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Doubles in session


Current system
17509-3342
HDO 280 AC


Nearby doubles
10' : 17513-3350
B 1342

14' : 17498-3347
RST3128

23' : 17510-3405
KPP1254

29' : 17513-3411
OL 46

30' : 17507-3313
LDS 615

33' : 17484-3333
BRT1740

35' : 17492-3315
HDS2515

38' : 17504-3419
B 2419AB

39' : 17535-3321
BRT1742

41' : 17480-3401
TDS 883

43' : 17475-3343
BRT1738

44' : 17489-3418
B 1341AB

46' : 17482-3413
TDT 512

49' : 17474-3320
BRT1737

50' : 17536-3306
RST3131

55' : 17485-3428
OL 45

57' : 17531-3253
BRT3323

62' : 17507-3444
BRT1741

69' : 17532-3444
B 361

69' : 17533-3444
BU 1123

71' : 17536-3445
B 362

74' : 17522-3454
TDT 548

74' : 17539-3445
B 1871

74' : 17452-3319
JKS 16

75' : 17538-3447
WFC 201AB

75' : 17565-3408
JSP 934



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.

17509-3342 HDO 280 AC

 
 
17h 50m 52.34s -33° 42' 20.4" P.A. 219.00 sep 15.0 mag 8.36,10.63 Sp F6Ib+F8 dist. 88.65 pc (289.18 l.y.)
 
 
Coord 2000 17509-3342 Discov num HDO 280 Comp AC Coord arcsec 2000 17 50 52.34 -33 42 20.4
Date first 1897 Date last 2015 Obs 14
Pa first 215 Pa last 218.6 P.A. Now (θ) 218.6°
Sep first 15.0 Sep last 14.958 Sep. Now (ρ) 14.958"
Mag pri 8.36 Mag sec 10.63 delta mag (ΔM) 2.27 Spectral class F6Ib+F8 (yellow-white/yellow-white)
Pri motion ra -001 Sec motion ra -006
Pri motion dec -002 Sec motion dec -024
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.912
This double is not physical.
 
 
17509-3342 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show RY Sco 209340 17 50 52 -33 42 20 HDO 280 AB 1964 4 102 2.0 8.36 11.50 3.14
Show 209340 17 50 52 -33 42 20 HDO 280 AC 2015 14 219 15.0 8.36 10.63 2.27 <===
Show 209340 17 50 52 -33 42 20 I 9019 AD 2015 5 198 33.7 8.36 13.60 5.24
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name RY Sco Constellation Scorpius SAO 209340 HIP 87345
Tycho2 7381-00346-1 Gaia DR2 4041690364529590144 HD 162102 CD CD-3312533
CP CP-33 4644 Distance 88.65 Distance ly 289.18
 
 
WDS 17509-3342 HDO 280 AC : NOTES
 
 
discov_num notes refcode
HDO 280 Classical Cepheid RY Sco.
 
 
REFERENCES
 
 
refcode metd author reference
HdO1882a Mb - Harvard Obs. 1882AnHar..13...17.
HdO1882a Harvard Ann. 13, 17, 1882
HdO1882b Ma j Harvard Obs. (measure by Alden, G.I.) 1882AnHar..13...17.
HdO1882b Harvard Ann. 13, 17, 1882
HdO1882c Ma - Harvard Obs. (measure by Davis, W.M.) 1882AnHar..13...17.
HdO1882c Harvard Ann. 13, 17, 1882
HdO1906A Ma - Harvard Obs. 1906QB821.B972.....
HdO1906A cited in BDS (Burnham Double Star Cat., 1906)
HdO9999 Ma - Harvard Obs. ...................
HdO9999 Unpublished, manuscript or reference not found.
I__1895 Ma - Innes, R.T.A. 1895MNRAS..55..312I
I__1895 +Mb MNRAS 55, 312,544, 1895
I__1896 Mb - Innes, R.T.A. 1896JBAA....6..261I
I__1896 J. British Astron. Assoc. 6, 261, 1896
I__1897a Ma - Innes, R.T.A. 1897MNRAS..57..533I
I__1897a MNRAS 57, 533, 1897 (data also in I__1897b, 1897AN....143..171I
I__1897a I__1897c) 1897AN....144...89I
I__1897b Ma - Innes, R.T.A. 1897AN....143..171I
I__1897b AN 143, 171, 1897
I__1897c Ma - Innes, R.T.A. 1897AN....144...89I
I__1897c AN 144, 89, 1897
I__1897d Ma - Innes, R.T.A. 1897AN....145...93I
I__1897d AN 145, 93, 1897
I__1897e Ma - Innes, R.T.A. 1897MNRAS..57..456I
I__1897e +Mb MNRAS 57, 456, 1897
I__1897f Ma - Innes, R.T.A. 1897MNRAS..58...48I
I__1897f MNRAS 58, 48, 1897
I__1897g Ma - Innes, R.T.A. 1897AJ.....18...65I
I__1897g AJ 18, 65, 1897
I__1898 Ma - Innes, R.T.A. 1898AN....146..369I
I__1898 AN 146, 369, 1898
I__1899 Ma - Innes, R.T.A. 1899QB4.C22v2......
I__1899 Ann. Cape Obs. 2, Pt.2, 1899 (Innes Reference Catalog)
I__1901 Ma - Innes, R.T.A. 1901MNRAS..61..575.
I__1901 MNRAS 61, 575, 1901 (data also in I__1905) 1905AnCap...2....4I
I__1902a Ma - Innes, R.T.A. 1902MNRAS..62..470I
I__1902a MNRAS 62, 470, 1902 (data also in I__1905) 1905AnCap...2....4I
I__1902b Ma - Innes, R.T.A. 1902MNRAS..63...76I
I__1902b MNRAS 63, 76, 1902 (some data also in I__1905) 1905AnCap...2....4I
I__1903 - Innes, R.T.A. 1903MNRAS..64..130I
I__1903 MNRAS 64, 130, 1903 (data also in I__1905) 1905AnCap...2....4I
I__1903b Ma - Innes, R.T.A. 1903Obs....26..285I
I__1903b Obs 26, 285, 1903 (some data also in I__1905) 1905AnCap...2....4I
I__1905 Ma - Innes, R.T.A. 1905AnCap...2....4I
I__1905 Ann. Cape Obs. 2, Pt.4, 1905
I__1907 Ma - Innes, R.T.A. 1907Obs....30...61I
I__1907 Obs 30, 61, 1907
I__1908 - Innes, R.T.A. 1908Obs....31..289I
I__1908 Obs 31, 289, 1908 (measures also in I__1909)
I__1909 Ma - Innes, R.T.A. .
I__1909 Transvaal Obs. Circ. 1, 1, 1909
I__1910 Ma - Innes, R.T.A. .
I__1910 Transvaal Obs. Circ. 1, 21, 1910
I__1911 Ma - Innes, R.T.A. .
I__1911 Transvaal Obs. Circ. 1, 61, 1911
I__1912 Ma - Innes, R.T.A. .
I__1912 Transvaal Obs. Circ. 1, 111, 1912
I__1913a Ma - Innes, R.T.A. 1913CiUO....4...31.
I__1913a Union Obs. Johannesburg Circ. 4, 31, 1913
I__1913b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1913CiUO....4...31.
I__1913b Union Obs. Johannesburg Circ. 4, 31, 1913
I__1914 Ma - Innes, R.T.A. 1914CiUO...14...97.
I__1914 Union Obs. Johannesburg Circ. 14, 97, 1914
I__1915a Ma - Innes, R.T.A. 1915CiUO...24..185.
I__1915a Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915b Ma - Innes, R.T.A. (measure by Cox, G.W.) 1915CiUO...24..185.
I__1915b Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915c Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1915CiUO...24..185.
I__1915c Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915d Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1915CiUO...24..185.
I__1915d Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915e - Innes, R.T.A. 1915Obs....38..221I
I__1915e Obs 38, 221, 1915 (measures also in I__1916) 1916CiUO...33..249I
I__1915f - Innes, R.T.A. 1915Obs....38..333I
I__1915f Obs 38, 333, 1915 (measures also in I__1915) 1915CiUO...24..185I
I__1916a Ma - Innes, R.T.A. 1916CiUO...33..249I
I__1916a Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1916CiUO...33..249I
I__1916b Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1916CiUO...33..249I
I__1916c Union Obs. Johannesburg Circ. 33, 249, 1916
I__1917a Ma - Innes, R.T.A. 1917CiUO...37..285I
I__1917a Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917b Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1917CiUO...37..285I
I__1917b Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1917CiUO...37..285I
I__1917c Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917d Ma - Innes, R.T.A. (measure by Worssell, W.M.) 1917CiUO...37..285I
I__1917d Union Obs. Johannesburg Circ. 37, 285, 1917
I__1918 Ma - Innes, R.T.A. 1918CiUO...41..339I
I__1918 Union Obs. Johannesburg Circ. 41, 339, 1918
I__1927a Ma - Innes, R.T.A. 1927sdsc.book.....I
I__1927a +Po Southern Double Star Cat. 1927
I__1927b Ma - Innes, R.T.A. & van den Bos, W.H. 1927sdsc.book.....I
I__1927b Southern Double Star Cat. 1927
I__1932A Ma - Innes, R.T.A. 1932QB821.A43......
I__1932A cited in ADS (Aitken Double Star Cat.), 1932
I__1948a Ma - Innes, R.T.A. 1948CiUO..106..193I
I__1948a +Po Union Obs. Johannesburg Circ. 106, 193, 1948
I__1948b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1948CiUO..106..193I
I__1948b Union Obs. Johannesburg Circ. 106, 193, 1948
I__9999 Ma - Innes, R.T.A. ...................
I__9999 +Mb 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
17509-3342 HDO 280 AC 1998 11 219 14.7 8.36 10.63 N D 175052.34-334220.4
17509-3342 HDO 280 AC 2000 14 219 14.8 8.36 10.63 N D 175052.34-334220.4
17509-3342 HDO 280 AC 2015 14 219 15.0 8.36 10.63 F6Ib+F8 NU 175052.34-334220.4

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

 
 
WDS 17509-3342 HDO 280 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17509-3342 HDO 280 AC : MEASURES
 
 
No records found.

 
 
WDS 17509-3342 : VIRTUAL EYEPIECE
 
 

17509-3342 HDO 280A mag 8.36 Sp F6Ib 17509-3342 HDO 280B sep 1.7 P.A. 104.70 mag 11.5 17509-3342 HDO 280C sep 14.0 P.A. 213.60 mag 10.63 Sp F8 17509-3342 I 9019D sep 33.2 P.A. 195.40 mag 13.6 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 17509-3342 : ALADIN DSS IMAGE @ 17h 50m 52.34s -33° 42' 20.4"
 
 
 
 
WDS 17509-3342 HDO 280 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17509-3342 HDO 280AC distance=0' 17513-3350 B 1342 distance=10' 17498-3347 RST3128 distance=14' 17510-3405 KPP1254 distance=23' 17513-3411 OL 46 distance=29' 17507-3313 LDS 615 distance=30' 17484-3333 BRT1740 distance=33' 17492-3315 HDS2515 distance=35' 17504-3419 B 2419AB distance=38' 17504-3419 SIN 103AC distance=38' 17504-3419 SIN 103AD distance=38' 17535-3321 BRT1742 distance=39' 17480-3401 TDS 883 distance=41' 17475-3343 BRT1738 distance=43' 17489-3418 B 1341AB distance=44' 17489-3418 B 1341BC distance=44' 17482-3413 TDT 512 distance=46' 17474-3320 BRT1737 distance=49' 17536-3306 RST3131 distance=50' 17485-3428 OL 45 distance=55' 17531-3253 BRT3323 distance=57' 17507-3444 BRT1741 distance=62' 17532-3444 B 361 distance=69' 17533-3444 BU 1123 distance=69' 17536-3445 B 362 distance=71' 17522-3454 TDT 548 distance=74' 17539-3445 B 1871 distance=74' 17452-3319 JKS 16 distance=74' 17538-3447 WFC 201AB distance=75' 17538-3447 TDT 562Ba,Bb distance=75' 17565-3408 JSP 934 distance=75' 17534-3454 SEE 342 distance=78' 17535-3454 RST3986 distance=79' 17487-3457 B 1340 distance=80' 17530-3458 B 1345 distance=80' 17460-3435 HDS2510AB distance=81' 17485-3458 BRT3321 distance=82' 17539-3229 PRO 183 distance=83' 17553-3241 PRO 188 distance=83' 17519-3505 B 1343 distance=84' 17514-3506 VVV 2 distance=84' 17576-3352 B 1348 distance=85' 17540-3227 PRO 184 distance=86' 17567-3255 BRT1743 distance=87' 17501-3509 B 2418 distance=88' 17445-3434 B 917 distance=95' 17570-3248 KPP4071BC distance=95' 17444-3437 B 916 distance=98' 17466-3504 B 918 distance=98' 17569-3445 JSP 935 distance=98' 17482-3515 B 2415 distance=99' 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 17509-3342 HDO 280 AB 102 2.0
Show 17509-3342 HDO 280 AC 219 15.0
Show 17509-3342 I 9019 AD 198 33.7
Show 17513-3350 B 1342 111 0.5 10
Show 17498-3347 RST3128 27 1.0 14
Show 17510-3405 KPP1254 191 9.6 23
Show 17513-3411 OL 46 105 2.3 29
Show 17507-3313 LDS 615 176 101.3 30
Show 17484-3333 BRT1740 129 3.4 33
Show 17492-3315 HDS2515 184 0.2 35
Show 17504-3419 B 2419 AB 227 6.2 38
Show 17504-3419 SIN 103 AC 265 77.9 38
Show 17504-3419 SIN 103 AD 99 93.4 38
Show 17535-3321 BRT1742 206 3.5 39
Show 17480-3401 TDS 883 239 2.0 41
Show 17475-3343 BRT1738 67 5.4 43
Show 17489-3418 B 1341 AB 286 6.2 44
Show 17489-3418 B 1341 BC 358 5.4 44
Show 17482-3413 TDT 512 243 0.4 46
Show 17474-3320 BRT1737 333 2.8 49
Show 17536-3306 RST3131 109 0.6 50
Show 17485-3428 OL 45 39 2.2 55
Show 17531-3253 BRT3323 267 2.7 57
Show 17507-3444 BRT1741 308 3.6 62
Show 17532-3444 B 361 301 3.9 69
Show 17533-3444 BU 1123 264 0.3 69
Show 17536-3445 B 362 227 5.2 71
Show 17522-3454 TDT 548 140 2.5 74
Show 17539-3445 B 1871 95 0.3 74
Show 17452-3319 JKS 16 352 23.6 74
Show 17538-3447 WFC 201 AB 209 34.7 75
Show 17538-3447 TDT 562 Ba,Bb 157 0.5 75
Show 17565-3408 JSP 934 334 2.8 75
Show 17534-3454 SEE 342 202 0.4 78
Show 17535-3454 RST3986 75 0.9 79
Show 17487-3457 B 1340 214 0.8 80
Show 17530-3458 B 1345 43 0.2 80
Show 17460-3435 HDS2510 AB 267 0.1 81
Show 17485-3458 BRT3321 270 1.4 82
Show 17539-3229 PRO 183 333 5.6 83
Show 17553-3241 PRO 188 82 8.2 83
Show 17519-3505 B 1343 167 3.4 84
Show 17514-3506 VVV 2 22 35.1 84
Show 17576-3352 B 1348 5 0.9 85
Show 17540-3227 PRO 184 246 6.5 86
Show 17567-3255 BRT1743 109 1.9 87
Show 17501-3509 B 2418 31 7.0 88
Show 17445-3434 B 917 70 4.6 95
Show 17570-3248 KPP4071 BC 122 2.4 95
Show 17444-3437 B 916 203 4.7 98
Show 17466-3504 B 918 136 4.9 98

 
 
WDS 17509-3342 : COMPONENTS
 
 
  A B C
B pa=104.7°
sep=1.68"
 
C pa=213.6°
sep=14.03"
pa=219.8°
sep=14.66"
 
D pa=195.4°
sep=33.19"
pa=198.3°
sep=33.25"
pa=182.9°
sep=20.34"
 
 
17509-3342 A
 
 
Var name RY Sco Coord arcsec 2000 175052.34-334220.4 Mag 8.36 Spectral class F6Ib (yellow-white)
PmRA 6.00 PmDE -5.0 SAO 209340 HIP 87345
Tycho2 7381-00346-1 HD 162102 GC 24216 CD CD-3312533
CP CP-33 4644
Tycho2
Tycho2 7381-00346-1 Pflag RAmdeg 267.71809219 DEmdeg -33.70566698
PmRA -2.2 PmDE -0.5 E RAmdeg 12 E DEmdeg 13
E pmRA 1.4 E pmDE 1.4 EpRAm 1989.58 EpDEm 1988.82
Num 7 Q RAmdeg 0.8 Q DEmdeg 0.2 Q pmRA 0.8
Q pmDE 0.2 BTmag 10.117 E BTmag 0.039 VTmag 8.355
E VTmag 0.017 Prox 143 TYC T HIP 87345
CCDM RAdeg 267.71809833 DEdeg -33.70566611 EpRA 1990 1.64
EpDE 1990 1.51 E RAdeg 11.7 E DEdeg 13.8 Posflg
Corr 0.0
SAO
SAO 209340 DelFlag RA1950 PmRA1950 0.0022
DE1950 PmDE1950 0.025 Vmag 7.5 SpType G5
Double code Source 70 CatNum 24216 DM CD-3312533
DMcomp BDsup HD 162102 M HD 0
GC 24216 RA1950rad 4.65814762 DE1950rad -0.5880378 PmRA2000 0.0021
PmDE2000 0.026
Hipparcos
Catalog H HIP 87345 Proxy RAhms 17 50 52.34
DEdms -33 42 20.4 Vmag 8 VarFlag R Vmag H
RAdeg 267.718 DEdeg -33.7057 AstroRef * Plx 15.46
CCDM 17509-3342 N CCDM I Nsys 2 Ncomp 1
MultFlag V Source Qual M HIP
Theta Rho HD 162102 BD
CD CD-3312533 CP CP-33 4644 Dm number -3312533 VIred 1.64
SpType F6Ib R SpType Coord arcsec 2000 175052.34-334220.4
Hipparcos 2
HIP 87345 Sn 5 So 5 Nc 1
RArad 4.6725623001 DErad -0.588274864 Plx 11.28 PmRA -0.71
PmDE -2.33 E RArad 3.71 E DErad 2.18 E Plx 4.23
E pmRA 4.05 E pmDE 2.63 Hpmag 8.1089 E Hpmag 0.0625
SHp 0.278 VA 0 BV 1.66 E BV 0.51
VI 1.64
CCDM
Ccdm 17509-3342 RComp Comp A Note1
Note2 Discov num DRAs -1.54 DDEs -18.2
R dRAs 41 Year Theta Rho
Obs 3 Vmag Sp G4 PmNote *
PmRA 28 PmDE 25 Dm number -3312533 Cat1 CD
Name2 209340 Cat2 SAO HD 162102 M HD
ADS BDS M ADS BDS N IDS IDS 17443S3341A
HIC 87345
 
 
17509-3342 B
 
 
Coord arcsec 2000 175052.47-334220.8 Mag 11.5 Calc delta mag 3.14 Calc coord yes
CCDM
Ccdm 17509-3342 RComp Comp B Note1
Note2 Discov num HDO 280 DRAs DDEs
R dRAs Year 1928 Theta 102 Rho 2.2
Obs 2 Vmag 11.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 17443S3341B
HIC 87345
 
 
17509-3342 C
 
 
Coord arcsec 2000 175051.72-334232.1 Mag 10.63 Spectral class F8 (yellow-white) PmRA -6.00
PmDE -24.0 Tycho2 7381-00540-1 Calc delta mag 2.27 Calc coord yes
Tycho2
Tycho2 7381-00540-1 Pflag RAmdeg 267.71508299 DEmdeg -33.70881768
PmRA -3.4 PmDE -23.8 E RAmdeg 79 E DEmdeg 86
E pmRA 2.6 E pmDE 2.7 EpRAm 1974.88 EpDEm 1972.09
Num 4 Q RAmdeg 0.3 Q DEmdeg 0.7 Q pmRA 0.3
Q pmDE 0.7 BTmag 11.413 E BTmag 0.113 VTmag 10.627
E VTmag 0.107 Prox 143 TYC HIP
CCDM RAdeg 267.71509167 DEdeg -33.70875722 EpRA 1990 1.59
EpDE 1990 1.53 E RAdeg 91.4 E DEdeg 102.2 Posflg
Corr 0.1
CCDM
Ccdm 17509-3342 RComp Comp C Note1
Note2 Discov num HDO 280 DRAs -2.33 DDEs -29.9
R dRAs 41 Year 1928 Theta 221 Rho 13.3
Obs 2 Vmag 10.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17443S3341C
HIC 87343
 
 
17509-3342 D
 
 
Coord arcsec 2000 175051.63-334252.4 Mag 13.6 PmRA -5.00 PmDE -20.0
Calc delta mag 5.24 Calc coord yes