18125-1852 VAT 2 (HD 166668)

 
 
18h 12m 29.81s -18° 51' 40.6" P.A. 86.00 sep 7.6 mag 9.40,9.80 Sp A2V
 
 
Coord 2000 18125-1852 Discov num VAT   2 Comp Coord arcsec 2000 18 12 29.81 -18 51 40.6
Date first 1916 Date last 2018 Obs 11
Pa first 87 Pa last 86.3 P.A. Now (θ) 86.3°
Sep first 7.5 Sep last 7.581 Sep. Now (ρ) 7.581"
Mag pri 9.40 Mag sec 9.80 delta mag (ΔM) 0.4 Spectral class A2V (white)
Pri motion ra +003 Sec motion ra +006
Pri motion dec +000 Sec motion dec +001
Notes N (See Notes)
rPM=0.52
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 166668 Constellation Sagittarius SAO 161179 Tycho2 6272-02521-1
Gaia DR2 4095516475161893376 HD 166668
 
 
WDS 18125-1852 VAT 2 (HD 166668) : NOTES
 
 
discov_num notes refcode
VAT 2 J 1737.
 
 
REFERENCES
 
 
refcode metd author reference
Vat (Vatican Observatory)
Vat1926 Ma j Vatican Obs. .
Vat1926 +Pa Astrographic Cat. Appendix 3, 1926, 1930
Vat1939 Ma - Tibor, M. et al. .
Vat1939 +Pa Vatican Obs. Astron. Res. 1, 4, 1939
Vat1945 Ma - Stein, J. et al. .
Vat1945 Vatican Obs. Astron. Res. 1, 331, 1945
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18125-1852 VAT 2 2005 8 86 7.4 9.40 9.80 A2V N D 181229.81-185140.6
18125-1852 VAT 2 2017 10 87 7.6 9.40 9.80 A2V N 181229.81-185140.6
18125-1852 VAT 2 2018 11 87 7.6 9.40 9.80 A2V N 181229.81-185140.6

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WDS 18125-1852 VAT 2 (HD 166668) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18125-1852 VAT 2 (HD 166668) : MEASURES
 
 
No records found.

 
 
WDS 18125-1852 (HD 166668) : VIRTUAL EYEPIECE
 
 

18125-1852 VAT 2A mag 9.4 Sp A2V 18125-1852 VAT 2B sep 7.2 P.A. 86.10 mag 9.8 virtual eyepiece
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Radius:
Components only
 
 
WDS 18125-1852 (HD 166668) : ALADIN DSS IMAGE @ 18h 12m 29.81s -18° 51' 40.6"
 
 
 
 
WDS 18125-1852 VAT 2 (HD 166668) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18125-1852 VAT 2 distance=0' 18125-1847 ARA 460 distance=6' 18120-1852 OCC9177 distance=8' 18125-1901 SKF 95 distance=10' 18124-1840 KPP4092 distance=12' 18118-1903 I 1479 distance=16' 18137-1845 FEN 28 distance=19' 18138-1847 HJ 594AB distance=19' 18138-1847 HJ 594AC distance=19' 18135-1903 ARA 734 distance=19' 18137-1903 SKF 97 distance=21' 18138-1904 ARA 735 distance=22' 18130-1914 LDS 629 distance=24' 18140-1904 ARA 736 distance=25' 18126-1917 ARA 732 distance=26' 18143-1902 ARA 740 distance=28' 18143-1904 B 2859AB distance=29' 18143-1904 SIN 108AC distance=29' 18118-1825 HJ 2820AB distance=31' 18118-1825 HJ 2820AC distance=31' 18118-1825 HJ 2820BC distance=31' 18141-1912 CHR 234Aa,Ab distance=31' 18141-1912 ARA 738AB distance=31' 18147-1847 TOB 272BC distance=33' 18147-1847 TOB 272AB distance=33' 18130-1819 TDT 739 distance=34' 18150-1857 RST3167 distance=36' 18133-1817 ARA 462 distance=37' 18150-1900 ARA 741 distance=37' 18153-1900 BU 284BR distance=41' 18153-1900 BU 284AB distance=41' 18153-1900 BU 284AC distance=41' 18153-1900 BU 284AD distance=41' 18153-1900 BU 284AE distance=41' 18153-1900 BU 284AF distance=41' 18153-1900 BU 284AG distance=41' 18153-1900 BU 284AH distance=41' 18153-1900 BU 284AS distance=41' 18153-1900 ARA 743CQ distance=41' 18155-1840 SEE 349 distance=41' 18129-1933 BRT1519 distance=42' 18150-1912 LEO 15AB distance=42' 18150-1912 LEO 15AC distance=42' 18150-1912 OCC9178Aa,Ab distance=42' 18147-1922 OCC 466 distance=44' 18140-1931 ARA 737 distance=46' 18158-1855 OCC 566 distance=47' 18156-1835 ARA 465 distance=48' 18115-1807 ARA 457 distance=48' 18126-1804 ARA 461 distance=48' 18152-1924 TSN 117 distance=51' 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 18125-1852 VAT 2 86 7.6
Show 18125-1847 ARA 460 86 13.7 6
Show 18120-1852 OCC9177 -1 0.0 8
Show 18125-1901 SKF 95 122 5.9 10
Show 18124-1840 KPP4092 335 1.6 12
Show 18118-1903 I 1479 237 2.0 16
Show 18137-1845 FEN 28 256 3.6 19
Show 18138-1847 HJ 594 AB 121 7.6 19
Show 18138-1847 HJ 594 AC 238 13.5 19
Show 18135-1903 ARA 734 211 10.8 19
Show 18137-1903 SKF 97 269 2.5 21
Show 18138-1904 ARA 735 93 9.6 22
Show 18130-1914 LDS 629 132 48.2 24
Show 18140-1904 ARA 736 336 11.6 25
Show 18126-1917 ARA 732 93 9.3 26
Show 18143-1902 ARA 740 53 9.2 28
Show 18143-1904 B 2859 AB 48 6.6 29
Show 18143-1904 SIN 108 AC 149 11.3 29
Show 18118-1825 HJ 2820 AB 279 5.8 31
Show 18118-1825 HJ 2820 AC 82 12.9 31
Show 18118-1825 HJ 2820 BC 87 18.5 31
Show 18141-1912 CHR 234 Aa,Ab 60 0.2 31
Show 18141-1912 ARA 738 AB 61 15.4 31
Show 18147-1847 TOB 272 BC 324 18.4 33
Show 18147-1847 TOB 272 AB 330 28.8 33
Show 18130-1819 TDT 739 253 2.2 34
Show 18150-1857 RST3167 153 4.5 36
Show 18133-1817 ARA 462 343 14.8 37
Show 18150-1900 ARA 741 355 14.7 37
Show 18153-1900 BU 284 BR 326 5.2 41
Show 18153-1900 BU 284 AB 358 18.1 41
Show 18153-1900 BU 284 AC 86 31.1 41
Show 18153-1900 BU 284 AD 192 57.8 41
Show 18153-1900 BU 284 AE 188 75.3 41
Show 18153-1900 BU 284 AF 267 138.7 41
Show 18153-1900 BU 284 AG 200 12.4 41
Show 18153-1900 BU 284 AH 67 21.0 41
Show 18153-1900 BU 284 AS 103 19.1 41
Show 18153-1900 ARA 743 CQ 298 13.1 41
Show 18155-1840 SEE 349 134 10.6 41
Show 18129-1933 BRT1519 55 5.2 42
Show 18150-1912 LEO 15 AB 112 4.0 42
Show 18150-1912 LEO 15 AC 300 8.1 42
Show 18150-1912 OCC9178 Aa,Ab -1 0.1 42
Show 18147-1922 OCC 466 -1 0.9 44
Show 18140-1931 ARA 737 104 14.0 46
Show 18158-1855 OCC 566 -1 0.1 47
Show 18156-1835 ARA 465 258 15.2 48
Show 18115-1807 ARA 457 3 14.3 48
Show 18126-1804 ARA 461 313 10.8 48
Show 18152-1924 TSN 117 219 3.5 51

 
 
WDS 18125-1852 : COMPONENTS
 
 
  A
B pa=86.1°
sep=7.18"
 
 
18125-1852 A
 
 
Componente originario normalizzato AB Name HD 166668 Coord arcsec 2000 181229.81-185140.6 Mag 9.4
Spectral class A2V (white) PmRA 3.00 PmDE 0.0 Tycho2 6272-02521-1
Tycho2
Tycho2 6272-02521-1 Pflag RAmdeg 273.12419339 DEmdeg -18.86127800
PmRA 2.7 PmDE -0.4 E RAmdeg 20 E DEmdeg 26
E pmRA 2.7 E pmDE 2.8 EpRAm 1990.97 EpDEm 1990.50
Num 3 Q RAmdeg 0.4 Q DEmdeg 0.3 Q pmRA 0.4
Q pmDE 0.3 BTmag 11.433 E BTmag 0.089 VTmag 9.398
E VTmag 0.025 Prox 75 TYC T HIP
CCDM RAdeg 273.12418667 DEdeg -18.86127694 EpRA 1990 1.72
EpDE 1990 1.65 E RAdeg 20.1 E DEdeg 25.6 Posflg D
Corr 0.1
CCDM
Ccdm 18125-1852 RComp Comp A Note1
Note2 Discov num DRAs -0.21 DDEs 19.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 10.1 Sp F0 PmNote *
PmRA -1 PmDE 6 Dm number -18 4832 Cat1 BD
Name2 161179 Cat2 SAO HD 166668 M HD
ADS BDS M ADS BDS N IDS IDS 18066S1853A
HIC
 
 
18125-1852 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 181230.31-185140.1 Mag 9.8 PmRA 6.00
PmDE 1.0 SAO 161179 Tycho2 6272-00066-1 HD 166668
DM BD-18 4832 Calc delta mag 0.4 Calc coord yes
Tycho2
Tycho2 6272-00066-1 Pflag RAmdeg 273.12638101 DEmdeg -18.86112404
PmRA 4.0 PmDE 2.5 E RAmdeg 23 E DEmdeg 25
E pmRA 2.5 E pmDE 2.5 EpRAm 1990.56 EpDEm 1990.37
Num 3 Q RAmdeg 0.2 Q DEmdeg 0.2 Q pmRA 0.2
Q pmDE 0.2 BTmag 10.233 E BTmag 0.037 VTmag 9.801
E VTmag 0.036 Prox 75 TYC T HIP
CCDM RAdeg 273.12637139 DEdeg -18.86113000 EpRA 1990 1.68
EpDE 1990 1.69 E RAdeg 23.0 E DEdeg 25.4 Posflg
Corr 0.0
SAO
SAO 161179 DelFlag RA1950 PmRA1950 -0.0001
DE1950 PmDE1950 0.006 Vmag 9 SpType F0
Double code Source 22 CatNum 7533 DM BD-18 4832
DMcomp BDsup HD 166668 M HD 0
GC RA1950rad 4.75407287 DE1950rad -0.32942532 PmRA2000 0
PmDE2000 0.007
CCDM
Ccdm 18125-1852 RComp Comp B Note1
Note2 Discov num VAT DRAs DDEs
R dRAs Year 1937 Theta 268 Rho 6.8
Obs 1 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 18066S1853B
HIC