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Doubles in session


Current system
20172+1553
CHE 273 AB


Nearby doubles
9' : 20171+1601
CHE 271

11' : 20179+1553
CHE 283

11' : 20168+1543
CHE 266

11' : 20171+1604
CHE 270

13' : 20165+1601
BKO 559

14' : 20181+1555
J 553

14' : 20181+1552
CHE 289

15' : 20166+1603
CHE 264

15' : 20165+1602
BKO 558

15' : 20170+1538
CHE 269

15' : 20180+1544
CHE 284

15' : 20161+1553
CHE 254AB

16' : 20161+1552
BKO 557

16' : 20180+1543
CHE 285

16' : 20177+1539
CHE 278

17' : 20166+1606
CHE 263

17' : 20183+1556
CHE 292

18' : 20171+1536
CHE 272

19' : 20181+1605
BKO 561

19' : 20182+1604
CHE 291

20' : 20163+1538
CHE 261AB

22' : 20186+1548
CHE 295

22' : 20183+1539
CHE 293

22' : 20161+1537
CHE 255

23' : 20162+1534
CHE 257

23' : 20186+1600
BPM2102



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

20172+1553 CHE 273 AB

 
 
20h 17m 09.78s +15° 52' 21.8" P.A. 94.00 sep 26.8 mag 7.48,13.40 Sp B9 dist. 287.36 pc (937.37 l.y.)
 
 
Coord 2000 20172+1553 Discov num CHE 273 Comp AB Coord arcsec 2000 20 17 09.78 +15 52 21.8
Date first 1910 Date last 2015 Obs 7
Pa first 86 Pa last 94.4 P.A. Now (θ) 94.4°
Sep first 28.0 Sep last 26.781 Sep. Now (ρ) 26.781"
Mag pri 7.48 Mag sec 13.40 delta mag (ΔM) 5.92 Spectral class B9 (blue-white)
Pri motion ra -007 Sec motion ra -001
Pri motion dec -011 Sec motion dec -053
Notes N (See Notes)
rPM=0.8
Nature of this double is uncertain.
 
 
20172+1553 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 105926 20 17 10 +15 52 22 CHE 273 AB 2015 7 94 26.8 7.48 13.40 5.92 <===
Show 20 17 12 +15 52 20 BKO 560 BC 2008 1 199 1.4 13.40 15.40 2.00
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus SAO 105926 HIP 99995 Tycho2 1631-00005-1
Gaia DR2 1808447386454770304 HD 192954 GC 28188 BD BD+15 4120
Distance 287.36 Distance ly 937.37
 
 
WDS 20172+1553 CHE 273 AB : NOTES
 
 
discov_num notes refcode
BKO 560 Anon. 73. Bko2009d
 
 
REFERENCES
 
 
refcode metd author reference
Bko2009d C u Berko, E. 2009JDSO....5..189B
Bko2009d JDSO 5, 189, 2009
 
 
DISCOVERER
 
 
idgroup discov author
1 CHE Chevalier, Stanislas
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20172+1553 CHE 273 AB 2008 5 94 27.2 7.48 13.40 D 201709.78+155221.8
20172+1553 CHE 273 AB 2015 7 94 26.8 7.48 13.40 B9 N 201709.78+155221.8

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

 
 
WDS 20172+1553 CHE 273 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20172+1553 CHE 273 AB : MEASURES
 
 
No records found.

 
 
WDS 20172+1553 : VIRTUAL EYEPIECE
 
 

20172+1553 CHE 273A mag 7.48 Sp B9 20172+1553 BKO 560B sep 26.8 P.A. 94.30 mag 13.4 20172+1553 BKO 560C sep 26.5 P.A. 97.30 mag 15.4 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20172+1553 : ALADIN DSS IMAGE @ 20h 17m 09.78s +15° 52' 21.8"
 
 
 
 
WDS 20172+1553 CHE 273 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20172+1553 CHE 273AB distance=0' 20172+1553 BKO 560BC distance=1' 20171+1601 CHE 271 distance=9' 20179+1553 CHE 283 distance=11' 20168+1543 CHE 266 distance=11' 20171+1604 CHE 270 distance=11' 20165+1601 BKO 559 distance=13' 20181+1555 J 553 distance=14' 20181+1552 CHE 289 distance=14' 20166+1603 CHE 264 distance=15' 20165+1602 BKO 558 distance=15' 20170+1538 CHE 269 distance=15' 20180+1544 CHE 284 distance=15' 20161+1553 CHE 254AB distance=15' 20161+1553 BKO 556AC distance=15' 20161+1552 BKO 557 distance=16' 20180+1543 CHE 285 distance=16' 20177+1539 CHE 278 distance=16' 20166+1606 CHE 263 distance=17' 20183+1556 CHE 292 distance=17' 20171+1536 CHE 272 distance=18' 20181+1605 BKO 561 distance=19' 20182+1604 CHE 291 distance=19' 20163+1538 CHE 261AB distance=20' 20163+1538 CHE 261AC distance=20' 20186+1548 CHE 295 distance=22' 20183+1539 CHE 293 distance=22' 20161+1537 CHE 255 distance=22' 20162+1534 CHE 257 distance=23' 20186+1600 BPM2102 distance=23' 20162+1535 CHE 256 distance=23' 20187+1551 CHE 298BC distance=23' 20187+1551 CHE 297AB distance=23' 20187+1551 CHE 298AC distance=23' 20178+1530 CHE 280 distance=25' 20158+1536 BKO 551 distance=26' 20159+1535 CHE 252 distance=26' 20189+1546 CHE 301 distance=27' 20157+1537 CHE 247 distance=27' 20163+1615 CHE 260 distance=27' 20157+1534 BKO 547 distance=28' 20190+1540 BPM2103 distance=29' 20151+1552 BKO 543 distance=30' 20154+1538 CHE 243AB distance=30' 20154+1538 CHE 243AC distance=30' 20180+1526 CHE 286 distance=30' 20151+1555 CHE 241 distance=30' 20168+1523 CHE 267 distance=31' 20174+1522 CHE 276 distance=31' 20153+1535 CHE 242 distance=32' 20188+1530 TOB 319AB distance=33' 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 20172+1553 CHE 273 AB 94 26.8
Show 20172+1553 BKO 560 BC 199 1.4 1
Show 20171+1601 CHE 271 34 26.3 9
Show 20179+1553 CHE 283 80 24.5 11
Show 20168+1543 CHE 266 51 36.5 11
Show 20171+1604 CHE 270 103 16.1 11
Show 20165+1601 BKO 559 36 4.8 13
Show 20181+1555 J 553 20 3.7 14
Show 20181+1552 CHE 289 39 32.5 14
Show 20166+1603 CHE 264 35 28.3 15
Show 20165+1602 BKO 558 137 6.2 15
Show 20170+1538 CHE 269 285 26.9 15
Show 20180+1544 CHE 284 339 30.4 15
Show 20161+1553 CHE 254 AB 133 26.6 15
Show 20161+1553 BKO 556 AC 313 10.2 15
Show 20161+1552 BKO 557 347 5.6 16
Show 20180+1543 CHE 285 17 7.1 16
Show 20177+1539 CHE 278 89 10.5 16
Show 20166+1606 CHE 263 140 4.0 17
Show 20183+1556 CHE 292 181 15.7 17
Show 20171+1536 CHE 272 104 17.4 18
Show 20181+1605 BKO 561 91 5.8 19
Show 20182+1604 CHE 291 275 8.3 19
Show 20163+1538 CHE 261 AB 41 18.3 20
Show 20163+1538 CHE 261 AC 111 23.8 20
Show 20186+1548 CHE 295 260 13.6 22
Show 20183+1539 CHE 293 354 24.8 22
Show 20161+1537 CHE 255 216 24.6 22
Show 20162+1534 CHE 257 38 29.0 23
Show 20186+1600 BPM2102 47 72.1 23
Show 20162+1535 CHE 256 48 27.3 23
Show 20187+1551 CHE 298 BC 213 27.0 23
Show 20187+1551 CHE 297 AB 6 35.1 23
Show 20187+1551 CHE 298 AC 318 16.9 23
Show 20178+1530 CHE 280 230 27.7 25
Show 20158+1536 BKO 551 62 4.9 26
Show 20159+1535 CHE 252 304 37.5 26
Show 20189+1546 CHE 301 296 28.1 27
Show 20157+1537 CHE 247 4.6 27
Show 20163+1615 CHE 260 201 27.4 27
Show 20157+1534 BKO 547 91 4.4 28
Show 20190+1540 BPM2103 173 15.0 29
Show 20151+1552 BKO 543 325 6.4 30
Show 20154+1538 CHE 243 AB 222 24.0 30
Show 20154+1538 CHE 243 AC 205 26.6 30
Show 20180+1526 CHE 286 92 25.9 30
Show 20151+1555 CHE 241 49 21.3 30
Show 20168+1523 CHE 267 18 36.5 31
Show 20174+1522 CHE 276 261 18.0 31
Show 20153+1535 CHE 242 358 13.8 32
Show 20188+1530 TOB 319 AB 65 14.9 33

 
 
WDS 20172+1553 : COMPONENTS
 
 
  A B
B pa=94.3°
sep=26.77"
 
C pa=97.3°
sep=26.46"
pa=198.0°
sep=1.43"
 
 
20172+1553 A
 
 
Coord arcsec 2000 201709.78+155221.8 Mag 7.48 Spectral class B9 (blue-white) PmRA -7.00
PmDE -11.0 SAO 105926 HIP 99995 Tycho2 1631-00005-1
HD 192954 GC 28188 BD BD+15 4120
Tycho2
Tycho2 1631-00005-1 Pflag RAmdeg 304.29072996 DEmdeg 15.87266959
PmRA -5.9 PmDE -10.1 E RAmdeg 5 E DEmdeg 5
E pmRA 0.9 E pmDE 1.0 EpRAm 1990.95 EpDEm 1990.95
Num 19 Q RAmdeg 0.6 Q DEmdeg 0.6 Q pmRA 0.6
Q pmDE 0.6 BTmag 7.365 E BTmag 0.015 VTmag 7.476
E VTmag 0.011 Prox 999 TYC T HIP 99995
CCDM RAdeg 304.29074444 DEdeg 15.87269306 EpRA 1990 1.59
EpDE 1990 1.50 E RAdeg 4.6 E DEdeg 4.6 Posflg
Corr -0.1
SAO
SAO 105926 DelFlag RA1950 PmRA1950 -0.0007
DE1950 PmDE1950 -0.011 Vmag 7.3 SpType B9
Double code Source 70 CatNum 28188 DM BD+15 4120
DMcomp BDsup HD 192954 M HD 0
GC 28188 RA1950rad 5.30083027 DE1950rad 0.27431515 PmRA2000 -0.0006
PmDE2000 -0.013
Hipparcos
Catalog H HIP 99995 Proxy RAhms 20 17 09.78
DEdms +15 52 21.7 Vmag 7.48 VarFlag 2 R Vmag H
RAdeg 304.291 DEdeg 15.8727 AstroRef Plx 2.76
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 192954 BD BD+15 4120
CD CP Dm number +15 4120 VIred -0.07
SpType B9 R SpType Coord arcsec 2000 201709.78+155221.7
Hipparcos 2
HIP 99995 Sn 5 So 0 Nc 1
RArad 5.3108754083 DErad 0.2770307944 Plx 3.48 PmRA -4.09
PmDE -10.35 E RArad 0.46 E DErad 0.48 E Plx 0.66
E pmRA 0.68 E pmDE 0.66 Hpmag 7.4522 E Hpmag 0.0026
SHp 0.077 VA 2 BV -0.089 E BV 0.011
VI -0.07
 
 
20172+1553 B
 
 
Coord arcsec 2000 201711.63+155219.8 Coord calc 201711.63+155219.8 Mag 13.4 PmRA -1.00
PmDE -53.0 Calc delta mag 5.92
 
 
20172+1553 C
 
 
Coord arcsec 2000 201711.60+155218.4 Mag 15.4 Calc delta mag 7.92 Calc coord yes