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Doubles in session


Current system
17490-1615
HU 187
HD 161925


Nearby doubles
34' : 17506-1550
HJ 2811

42' : 17516-1633
WSI 63AB

55' : 17527-1603
ARA 96

57' : 17520-1651
TDT 543

59' : 17515-1529
FOX 208

62' : 17521-1534
FOX 23AB

62' : 17458-1533
FOX 207

62' : 17464-1526
FOX 21

66' : 17535-1623
WSI 64

66' : 17450-1646
VOU 42

68' : 17460-1706
ARA 263

83' : 17434-1612
ARA 95

86' : 17435-1649
HU 185

96' : 17517-1742
TDT 537

97' : 17425-1638
CRC 25AB

97' : 17466-1445
LSC 76

98' : 17536-1726
HDO 147AB

103' : 17422-1544
HU 184

104' : 17424-1535
KPP1470

109' : 17563-1549
HJ 2814AB

110' : 17547-1503
FOX 210

112' : 17567-1559
ARA 7

114' : 17475-1806
HU 186

116' : 17445-1751
ARA 262

124' : 17515-1417
RST3985

128' : 17406-1653
BRT 624



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.

17490-1615 HU 187 (HD 161925)

 
 
17h 49m 01.11s -16° 14' 59.9" P.A. 84.00 sep 4.2 mag 9.06,11.86 Sp K1V dist. 41.53 pc (135.47 l.y.)
 
 
Coord 2000 17490-1615 Discov num HU  187 Comp Coord arcsec 2000 17 49 01.11 -16 14 59.9
Date first 1900 Date last 2010 Obs 10
Pa first 87 Pa last 83.9 P.A. Now (θ) 83.9°
Sep first 4.5 Sep last 4.18 Sep. Now (ρ) 4.18"
Mag pri 9.06 Mag sec 11.86 delta mag (ΔM) 2.8 Spectral class K1V (yellow-orange)
Pri motion ra -002 Sec motion ra +003
Pri motion dec -037 Sec motion dec -034
Notes
rPM=0.157 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 161925 Constellation Sagittarius SAO 160834 HIP 87207
Tycho2 6249-00780-1 Gaia DR2 4147921604582365184 HD 161925 BD BD-16 4622
Distance 41.53 Distance ly 135.47
 
 
WDS 17490-1615 HU 187 (HD 161925) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hu_1896 not - Hussey, W.F. 1896PASP....8..183H
Hu_1896 PASP 8, 183, 1896
Hu_1897 Ma - Hussey, W.J. 1897AJ.....17...97H
Hu_1897 AJ 17, 97, 1897
Hu_1898 Ma j Hussey, W.J. 1898AJ.....18..145H
Hu_1898 AJ 18, 145, 1898
Hu_1899 Ma j Hussey, W.J. 1899AN....150..175H
Hu_1899 AN 150, 175, 1899
Hu_1900a Ma - Hussey, W.J. 1900AJ.....20..192H
Hu_1900a AJ 20, 192, 1900
Hu_1900b Ma - Hussey, W.J. 1900AJ.....21...35H
Hu_1900b AJ 21, 35, 1900
Hu_1900c Ma j Hussey, W.J. 1900AN....152..329H
Hu_1900c AN 152, 329, #3645, 1900
Hu_1901a Ma j Hussey, W.J. 1901PLicO...5.....H
Hu_1901a +orb Pub. Lick Obs. 5, 1901
Hu_1901b Ma j Hussey, W.J. 1901LicOB...1...82H
Hu_1901b Lick Obs. Bull. 1, 82, 1901
Hu_1902a Ma j Hussey, W.J. 1902LicOB...1..161H
Hu_1902a Lick Obs. Bull. 1, 161, 1902
Hu_1902b Ma j Hussey, W.J. 1902LicOB...2....1H
Hu_1902b Lick Obs. Bull. 2, 1, 1902
Hu_1903a Ma j Hussey, W.J. 1903LicOB...2...73H
Hu_1903a Lick Obs. Bull. 2, 73, 1903
Hu_1903b Ma j Hussey, W.J. 1903LicOB...2..115H
Hu_1903b Lick Obs. Bull. 2, 115, 1903
Hu_1904a Ma j Hussey, W.J. 1904LicOB...2..180H
Hu_1904a Lick Obs. Bull. 2, 180, 1904
Hu_1904b Ma - Hussey, W.J. 1904LicOB...3...53H
Hu_1904b Lick Obs. Bull. 3, 53, 1904
Hu_1905a Ma - Hussey, W.J. 1905LicOB...3...95H
Hu_1905a Lick Obs. Bull. 3, 95, 1905
Hu_1905b Ma - Hussey, W.J. 1905LicOB...3..116H
Hu_1905b Lick Obs. Bull. 3, 116, 1905
Hu_1905c Ma - Hussey, W.J. 1905LicOB...3..151H
Hu_1905c Lick Obs. Bull. 3, 151, 1905
Hu_1906A Ma - Hussey, W.J. 1906MmRAS..56....1L
Hu_1906A cited by Lewis (MemRAS 56, 1, 1906)
Hu_1906B Ma - Hussey, W.J. 1906QB821.B972.....
Hu_1906B cited in BDS (Burnham Double Star Cat.), 1906
Hu_1907 Ma - Hussey, W.J. 1907LicOB...4..124H
Hu_1907 Lick Obs. Bull. 4, 124, 1907
Hu_1910 Ma - Hussey, W.J. 1910AJ.....21..105H
Hu_1910 AJ 21, 105, 1910
Hu_1911 Ma - Hussey, W.J. 1911LicOB...6..182H
Hu_1911 Lick Obs. Bull. 6, 182, 1911
Hu_1912a Ma - Hussey, W.J. 1915POMic...1..147H
Hu_1912a Pub. Univ. Michigan Obs. 1, 147, 1912
Hu_1912b Ma - Hussey, W.J. 1915POMic...1..160H
Hu_1912b Pub. Univ. Michigan Obs. 1, 160, 1912
Hu_1912c Ma - Hussey, W.J. 1915POMic...1..167H
Hu_1912c Pub. Univ. Michigan Obs. 1, 167, 1912
Hu_1927A Ma - Hussey, W.J. 1927sdsc.book......
Hu_1927A cited in SDS (Southern Double Star Cat.), 1927
Hu_1932A Ma - Hussey, W.J. 1932QB821.A43......
Hu_1932A cited in ADS (Aitken Double Star Cat.), 1932
Hu_9999 Ma - Hussey, W.J. ...................
Hu_9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17490-1615 HU 187 1998 8 86 3.3 9.06 11.86 K1V D 174901.11-161459.9
17490-1615 HU 187 1999 9 86 4.0 9.06 11.86 K1V D 174901.11-161459.9
17490-1615 HU 187 2010 10 78 3.9 9.06 11.86 K1V 174901.11-161459.9

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

 
 
WDS 17490-1615 HU 187 (HD 161925) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17490-1615 HU 187 (HD 161925) : MEASURES
 
 
No records found.

 
 
WDS 17490-1615 (HD 161925) : VIRTUAL EYEPIECE
 
 

17490-1615 HU 187A mag 9.06 Sp K1V 17490-1615 HU 187B sep 4.0 P.A. 83.60 mag 11.86 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 17490-1615 (HD 161925) : ALADIN DSS IMAGE @ 17h 49m 01.11s -16° 14' 59.9"
 
 
 
 
WDS 17490-1615 HU 187 (HD 161925) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17490-1615 HU 187 distance=1' 17506-1550 HJ 2811 distance=34' 17516-1633 WSI 63AB distance=42' 17516-1633 WSI 63AC distance=42' 17527-1603 ARA 96 distance=55' 17520-1651 TDT 543 distance=57' 17515-1529 FOX 208 distance=59' 17521-1534 FOX 23AB distance=62' 17521-1534 FOX 23AC distance=62' 17458-1533 FOX 207 distance=62' 17464-1526 FOX 21 distance=62' 17535-1623 WSI 64 distance=66' 17450-1646 VOU 42 distance=66' 17460-1706 ARA 263 distance=68' 17434-1612 ARA 95 distance=83' 17435-1649 HU 185 distance=86' 17517-1742 TDT 537 distance=96' 17425-1638 CRC 25AB distance=97' 17425-1638 CRC 25AC distance=97' 17466-1445 LSC 76 distance=97' 17536-1726 HDO 147AB distance=98' 17536-1726 SKF 85AC distance=98' 17422-1544 HU 184 distance=103' 17424-1535 KPP1470 distance=104' 17563-1549 HJ 2814AB distance=109' 17563-1549 HJ 2814AC distance=109' 17563-1549 DRS 62AD distance=109' 17547-1503 FOX 210 distance=110' 17567-1559 ARA 7 distance=112' 17475-1806 HU 186 distance=114' 17445-1751 ARA 262 distance=116' 17515-1417 RST3985 distance=124' 17406-1653 BRT 624 distance=128' 17420-1751 OCC 535 distance=140' 17394-1546 HU 181 distance=142' 17590-1620 RST3989 distance=144' 17397-1712 LDS 607 distance=145' 17457-1832 A 2251 distance=145' 17399-1511 FOX 206 distance=146' 17590-1658 ARA 97 distance=149' 17551-1818 ARA 448 distance=151' 17413-1757 HLD 138 distance=151' 17387-1547 RST3982 distance=152' 17385-1604 RST3981 distance=153' 17543-1828 A 2253 distance=153' 17388-1536 ALD 64 distance=153' 17415-1427 HU 183 distance=154' 17502-1339 LDS5856 distance=156' 17449-1839 A 2250 distance=156' 17382-1628 RST3980 distance=157' 17486-1854 A 2252 distance=159' 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 17490-1615 HU 187 84 4.2 1
Show 17506-1550 HJ 2811 117 14.4 34
Show 17516-1633 WSI 63 AB 51 5.1 42
Show 17516-1633 WSI 63 AC 8 3.0 42
Show 17527-1603 ARA 96 108 13.6 55
Show 17520-1651 TDT 543 185 0.5 57
Show 17515-1529 FOX 208 147 24.9 59
Show 17521-1534 FOX 23 AB 155 2.6 62
Show 17521-1534 FOX 23 AC 337 2.6 62
Show 17458-1533 FOX 207 67 16.0 62
Show 17464-1526 FOX 21 318 3.5 62
Show 17535-1623 WSI 64 102 2.1 66
Show 17450-1646 VOU 42 311 0.2 66
Show 17460-1706 ARA 263 42 12.2 68
Show 17434-1612 ARA 95 123 10.3 83
Show 17435-1649 HU 185 278 2.7 86
Show 17517-1742 TDT 537 231 0.5 96
Show 17425-1638 CRC 25 AB 123 8.9 97
Show 17425-1638 CRC 25 AC 276 3.2 97
Show 17466-1445 LSC 76 269 0.4 97
Show 17536-1726 HDO 147 AB 205 12.2 98
Show 17536-1726 SKF 85 AC 284 3.1 98
Show 17422-1544 HU 184 274 4.4 103
Show 17424-1535 KPP1470 152 11.1 104
Show 17563-1549 HJ 2814 AB 157 20.6 109
Show 17563-1549 HJ 2814 AC 350 39.3 109
Show 17563-1549 DRS 62 AD 60 1.9 109
Show 17547-1503 FOX 210 69 6.1 110
Show 17567-1559 ARA 7 155 13.6 112
Show 17475-1806 HU 186 317 1.0 114
Show 17445-1751 ARA 262 70 9.9 116
Show 17515-1417 RST3985 122 0.4 124
Show 17406-1653 BRT 624 279 3.2 128
Show 17420-1751 OCC 535 -1 0.1 140
Show 17394-1546 HU 181 42 1.0 142
Show 17590-1620 RST3989 171 2.4 144
Show 17397-1712 LDS 607 49 14.5 145
Show 17457-1832 A 2251 257 2.5 145
Show 17399-1511 FOX 206 7 7.2 146
Show 17590-1658 ARA 97 184 6.3 149
Show 17551-1818 ARA 448 68 7.6 151
Show 17413-1757 HLD 138 272 2.2 151
Show 17387-1547 RST3982 156 1.7 152
Show 17385-1604 RST3981 193 4.9 153
Show 17543-1828 A 2253 75 0.4 153
Show 17388-1536 ALD 64 194 1.9 153
Show 17415-1427 HU 183 294 1.2 154
Show 17502-1339 LDS5856 79 32.3 156
Show 17449-1839 A 2250 220 2.1 156
Show 17382-1628 RST3980 90 0.3 157
Show 17486-1854 A 2252 219 3.7 159

 
 
WDS 17490-1615 : COMPONENTS
 
 
  A
B pa=83.6°
sep=4.01"
 
 
17490-1615 A
 
 
Componente originario normalizzato AB Name HD 161925 Coord arcsec 2000 174901.11-161459.9 Mag 9.06
Spectral class K1V (yellow-orange) PmRA -2.00 PmDE -37.0 SAO 160834
HIP 87207 Tycho2 6249-00780-1 HD 161925 BD BD-16 4622
Tycho2
Tycho2 6249-00780-1 Pflag RAmdeg 267.25461218 DEmdeg -16.24998258
PmRA -4.2 PmDE -35.5 E RAmdeg 10 E DEmdeg 12
E pmRA 1.4 E pmDE 1.4 EpRAm 1990.42 EpDEm 1989.01
Num 8 Q RAmdeg 1.8 Q DEmdeg 0.9 Q pmRA 1.9
Q pmDE 0.9 BTmag 10.105 E BTmag 0.027 VTmag 9.062
E VTmag 0.017 Prox 39 TYC T HIP 87207
CCDM A RAdeg 267.25462000 DEdeg -16.24990306 EpRA 1990 1.96
EpDE 1990 1.94 E RAdeg 9.6 E DEdeg 13.3 Posflg
Corr -0.3
SAO
SAO 160834 DelFlag RA1950 PmRA1950 -0.0022
DE1950 PmDE1950 -0.023 Vmag 9.2 SpType G5
Double code Source 21 CatNum 6407 DM BD-16 4622
DMcomp BDsup HD 161925 M HD 0
GC RA1950rad 4.65187287 DE1950rad -0.28334364 PmRA2000 -0.002
PmDE2000 -0.021
Hipparcos
Catalog H HIP 87207 Proxy H RAhms 17 49 01.11
DEdms -16 14 59.6 Vmag 9.02 VarFlag R Vmag G
RAdeg 267.255 DEdeg -16.2499 AstroRef A Plx 24.29
CCDM 17490-1615 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 85 Rho 3.902 HD 161925 BD BD-16 4622
CD CP Dm number -16 4622 VIred 0.89
SpType K1V R SpType Coord arcsec 2000 174901.11-161459.6
Hipparcos 2
HIP 87207 Sn 15 So 3 Nc 2
RArad 4.6644729822 DErad -0.2836142319 Plx 24.08 PmRA 2.22
PmDE -34.06 E RArad 1.54 E DErad 0.86 E Plx 1.63
E pmRA 1.58 E pmDE 0.8 Hpmag 9.0641 E Hpmag 0.0022
SHp 0.018 VA 0 BV 0.88 E BV 0.015
VI 0.92
CCDM
Ccdm 17490-1615 RComp Comp A Note1
Note2 Discov num DRAs 0.95 DDEs 0.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.6 Sp G5 PmNote *
PmRA -32 PmDE -23 Dm number -16 4622 Cat1 BD
Name2 160834 Cat2 SAO HD 161925 M HD
ADS BDS A10808 M ADS BDS N IDS IDS 17432S1613A
HIC 87207
 
 
17490-1615 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 174901.39-161459.5 Mag 11.86 PmRA 3.00
PmDE -34.0 Calc delta mag 2.8 Calc coord yes
CCDM
Ccdm 17490-1615 RComp Comp B Note1
Note2 Discov num HU 187 DRAs DDEs
R dRAs Year 1900 Theta 087 Rho 4.4
Obs 3 Vmag 12.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10808 M ADS BDS N IDS IDS 17432S1613B
HIC 87207