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Doubles in session


Current system
17175-2746
TRN 24 AC


Nearby doubles
33' : 17151-2750
ELP 40

45' : 17207-2739
OCC 184

45' : 17207-2734
RST1953

53' : 17209-2721
BU 127

55' : 17146-2825
RSS 433

69' : 17177-2638
H 1 35

71' : 17228-2741
I 1002

76' : 17153-2636
SHJ 243AB
Guniibuu

78' : 17148-2855
OCC 745AB

79' : 17232-2804
SKF2545

80' : 17111-2724
REP 46AB

83' : 17122-2703
BU 125AB

83' : 17111-2723
REP 45AB

85' : 17122-2659
TDT 262

98' : 17102-2746
I 246

98' : 17112-2838
B 333

99' : 17133-2908
B 335AB

99' : 17248-2801
FIN 4

101' : 17116-2642
BU 956AB

103' : 17101-2715
LEI 29

104' : 17213-2916
VVV 41

107' : 17206-2924
RST3088

109' : 17115-2631
RST1939

110' : 17118-2626
HDS2429

112' : 17161-2556
RST3082

116' : 17260-2727
LDS 596



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

17175-2746 TRN 24 AC

 
 
17h 17m 27.60s -27° 46' 00.8" P.A. 147.00 sep 7.6 mag 7.95,15.00 Sp O+... dist. 10000 pc (32620 l.y.)
 
 
Coord 2000 17175-2746 Discov num TRN  24 Comp AC Coord arcsec 2000 17 17 27.60 -27 46 00.8
Date first 1998 Date last 2015 Obs 4
Pa first 148 Pa last 147.2 P.A. Now (θ) 147.2°
Sep first 7.3 Sep last 7.565 Sep. Now (ρ) 7.565"
Mag pri 7.95 Mag sec 15.00 delta mag (ΔM) 7.05 Spectral class O+... (blue)
Pri motion ra -002 Sec motion ra
Pri motion dec -001 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
17175-2746 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 185228 17 17 28 -27 46 01 TRN 24 AB 2001 2 206 4.0 7.95 16.00 8.05
Show 185228 17 17 28 -27 46 01 TRN 24 AC 2015 4 147 7.6 7.95 15.00 7.05 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ophiuchus SAO 185228 HIP 84588 Tycho2 6820-00171-1
Gaia DR2 4108133336765685376 HD 156212 CD CD-2711554 Distance 10000
Distance ly 32620
 
 
WDS 17175-2746 TRN 24 AC : NOTES
 
 
discov_num notes refcode
TRN 24 AB and AC: The image rotator was in an unknown state, so two possible
theta values are listed for the 2001.4959 observation - one for
zenith up and one for north up. Trn2008
HD 156212 Levato et al. (1988) find the radial velocities to be "probably Lev1988
variable", but since the total range in 11 measurements is 33 km/sec
we assign it to the "C" category. Msn1998a
 
 
REFERENCES
 
 
refcode metd author reference
Lev1988 - Levato, H., Morrell, N., Garcia, B., & Malaroda, S. 1988ApJS...68..319L
Lev1988 ApJS 68, 319, 1988
Msn1998a Sc j Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., 1998AJ....115..821M
Msn1998a ten Brummelaar, T.A., & McAlister, H.A.
Msn1998a AJ 115, 821, 1998
Trn2008 Ac j Turner, N.H., ten Brummelaar, T.A., Roberts, L.C., Mason, B.D., Hartkopf, W.I., & 2008AJ....136..554T
Trn2008 +E2 Gies, D.R.
Trn2008 +A AJ 136, 554, 2008
Trn2008 (Note: For some observations the image derotator was in an unknown state. In these
Trn2008 cases the theta value is either left blank or two possible values are listed - one
Trn2008 for zenith up and one for north up. For unresolved objects, the listed rho value
Trn2008 is the FWHM of the corrected stellar PSF. Larger FWHM values are indicative of
Trn2008 poorer seeing and/or non-optimal AO system tuning.)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17175-2746 TRN 24 AC 2001 3 144 7.3 7.95   N 171727.60-274600.8
17175-2746 TRN 24 AC 2015 4 147 7.6 7.95 15.00 O+... N 171727.60-274600.8

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

 
 
WDS 17175-2746 TRN 24 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17175-2746 TRN 24 AC : MEASURES
 
 
No records found.

 
 
WDS 17175-2746 : VIRTUAL EYEPIECE
 
 

17175-2746 TRN 24A mag 7.95 Sp O 17175-2746 TRN 24B sep 4.0 P.A. 203.30 mag 16 Sp ... 17175-2746 TRN 24C sep 7.3 P.A. 150.30 mag 15 Sp ... virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 17175-2746 : ALADIN DSS IMAGE @ 17h 17m 27.60s -27° 46' 00.8"
 
 
 
 
WDS 17175-2746 TRN 24 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17175-2746 TRN 24AC distance=0' 17151-2750 ELP 40 distance=33' 17207-2739 OCC 184 distance=45' 17207-2734 RST1953 distance=45' 17209-2721 BU 127 distance=53' 17146-2825 RSS 433 distance=55' 17177-2638 H 1 35 distance=69' 17228-2741 I 1002 distance=71' 17153-2636 SHJ 243BD distance=76' 17153-2636 SHJ 243AB (Guniibuu) distance=76' 17153-2636 SHJ 243AC (Guniibuu) distance=76' 17153-2636 SHJ 243AE (Guniibuu) distance=76' 17153-2636 SHJ 243AD (Guniibuu) distance=76' 17148-2855 OCC 745AB distance=78' 17232-2804 SKF2545 distance=79' 17111-2724 KRS 9Aa,Ab distance=80' 17111-2724 REP 46AB distance=80' 17122-2703 BU 125AB distance=83' 17122-2703 BU 125AC distance=83' 17111-2723 KRS 8Aa,Ab distance=83' 17111-2723 REP 45AB distance=83' 17111-2723 REP 45CD distance=83' 17122-2659 TDT 262 distance=85' 17113-2725 COR 10Aa,Ab distance=85' 17113-2725 CHN 26AC distance=85' 17113-2725 COR 10Aa,B distance=85' 17102-2746 I 246 distance=98' 17112-2838 B 333 distance=98' 17133-2908 OCC 744Aa,Ab distance=99' 17133-2908 B 335AB distance=99' 17248-2801 FIN 4 distance=99' 17116-2642 BU 956AB distance=101' 17116-2642 BU 956AC distance=101' 17101-2715 LEI 29 distance=103' 17213-2916 VVV 41 distance=104' 17206-2924 RST3088 distance=107' 17115-2631 RST1939 distance=109' 17118-2626 HDS2429 distance=110' 17161-2556 RST3082 distance=112' 17260-2727 LDS 596 distance=116' 17261-2736 I 1069 distance=116' 17134-2932 RST1943 distance=120' 17257-2659 I 1320 distance=120' 17228-2609 RST1957 distance=121' 17261-2833 RSS 440 distance=124' 17117-2924 RST1940 distance=124' 17193-2949 SKF 359 distance=126' 17184-2952 B 337 distance=128' 17231-2932 B 338 distance=130' 17086-2650 SEE 319AB distance=131' 17086-2650 SEE 319Aa,Ab distance=131' 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 17175-2746 TRN 24 AB 206 4.0
Show 17175-2746 TRN 24 AC 147 7.6
Show 17151-2750 ELP 40 190 0.1 33
Show 17207-2739 OCC 184 -1 0.1 45
Show 17207-2734 RST1953 313 1.9 45
Show 17209-2721 BU 127 91 5.4 53
Show 17146-2825 RSS 433 252 8.7 55
Show 17177-2638 H 1 35 337 5.8 69
Show 17228-2741 I 1002 39 3.5 71
Show 17153-2636 SHJ 243 BD 337 272.3 76
Show Guniibuu 17153-2636 SHJ 243 AB 138 5.1 76
Show Guniibuu 17153-2636 SHJ 243 AC 74 732.5 76
Show Guniibuu 17153-2636 SHJ 243 AE 313 38.2 76
Show Guniibuu 17153-2636 SHJ 243 AD 342 295.5 76
Show 17148-2855 OCC 745 AB -1 0.1 78
Show 17232-2804 SKF2545 124 3.5 79
Show 17111-2724 KRS 9 Aa,Ab 114 0.0 80
Show 17111-2724 REP 46 AB 209 3.1 80
Show 17122-2703 BU 125 AB 66 1.8 83
Show 17122-2703 BU 125 AC 82 82.3 83
Show 17111-2723 KRS 8 Aa,Ab 219 0.1 83
Show 17111-2723 REP 45 AB 109 3.4 83
Show 17111-2723 REP 45 CD 330 5.1 83
Show 17122-2659 TDT 262 247 0.7 85
Show 17113-2725 COR 10 Aa,Ab 257 0.2 85
Show 17113-2725 CHN 26 AC 330 5.1 85
Show 17113-2725 COR 10 Aa,B 328 1.1 85
Show 17102-2746 I 246 47 1.4 98
Show 17112-2838 B 333 100 0.4 98
Show 17133-2908 OCC 744 Aa,Ab -1 0.1 99
Show 17133-2908 B 335 AB 208 4.5 99
Show 17248-2801 FIN 4 204 1.2 99
Show 17116-2642 BU 956 AB 170 0.9 101
Show 17116-2642 BU 956 AC 146 66.3 101
Show 17101-2715 LEI 29 257 1.5 103
Show 17213-2916 VVV 41 3 8.7 104
Show 17206-2924 RST3088 336 0.7 107
Show 17115-2631 RST1939 72 0.7 109
Show 17118-2626 HDS2429 4 0.2 110
Show 17161-2556 RST3082 278 2.5 112
Show 17260-2727 LDS 596 312 19.6 116
Show 17261-2736 I 1069 348 5.7 116
Show 17134-2932 RST1943 173 3.3 120
Show 17257-2659 I 1320 192 0.5 120
Show 17228-2609 RST1957 102 1.0 121
Show 17261-2833 RSS 440 314 9.2 124
Show 17117-2924 RST1940 209 1.9 124
Show 17193-2949 SKF 359 317 11.9 126
Show 17184-2952 B 337 192 0.6 128
Show 17231-2932 B 338 101 5.0 130
Show 17086-2650 SEE 319 AB 211 7.6 131

 
 
WDS 17175-2746 : COMPONENTS
 
 
  A B
B pa=203.3°
sep=3.95"
 
C pa=150.3°
sep=7.32"
pa=117.7°
sep=5.87"
 
 
17175-2746 A
 
 
Coord arcsec 2000 171727.60-274600.8 Mag 7.95 Spectral class O (blue) PmRA -2.00
PmDE -1.0 SAO 185228 HIP 84588 Tycho2 6820-00171-1
HD 156212 CD CD-2711554
Tycho2
Tycho2 6820-00171-1 Pflag RAmdeg 259.36498334 DEmdeg -27.76689172
PmRA -2.3 PmDE -0.6 E RAmdeg 5 E DEmdeg 7
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.18 EpDEm 1990.49
Num 14 Q RAmdeg 1.0 Q DEmdeg 0.7 Q pmRA 1.0
Q pmDE 0.7 BTmag 8.474 E BTmag 0.016 VTmag 8.007
E VTmag 0.012 Prox 999 TYC T HIP 84588
CCDM RAdeg 259.36498889 DEdeg -27.76689000 EpRA 1990 1.73
EpDE 1990 1.46 E RAdeg 5.2 E DEdeg 6.5 Posflg
Corr 0.2
SAO
SAO 185228 DelFlag RA1950 PmRA1950 -0.001
DE1950 PmDE1950 -0.024 Vmag 7.6 SpType B2
Double code Source 24 CatNum 10917 DM CD-2711554
DMcomp BDsup HD 156212 M HD 0
GC RA1950rad 4.51308024 DE1950rad -0.48369707 PmRA2000 -0.0011
PmDE2000 -0.023
Hipparcos
Catalog H HIP 84588 Proxy RAhms 17 17 27.60
DEdms -27 46 00.8 Vmag 7.89 VarFlag R Vmag H
RAdeg 259.365 DEdeg -27.7669 AstroRef Plx 0.51
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 156212 BD
CD CD-2711554 CP Dm number -2711554 VIred 0.72
SpType B0Iab R SpType Coord arcsec 2000 171727.60-274600.8
Hipparcos 2
HIP 84588 Sn 5 So 0 Nc 1
RArad 4.5267730348 DErad -0.4846236534 Plx 0.1 PmRA -1.39
PmDE 0.15 E RArad 0.8 E DErad 0.46 E Plx 0.83
E pmRA 0.9 E pmDE 0.48 Hpmag 8.0209 E Hpmag 0.002
SHp 0.013 VA 0 BV 0.523 E BV 0.027
VI 0.72
 
 
17175-2746 B
 
 
Coord arcsec 2000 171727.48-274604.4 Mag 16 Spectral class ... Calc delta mag 8.05
Calc coord yes
 
 
17175-2746 C
 
 
Coord arcsec 2000 171727.87-274607.2 Mag 15 Spectral class ... Calc delta mag 7.05
Calc coord yes