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Doubles in session


Current system
18080-1637
RST 3996
HD 165704


Nearby doubles
23' : 18093-1624
BRT 627

32' : 18079-1709
ARA 265

38' : 18106-1645
S 700AB

39' : 18102-1616
ARA 98

41' : 18066-1712
HJ 2818

41' : 18103-1700
ARA 268

42' : 18095-1712
SKF 94AB

42' : 18107-1624
FEN 27

43' : 18099-1710
ARA 267

47' : 18112-1642
RST4000

51' : 18108-1709
HU 195AB

55' : 18046-1702
HU 194

57' : 18041-1644
RST3993

59' : 18044-1610
BRT 626

63' : 18117-1605
J 1620AB

65' : 18112-1723
RST3161

73' : 18128-1618
HJ 2821AB

78' : 18105-1745
J 2197AB

80' : 18118-1541
HO 429

80' : 18087-1756
ARA 266AB

80' : 18124-1548
BRT 586

92' : 18143-1631
J 1648

96' : 18130-1537
J 2200

99' : 18125-1522
LV 7AB

100' : 18090-1815
ARA 454

102' : 18136-1536
BU 131AB



Selections
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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.

18080-1637 RST 3996 (HD 165704)

 
 
18h 07m 58.55s -16° 37' 04.9" P.A. 90.00 sep 0.2 mag 9.80,9.80 Sp B9IV/V
 
 
Coord 2000 18080-1637 Discov num RST3996 Comp Coord arcsec 2000 18 07 58.55 -16 37 04.9
Date first 1937 Date last 2018 Obs 7
Pa first 79 Pa last 90.4 P.A. Now (θ) 90.4°
Sep first 0.2 Sep last 0.162 Sep. Now (ρ) 0.162"
Mag pri 9.80 Mag sec 9.80 delta mag (ΔM) 0 Spectral class B9IV/V (blue-white)
Pri motion ra -011 Sec motion ra
Pri motion dec -006 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 165704 Constellation Sagittarius SAO 161096 Tycho2 6251-00371-1
Gaia DR2 4144142617415812736 HD 165704
 
 
WDS 18080-1637 RST 3996 (HD 165704) : NOTES
 
 
discov_num notes refcode
RST3996 There was a large change, angle decreasing, during the unobserved
interval 1951-1990.
 
 
REFERENCES
 
 
refcode metd author reference
Rst1933 T - Rossiter, R.A. 1933MmRAS..65...27R
Rst1933 MemRAS 65, 27, 1933
Rst1937 Ma - Rossiter, R.A. 1937MmRAS..65...51R
Rst1937 MemRAS 65, 51, 1937
Rst1943 Ma - Rossiter, R.A. 1943POMic...8..133R
Rst1943 Pub. Univ. Michigan Obs. 8, 133, 1943
Rst1944 - Rossiter, R.A. 1944POMic...9....1R
Rst1944 Pub. Univ. Michigan Obs. 9, 1, 1944
Rst1947 Ma - Rossiter, R.A. 1947POMic...9....7R
Rst1947 Pub. Univ. Michigan Obs. 9, 7, 1947
Rst1955 Ma j Rossiter, R.A. 1955POMic..11....1R
Rst1955 +P+ Pub. Univ. Michigan Obs. 11, 1, 1955
Rst1964 Ma - Rossiter, R.A. 1964POMic...9...73R
Rst1964 Pub. Univ. Michigan Obs. 9, 73, 1964
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18080-1637 RST3996 1990 5 351 0.3 9.80 9.80 B9IV/V N 180758.55-163704.9
18080-1637 RST3996 2017 6 91 0.2 9.80 9.80 B9IV/V N 180758.55-163704.9
18080-1637 RST3996 2018 7 90 0.2 9.80 9.80 B9IV/V N 180758.55-163704.9

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

 
 
WDS 18080-1637 RST 3996 (HD 165704) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18080-1637 RST 3996 (HD 165704) : MEASURES
 
 
No records found.

 
 
WDS 18080-1637 (HD 165704) : VIRTUAL EYEPIECE
 
 

18080-1637 RST3996A mag 9.8 Sp B9IV/V 18080-1637 RST3996B sep 0.2 P.A. 90.40 mag 9.8 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 18080-1637 (HD 165704) : ALADIN DSS IMAGE @ 18h 07m 58.55s -16° 37' 04.9"
 
 
 
 
WDS 18080-1637 RST 3996 (HD 165704) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18080-1637 RST3996 distance=0' 18093-1624 BRT 627 distance=23' 18079-1709 ARA 265 distance=32' 18106-1645 S 700AB distance=38' 18106-1645 S 700AC distance=38' 18106-1645 ABH 94AD distance=38' 18106-1645 ABH 94AE distance=38' 18106-1645 ABH 94AF distance=38' 18106-1645 S 700AG distance=38' 18102-1616 ARA 98 distance=39' 18066-1712 HJ 2818 distance=41' 18103-1700 ARA 268 distance=41' 18095-1712 SKF 94AB distance=42' 18095-1712 SKF 94AC distance=42' 18107-1624 FEN 27 distance=42' 18099-1710 ARA 267 distance=43' 18112-1642 RST4000 distance=47' 18108-1709 HU 195AB distance=51' 18108-1709 HJ 593AC distance=51' 18046-1702 HU 194 distance=55' 18041-1644 RST3993 distance=57' 18044-1610 BRT 626 distance=59' 18117-1605 J 1620BC distance=63' 18117-1605 J 1620BD distance=63' 18117-1605 J 1620AB distance=63' 18117-1605 ABH 95AE distance=63' 18117-1605 ABH 95AF distance=63' 18112-1723 RST3161 distance=65' 18128-1618 HJ 2821AB distance=73' 18128-1618 BU 1463AC distance=73' 18105-1745 J 2197AB distance=78' 18105-1745 J 2197BC distance=79' 18118-1541 HO 429 distance=80' 18087-1756 TDT 706Aa,Ab distance=80' 18087-1756 ARA 266AB distance=80' 18124-1548 BRT 586 distance=80' 18143-1631 J 1648 distance=92' 18130-1537 J 2200 distance=96' 18125-1522 LV 7AB distance=99' 18125-1522 LV 7AC distance=99' 18125-1522 AOT 71AB,D distance=99' 18090-1815 ARA 454 distance=100' 18136-1536 BU 131BC distance=102' 18136-1536 BU 131AB distance=102' 18136-1536 FOX 221AD distance=102' 18136-1536 BU 131AC distance=102' 18010-1614 TDT 637 distance=103' 18115-1807 ARA 457 distance=103' 18034-1518 BRT 625 distance=103' 18045-1505 HJ 5013 distance=106' 18086-1823 GAU9002 distance=106' 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 18080-1637 RST3996 90 0.2
Show 18093-1624 BRT 627 220 4.6 23
Show 18079-1709 ARA 265 326 14.2 32
Show 18106-1645 S 700 AB 291 18.8 38
Show 18106-1645 S 700 AC 353 28.6 38
Show 18106-1645 ABH 94 AD 348 47.7 38
Show 18106-1645 ABH 94 AE 65 58.0 38
Show 18106-1645 ABH 94 AF 49 99.2 38
Show 18106-1645 S 700 AG 297 35.6 38
Show 18102-1616 ARA 98 76 9.0 39
Show 18066-1712 HJ 2818 139 17.7 41
Show 18103-1700 ARA 268 304 14.0 41
Show 18095-1712 SKF 94 AB 243 4.6 42
Show 18095-1712 SKF 94 AC 279 6.2 42
Show 18107-1624 FEN 27 21 4.6 42
Show 18099-1710 ARA 267 348 14.7 43
Show 18112-1642 RST4000 292 0.5 47
Show 18108-1709 HU 195 AB 71 1.3 51
Show 18108-1709 HJ 593 AC 312 19.8 51
Show 18046-1702 HU 194 297 0.4 55
Show 18041-1644 RST3993 14 1.0 57
Show 18044-1610 BRT 626 10 3.7 59
Show 18117-1605 J 1620 BC 235 7.3 63
Show 18117-1605 J 1620 BD 11 8.0 63
Show 18117-1605 J 1620 AB 272 27.8 63
Show 18117-1605 ABH 95 AE 346 46.8 63
Show 18117-1605 ABH 95 AF 300 120.2 63
Show 18112-1723 RST3161 241 0.4 65
Show 18128-1618 HJ 2821 AB 278 7.8 73
Show 18128-1618 BU 1463 AC 12 53.1 73
Show 18105-1745 J 2197 AB 109 72.6 78
Show 18105-1745 J 2197 BC 82 6.2 79
Show 18118-1541 HO 429 30 4.3 80
Show 18087-1756 TDT 706 Aa,Ab 98 0.8 80
Show 18087-1756 ARA 266 AB 125 11.9 80
Show 18124-1548 BRT 586 76 5.1 80
Show 18143-1631 J 1648 90 6.2 92
Show 18130-1537 J 2200 222 7.7 96
Show 18125-1522 LV 7 AB 272 3.4 99
Show 18125-1522 LV 7 AC 240 33.7 99
Show 18125-1522 AOT 71 AB,D 153 18.8 99
Show 18090-1815 ARA 454 349 14.6 100
Show 18136-1536 BU 131 BC 310 6.2 102
Show 18136-1536 BU 131 AB 277 3.2 102
Show 18136-1536 FOX 221 AD 34 40.8 102
Show 18136-1536 BU 131 AC 300 9.2 102
Show 18010-1614 TDT 637 313 0.6 103
Show 18115-1807 ARA 457 3 14.3 103
Show 18034-1518 BRT 625 139 3.9 103
Show 18045-1505 HJ 5013 334 12.7 106
Show 18086-1823 GAU9002 125 26.8 106

 
 
WDS 18080-1637 : COMPONENTS
 
 
  A
B pa=90.4°
sep=0.16"
 
 
18080-1637 A
 
 
Componente originario normalizzato AB Name HD 165704 Coord arcsec 2000 180758.55-163704.9 Mag 9.8
Spectral class B9IV/V (blue-white) PmRA -11.00 PmDE -6.0 SAO 161096
Tycho2 6251-00371-1 HD 165704 DM BD-16 4718
Tycho2
Tycho2 6251-00371-1 Pflag RAmdeg 271.99399418 DEmdeg -16.61805040
PmRA 1.0 PmDE -2.5 E RAmdeg 14 E DEmdeg 18
E pmRA 1.4 E pmDE 1.4 EpRAm 1988.53 EpDEm 1986.81
Num 8 Q RAmdeg 0.9 Q DEmdeg 0.9 Q pmRA 0.9
Q pmDE 1.0 BTmag 10.046 E BTmag 0.030 VTmag 9.631
E VTmag 0.028 Prox 999 TYC T HIP
CCDM RAdeg 271.99399278 DEdeg -16.61804528 EpRA 1990 1.78
EpDE 1990 1.78 E RAdeg 15.2 E DEdeg 19.5 Posflg
Corr -0.1
SAO
SAO 161096 DelFlag RA1950 PmRA1950 -0.0011
DE1950 PmDE1950 -0.022 Vmag 9.3 SpType B9
Double code Source 21 CatNum 6538 DM BD-16 4718
DMcomp BDsup HD 165704 M HD 0
GC RA1950rad 4.73455545 DE1950rad -0.29017928 PmRA2000 -0.0009
PmDE2000 -0.02
CCDM
Ccdm 18080-1637 RComp Comp A Note1
Note2 Discov num DRAs -1.58 DDEs -6.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.8 Sp B9 PmNote *
PmRA -16 PmDE -22 Dm number -16 4718 Cat1 BD
Name2 161096 Cat2 SAO HD 165704 M HD
ADS BDS M ADS BDS N IDS IDS 18022S1638A
HIC
 
 
18080-1637 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 180758.56-163704.9 Mag 9.8 Calc coord yes
CCDM
Ccdm 18080-1637 RComp Comp B Note1
Note2 Discov num RST3996 DRAs DDEs
R dRAs Year 1937 Theta 079 Rho 0.2
Obs 4 Vmag 9.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18022S1638B
HIC