18530-0935 CHR 81 AB (HD 174866)

 
 
18h 53m 01.80s -09° 34' 32.0" P.A. 89.00 sep 0.2 mag 6.34, Sp A7V dist. 99.6 pc (324.9 l.y.)
 
 
Coord 2000 18530-0935 Discov num CHR  81 Comp AB Coord arcsec 2000 18 53 01.80 -09 34 32.0
Date first 1985 Date last 1985 Obs 1
Pa first 89 Pa last 88.9 P.A. Now (θ) 88.9°
Sep first 0.2 Sep last 0.182 Sep. Now (ρ) 0.182"
Mag pri 6.34 Mag sec delta mag (ΔM) Spectral class A7V (white)
Pri motion ra +037 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes N X W (See Notes, Dubious double, )
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 174866 Constellation Scutum SAO 142741 HIP 92674
Tycho2 5697-00410-1 HD 174866 HR 7110 GC 25897
BD BD-09 4876 Distance 99.6 Distance ly 324.9
 
 
WDS 18530-0935 CHR 81 AB (HD 174866) : NOTES
 
 
discov_num notes refcode
CHR 81 This system, first announced by McAlister and recalled in a later McA1984b
McAlister paper after repeated attempts at confirmation, has been McA1993
restored. While perhaps still spurious, the subsequent confirmation or
suspected duplicity (by another technique) makes the discovery
measurement somewhat more probable.
 
 
REFERENCES
 
 
refcode metd author reference
McA1984b Sc j McAlister, H.A. & Hartkopf, W.I. ...................
McA1984b Catalog of Interferometric Measurements of Binary Stars, CHARA Contrib. #1, 1984
McA1984b (previously unpublished KPNO 2.1m and 3.8m data)
McA1993 Sc j McAlister, H.A., Mason, B.D., Hartkopf, W.I., & Shara, M.M. 1993AJ....106.1639M
McA1993 +orb AJ 106, 1639, 1993
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18530-0935 CHR 81 AB 1985 1 89 0.2 6.34   A7V NXW 185301.80-093432.0

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WDS 18530-0935 CHR 81 AB (HD 174866) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18530-0935 CHR 81 AB (HD 174866) : MEASURES
 
 
No records found.

 
 
WDS 18530-0935 (HD 174866) : VIRTUAL EYEPIECE
 
 

18530-0935 CHR  81A mag 6.34 Sp A7V 18530-0935 CHR  81B sep 0.2 P.A. 88.90 virtual eyepiece
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Radius:
Components only
 
 
WDS 18530-0935 (HD 174866) : ALADIN DSS IMAGE @ 18h 53m 01.80s -09° 34' 32.0"
 
 
 
 
WDS 18530-0935 CHR 81 AB (HD 174866) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18530-0935  CHR  81AB distance=0' 18547-0912  J  2240 distance=35' 18532-1013  SZA   6 distance=39' 18554-1008  RST4608 distance=49' 18550-1013  RST4607 distance=49' 18561-0914  J  2242 distance=52' 18566-0911  J  2243 distance=61' 18492-0957  A  1888 distance=61' 18552-0835  J  2535 distance=68' 18575-0912  J  2244 distance=73' 18576-1001  HDS2688 distance=73' 18481-0950  J  2677 distance=75' 18509-0821  J  1638 distance=80' 18489-1027  RST4599 distance=81' 18480-1009  HDS2665 distance=82' 18501-0823  HDS2670 distance=84' 18566-1038  J  2536 distance=85' 18567-0826  J  2156AB distance=89' 18471-0939  RST4598AB distance=89' 18471-0939  J   106AC distance=89' 18567-0826  J  2156BC distance=89' 18490-0828  HDS2666Aa,Ab distance=90' 18490-0828  STF2388AB distance=90' 18490-0828  ABH 105AD distance=90' 18490-0828  ABH 105AE distance=90' 18490-0828  STF2388BC distance=91' 18587-0857  BRT 486 distance=92' 18499-1057  DAM 122 distance=95' 18467-0916  JNN 118 distance=96' 18498-1057  J  2926 distance=98' 18581-0832  TDT1152 distance=99' 18467-1008  A  1887 distance=99' 18497-1059  J  2925 distance=100' 18493-1058  HO  439 distance=101' 18598-0938  J  2685 distance=102' 18508-0759  BU  970 distance=102' 18490-1059  J  2531 distance=103' 18591-0846  J  1663AB distance=103' 18591-0846  J  1663AC distance=103' 18499-0802  TDT1076 distance=104' 18460-0928  HO   88 distance=104' 18505-0756  HJ  868AB distance=105' 18505-0756  ABH 106AC distance=105' 18505-0756  ABH 106AD distance=105' 18505-0756  ABH 106AE distance=105' 18505-0756  ABH 106AF distance=105' 18505-0756  ABH 106AG distance=105' 18505-0756  ABH 106AH distance=105' 18505-0756  ABH 106AI distance=105' 18505-0756  ABH 106AJ distance=105' 18505-0756  FOX 236AK distance=105' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 18530-0935 CHR 81 AB 89 0.2
Show 18547-0912 J 2240 236 4.6 35
Show 18532-1013 SZA 6 89 0.2 39
Show 18554-1008 RST4608 7 0.5 49
Show 18550-1013 RST4607 126 1.0 49
Show 18561-0914 J 2242 129 4.8 52
Show 18566-0911 J 2243 308 8.9 61
Show 18492-0957 A 1888 165 2.2 61
Show 18552-0835 J 2535 330 2.4 68
Show 18575-0912 J 2244 56 6.8 73
Show 18576-1001 HDS2688 197 0.3 73
Show 18481-0950 J 2677 298 6.0 75
Show 18509-0821 J 1638 264 7.9 80
Show 18489-1027 RST4599 125 1.1 81
Show 18480-1009 HDS2665 194 0.3 82
Show 18501-0823 HDS2670 315 0.1 84
Show 18566-1038 J 2536 164 2.9 85
Show 18567-0826 J 2156 AB 1 50.3 89
Show 18471-0939 RST4598 AB 244 1.7 89
Show 18471-0939 J 106 AC 151 4.4 89
Show 18567-0826 J 2156 BC 308 4.7 89
Show 18490-0828 HDS2666 Aa,Ab 257 0.2 90
Show 18490-0828 STF2388 AB 344 53.6 90
Show 18490-0828 ABH 105 AD 157 43.8 90
Show 18490-0828 ABH 105 AE 275 72.2 90
Show 18490-0828 STF2388 BC 18 21.1 91
Show 18587-0857 BRT 486 61 4.5 92
Show 18499-1057 DAM 122 303 8.6 95
Show 18467-0916 JNN 118 268 3.4 96
Show 18498-1057 J 2926 178 5.1 98
Show 18581-0832 TDT1152 140 1.6 99
Show 18467-1008 A 1887 265 3.4 99
Show 18497-1059 J 2925 325 7.4 100
Show 18493-1058 HO 439 157 3.5 101
Show 18598-0938 J 2685 307 6.4 102
Show 18508-0759 BU 970 107 1.6 102
Show 18490-1059 J 2531 59 3.2 103
Show 18591-0846 J 1663 AB 115 3.6 103
Show 18591-0846 J 1663 AC 136 14.2 103
Show 18499-0802 TDT1076 156 0.9 104
Show 18460-0928 HO 88 27 2.2 104
Show 18505-0756 HJ 868 AB 84 9.7 105
Show 18505-0756 ABH 106 AC 130 26.2 105
Show 18505-0756 ABH 106 AD 145 49.0 105
Show 18505-0756 ABH 106 AE 263 44.5 105
Show 18505-0756 ABH 106 AF 184 65.4 105
Show 18505-0756 ABH 106 AG 115 104.3 105
Show 18505-0756 ABH 106 AH 87 92.6 105
Show 18505-0756 ABH 106 AI 123 56.7 105
Show 18505-0756 ABH 106 AJ 257 77.7 105
Show 18505-0756 FOX 236 AK 320 6.4 105

 
 
WDS 18530-0935 : COMPONENTS
 
 
  A
B pa=88.9°
sep=0.18"
 
 
18530-0935 A
 
 
Name HD 174866 Coord arcsec 2000 185301.80-093432.0 Mag 6.34 Spectral class A7V (white)
PmRA 37.00 PmDE -3.0 SAO 142741 HIP 92674
Tycho2 5697-00410-1 HD 174866 HR 7110 GC 25897
BD BD-09 4876
Tycho2
Tycho2 5697-00410-1 Pflag RAmdeg 283.25753987 DEmdeg -9.57552005
PmRA 22.5 PmDE 15.5 E RAmdeg 4 E DEmdeg 4
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.40 EpDEm 1991.32
Num 16 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.8
Q pmDE 1.0 BTmag 6.572 E BTmag 0.015 VTmag 6.347
E VTmag 0.010 Prox 999 TYC T HIP 92674
CCDM RAdeg 283.25748806 DEdeg -9.57555583 EpRA 1990 1.80
EpDE 1990 1.69 E RAdeg 3.6 E DEdeg 4.0 Posflg
Corr -0.1
SAO
SAO 142741 DelFlag RA1950 PmRA1950 0.0025
DE1950 PmDE1950 -0.003 Vmag 6.3 SpType A3
Double code Source 70 CatNum 25897 DM BD-09 4876
DMcomp BDsup HD 174866 M HD 0
GC 25897 RA1950rad 4.9317884 DE1950rad -0.16821901 PmRA2000 0.0027
PmDE2000 -0.002
Hipparcos
Catalog H HIP 92674 Proxy RAhms 18 53 01.80
DEdms -09 34 32.0 Vmag 6.27 VarFlag R Vmag H
RAdeg 283.257 DEdeg -9.57556 AstroRef Plx 9.83
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 174866 BD BD-09 4876
CD CP Dm number -09 4876 VIred 0.55
SpType A7Vn R SpType Coord arcsec 2000 185301.80-093432.0
Hipparcos 2
HIP 92674 Sn 5 So 0 Nc 1
RArad 4.9437756843 DErad -0.1671250172 Plx 10.04 PmRA 24.54
PmDE 15.7 E RArad 0.46 E DErad 0.31 E Plx 0.48
E pmRA 0.49 E pmDE 0.4 Hpmag 6.3789 E Hpmag 0.0012
SHp 0.009 VA 0 BV 0.2 E BV 0.018
VI 0.55
 
 
18530-0935 B
 
 
Coord arcsec 2000 185301.81-093432.0 Calc delta mag 6.34 Calc coord yes