16118+3626 WRH 21 (HD 145849)

 
 
16h 11m 48.06s +36° 25' 30.6" P.A. 66.00 sep 0.1 mag 5.63, Sp K3III dist. 207.04 pc (675.36 l.y.)
 
 
Coord 2000 16118+3626 Discov num WRH  21 Comp Coord arcsec 2000 16 11 48.06 +36 25 30.6
Date first 1937 Date last 1963 Obs 3
Pa first 121 Pa last 65.8 P.A. Now (θ) 65.8°
Sep first 0.1 Sep last 0.09 Sep. Now (ρ) 0.09"
Mag pri 5.63 Mag sec delta mag (ΔM) Spectral class K3III (yellow-orange)
Pri motion ra -012 Sec motion ra
Pri motion dec -031 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 145849 Constellation Corona Borealis SAO 65132 HIP 79358
Tycho2 2579-02072-1 Gaia DR2 1330195012735726208 HD 145849 HR 6046
GC 21800 BD BD+36 2706 Distance 207.04 Distance ly 675.36
 
 
ORBITAL ELEMENTS
 
 
Period (P)2200.77d (6.03y) Periastron (T)50760.4d (1997.853y) Semi-major axis (a)9.69m± 0.85
Eccentricity (e)0.6797 Inclination (i)91.4°± 9.7 Longitude of periastron (ω)9.73°
Node (Ω)50.5°± 6.6 Notesn ReferenceTrr2007b
Equinox Last observation1993 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 230.6 0.015
2001-01-01 230.2 0.016
2002-01-01 229.7 0.013
2003-01-01 228.4 0.006
2004-01-01 48.4 0.002
2005-01-01 231.2 0.010
2006-01-01 230.6 0.015
2007-01-01 230.2 0.016
2008-01-01 229.8 0.013
2009-01-01 228.5 0.006
2010-01-01 48.9 0.002
2011-01-01 231.3 0.010
2012-01-01 230.6 0.015
2013-01-01 230.2 0.016
2014-01-01 229.8 0.013
2015-01-01 228.6 0.006
2016-01-01 49.4 0.003
2017-01-01 231.3 0.010
2018-01-01 230.6 0.015
2019-01-01 230.2 0.016
2020-01-01 229.8 0.013
2021-01-01 228.7 0.006
2022-01-01 49.7 0.003
2023-01-01 231.3 0.009
2024-01-01 230.6 0.015
2025-01-01 230.2 0.016
2026-01-01 229.8 0.013
2027-01-01 228.7 0.007
2028-01-01 50.0 0.003
2029-01-01 231.3 0.009
2030-01-01 230.7 0.015


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



 
 


wds16118%2B3626s.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 16118+3626 WRH 21 (HD 145849) : NOTES
 
 
discov_num notes refcode
WRH 21 A long-period spectroscopic binary.
1983.3098: Very poor atmospheric conditions. Bag1984a
Torres (2007) incorporates Hipparcos intermediate data with Trr2007b
spectroscopic results to derive orbit. P, e, omega, and T are adopted
from the spectroscopic solution of Scarfe et al. (2007). Resulting Scf2007
masses are 1.38 +0.09/-0.03 and 1.36 +0.07/-0.02 Msun.
 
 
REFERENCES
 
 
refcode metd author reference
Bag1984a S j Balega, Y.Y. & Ryadchenko, V.P. 1984SvAL...10...95B
Bag1984a SvAL 10, 95, 1984
Scf2007 - Scarfe, C.D., Griffin, R.F., & Griffin, R.E.M. 2007MNRAS.376.1671S
Scf2007 MNRAS 376, 1671, 2007
Trr2007b orb - Torres, G. 2007AJ....134.1916T
Trr2007b AJ 134, 1916, 2007
 
 
DISCOVERER
 
 
idgroup discov author
1 WRH Wilson, R.H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16118+3626 WRH 21 1963 3 66 0.1 5.63   K3III N 161148.06+362530.6

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WDS 16118+3626 WRH 21 (HD 145849) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16118+3626 WRH 21 (HD 145849) : MEASURES
 
 
No records found.

 
 
WDS 16118+3626 (HD 145849) : VIRTUAL EYEPIECE
 
 

16118+3626 WRH  21A mag 5.63 Sp K3III 16118+3626 WRH  21B sep 0.1 P.A. 60.80 virtual eyepiece
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Radius:
Components only
 
 
WDS 16118+3626 (HD 145849) : ALADIN DSS IMAGE @ 16h 11m 48.06s +36° 25' 30.6"
 
 
 
 
WDS 16118+3626 WRH 21 (HD 145849) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


16118+3626  WRH  21 distance=0' 16133+3617  KPP3988 distance=20' 16109+3604  HJ  583 distance=24' 16090+3629  BU 1087 distance=35' 16088+3635  DVG   1 distance=38' 16090+3643  KPP3984AB distance=39' 16118+3725  HJ  260 distance=60' 16076+3547  HJ  259 distance=64' 16074+3548  ALI 370 distance=65' 16157+3538  HJ  585AB distance=67' 16157+3538  HJ  585AC distance=67' 16090+3730  TDS9774 distance=73' 16072+3536  KPP2512 distance=75' 16117+3507  GRV 924 distance=79' 16140+3510  POP 103 distance=80' 16103+3506  TDS9780 distance=82' 16044+3625  HDS2268 distance=90' 16193+3612  KPP3996 distance=92' 16071+3507  HJ  582 distance=96' 16120+3803  LDS4649 distance=97' 16089+3758  COU1276 distance=99' 16148+3801  LDS4657 distance=102' 16199+3600  COU 981 distance=102' 16033+3638  BAG  52 distance=103' 16118+3442  CVR 182 distance=104' 16073+3458  CBL 502 distance=104' 16205+3640  WAA  47 distance=106' 16202+3557  SLW1172 distance=106' 16037+3709  UC 3111 distance=107' 16124+3812  SKF 219 distance=108' 16027+3617  KPP3978 distance=111' 16152+3443  HDS2298 distance=111' 16059+3500  LEP  77 distance=112' 16028+3705  HJ  580 distance=115' 16083+3814  LDS4644 distance=117' 16024+3554  TDS 797 distance=118' 16216+3631  COU 982 distance=119' 16173+3804  KPP 364 distance=119' 16118+3424  STT 306 distance=122' 16020+3727  SHN 209 distance=133' 16013+3714  SKF 240 distance=136' 16220+3524  CVR 185 distance=138' 16231+3650  LDS4662 distance=139' 16001+3625  COU1138 distance=142' 16000+3650  VKI  23 distance=144' 15596+3618  TDS9715 distance=148' 16072+3407  TDS9764 distance=150' 16242+3616  CVR1665 distance=150' 16147+3854  HJ 2801 distance=153' 16067+3406  DEA  55 distance=153' 16242+3702  STF2044 distance=154' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 16118+3626 WRH 21 66 0.1
Show 16133+3617 KPP3988 48 2.6 20
Show 16109+3604 HJ 583 147 2.7 24
Show 16090+3629 BU 1087 206 1.7 35
Show 16088+3635 DVG 1 342 17.1 38
Show 16090+3643 KPP3984 AB 51 3.7 39
Show 16118+3725 HJ 260 27 19.8 60
Show 16076+3547 HJ 259 155 35.1 64
Show 16074+3548 ALI 370 147 13.0 65
Show 16157+3538 HJ 585 AB 320 8.7 67
Show 16157+3538 HJ 585 AC 193 31.9 67
Show 16090+3730 TDS9774 210 0.7 73
Show 16072+3536 KPP2512 296 22.6 75
Show 16117+3507 GRV 924 307 10.4 79
Show 16140+3510 POP 103 52 3.9 80
Show 16103+3506 TDS9780 47 0.9 82
Show 16044+3625 HDS2268 191 0.4 90
Show 16193+3612 KPP3996 314 2.0 92
Show 16071+3507 HJ 582 232 22.3 96
Show 16120+3803 LDS4649 69 154.8 97
Show 16089+3758 COU1276 53 3.3 99
Show 16148+3801 LDS4657 297 9.1 102
Show 16199+3600 COU 981 132 1.1 102
Show 16033+3638 BAG 52 84 0.0 103
Show 16118+3442 CVR 182 85 44.8 104
Show 16073+3458 CBL 502 169 67.1 104
Show 16205+3640 WAA 47 82 1.6 106
Show 16202+3557 SLW1172 2 157.3 106
Show 16037+3709 UC 3111 15 9.5 107
Show 16124+3812 SKF 219 37 4.0 108
Show 16027+3617 KPP3978 130 2.2 111
Show 16152+3443 HDS2298 165 0.4 111
Show 16059+3500 LEP 77 233 42.6 112
Show 16028+3705 HJ 580 7 40.7 115
Show 16083+3814 LDS4644 77 117.0 117
Show 16024+3554 TDS 797 86 0.9 118
Show 16216+3631 COU 982 247 0.4 119
Show 16173+3804 KPP 364 342 3.5 119
Show 16118+3424 STT 306 2 0.2 122
Show 16020+3727 SHN 209 -1 0.2 133
Show 16013+3714 SKF 240 79 1.9 136
Show 16220+3524 CVR 185 357 25.9 138
Show 16231+3650 LDS4662 72 54.9 139
Show 16001+3625 COU1138 340 0.2 142
Show 16000+3650 VKI 23 353 4.5 144
Show 15596+3618 TDS9715 121 2.4 148
Show 16072+3407 TDS9764 50 0.4 150
Show 16242+3616 CVR1665 107 4.2 150
Show 16147+3854 HJ 2801 211 31.1 153
Show 16067+3406 DEA 55 297 15.4 153
Show 16242+3702 STF2044 340 8.4 154

 
 
WDS 16118+3626 : COMPONENTS
 
 
  A
B pa=60.8°
sep=0.08"
 
 
16118+3626 A
 
 
Componente originario normalizzato AB Name HD 145849 Coord arcsec 2000 161148.06+362530.6 Mag 5.63
Spectral class K3III (yellow-orange) PmRA -12.00 PmDE -31.0 SAO 65132
HIP 79358 Tycho2 2579-02072-1 HD 145849 HR 6046
GC 21800 BD BD+36 2706
Tycho2
Tycho2 2579-02072-1 Pflag RAmdeg 242.95021648 DEmdeg 36.42508892
PmRA -13.3 PmDE -30.8 E RAmdeg 4 E DEmdeg 4
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.51 EpDEm 1991.53
Num 12 Q RAmdeg 1.8 Q DEmdeg 1.2 Q pmRA 1.8
Q pmDE 1.2 BTmag 7.400 E BTmag 0.015 VTmag 5.772
E VTmag 0.009 Prox 999 TYC T HIP 79358
CCDM RAdeg 242.95025444 DEdeg 36.42516000 EpRA 1990 1.73
EpDE 1990 1.68 E RAdeg 3.7 E DEdeg 3.6 Posflg
Corr -0.1
SAO
SAO 65132 DelFlag RA1950 PmRA1950 -0.0013
DE1950 PmDE1950 -0.039 Vmag 5.7 SpType K5
Double code Source 70 CatNum 21800 DM BD+36 2706
DMcomp BDsup HD 145849 M HD 0
GC 21800 RA1950rad 4.23229524 DE1950rad 0.63796982 PmRA2000 -0.001
PmDE2000 -0.036
Hipparcos
Catalog H HIP 79358 Proxy RAhms 16 11 48.06
DEdms +36 25 30.6 Vmag 5.62 VarFlag R Vmag H
RAdeg 242.95 DEdeg 36.4252 AstroRef Plx 5.34
CCDM 16118+3626 N CCDM I Nsys 1 Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD 145849 BD BD+36 2706
CD CP Dm number +36 2706 VIred 1.3
SpType K3III SB R SpType Coord arcsec 2000 161148.06+362530.6
Hipparcos 2
HIP 79358 Sn 1 So 1 Nc 1
RArad 4.2402818548 DErad 0.635739018 Plx 4.83 PmRA -11.09
PmDE -29.82 E RArad 0.62 E DErad 0.58 E Plx 0.78
E pmRA 0.7 E pmDE 0.72 Hpmag 5.7748 E Hpmag 0.0006
SHp 0.007 VA 0 BV 1.352 E BV 0.005
VI 1.32
CCDM
Ccdm 16118+3626 RComp Comp A Note1
Note2 Discov num DRAs 0.06 DDEs -29.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.7 Sp K5 PmNote *
PmRA -14 PmDE -34 Dm number +36 2706 Cat1 BD
Name2 +36 1408 Cat2 AGK2/3 HD 145849 M HD
ADS BDS M ADS BDS N IDS IDS 16082N3641A
HIC 79358
 
 
16118+3626 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 161148.07+362530.6 Calc delta mag 5.63 Calc coord yes
CCDM
Ccdm 16118+3626 RComp Comp B Note1
Note2 Discov num WRH 21 DRAs DDEs
R dRAs Year 1940 Theta 311 Rho 0.1
Obs 2 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 16082N3641B
HIC 79358