20017-0012 H 1 93AC distance=75' 20096+0132 TDT2036 distance=77' 20074+0000 J 2570AB distance=79' 20074+0000 J 2570AC distance=79' 20064+0225 UC 4085 distance=80' 20102+0043 GRV 317 distance=86' 19593+0044 BAL1209AB distance=86' 20106+0102 DAM 197 distance=88' 20025+0232 BAL2014 distance=89' 20106+0057 J 2700AB distance=91' 20106+0057 DAM 196AC distance=91' 20103+0149 BAL1545 distance=92' 19597-0019 BAL 919 distance=92' 19589+0149 HJ 2914 distance=97' 20102+0204 HJ 2933 distance=98' 20087+0227 UC 4099 distance=98' 20113-0049 MKT 10Aa,Ab distance=100' 20113-0049 ISO 12Aa,Ac distance=100' 20113-0049 BU 1540AB distance=100' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20048+0109 TOK 699 267 0.2 1
Show 20052+0114 UC 4078 82 48.3 8
Show 20060+0102 TDS1041 257 1.2 20
Show 20032+0042 HDO 316 AB 143 4.5 36
Show 20032+0042 HDO 316 AC 189 16.4 36
Show 20053+0027 HJ 2927 AB 124 23.6 43
Show 20035+0147 BAL1542 236 10.2 43
Show 20075+0057 UC 4090 233 21.3 44
Show 20053+0027 BU 1482 BC 178 3.8 44
Show 20018+0110 A 2276 59 3.8 45
Show 20022+0049 BAL1211 80 12.1 45
Show 20027-0036 HJ 2921 341 21.7 45
Show 20026+0148 DAM 384 AB 350 14.9 51
Show 20026+0148 DAM 384 AC 343 5.4 51
Show 20025+0149 HJ 5510 28 10.9 53
Show 20023+0147 DAM 383 103 5.2 54
Show 20075-0037 H 4 34 198 49.7 54
Show 20061+0159 HLD 156 255 1.3 54
Show 20012+0120 A 2275 146 0.4 55
Show 20083+0052 BAL1213 330 5.5 57
Show 20068+0157 A 2278 AB 214 0.9 57
Show 20068+0157 A 2278 AC 355 22.5 57
Show 20080-0041 SHY 325 228 999.9 57
Show 20015+0040 HDO 315 203 8.7 57
Show 20048-0007 TDT1955 258 0.5 63
Show 20066+0207 HJ 902 17 7.1 64
Show 20090+0127 BAL1544 143 6.6 65
Show 20078+0021 BAL1212 114 12.3 66
Show 20089-0047 UC 4103 119 6.7 67
Show 20027+0009 GWP2918 49 94.5 68
Show 20031+0213 BAL1541 29 8.8 69
Show 20017-0012 H 1 93 AB 297 1.8 75
Show 20017-0012 H 1 93 AC 27.4 75
Show 20096+0132 TDT2036 76 0.5 77
Show 20074+0000 J 2570 AB 79 3.6 79
Show 20074+0000 J 2570 AC 302 11.4 79
Show 20064+0225 UC 4085 155 39.4 80
Show 20102+0043 GRV 317 46 45.1 86
Show 19593+0044 BAL1209 AB 218 12.5 86
Show 20106+0102 DAM 197 164 4.9 88
Show 20025+0232 BAL2014 35 11.6 89
Show 20106+0057 J 2700 AB 179 6.1 91
Show 20106+0057 DAM 196 AC 73 7.5 91
Show 20103+0149 BAL1545 345 15.3 92
Show 19597-0019 BAL 919 34 7.8 92
Show 19589+0149 HJ 2914 209 13.5 97
Show 20102+0204 HJ 2933 26 21.7 98
Show 20087+0227 UC 4099 280 61.1 98
Show 20113-0049 MKT 10 Aa,Ab 88 0.0 100
Show 20113-0049 ISO 12 Aa,Ac 44 1.0 100
Show 20113-0049 BU 1540 AB 259 115.8 100

 
 
WDS 20048+0109 : COMPONENTS
 
 
  A
B pa=266.6°
sep=0.15"
 
 
20048+0109 A
 
 
Componente originario normalizzato AB Name HD 190412 Coord arcsec 2000 200446.61+010921.6 Mag 7.7
Spectral class G5 (yellow) PmRA 11.00 PmDE -38.0 SAO 125417
HIP 98878 Tycho2 0494-00788-1 HD 190412 BD BD+00 4408
Tycho2
Tycho2 0494-00788-1 Pflag RAmdeg 301.19419640 DEmdeg 1.15603857
PmRA -0.6 PmDE -25.8 E RAmdeg 5 E DEmdeg 6
E pmRA 0.9 E pmDE 0.9 EpRAm 1990.93 EpDEm 1990.25
Num 18 Q RAmdeg 1.2 Q DEmdeg 1.2 Q pmRA 1.1
Q pmDE 1.2 BTmag 8.545 E BTmag 0.017 VTmag 7.764
E VTmag 0.011 Prox 999 TYC T HIP 98878
CCDM RAdeg 301.19419806 DEdeg 1.15610056 EpRA 1990 1.71
EpDE 1990 1.31 E RAdeg 4.6 E DEdeg 5.9 Posflg
Corr -0.3
SAO
SAO 125417 DelFlag RA1950 PmRA1950 0.0007
DE1950 PmDE1950 -0.029 Vmag 8 SpType G5
Double code Source 31 CatNum 5058 DM BD+00 4408
DMcomp BDsup HD 190412 M HD 0
GC RA1950rad 5.24572699 DE1950rad 0.01768784 PmRA2000 0.0009
PmDE2000 -0.031
Hipparcos
Catalog H HIP 98878 Proxy RAhms 20 04 46.61
DEdms +01 09 22.0 Vmag 7.69 VarFlag R Vmag H
RAdeg 301.194 DEdeg 1.1561 AstroRef Plx 30.13
CCDM N CCDM Nsys Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD 190412 BD BD+00 4408
CD CP Dm number +00 4408 VIred 0.76
SpType G5 R SpType Coord arcsec 2000 200446.61+010922.0
Hipparcos 2
HIP 98878 Sn 5 So 1 Nc 1
RArad 5.2568304579 DErad 0.0201777442 Plx 26.14 PmRA 10.79
PmDE -38.34 E RArad 1.26 E DErad 0.9 E Plx 1.41
E pmRA 1.96 E pmDE 1.6 Hpmag 7.8266 E Hpmag 0.0012
SHp 0.009 VA 0 BV 0.705 E BV 0.011
VI 0.76
 
 
20048+0109 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200446.60+010921.6 Mag 11.6 Calc delta mag 3.9
Calc coord yes