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Doubles in session


Current system
19253-2431
FIN 327
Chi1 Sgr


Nearby doubles
17' : 19261-2418
KPP2171

21' : 19251-2410
ALD 74

22' : 19242-2416
RST3224

39' : 19263-2355
KPP 440

40' : 19273-2401
RST3227

58' : 19295-2422
OCC9052

60' : 19210-2441
LDS 677

63' : 19292-2357
OCC9051

69' : 19222-2337
ARA2258

74' : 19241-2319
B 435

75' : 19301-2354
UC 3957

81' : 19251-2551
UC 3924

81' : 19246-2311
UC 3918

82' : 19218-2324
ARA2257

83' : 19311-2410
OCC9053

87' : 19290-2540
FIN 11

87' : 19204-2526
UC 3893

89' : 19251-2303
RST3225AB

96' : 19320-2405
OCC9054

98' : 19276-2602
UC 3939

99' : 19311-2332
ARA2261

100' : 19285-2600
HJ 5119

104' : 19212-2303
UC 3899

105' : 19180-2504
HDS2730

106' : 19328-2456
UC 3973

107' : 19275-2612
SKF2076AB



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.

19253-2431 FIN 327 (Chi1 Sgr)

 
 
19h 25m 16.45s -24° 30' 30.4" P.A. 259.00 sep 0.1 mag 5.80,5.80 Sp Am dist. 77.22 pc (251.89 l.y.)
 
 
Coord 2000 19253-2431 Discov num FIN 327 Comp Coord arcsec 2000 19 25 16.45 -24 30 30.4
Date first 1951 Date last 2021 Obs 68
Pa first 271 Pa last 259.2 P.A. Now (θ) 253.4°
Sep first 0.1 Sep last 0.113 Sep. Now (ρ) 0.074"
Mag pri 5.80 Mag sec 5.80 delta mag (ΔM) 0 Spectral class Am (white)
Pri motion ra +052 Sec motion ra
Pri motion dec -055 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Chi1 Sgr Constellation Sagittarius SAO 188101 HIP 95477
Tycho2 6880-02342-1 Gaia DR2 6769709554832595456 HD 182369 HR 7362
GC 26789 CD CD-2415303 CP CP-24 6721 Bayer Chi 1 Sagittarii
Bayer name Chi1 Sgr Flamsteed 47 Sagittarii Flamsteed name 47 Sgr Distance 77.22
Distance ly 251.89 Bayer greek χ1 Sgr
 
 
ORBITAL ELEMENTS
 
 
Period (P)5.72y Periastron (T)1984.29y Semi-major axis (a)0.069a
Eccentricity (e)0.71 Inclination (i)97.3° Longitude of periastron (ω)10.7°
Node (Ω)79° Notesn ReferenceMsn1999c
Equinox2000 Last observation1992 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 253.9 0.080
2001 231.7 0.013
2002 266.7 0.038
2003 260.5 0.098
2004 258.2 0.116
2005 256.1 0.105
2006 252.5 0.065
2007 91.5 0.014
2008 263.6 0.061
2009 259.8 0.106
2010 257.7 0.116
2011 255.4 0.097
2012 250.0 0.047
2013 65.4 0.011
2014 262.0 0.078
2015 259.1 0.112
2016 257.1 0.114
2017 254.5 0.087
2018 244.1 0.026
2019 271.7 0.022
2020 261.0 0.092
2021 258.6 0.116
2022 256.5 0.109
2023 253.4 0.074
2024 174.8 0.005
2025 265.0 0.048
2026 260.2 0.102
2027 258.0 0.117
2028 255.8 0.102
2029 251.6 0.058
2030 80.9 0.020


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds19253-2431a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 19253-2431 FIN 327 (Chi1 Sgr) : NOTES
 
 
discov_num notes refcode
FIN 327 chi 1 Sgr = 47 Sgr. We apparently view the pair at nearly 90 deg
inclination, and since delta m for the components is near zero there is
considerable ambiguity between a high-eccentricity short-period orbit
and a low-eccentricity long-period one.
Orbital analysis included reanalysis of earlier CHARA speckle data in
order to derive absolute quadrants and possibly resolve this period
ambiguity. Hrt1993
Alternate spectral classification: A3/5IV/V.
Hipparcos astrometric solution adopted some elements from the orbit of HIP1997d
Finsen (1965). Fin1965b
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 4.62 +/- 1.35, 4.51, and 1.00 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Fin1965b orb - Finsen, W.S. 1965ROCi..124...85F
Fin1965b Republic Obs. Circ. 124, 85, 1965
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Hrt1993 Sc j Hartkopf, W.I., Mason, B.D., Barry, D.J., McAlister, H.A., Bagnuolo, W.G., & 1993AJ....106..352H
Hrt1993 Prieto, C.M.
Hrt1993 AJ 106, 352, 1993
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Msn1999c orb - Mason, B.D. & Hartkopf, W.I. 1999IAUDS.138Q...1M
Msn1999c Inf. Circ. 138, 1, 1999
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19253-2431 FIN 327 1992 52 80 0.1 5.80 5.80 Am NO 192516.45-243030.4
19253-2431 FIN 327 2008 57 81 0.1 5.80 5.80 Am NO 192516.45-243030.4
19253-2431 FIN 327 2013 59 87 0.1 5.80 5.80 Am NO 192516.45-243030.4
19253-2431 FIN 327 2014 61 81 0.1 5.80 5.80 Am NO 192516.45-243030.4
19253-2431 FIN 327 2015 62 80 0.1 5.80 5.80 Am NO 192516.45-243030.4
19253-2431 FIN 327 2017 63 77 0.0 5.80 5.80 Am NO 192516.45-243030.4
19253-2431 FIN 327 2019 65 84 0.1 5.80 5.80 Am NO 192516.45-243030.4
19253-2431 FIN 327 2020 66 260 0.1 5.80 5.80 Am NO 192516.45-243030.4
19253-2431 FIN 327 2021 68 259 0.1 5.80 5.80 Am NO 192516.45-243030.4

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

 
 
WDS 19253-2431 FIN 327 (Chi1 Sgr) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19253-2431 FIN 327 (Chi1 Sgr) : MEASURES
 
 
No records found.

 
 
WDS 19253-2431 (Chi1 Sgr) : VIRTUAL EYEPIECE
 
 

19253-2431 FIN 327A mag 5.8 Sp Am 19253-2431 FIN 327B sep 0.1 P.A. 258.20 mag 5.8 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 19253-2431 (Chi1 Sgr) : ALADIN DSS IMAGE @ 19h 25m 16.45s -24° 30' 30.4"
 
 
 
 
WDS 19253-2431 FIN 327 (Chi1 Sgr) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19253-2431 FIN 327 distance=0' 19261-2418 KPP2171 distance=17' 19251-2410 ALD 74 distance=21' 19242-2416 RST3224 distance=22' 19263-2355 KPP 440 distance=39' 19273-2401 RST3227 distance=40' 19295-2422 OCC9052 distance=58' 19210-2441 LDS 677 distance=60' 19292-2357 OCC9051 distance=63' 19222-2337 ARA2258 distance=69' 19241-2319 B 435 distance=74' 19301-2354 UC 3957 distance=75' 19251-2551 UC 3924 distance=81' 19246-2311 UC 3918 distance=81' 19218-2324 ARA2257 distance=82' 19311-2410 OCC9053 distance=83' 19290-2540 FIN 11 distance=87' 19204-2526 UC 3893 distance=87' 19251-2303 RST3225AB distance=89' 19251-2303 RST3225Aa,Ab distance=89' 19320-2405 OCC9054 distance=96' 19276-2602 UC 3939 distance=98' 19311-2332 ARA2261 distance=99' 19285-2600 HJ 5119 distance=100' 19212-2303 UC 3899 distance=104' 19180-2504 HDS2730 distance=105' 19328-2456 UC 3973 distance=106' 19275-2612 RSS 527BC distance=106' 19275-2612 SKF2076AB distance=107' 19232-2614 RST2108 distance=107' 19331-2432 UC 3974 distance=107' 19320-2335 OCC 650Aa,Ab distance=108' 19320-2335 B 2478AB distance=108' 19267-2619 SEE 375 distance=111' 19171-2443 RST3219 distance=112' 19264-2238 BRT1552 distance=114' 19310-2305 ARA2260 distance=116' 19221-2619 UC 3906 distance=117' 19198-2256 UC 3885 distance=120' 19289-2238 UC 3948 distance=123' 19191-2602 B 2876 distance=126' 19167-2526 HWE 89 distance=130' 19213-2232 UC 3900 distance=130' 19161-2510 J 1841AC distance=131' 19161-2510 BRT3084AB distance=131' 19200-2242 UC 3888 distance=131' 19164-2521 HJ 5101AB distance=131' 19164-2521 HJ 5101Aa,Ab distance=131' 19223-2226 I 1399 distance=132' 19217-2228 UC 3902 distance=132' 19350-2439 J 1851 distance=133' 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 19253-2431 FIN 327 259 0.1
Show 19261-2418 KPP2171 202 17.8 17
Show 19251-2410 ALD 74 348 4.1 21
Show 19242-2416 RST3224 119 1.1 22
Show 19263-2355 KPP 440 123 3.3 39
Show 19273-2401 RST3227 165 2.1 40
Show 19295-2422 OCC9052 -1 0.0 58
Show 19210-2441 LDS 677 149 71.0 60
Show 19292-2357 OCC9051 -1 0.0 63
Show 19222-2337 ARA2258 225 10.6 69
Show 19241-2319 B 435 87 3.6 74
Show 19301-2354 UC 3957 270 49.1 75
Show 19251-2551 UC 3924 286 46.8 81
Show 19246-2311 UC 3918 173 38.7 81
Show 19218-2324 ARA2257 260 7.2 82
Show 19311-2410 OCC9053 -1 0.0 83
Show 19290-2540 FIN 11 286 2.0 87
Show 19204-2526 UC 3893 45 36.6 87
Show 19251-2303 RST3225 AB 130 1.2 89
Show 19251-2303 RST3225 Aa,Ab 171 0.2 89
Show 19320-2405 OCC9054 -1 0.0 96
Show 19276-2602 UC 3939 343 33.9 98
Show 19311-2332 ARA2261 242 15.4 99
Show 19285-2600 HJ 5119 291 5.3 100
Show 19212-2303 UC 3899 62 75.7 104
Show 19180-2504 HDS2730 90 0.5 105
Show 19328-2456 UC 3973 90 99.4 106
Show 19275-2612 RSS 527 BC 153 7.1 106
Show 19275-2612 SKF2076 AB 294 69.7 107
Show 19232-2614 RST2108 284 3.4 107
Show 19331-2432 UC 3974 202 72.2 107
Show 19320-2335 OCC 650 Aa,Ab -1 0.1 108
Show 19320-2335 B 2478 AB 172 13.3 108
Show 19267-2619 SEE 375 168 12.7 111
Show 19171-2443 RST3219 358 4.9 112
Show 19264-2238 BRT1552 79 3.9 114
Show 19310-2305 ARA2260 277 10.1 116
Show 19221-2619 UC 3906 89 29.8 117
Show 19198-2256 UC 3885 83 14.7 120
Show 19289-2238 UC 3948 61 99.0 123
Show 19191-2602 B 2876 339 12.0 126
Show 19167-2526 HWE 89 20 2.8 130
Show 19213-2232 UC 3900 99 58.5 130
Show 19161-2510 J 1841 AC 286 25.1 131
Show 19161-2510 BRT3084 AB 314 4.1 131
Show 19200-2242 UC 3888 308 9.5 131
Show 19164-2521 HJ 5101 AB 305 21.4 131
Show 19164-2521 HJ 5101 Aa,Ab 128 0.7 131
Show 19223-2226 I 1399 317 0.4 132
Show 19217-2228 UC 3902 324 116.3 132
Show 19350-2439 J 1851 159 4.2 133

 
 
WDS 19253-2431 : COMPONENTS
 
 
  A
B pa=258.2°
sep=0.10"
 
 
19253-2431 A
 
 
Componente originario normalizzato AB Name Chi1 Sgr Coord arcsec 2000 192516.45-243030.4 Mag 5.8
Spectral class Am (white) PmRA 52.00 PmDE -55.0 SAO 188101
HIP 95477 Tycho2 6880-02342-1 HD 182369 HR 7362
GC 26789 CD CD-2415303 CP CP-24 6721 Bayer Chi 1 Sagittarii
Bayer name Chi1 Sgr Flamsteed 47 Sagittarii Flamsteed name 47 Sgr
Tycho2
Tycho2 6880-02342-1 Pflag RAmdeg 291.31868176 DEmdeg -24.50857986
PmRA 49.5 PmDE -53.6 E RAmdeg 3 E DEmdeg 4
E pmRA 0.7 E pmDE 0.8 EpRAm 1991.56 EpDEm 1991.40
Num 20 Q RAmdeg 1.7 Q DEmdeg 1.2 Q pmRA 1.7
Q pmDE 1.2 BTmag 5.290 E BTmag 0.014 VTmag 5.038
E VTmag 0.009 Prox 999 TYC T HIP 95477
CCDM RAdeg 291.31855889 DEdeg -24.50845917 EpRA 1990 1.87
EpDE 1990 1.89 E RAdeg 3.4 E DEdeg 3.8 Posflg
Corr 0.0
SAO
SAO 188101 DelFlag RA1950 PmRA1950 0.0041
DE1950 PmDE1950 -0.054 Vmag 5 SpType A5
Double code Source 70 CatNum 26789 DM CD-2415303
DMcomp BDsup HD 182369 M HD 0
GC 26789 RA1950rad 5.07120046 DE1950rad -0.42948009 PmRA2000 0.0041
PmDE2000 -0.054
Hipparcos
Catalog H HIP 95477 Proxy RAhms 19 25 16.45
DEdms -24 30 30.4 Vmag 5.02 VarFlag R Vmag G
RAdeg 291.319 DEdeg -24.5084 AstroRef + Plx 14.78
CCDM 19253-2431 N CCDM I Nsys 1 Ncomp 1
MultFlag O Source Qual M HIP
Theta Rho HD 182369 BD
CD CD-2415303 CP CP-24 6721 Dm number -2415303 VIred 0.26
SpType A4IV/V R SpType Coord arcsec 2000 192516.45-243030.4
Hipparcos 2
HIP 95477 Sn 75 So 4 Nc 1
RArad 5.0844677691 DErad -0.4277531308 Plx 12.95 PmRA 61.63
PmDE -50.66 E RArad 0.47 E DErad 0.28 E Plx 0.5
E pmRA 0.44 E pmDE 0.27 Hpmag 5.0816 E Hpmag 0.0006
SHp 0.004 VA 0 BV 0.235 E BV 0.008
VI 0.26
CCDM
Ccdm 19253-2431 RComp Comp A Note1
Note2 Discov num DRAs -1.49 DDEs 29.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.8 Sp A5 PmNote *
PmRA 55 PmDE -54 Dm number -2415303 Cat1 CD
Name2 188101 Cat2 SAO HD 182369 M HD
ADS BDS M ADS BDS N IDS IDS 19192S2442A
HIC 95477
 
 
19253-2431 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 192516.44-243030.4 Mag 5.8 Calc coord yes
CCDM
Ccdm 19253-2431 RComp Comp B Note1 *
Note2 Discov num FIN 327 DRAs DDEs
R dRAs Year 1951 Theta 084 Rho 0.1
Obs 5 Vmag 5.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 19192S2442B
HIC 95477