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Doubles in session


Current system
20156+1526
HDS 2887 AB


Nearby doubles
2' : 20156+1527
BKO 546

7' : 20157+1520
CHE 248

8' : 20160+1521
CHE 253

9' : 20157+1534
BKO 547

10' : 20153+1535
CHE 242

11' : 20159+1535
CHE 252

11' : 20158+1536
BKO 551

12' : 20157+1537
CHE 247

13' : 20154+1538
CHE 243AB

13' : 20162+1535
CHE 256

13' : 20162+1534
CHE 257

14' : 20161+1537
CHE 255

16' : 20163+1538
CHE 261AB

17' : 20157+1509
BKO 548

18' : 20158+1510
BKO 552

18' : 20160+1510
BKO 555

18' : 20157+1508
CHE 249AB

18' : 20144+1533
CHE 229

20' : 20168+1523
CHE 267

22' : 20162+1507
CHE 258

22' : 20145+1541
CHE 231

22' : 20159+1505
BKO 553

22' : 20167+1513
CHE 265

23' : 20150+1504
CHE 240

24' : 20162+1504
CHE 259

24' : 20155+1502
SMA 114



Selections
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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.

20156+1526 HDS 2887 AB

 
 
20h 15m 33.68s +15° 26' 12.9" P.A. 244.00 sep 4.7 mag 8.85,13.18 Sp A0p... dist. 699.3 pc (2281.12 l.y.)
 
 
Coord 2000 20156+1526 Discov num HDS2887 Comp AB Coord arcsec 2000 20 15 33.68 +15 26 12.9
Date first 1991 Date last 1991 Obs 2
Pa first 244 Pa last 243.8 P.A. Now (θ) 243.8°
Sep first 4.7 Sep last 4.72 Sep. Now (ρ) 4.72"
Mag pri 8.85 Mag sec 13.18 delta mag (ΔM) 4.33 Spectral class A0p... (white)
Pri motion ra -001 Sec motion ra -001
Pri motion dec -011 Sec motion dec -011
Notes
Nature of this double is uncertain.
 
 
20156+1526 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 105902 20 15 34 +15 26 13 HDS 2887 AB 1991 2 244 4.7 8.85 13.18 4.33 <===
Show HD 192686 105902 20 15 34 +15 26 13 CHE 246 AC 2016 11 87 15.9 8.85 11.00 2.15
Show 105902 20 15 34 +15 26 13 CVP 1 AD 2016 8 340 39.7 8.85 12.75 3.90
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus SAO 105902 HIP 99857 Tycho2 1618-01698-1
Gaia DR2 1808316544571397760 HD 192686 BD BD+14 4240 Distance 699.3
Distance ly 2281.12
 
 
WDS 20156+1526 HDS 2887 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Che1908 Pa - Chevalier, Stanislas .
Che1908 Shanghai Obs. Zo-Se 4, 60, 1908 (corrections described in Bko2011c and Hrt2012b)
Che1909 Pa - Chevalier, Stanislas .
Che1909 Shanghai Obs. Zo-Se 5, 86, 1909 (corrections are described in Hrt2012b)
Che1910 Ma j Chevalier, Stanislas & Tsang Ziang-seng .
Che1910 +Pa Shanghai Obs. Zo-Se 6, O5, 1910 (corrections are described in Hrt2012b)
Che1911 Ma - Chevalier, Stanislas .
Che1911 +Pa Shanghai Obs. Zo-Se 7, B1, 1911 (corrections are described in Hrt2012b)
Che1925 Pa - Chevalier, Stanislas 1925JO......8...65G
Che1925 J. Obs. 8, 65, 1925
CvP2004 Ma u Cava, R.J. & Pascal, R.A., Jr. 2004DSO....10....3C
CvP2004 +Mb Double Star Observer 10, #3, 2004
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20156+1526 HDS2887 AB 1991 2 244 4.7 8.85 13.18 A0p... 201533.68+152612.9

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

 
 
WDS 20156+1526 HDS 2887 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20156+1526 HDS 2887 AB : MEASURES
 
 
No records found.

 
 
WDS 20156+1526 : VIRTUAL EYEPIECE
 
 

20156+1526 HDS2887A mag 8.85 Sp A0p... 20156+1526 HDS2887B sep 4.6 P.A. 243.00 mag 13.18 20156+1526 CHE 246C sep 15.4 P.A. 86.90 mag 11 20156+1526 CVP 1D sep 39.5 P.A. 340.80 mag 12.75 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 20156+1526 : ALADIN DSS IMAGE @ 20h 15m 33.68s +15° 26' 12.9"
 
 
 
 
WDS 20156+1526 HDS 2887 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20156+1526 HDS2887AB distance=0' 20156+1527 BKO 546 distance=2' 20157+1520 CHE 248 distance=7' 20160+1521 CHE 253 distance=8' 20157+1534 BKO 547 distance=9' 20153+1535 CHE 242 distance=10' 20159+1535 CHE 252 distance=11' 20158+1536 BKO 551 distance=11' 20157+1537 CHE 247 distance=12' 20154+1538 CHE 243AB distance=13' 20154+1538 CHE 243AC distance=13' 20162+1535 CHE 256 distance=13' 20162+1534 CHE 257 distance=13' 20161+1537 CHE 255 distance=14' 20163+1538 CHE 261AB distance=16' 20163+1538 CHE 261AC distance=16' 20157+1509 BKO 548 distance=17' 20158+1510 BKO 552 distance=18' 20160+1510 BKO 555 distance=18' 20157+1508 CHE 249AB distance=18' 20157+1508 BKO 549AC distance=18' 20144+1533 CHE 229 distance=18' 20168+1523 CHE 267 distance=20' 20162+1507 CHE 258 distance=22' 20145+1541 CHE 231 distance=22' 20159+1505 BKO 553 distance=22' 20167+1513 CHE 265 distance=22' 20150+1504 CHE 240 distance=23' 20162+1504 CHE 259 distance=24' 20155+1502 SMA 114 distance=24' 20171+1536 CHE 272 distance=24' 20139+1529 CHE 220 distance=25' 20170+1538 CHE 269 distance=25' 20168+1543 CHE 266 distance=25' 20143+1507 CHE 225AB distance=27' 20143+1507 BKO 539AC distance=27' 20151+1552 BKO 543 distance=27' 20142+1508 BKO 538 distance=27' 20172+1515 CHE 274AB distance=27' 20172+1515 DAM 360AC distance=27' 20161+1552 BKO 557 distance=28' 20144+1505 BKO 541 distance=28' 20145+1502 TOB 309 distance=28' 20145+1503 CHE 232 distance=28' 20174+1522 CHE 276 distance=28' 20161+1553 CHE 254AB distance=28' 20161+1553 BKO 556AC distance=28' 20146+1503 CHE 234 distance=29' 20164+1500 CHE 262 distance=29' 20154+1457 CHE 244 distance=29' 20169+1506 CHE 268AB distance=29' 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 20156+1526 HDS2887 AB 244 4.7
Show 20156+1526 CHE 246 AC 87 15.9
Show 20156+1526 CVP 1 AD 340 39.7
Show 20156+1527 BKO 546 106 7.1 2
Show 20157+1520 CHE 248 322 32.0 7
Show 20160+1521 CHE 253 324 14.4 8
Show 20157+1534 BKO 547 91 4.4 9
Show 20153+1535 CHE 242 358 13.8 10
Show 20159+1535 CHE 252 304 37.5 11
Show 20158+1536 BKO 551 62 4.9 11
Show 20157+1537 CHE 247 4.6 12
Show 20154+1538 CHE 243 AB 222 24.0 13
Show 20154+1538 CHE 243 AC 205 26.6 13
Show 20162+1535 CHE 256 48 27.3 13
Show 20162+1534 CHE 257 38 29.0 13
Show 20161+1537 CHE 255 216 24.6 14
Show 20163+1538 CHE 261 AB 41 18.3 16
Show 20163+1538 CHE 261 AC 111 23.8 16
Show 20157+1509 BKO 548 65 2.7 17
Show 20158+1510 BKO 552 64 3.6 18
Show 20160+1510 BKO 555 202 4.6 18
Show 20157+1508 CHE 249 AB 349 22.6 18
Show 20157+1508 BKO 549 AC 111 4.8 18
Show 20144+1533 CHE 229 262 17.5 18
Show 20168+1523 CHE 267 18 36.5 20
Show 20162+1507 CHE 258 230 16.0 22
Show 20145+1541 CHE 231 266 14.6 22
Show 20159+1505 BKO 553 111 5.2 22
Show 20167+1513 CHE 265 68 20.8 22
Show 20150+1504 CHE 240 179 28.4 23
Show 20162+1504 CHE 259 138 16.5 24
Show 20155+1502 SMA 114 310 5.0 24
Show 20171+1536 CHE 272 104 17.4 24
Show 20139+1529 CHE 220 42 37.3 25
Show 20170+1538 CHE 269 285 26.9 25
Show 20168+1543 CHE 266 51 36.5 25
Show 20143+1507 CHE 225 AB 212 7.6 27
Show 20143+1507 BKO 539 AC 276 4.5 27
Show 20151+1552 BKO 543 325 6.4 27
Show 20142+1508 BKO 538 127 6.2 27
Show 20172+1515 CHE 274 AB 148 27.5 27
Show 20172+1515 DAM 360 AC 21 5.9 27
Show 20161+1552 BKO 557 347 5.6 28
Show 20144+1505 BKO 541 136 5.9 28
Show 20145+1502 TOB 309 182 11.6 28
Show 20145+1503 CHE 232 333 9.5 28
Show 20174+1522 CHE 276 261 18.0 28
Show 20161+1553 CHE 254 AB 133 26.6 28
Show 20161+1553 BKO 556 AC 313 10.2 28
Show 20146+1503 CHE 234 270 18.4 29
Show 20164+1500 CHE 262 245 19.7 29

 
 
WDS 20156+1526 : COMPONENTS
 
 
  A B C
B pa=243.0°
sep=4.58"
 
C pa=86.9°
sep=15.36"
pa=81.5°
sep=19.63"
 
D pa=340.8°
sep=39.55"
pa=347.2°
sep=40.43"
pa=322.2°
sep=46.23"
 
 
20156+1526 A
 
 
Coord arcsec 2000 201533.68+152612.9 Mag 8.85 Spectral class A0p... (white) PmRA -1.00
PmDE -11.0 SAO 105902 HIP 99857 Tycho2 1618-01698-1
HD 192686 BD BD+14 4240
Tycho2
Tycho2 1618-01698-1 Pflag RAmdeg 303.89033646 DEmdeg 15.43688384
PmRA -0.9 PmDE -11.2 E RAmdeg 7 E DEmdeg 8
E pmRA 1.1 E pmDE 1.0 EpRAm 1990.85 EpDEm 1990.31
Num 11 Q RAmdeg 1.3 Q DEmdeg 1.0 Q pmRA 1.3
Q pmDE 1.1 BTmag 8.800 E BTmag 0.018 VTmag 8.848
E VTmag 0.016 Prox 47 TYC T HIP 99857
CCDM A RAdeg 303.89033833 DEdeg 15.43691000 EpRA 1990 1.54
EpDE 1990 1.41 E RAdeg 7.2 E DEdeg 7.9 Posflg
Corr -0.1
SAO
SAO 105902 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 -0.012 Vmag 8.7 SpType A2
Double code Source 29 CatNum 7812 DM BD+14 4240
DMcomp BDsup HD 192686 M HD 0
GC RA1950rad 5.29381686 DE1950rad 0.26673721 PmRA2000 0.0002
PmDE2000 -0.014
Hipparcos
Catalog H HIP 99857 Proxy H RAhms 20 15 33.68
DEdms +15 26 12.9 Vmag 8.83 VarFlag R Vmag G
RAdeg 303.89 DEdeg 15.4369 AstroRef A Plx -1.58
CCDM 20156+1526 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual D M HIP AB
Theta 244 Rho 4.738 HD 192686 BD BD+14 4240
CD CP Dm number +14 4240 VIred -0.01
SpType A0p... R SpType Coord arcsec 2000 201533.68+152612.9
Hipparcos 2
HIP 99857 Sn 15 So 3 Nc 2
RArad 5.3038870031 DErad 0.2694250067 Plx -1.43 PmRA 1.59
PmDE -11.25 E RArad 0.89 E DErad 0.82 E Plx 1.18
E pmRA 1.1 E pmDE 1.11 Hpmag 8.8149 E Hpmag 0.0025
SHp 0.019 VA 0 BV -0.036 E BV 0.014
VI -0.01
CCDM
Ccdm 20156+1526 RComp Comp A Note1
Note2 Discov num DRAs -2.32 DDEs 12.8
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.8 Sp A0 PmNote *
PmRA -1 PmDE -11 Dm number +14 4240 Cat1 BD
Name2 +15 2179 Cat2 AGK2/3 HD 192686 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 99857
 
 
20156+1526 B
 
 
Coord arcsec 2000 201533.40+152610.8 Mag 13.18 PmRA -1.00 PmDE -11.0
Calc delta mag 4.33 Calc coord yes
CCDM
Ccdm 20156+1526 RComp Comp B Note1
Note2 Discov num HDS DRAs -2.61 DDEs 10.7
R dRAs 82 Year 1991 Theta 244 Rho 4.7
Obs 1 Vmag 13.2 Sp PmNote *
PmRA -1 PmDE -11 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 99857
 
 
20156+1526 C
 
 
Coord arcsec 2000 201534.74+152613.7 Mag 11 PmRA -14.00 PmDE 10.0
Calc delta mag 2.15 Calc coord yes
 
 
20156+1526 D
 
 
Coord arcsec 2000 201532.78+152650.2 Mag 12.75 PmRA 0.00 PmDE 2.0
Calc delta mag 3.9 Calc coord yes