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Doubles in session


Current system
19019+1910
STF 2437
HD 176972


Nearby doubles
3' : 19020+1907
HJ 2851AB

35' : 19019+1944
KPP1747

44' : 18599+1937
L 43

47' : 18593+1842
COU 818AB

48' : 18586+1916
KPP4132

51' : 18585+1855
TDT1156

53' : 18587+1936
HU 330

54' : 18589+1911
L 65

61' : 19011+2009
COU 319AB

65' : 19040+1813
BPM 948

65' : 19046+1819
BPMA 76

66' : 19057+1833
KPP 434

71' : 19018+1800
KPP1243

71' : 19068+1854
J 1142

72' : 19054+1820
BPMA 78

72' : 19045+1809
BPM 953

72' : 18591+1810
HU 331

74' : 19013+1758
BPM 926

77' : 19010+1755
GWP2802

78' : 19053+1811
BPM 958

84' : 19087+1914
HO 570

86' : 19080+1910
HO 442

91' : 18558+1935
KU 122

92' : 18558+1839
TDT1132

93' : 19076+1825
GWP2813

94' : 19080+1945
STF2460AB



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

19019+1910 STF 2437 (HD 176972)

 
 
19h 01m 53.16s +19° 10' 11.7" P.A. 334.00 sep 0.6 mag 8.41,8.83 Sp G3.4V+G1V dist. 84.39 pc (275.28 l.y.)
 
 
Coord 2000 19019+1910 Discov num STF2437 Comp Coord arcsec 2000 19 01 53.16 +19 10 11.7
Date first 1828 Date last 2021 Obs 169
Pa first 81 Pa last 334.2 P.A. Now (θ) 334.2°
Sep first 1.1 Sep last 0.571 Sep. Now (ρ) 0.571"
Mag pri 8.41 Mag sec 8.83 delta mag (ΔM) 0.42 Spectral class G3.4V+G1V (yellow/yellow)
Pri motion ra -023 Sec motion ra -023
Pri motion dec +018 Sec motion dec +018
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 176972 Constellation Sagitta HIP 93448 Tycho2 1593-00698-1
HD 176972 ADS 11956 BD BD+18 3920 Distance 84.39
Distance ly 275.28
 
 
ORBITAL ELEMENTS
 
 
Period (P)804.6y Periastron (T)2132.947y Semi-major axis (a)0.91a
Eccentricity (e)0.478 Inclination (i)131° Longitude of periastron (ω)212.1°
Node (Ω)114.9° Notesn ReferenceSca2008c
Equinox2000 Last observation2005 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 15.2 0.586
2001 14.6 0.584
2002 14.0 0.583
2003 13.4 0.581
2004 12.7 0.579
2005 12.1 0.578
2006 11.5 0.576
2007 10.8 0.575
2008 10.2 0.573
2009 9.5 0.572
2010 8.9 0.571
2011 8.2 0.569
2012 7.5 0.568
2013 6.9 0.567
2014 6.2 0.565
2015 5.5 0.564
2016 4.9 0.563
2017 4.2 0.562
2018 3.5 0.561
2019 2.8 0.559
2020 2.1 0.558
2021 1.5 0.557
2022 0.8 0.556
2023 0.1 0.555
2024 359.4 0.554
2025 358.7 0.553
2026 358.0 0.553
2027 357.3 0.552
2028 356.6 0.551
2029 355.9 0.550
2030 355.2 0.549


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


 
  


wds19019%2B1910a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 19019+1910 STF 2437 (HD 176972) : NOTES
 
 
discov_num notes refcode
STF2437 Primary = E component of 19020+1907 ARN 18AE.
 
 
REFERENCES
 
 
refcode metd author reference
Sca2008c orb - Scardia, M., Prieur, J.-L., Pansecchi, L., & Argyle, R.W. 2008AN....329..379S
Sca2008c AN 329, 379, 2008
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19019+1910 STF2437 2007 151 10 0.6 8.41 8.83 G5 D 190153.16+191011.7
19019+1910 STF2437 2008 156 10 0.6 8.41 8.83 G5 D 190153.16+191011.7
19019+1910 STF2437 2009 157 10 0.6 8.41 8.83 G5 D 190153.16+191011.7
19019+1910 STF2437 2011 162 7 0.6 8.41 8.83 G5 O 190153.16+191011.7
19019+1910 STF2437 2015 161 2 0.6 8.41 8.83 G5 NO 190153.16+191011.7
19019+1910 STF2437 2017 162 8 0.5 8.41 8.83 G5 NO 190153.16+191011.7
19019+1910 STF2437 2019 164 1 0.6 8.41 8.83 G5 NO 190153.16+191011.7
19019+1910 STF2437 2021 169 334 0.6 8.41 8.83 G3.4V+G1V NO 190153.16+191011.7

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

 
 
WDS 19019+1910 STF 2437 (HD 176972) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19019+1910 STF 2437 (HD 176972) : MEASURES
 
 
No records found.

 
 
WDS 19019+1910 (HD 176972) : VIRTUAL EYEPIECE
 
 

19019+1910 STF2437A mag 8.41 Sp G3.4V 19019+1910 STF2437B sep 0.6 P.A. 335.50 mag 8.83 Sp G1V 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 19019+1910 (HD 176972) : ALADIN DSS IMAGE @ 19h 01m 53.16s +19° 10' 11.7"
 
 
 
 
WDS 19019+1910 STF 2437 (HD 176972) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19019+1910 STF2437 distance=0' 19020+1907 HJ 2851AB distance=3' 19020+1907 HJ 2851AC distance=3' 19020+1907 WAL 102AD distance=3' 19020+1907 ARN 18AE distance=3' 19019+1944 KPP1747 distance=35' 18599+1937 L 43 distance=44' 18593+1842 COU 818AB distance=47' 18586+1916 KPP4132 distance=48' 18585+1855 TDT1156 distance=51' 18587+1936 HU 330 distance=53' 18589+1911 L 65 distance=54' 19011+2009 COU 319AB distance=61' 19011+2009 GII 278Aa,Ab distance=61' 19040+1813 BPM 948 distance=65' 19046+1819 BPMA 76 distance=65' 19057+1833 KPP 434 distance=66' 19018+1800 KPP1243 distance=71' 19068+1854 J 1142 distance=71' 19054+1820 BPMA 78 distance=72' 19045+1809 BPM 953 distance=72' 18591+1810 HU 331 distance=72' 19013+1758 BPM 926 distance=74' 19010+1755 GWP2802 distance=77' 19053+1811 BPM 958 distance=78' 19087+1914 HO 570 distance=84' 19080+1910 HO 442 distance=86' 18558+1935 KU 122 distance=91' 18558+1839 TDT1132 distance=92' 19076+1825 GWP2813 distance=93' 19080+1945 STF2460AB distance=94' 18573+1800 BPMA 70 distance=96' 19095+1925 HO 443 distance=97' 19046+1739 BPM 955 distance=100' 19089+1914 HO 636 distance=100' 19047+1734 BPMA 77 distance=105' 18570+1752 BPM 902 distance=105' 18556+1813 DAM 128 distance=107' 18552+1817 J 2931 distance=109' 18545+1837 HDS2680 distance=111' 19043+1725 BPM 951 distance=111' 19032+1717 BPM 939 distance=115' 18587+2056 TDT1159 distance=115' 19061+1732 BPM 962 distance=116' 18577+1731 BPM 908 distance=116' 19073+1742 BPM 968 distance=118' 19101+1934 HJ 877 distance=119' 18582+1722 CHR 82Aa,Ab distance=121' 18582+1722 HO 91AB distance=121' 18582+1722 CIA 14Aa1,2 distance=121' 18582+1722 KRV 25AC distance=121' 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 19019+1910 STF2437 334 0.6
Show 19020+1907 HJ 2851 AB 165 14.1 3
Show 19020+1907 HJ 2851 AC 291 48.9 3
Show 19020+1907 WAL 102 AD 137 44.3 3
Show 19020+1907 ARN 18 AE 339 173.8 3
Show 19019+1944 KPP1747 13 13.5 35
Show 18599+1937 L 43 289 2.4 44
Show 18593+1842 COU 818 AB 142 3.9 47
Show 18586+1916 KPP4132 105 1.8 48
Show 18585+1855 TDT1156 138 0.7 51
Show 18587+1936 HU 330 33 0.7 53
Show 18589+1911 L 65 68 8.7 54
Show 19011+2009 COU 319 AB 80 2.1 61
Show 19011+2009 GII 278 Aa,Ab 132 0.2 61
Show 19040+1813 BPM 948 324 32.7 65
Show 19046+1819 BPMA 76 333 276.7 65
Show 19057+1833 KPP 434 98 4.5 66
Show 19018+1800 KPP1243 140 9.6 71
Show 19068+1854 J 1142 285 1.3 71
Show 19054+1820 BPMA 78 276 258.6 72
Show 19045+1809 BPM 953 180 49.4 72
Show 18591+1810 HU 331 208 0.6 72
Show 19013+1758 BPM 926 118 52.2 74
Show 19010+1755 GWP2802 266 22.9 77
Show 19053+1811 BPM 958 150 82.5 78
Show 19087+1914 HO 570 222 10.2 84
Show 19080+1910 HO 442 125 3.7 86
Show 18558+1935 KU 122 151 22.2 91
Show 18558+1839 TDT1132 218 1.0 92
Show 19076+1825 GWP2813 315 24.2 93
Show 19080+1945 STF2460 AB 198 9.5 94
Show 18573+1800 BPMA 70 232 243.7 96
Show 19095+1925 HO 443 119 3.0 97
Show 19046+1739 BPM 955 143 100.4 100
Show 19089+1914 HO 636 47 0.5 100
Show 19047+1734 BPMA 77 25 196.1 105
Show 18570+1752 BPM 902 118 83.4 105
Show 18556+1813 DAM 128 317 4.8 107
Show 18552+1817 J 2931 143 5.3 109
Show 18545+1837 HDS2680 93 4.0 111
Show 19043+1725 BPM 951 177 75.0 111
Show 19032+1717 BPM 939 309 116.6 115
Show 18587+2056 TDT1159 104 0.5 115
Show 19061+1732 BPM 962 107 66.5 116
Show 18577+1731 BPM 908 149 76.0 116
Show 19073+1742 BPM 968 198 25.9 118
Show 19101+1934 HJ 877 294 12.6 119
Show 18582+1722 CHR 82 Aa,Ab 157 0.2 121
Show 18582+1722 HO 91 AB 146 7.0 121
Show 18582+1722 CIA 14 Aa1,2 352 0.0 121
Show 18582+1722 KRV 25 AC 79 96.0 121

 
 
WDS 19019+1910 : COMPONENTS
 
 
  A
B pa=335.5°
sep=0.57"
 
 
19019+1910 A
 
 
Componente originario normalizzato AB Name HD 176972 Coord arcsec 2000 190153.16+191011.7 Mag 8.41
Spectral class G3.4V (yellow) PmRA -23.00 PmDE 18.0
CCDM
Ccdm 19019+1910 RComp Comp A Note1
Note2 Discov num DRAs -0.85 DDEs 11.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.2 Sp G5 PmNote *
PmRA -29 PmDE 9 Dm number +18 3920 Cat1 BD
Name2 +19 1818 Cat2 AGK2/3 HD 176972 M HD
ADS BDS A11956 M ADS BDS N IDS IDS 18575N1902A
HIC 93448
 
 
19019+1910 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 190153.14+191012.2 Mag 8.83 Spectral class G1V (yellow)
PmRA -23.00 PmDE 18.0 Calc delta mag 0.42 Calc coord yes
CCDM
Ccdm 19019+1910 RComp Comp B Note1
Note2 Discov num STF2437 DRAs DDEs
R dRAs Year 1959 Theta 036 Rho 0.6
Obs 99 Vmag 8.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11956 M ADS BDS N IDS IDS 18575N1902B
HIC 93448