17175-2746 TRN  24AB

 
 
17h 17m 27.60s -27 46' 00.8" P.A. 206 sep 4 mag 7.95,16.00 Sp O+... dist. 10000 pc (32620 l.y.)
 
 
Coord 2000
17175-2746
Discov num
TRN  24
Comp
AB
Coord arcsec 2000
17 17 27.60 -27 46 00.8
Date first
2001
Date last
2001
Obs
2
Pa first
204
Pa last
206
P.A. Now (θ)
206°
Sep first
4.0
Sep last
4.0
Sep. Now (ρ)
4"
Mag pri
7.95
Mag sec
16.00
delta mag (ΔM)
8.05
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 185228 17175-2746 TRN 24 AB 2001 2001 2 206 4.0 7.95 16.00 8.05 <===
Show 185228 17175-2746 TRN 24 AC 1998 2001 3 145 7.3 7.95 15.00 7.05
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
206
Precise sep
4.04
Cdsa2 id
TRN 24 AB
Constellation
Ophiuchus
SAO
185228
HIP
84588
Tycho2
6820-00171-1
HD
156212
CD
CD-2711554
Ra deg
17.291
De deg
-27.76688888888889
Distance
10000
Distance ly
32620
last precise pa
206
last precise sep
4.04
 
 
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 AB 2001 2 204 4.0 7.95   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 24AB : 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.)
 
 
DISCOVERER
 
 
discov author
TRN Turner, N.H., ten Brummelaar, T.A., & Mason, B.D.
TRN Turner, N.H., ten Brummelaar, T.A., McAlister, H.A., Mason, B.D., Hartkopf, W.I.,
TRN Turner, N.H., ten Brummelaar, T.A., Roberts, L.C., Mason, B.D., Hartkopf, W.I., &
TRN Turner, N.H. & Roberts, L.C., Jr.

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


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

 
 
WDS 17175-2746 TRN 24AB : Virtual Eyepiece
 
 

17175-2746  TRN  24 A 17175-2746  TRN  24AB sep 4 P.A. 206 mag 7.95,16.00 Sp O+... 17175-2746  TRN  24AC sep 7.3 P.A. 145 mag 7.95,15.00 Sp O+... virtual eyepiece
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WDS 17175-2746 TRN 24AB : Aladin DSS image @ 17h 17m 27.60s -27 46' 00.8"