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Doubles in session


Current system
15420+0027
A 2176
HD 140122


Nearby doubles
22' : 15419-0049
J 444

24' : 15413+0007
BAL1177AB

26' : 15426+0052
FMR 120

47' : 15415+0113
SKF 915

64' : 15378+0017
LDS4575

66' : 15460+0001
A 2231

73' : 15467+0045
LDS6306

77' : 15370-0041
HJ 1276

79' : 15441+0140
GWP2550

80' : 15473-0016
SOZ 15

87' : 15470-0012
GRV1116

89' : 15420+0156
BAL1906

99' : 15395-0104
RST5028

101' : 15353-0018
CBL 492

105' : 15436+0209
BAL1907

105' : 15351+0045
HDS2189

110' : 15471+0146
CBL 497

114' : 15473+0149
RAO 664

114' : 15482+0134
EIS 1AB

119' : 15474+0154
GWP2553

122' : 15454-0123
STF1968

124' : 15399+0227
SLE 926

127' : 15374+0214
SLW1116

127' : 15398+0230
CVR 168

128' : 15440+0231
A 2230AB

130' : 15505+0055
KPP3297



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.

15420+0027 A 2176 (HD 140122)

 
 
15h 42m 01.39s +00° 27' 25.5" P.A. 216.00 sep 0.2 mag 7.70,8.40 Sp A1IV dist. 163.4 pc (533.01 l.y.)
 
 
Coord 2000 15420+0027 Discov num A  2176 Comp Coord arcsec 2000 15 42 01.39 +00 27 25.5
Date first 1910 Date last 2021 Obs 64
Pa first 206 Pa last 216.1 P.A. Now (θ) 219.1°
Sep first 0.2 Sep last 0.201 Sep. Now (ρ) 0.203"
Mag pri 7.70 Mag sec 8.40 delta mag (ΔM) 0.7 Spectral class A1IV (white)
Pri motion ra +021 Sec motion ra
Pri motion dec -018 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 140122 Constellation Serpens SAO 121129 HIP 76892
Tycho2 0351-00032-1 Gaia DR2 4416620427889770112 HD 140122 ADS 9747
BD BD+00 3389 Distance 163.4 Distance ly 533.01
 
 
ORBITAL ELEMENTS
 
 
Period (P)52.68y± 2.04 Periastron (T)1987.16y± 0.38 Semi-major axis (a)0.148a± 0.008
Eccentricity (e)0.653± 0.027 Inclination (i)27.2°± 7.4 Longitude of periastron (ω)279.3°± 9.9
Node (Ω)97.7°± 12.9 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 165.1 0.178
2001 168.2 0.183
2002 171.2 0.189
2003 173.9 0.193
2004 176.6 0.198
2005 179.1 0.202
2006 181.5 0.205
2007 183.9 0.208
2008 186.2 0.211
2009 188.4 0.213
2010 190.6 0.215
2011 192.8 0.216
2012 194.9 0.217
2013 197.1 0.218
2014 199.2 0.218
2015 201.3 0.218
2016 203.4 0.218
2017 205.6 0.217
2018 207.7 0.216
2019 209.9 0.214
2020 212.1 0.212
2021 214.4 0.209
2022 216.7 0.206
2023 219.1 0.203
2024 221.6 0.199
2025 224.2 0.194
2026 227.0 0.189
2027 229.9 0.184
2028 233.0 0.177
2029 236.3 0.170
2030 239.9 0.163


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


 
  


wds15420%2B0027a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 15420+0027 A 2176 (HD 140122) : NOTES
 
 
discov_num notes refcode
A 2176 One component is SB1, P = 10.9 d. Only elements P, T, and a have been Sta1978c
amended by Starikova (1978) from the orbit of Couteau (1960). Cou1960c
1986.395: Separation for this partially resolved pair was calculated
under the assumption of zero or otherwise known magnitude difference. Tok1985
 
 
REFERENCES
 
 
refcode metd author reference
Cou1960c orb - Couteau, P. 1960JO.....43...13C
Cou1960c J. Obs. 43, 13, 1960
Sta1978c orb - Starikova, G.A. 1978ATsir1002....3S
Sta1978c Astron. Tsirk. #1002, 3, 1978
Tok1985 Ig u Tokovinin, A.A. 1985A&AS...61..483T
Tok1985 A&AS 61, 483, 1985
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15420+0027 A 2176 2008 58 188 0.2 8.00 8.00 A0 NO 154201.39+002725.5
15420+0027 A 2176 2009 60 189 0.2 8.00 8.00 A0 NO 154201.39+002725.5
15420+0027 A 2176 2014 62 200 0.2 8.00 8.00 A0 NO 154201.39+002725.5
15420+0027 A 2176 2018 63 28 0.2 8.00 8.00 A0 NO 154201.39+002725.5
15420+0027 A 2176 2021 64 216 0.2 7.70 8.40 A1IV NO 154201.39+002725.5

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

 
 
WDS 15420+0027 A 2176 (HD 140122) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15420+0027 A 2176 (HD 140122) : MEASURES
 
 
No records found.

 
 
WDS 15420+0027 (HD 140122) : VIRTUAL EYEPIECE
 
 

15420+0027 A 2176A mag 7.7 Sp A1IV 15420+0027 A 2176B sep 0.2 P.A. 216.10 mag 8.4 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 15420+0027 (HD 140122) : ALADIN DSS IMAGE @ 15h 42m 01.39s +00° 27' 25.5"
 
 
 
 
WDS 15420+0027 A 2176 (HD 140122) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15420+0027 A 2176 distance=0' 15419-0049 J 444 distance=22' 15413+0007 BAL1177AB distance=24' 15413+0007 WLY 7BC distance=24' 15426+0052 FMR 120 distance=26' 15415+0113 SKF 915 distance=47' 15378+0017 LDS4575 distance=64' 15460+0001 A 2231 distance=66' 15467+0045 LDS6306 distance=73' 15370-0041 HJ 1276 distance=77' 15441+0140 GWP2550 distance=79' 15473-0016 SOZ 15 distance=80' 15470-0012 GRV1116 distance=87' 15420+0156 BAL1906 distance=89' 15395-0104 RST5028 distance=99' 15353-0018 CBL 492 distance=101' 15436+0209 BAL1907 distance=105' 15351+0045 HDS2189 distance=105' 15471+0146 CBL 497 distance=110' 15473+0149 RAO 664 distance=114' 15482+0134 EIS 1AB distance=114' 15482+0134 LAF 55AC distance=114' 15482+0134 LAF 55AD distance=114' 15482+0134 LAF 55AE distance=114' 15482+0134 LAF 55AF distance=114' 15482+0134 LAF 55AG distance=114' 15482+0134 LAF 55AH distance=114' 15482+0134 LAF 55AI distance=114' 15474+0154 GWP2553 distance=119' 15454-0123 STF1968 distance=122' 15399+0227 SLE 926 distance=124' 15440+0231 A 2230CE distance=124' 15374+0214 SLW1116 distance=127' 15398+0230 CVR 168 distance=127' 15440+0231 A 2230AB distance=128' 15440+0231 A 2230AC distance=128' 15440+0231 A 2230AD distance=128' 15440+0231 RDR 6Ba,Bb distance=128' 15505+0055 KPP3297 distance=130' 15395-0138 RST5027 distance=131' 15356+0209 BAL1905 distance=141' 15512+0107 RAO 339CD distance=144' 15461-0148 ISO 2 distance=149' 15450+0250 GRV1115 distance=151' 15504+0149 TOK 597 distance=151' 15376-0147 LDS 533 distance=151' 15347+0212 RAO 337 distance=153' 15317+0053 TOK 48 distance=157' 15335-0104 SLW1106 distance=158' 15526-0036 HDS2235 distance=160' 15527-0021 HO 398 distance=161' 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 15420+0027 A 2176 216 0.2
Show 15419-0049 J 444 318 2.9 22
Show 15413+0007 BAL1177 AB 268 23.1 24
Show 15413+0007 WLY 7 BC 32 3.6 24
Show 15426+0052 FMR 120 295 85.6 26
Show 15415+0113 SKF 915 175 4.8 47
Show 15378+0017 LDS4575 283 52.0 64
Show 15460+0001 A 2231 26 2.2 66
Show 15467+0045 LDS6306 278 15.8 73
Show 15370-0041 HJ 1276 258 5.4 77
Show 15441+0140 GWP2550 37 7.0 79
Show 15473-0016 SOZ 15 267 12.4 80
Show 15470-0012 GRV1116 146 23.5 87
Show 15420+0156 BAL1906 253 16.7 89
Show 15395-0104 RST5028 78 0.8 99
Show 15353-0018 CBL 492 220 30.1 101
Show 15436+0209 BAL1907 347 2.4 105
Show 15351+0045 HDS2189 11 0.2 105
Show 15471+0146 CBL 497 286 68.3 110
Show 15473+0149 RAO 664 304 0.2 114
Show 15482+0134 EIS 1 AB 352 17.7 114
Show 15482+0134 LAF 55 AC 12 2.3 114
Show 15482+0134 LAF 55 AD 287 4.0 114
Show 15482+0134 LAF 55 AE 305 8.0 114
Show 15482+0134 LAF 55 AF 258 8.3 114
Show 15482+0134 LAF 55 AG 299 11.0 114
Show 15482+0134 LAF 55 AH 190 11.4 114
Show 15482+0134 LAF 55 AI 207 10.0 114
Show 15474+0154 GWP2553 105 7.7 119
Show 15454-0123 STF1968 93 14.4 122
Show 15399+0227 SLE 926 314 22.1 124
Show 15440+0231 A 2230 CE 235 172.8 124
Show 15374+0214 SLW1116 83 44.7 127
Show 15398+0230 CVR 168 132 101.6 127
Show 15440+0231 A 2230 AB 15 4.5 128
Show 15440+0231 A 2230 AC 208 193.9 128
Show 15440+0231 A 2230 AD 286 173.6 128
Show 15440+0231 RDR 6 Ba,Bb 30 0.2 128
Show 15505+0055 KPP3297 192 6.0 130
Show 15395-0138 RST5027 34 0.7 131
Show 15356+0209 BAL1905 26 5.1 141
Show 15512+0107 RAO 339 CD 110 0.3 144
Show 15461-0148 ISO 2 63 0.2 149
Show 15450+0250 GRV1115 312 30.1 151
Show 15504+0149 TOK 597 146 422.0 151
Show 15376-0147 LDS 533 34 20.2 151
Show 15347+0212 RAO 337 34 0.9 153
Show 15317+0053 TOK 48 17 0.0 157
Show 15335-0104 SLW1106 228 118.7 158
Show 15526-0036 HDS2235 75 0.5 160
Show 15527-0021 HO 398 39 11.1 161

 
 
WDS 15420+0027 : COMPONENTS
 
 
  A
B pa=216.1°
sep=0.20"
 
 
15420+0027 A
 
 
Componente originario normalizzato AB Name HD 140122 Coord arcsec 2000 154201.39+002725.5 Mag 7.7
Spectral class A1IV (white) PmRA 21.00 PmDE -18.0 SAO 121129
HIP 76892 Tycho2 0351-00032-1 HD 140122 ADS 9747
BD BD+00 3389
Tycho2
Tycho2 0351-00032-1 Pflag RAmdeg 235.50584773 DEmdeg 0.45703217
PmRA 20.4 PmDE -17.0 E RAmdeg 5 E DEmdeg 5
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.14 EpDEm 1991.00
Num 14 Q RAmdeg 1.0 Q DEmdeg 1.4 Q pmRA 0.9
Q pmDE 1.5 BTmag 7.505 E BTmag 0.016 VTmag 7.243
E VTmag 0.011 Prox 999 TYC T HIP 76892
CCDM RAdeg 235.50580028 DEdeg 0.45707222 EpRA 1990 1.69
EpDE 1990 1.55 E RAdeg 4.5 E DEdeg 5.0 Posflg
Corr 0.2
SAO
SAO 121129 DelFlag RA1950 PmRA1950 0.0025
DE1950 PmDE1950 -0.012 Vmag 7.6 SpType A0
Double code Source 31 CatNum 3977 DM BD+00 3389
DMcomp BDsup HD 140122 M HD 0
GC RA1950rad 4.09920448 DE1950rad 0.01075462 PmRA2000 0.0027
PmDE2000 -0.009
Hipparcos
Catalog H HIP 76892 Proxy RAhms 15 42 01.39
DEdms +00 27 25.5 Vmag 7.23 VarFlag R Vmag H
RAdeg 235.506 DEdeg 0.457075 AstroRef Plx 6.61
CCDM 15420+0027 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 140122 BD BD+00 3389
CD CP Dm number +00 3389 VIred 0.27
SpType A0 R SpType Coord arcsec 2000 154201.39+002725.5
Hipparcos 2
HIP 76892 Sn 5 So 0 Nc 1
RArad 4.1103515779 DErad 0.0079774643 Plx 6.12 PmRA 19.34
PmDE -17.91 E RArad 0.62 E DErad 0.46 E Plx 0.74
E pmRA 0.77 E pmDE 0.89 Hpmag 7.298 E Hpmag 0.0011
SHp 0.009 VA 0 BV 0.24 E BV 0.015
VI 0.27
CCDM
Ccdm 15420+0027 RComp Comp A Note1
Note2 Discov num DRAs 1.40 DDEs 25.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.2 Sp A0 PmNote *
PmRA 15 PmDE -4 Dm number +00 3389 Cat1 BD
Name2 +00 1873 Cat2 AGK2/3 HD 140122 M HD
ADS BDS A 9747 M ADS BDS N IDS IDS 15369N0047A
HIC 76892
 
 
15420+0027 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 154201.38+002725.3 Mag 8.4 Calc delta mag 0.7
Calc coord yes
CCDM
Ccdm 15420+0027 RComp Comp B Note1 *
Note2 Discov num A 2176 DRAs DDEs
R dRAs Year 1910 Theta Rho
Obs 25 Vmag 8.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 9747 M ADS BDS N IDS IDS 15369N0047B
HIC 76892