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Current system
17312-7310
B 2047
HD 157578


Nearby doubles
20' : 17308-7329
HEI 390

36' : 17288-7236
WFC 194

41' : 17402-7324
TDT 460

46' : 17219-7330
UC 3330

50' : 17207-7330
B 2832

52' : 17348-7400
HEI 391

56' : 17188-7325
B 2829

57' : 17190-7331
TOB 341

59' : 17281-7213
HEI 388

61' : 17182-7332
TOB 340

63' : 17269-7211
TDT 355

66' : 17343-7414
B 2839

66' : 17270-7413
TDT 358

68' : 17239-7211
RSS 439

70' : 17426-7400
TDT 474

71' : 17388-7208
HJ 4954

74' : 17376-7201
UC 3378

75' : 17141-7312
TDT 279

76' : 17163-7233
B 2046

80' : 17184-7408
UC 3320

82' : 17443-7213
HDO 275

84' : 17147-7355
TDT 286

84' : 17133-7243
HJ 4914

84' : 17395-7426
TDT 456

90' : 17285-7141
TDT 372

91' : 17492-7227
TDT 520



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

17312-7310 B 2047 (HD 157578)

 
 
17h 31m 14.02s -73° 09' 45.3" P.A. 237.00 sep 1.0 mag 9.06,10.74 Sp K3III dist. 1052.63 pc (3433.68 l.y.)
 
 
Coord 2000 17312-7310 Discov num B  2047 Comp Coord arcsec 2000 17 31 14.02 -73 09 45.3
Date first 1935 Date last 2016 Obs 5
Pa first 242 Pa last 237 P.A. Now (θ) 237°
Sep first 1.0 Sep last 1.028 Sep. Now (ρ) 1.028"
Mag pri 9.06 Mag sec 10.74 delta mag (ΔM) 1.68 Spectral class K3III (yellow-orange)
Pri motion ra +001 Sec motion ra +001
Pri motion dec +001 Sec motion dec +001
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 157578 Constellation Apus HIP 85737 Tycho2 9288-02110-1
Gaia DR2 5803400187347781504 HD 157578 CP CP-73 1838 Distance 1052.63
Distance ly 3433.68
 
 
WDS 17312-7310 B 2047 (HD 157578) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
idgroup discov author
1 B van den Bos, W.H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17312-7310 B 2047 1991 4 236 1.1 9.06 10.74 K3III D 173114.02-730945.3
17312-7310 B 2047 2016 5 237 1.0 9.06 10.74 K3III 173114.02-730945.3

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

 
 
WDS 17312-7310 B 2047 (HD 157578) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17312-7310 B 2047 (HD 157578) : MEASURES
 
 
No records found.

 
 
WDS 17312-7310 (HD 157578) : VIRTUAL EYEPIECE
 
 

17312-7310 B 2047A mag 9.06 Sp K3III 17312-7310 B 2047B sep 0.6 P.A. 204.00 mag 10.74 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 17312-7310 (HD 157578) : ALADIN DSS IMAGE @ 17h 31m 14.02s -73° 09' 45.3"
 
 
 
 
WDS 17312-7310 B 2047 (HD 157578) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17312-7310 B 2047 distance=0' 17308-7329 HEI 390 distance=20' 17288-7236 WFC 194 distance=36' 17402-7324 TDT 460 distance=41' 17219-7330 UC 3330 distance=46' 17207-7330 B 2832 distance=50' 17348-7400 HEI 391 distance=52' 17188-7325 B 2829 distance=56' 17190-7331 TOB 341 distance=57' 17281-7213 HEI 388 distance=59' 17182-7332 TOB 340 distance=61' 17269-7211 TDT 355 distance=63' 17343-7414 B 2839 distance=66' 17270-7413 TDT 358 distance=66' 17239-7211 RSS 439 distance=68' 17426-7400 TDT 474 distance=70' 17388-7208 HJ 4954 distance=71' 17376-7201 UC 3378 distance=74' 17141-7312 TDT 279 distance=75' 17163-7233 B 2046 distance=76' 17184-7408 UC 3320 distance=80' 17443-7213 HDO 275 distance=82' 17147-7355 TDT 286 distance=84' 17133-7243 HJ 4914 distance=84' 17395-7426 TDT 456 distance=84' 17285-7141 TDT 372 distance=90' 17492-7227 TDT 520 distance=91' 17148-7214 TDT 287 distance=92' 17477-7214 HEI 392 distance=93' 17499-7221 UC 3420 distance=97' 17243-7138 HEI 387 distance=98' 17290-7131 TDT 377 distance=100' 17152-7200 UC 3311 distance=101' 17305-7455 TDT 390 distance=105' 17141-7427 TDT 280 distance=106' 17483-7429 LDS 608 distance=107' 17358-7124 B 2411 distance=108' 17162-7146 B 2405 distance=108' 17296-7122 TDT 379 distance=108' 17260-7457 B 2836 distance=110' 17149-7442 SWR 215 distance=115' 17341-7115 KPP4043 distance=116' 17424-7456 HEI 550 distance=116' 17401-7121 TDT 457 distance=117' 17315-7112 B 2838 distance=118' 17258-7114 B 2835 distance=119' 17143-7135 UC 3309 distance=123' 17303-7107 B 2409 distance=123' 17301-7107 TDT 384 distance=124' 17452-7459 B 2048 distance=124' 17113-7144 B 2045 distance=125' 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 17312-7310 B 2047 237 1.0 0
Show 17308-7329 HEI 390 272 0.7 20
Show 17288-7236 WFC 194 75 7.6 36
Show 17402-7324 TDT 460 250 2.4 41
Show 17219-7330 UC 3330 310 51.8 46
Show 17207-7330 B 2832 346 5.5 50
Show 17348-7400 HEI 391 55 0.2 52
Show 17188-7325 B 2829 34 2.8 56
Show 17190-7331 TOB 341 229 30.2 57
Show 17281-7213 HEI 388 314 1.2 59
Show 17182-7332 TOB 340 244 16.3 61
Show 17269-7211 TDT 355 48 0.5 63
Show 17343-7414 B 2839 48 4.4 66
Show 17270-7413 TDT 358 355 0.5 66
Show 17239-7211 RSS 439 269 10.4 68
Show 17426-7400 TDT 474 335 0.5 70
Show 17388-7208 HJ 4954 306 14.7 71
Show 17376-7201 UC 3378 275 28.0 74
Show 17141-7312 TDT 279 138 3.8 75
Show 17163-7233 B 2046 273 3.2 76
Show 17184-7408 UC 3320 64 4.0 80
Show 17443-7213 HDO 275 63 0.7 82
Show 17147-7355 TDT 286 158 1.1 84
Show 17133-7243 HJ 4914 256 3.4 84
Show 17395-7426 TDT 456 161 2.1 84
Show 17285-7141 TDT 372 122 2.6 90
Show 17492-7227 TDT 520 336 0.4 91
Show 17148-7214 TDT 287 113 1.8 92
Show 17477-7214 HEI 392 129 0.9 93
Show 17499-7221 UC 3420 17 20.8 97
Show 17243-7138 HEI 387 5 1.6 98
Show 17290-7131 TDT 377 206 0.5 100
Show 17152-7200 UC 3311 197 34.2 101
Show 17305-7455 TDT 390 284 0.5 105
Show 17141-7427 TDT 280 65 0.4 106
Show 17483-7429 LDS 608 6 14.7 107
Show 17358-7124 B 2411 344 0.4 108
Show 17162-7146 B 2405 293 1.2 108
Show 17296-7122 TDT 379 24 1.2 108
Show 17260-7457 B 2836 56 3.9 110
Show 17149-7442 SWR 215 42 15.5 115
Show 17341-7115 KPP4043 235 8.0 116
Show 17424-7456 HEI 550 314 1.8 116
Show 17401-7121 TDT 457 104 2.3 117
Show 17315-7112 B 2838 40 12.6 118
Show 17258-7114 B 2835 38 5.1 119
Show 17143-7135 UC 3309 86 11.4 123
Show 17303-7107 B 2409 120 1.6 123
Show 17301-7107 TDT 384 175 1.7 124
Show 17452-7459 B 2048 165 3.0 124
Show 17113-7144 B 2045 108 0.6 125

 
 
WDS 17312-7310 : COMPONENTS
 
 
  A
B pa=204.0°
sep=0.61"
 
 
17312-7310 A
 
 
Name HD 157578 Coord arcsec 2000 173114.02-730945.3 Mag 9.06 Spectral class K3III (yellow-orange)
PmRA 1.00 PmDE 1.0 HIP 85737 Tycho2 9288-02110-1
HD 157578 CP CP-73 1838
Tycho2
Tycho2 9288-02110-1 Pflag P RAmdeg 262.80842000 DEmdeg -73.16257571
PmRA 1.1 PmDE 1.4 E RAmdeg 10 E DEmdeg 9
E pmRA 2.0 E pmDE 2.0 EpRAm 1991.20 EpDEm 1991.37
Num 6 Q RAmdeg 1.3 Q DEmdeg 0.7 Q pmRA 1.4
Q pmDE 0.6 BTmag 10.897 E BTmag 0.034 VTmag 9.059
E VTmag 0.014 Prox 10 TYC T HIP 85737
CCDM A RAdeg 262.80859694 DEdeg -73.16254194 EpRA 1990 1.62
EpDE 1990 1.70 E RAdeg 10.1 E DEdeg 8.9 Posflg D
Corr -0.1
Hipparcos
Catalog H HIP 85737 Proxy H RAhms 17 31 14.06
DEdms -73 09 45.1 Vmag 8.71 VarFlag R Vmag H
RAdeg 262.809 DEdeg -73.1625 AstroRef A Plx -0.71
CCDM 17312-7310 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 237 Rho 1.045 HD 157578 BD
CD CP CP-73 1838 Dm number -73 1838 VIred 1.26
SpType K3III R SpType Coord arcsec 2000 173114.06-730945.1
Hipparcos 2
HIP 85737 Sn 15 So 3 Nc 2
RArad 4.5868752926 DErad -1.2769272232 Plx -0.95 PmRA 2.91
PmDE 3.49 E RArad 0.73 E DErad 1.01 E Plx 1.29
E pmRA 0.82 E pmDE 1.2 Hpmag 8.8665 E Hpmag 0.0021
SHp 0.023 VA 0 BV 0 E BV 0
VI 0
CCDM
Ccdm 17312-7310 RComp Comp A Note1
Note2 Discov num DRAs 2.15 DDEs 14.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.3 Sp K5 PmNote *
PmRA 15 PmDE 0 Dm number -73 1838 Cat1 CPD
Name2 Cat2 HD 157578 M HD
ADS BDS M ADS BDS N IDS IDS 17188S7304A
HIC 85737
 
 
17312-7310 B
 
 
Coord arcsec 2000 173113.96-730945.9 Mag 10.74 PmRA 1.00 PmDE 1.0
Tycho2 9288-02110-2 Calc delta mag 1.68 Calc coord yes
Tycho2
Tycho2 9288-02110-2 Pflag P RAmdeg 262.80842000 DEmdeg -73.16257571
PmRA 1.1 PmDE 1.4 E RAmdeg 10 E DEmdeg 9
E pmRA 2.0 E pmDE 2.0 EpRAm 1991.20 EpDEm 1991.37
Num 6 Q RAmdeg 1.3 Q DEmdeg 0.7 Q pmRA 1.4
Q pmDE 0.6 BTmag 11.772 E BTmag 0.059 VTmag 10.738
E VTmag 0.043 Prox 10 TYC HIP 85737
CCDM B RAdeg 262.80776556 DEdeg -73.16270639 EpRA 1990 1.61
EpDE 1990 1.69 E RAdeg 33.6 E DEdeg 29.1 Posflg D
Corr -0.1
CCDM
Ccdm 17312-7310 RComp Comp B Note1
Note2 Discov num B 2047 DRAs DDEs
R dRAs Year 1935 Theta 242 Rho 1.0
Obs 1 Vmag 11.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17188S7304B
HIC 85737