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Doubles in session


Current system
20126+0052
STF 2644
HD 191984


Nearby doubles
15' : 20133-0041
BAL 920

17' : 20120-0031
J 548

18' : 20122-0035
DAM 201

20' : 20113-0049
BU 1540AB

20' : 20121-0034
DAM 200

28' : 20106+0057
J 2700AB

32' : 20106+0102
DAM 197

37' : 20147+0109
J 2571

37' : 20102+0043
GRV 317

39' : 20134+0128
AG 248AB

40' : 20114+0127
BAL1546

43' : 20154+0042
HWE 100AB

44' : 20119+0010
UC 4118

47' : 20115+0135
BAL1547

49' : 20113-0008
S 735

49' : 20120+0004
GWP2927

51' : 20143+0009
HDS2885

51' : 20154-0025
KPP2773

55' : 20089-0047
UC 4103

56' : 20117+0146
HJ 906AB

60' : 20096+0132
TDT2036

64' : 20083+0052
BAL1213

65' : 20090+0127
BAL1544

66' : 20168+0111
HDS2890

67' : 20103+0149
BAL1545

70' : 20080-0041
SHY 325



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.

20126+0052 STF 2644 (HD 191984)

 
 
20h 12m 35.09s +00° 52' 00.2" P.A. 205.00 sep 2.6 mag 6.92,7.06 Sp B9p dist. 180.51 pc (588.82 l.y.)
 
 
Coord 2000 20126+0052 Discov num STF2644 Comp Coord arcsec 2000 20 12 35.09 +00 52 00.2
Date first 1783 Date last 2019 Obs 183
Pa first 214 Pa last 204.9 P.A. Now (θ) 204.9°
Sep first 3.0 Sep last 2.612 Sep. Now (ρ) 2.612"
Mag pri 6.92 Mag sec 7.06 delta mag (ΔM) 0.14 Spectral class B9p (blue-white)
Pri motion ra +008 Sec motion ra +008
Pri motion dec -030 Sec motion dec -030
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 191984 Constellation Aquila SAO 125567 HIP 99585
Tycho2 0495-01188-1 Gaia DR2 4242685762916640128 HD 191984 HR 7717
GC 28051 ADS 13506 BD BD+00 4444 Distance 180.51
Distance ly 588.82
 
 
WDS 20126+0052 STF 2644 (HD 191984) : NOTES
 
 
discov_num notes refcode
STF2644 H 2 96. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20126+0052 STF2644 2007 205 206 2.6 6.92 7.06 B9p D 201235.09+005200.2
20126+0052 STF2644 2008 208 206 2.6 6.92 7.06 B9p D 201235.09+005200.2
20126+0052 STF2644 2011 210 206 2.5 6.92 7.06 B9p N D 201235.09+005200.2
20126+0052 STF2644 2012 210 205 2.5 6.92 7.06 B9p N D 201235.09+005200.2
20126+0052 STF2644 2015 175 206 2.6 6.92 7.06 B9p N 201235.09+005200.2
20126+0052 STF2644 2016 176 206 2.6 6.92 7.06 B9p N 201235.09+005200.2
20126+0052 STF2644 2017 177 207 2.6 6.92 7.06 B9p N 201235.09+005200.2
20126+0052 STF2644 2018 179 206 2.6 6.92 7.06 B9p N 201235.09+005200.2
20126+0052 STF2644 2019 182 206 2.6 6.92 7.06 B9p N 201235.09+005200.2

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

 
 
WDS 20126+0052 STF 2644 (HD 191984) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20126+0052 STF 2644 (HD 191984) : MEASURES
 
 
No records found.

 
 
WDS 20126+0052 (HD 191984) : VIRTUAL EYEPIECE
 
 

20126+0052 STF2644A mag 6.92 Sp B9p 20126+0052 STF2644B sep 2.6 P.A. 204.90 mag 7.06 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 20126+0052 (HD 191984) : ALADIN DSS IMAGE @ 20h 12m 35.09s +00° 52' 00.2"
 
 
 
 
WDS 20126+0052 STF 2644 (HD 191984) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20126+0052 STF2644 distance=0' 20133-0041 BAL 920 distance=15' 20120-0031 J 548 distance=17' 20122-0035 DAM 201 distance=18' 20113-0049 MKT 10Aa,Ab distance=20' 20113-0049 ISO 12Aa,Ac distance=20' 20113-0049 BU 1540AB distance=20' 20121-0034 DAM 200 distance=20' 20140-0052 ABT 15AE (Phoenicia) distance=22' 20140-0052 BU 1485A,BC (Phoenicia) distance=22' 20140-0052 JNN 246AF (Phoenicia) distance=22' 20140-0052 J 551BC distance=23' 20140-0052 BU 1485BC,D distance=23' 20106+0057 J 2700AB distance=28' 20106+0057 DAM 196AC distance=28' 20106+0102 DAM 197 distance=32' 20147+0109 J 2571 distance=37' 20102+0043 GRV 317 distance=37' 20134+0128 AG 248AB distance=39' 20114+0127 BAL1546 distance=40' 20154+0042 HWE 100AB distance=43' 20154+0042 HWE 100AC distance=43' 20119+0010 UC 4118 distance=44' 20115+0135 BAL1547 distance=47' 20113-0008 S 735 distance=49' 20120+0004 GWP2927 distance=49' 20143+0009 HDS2885 distance=51' 20154-0025 KPP2773 distance=51' 20089-0047 UC 4103 distance=55' 20117+0146 HJ 906AB distance=56' 20117+0146 HJ 906AC distance=56' 20117+0146 ABH 132AD distance=56' 20117+0146 ABH 132AE distance=56' 20117+0146 ABH 132AF distance=56' 20117+0146 ABH 132AG distance=56' 20117+0146 ABH 132AH distance=56' 20096+0132 TDT2036 distance=60' 20083+0052 BAL1213 distance=64' 20090+0127 BAL1544 distance=65' 20168+0111 HDS2890 distance=66' 20103+0149 BAL1545 distance=67' 20080-0041 SHY 325 distance=70' 20171+0038 J 2701 distance=71' 20134+0201 BAL1549 distance=71' 20152+0155 BAL1552 distance=75' 20075+0057 UC 4090 distance=76' 20075-0037 H 4 34 distance=77' 20078+0021 BAL1212 distance=79' 20102+0204 HJ 2933 distance=81' 20179+0040 BAL1214 distance=81' 20174+0129 A 2279 distance=82' 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 20126+0052 STF2644 205 2.6
Show 20133-0041 BAL 920 269 16.6 15
Show 20120-0031 J 548 139 4.1 17
Show 20122-0035 DAM 201 358 6.9 18
Show 20113-0049 MKT 10 Aa,Ab 88 0.0 20
Show 20113-0049 ISO 12 Aa,Ac 44 1.0 20
Show 20113-0049 BU 1540 AB 259 115.8 20
Show 20121-0034 DAM 200 211 4.2 20
Show Phoenicia 20140-0052 ABT 15 AE 225 81.0 22
Show Phoenicia 20140-0052 BU 1485 A,BC 105 75.0 22
Show Phoenicia 20140-0052 JNN 246 AF 217 7.3 22
Show 20140-0052 J 551 BC 265 0.2 23
Show 20140-0052 BU 1485 BC,D 65 23.2 23
Show 20106+0057 J 2700 AB 179 6.1 28
Show 20106+0057 DAM 196 AC 73 7.5 28
Show 20106+0102 DAM 197 164 4.9 32
Show 20147+0109 J 2571 102 3.9 37
Show 20102+0043 GRV 317 46 45.1 37
Show 20134+0128 AG 248 AB 11 3.4 39
Show 20114+0127 BAL1546 95 17.5 40
Show 20154+0042 HWE 100 AB 253 1.7 43
Show 20154+0042 HWE 100 AC 271 31.3 43
Show 20119+0010 UC 4118 28 58.2 44
Show 20115+0135 BAL1547 46 5.8 47
Show 20113-0008 S 735 211 56.4 49
Show 20120+0004 GWP2927 150 9.8 49
Show 20143+0009 HDS2885 132 0.2 51
Show 20154-0025 KPP2773 139 2.0 51
Show 20089-0047 UC 4103 119 6.7 55
Show 20117+0146 HJ 906 AB 156 13.3 56
Show 20117+0146 HJ 906 AC 348 34.7 56
Show 20117+0146 ABH 132 AD 142 60.1 56
Show 20117+0146 ABH 132 AE 132 78.8 56
Show 20117+0146 ABH 132 AF 40 86.7 56
Show 20117+0146 ABH 132 AG 32 62.0 56
Show 20117+0146 ABH 132 AH 235 57.4 56
Show 20096+0132 TDT2036 76 0.5 60
Show 20083+0052 BAL1213 330 5.5 64
Show 20090+0127 BAL1544 143 6.6 65
Show 20168+0111 HDS2890 313 0.1 66
Show 20103+0149 BAL1545 345 15.3 67
Show 20080-0041 SHY 325 228 999.9 70
Show 20171+0038 J 2701 73 4.0 71
Show 20134+0201 BAL1549 228 17.1 71
Show 20152+0155 BAL1552 243 4.9 75
Show 20075+0057 UC 4090 233 21.3 76
Show 20075-0037 H 4 34 198 49.7 77
Show 20078+0021 BAL1212 114 12.3 79
Show 20102+0204 HJ 2933 26 21.7 81
Show 20179+0040 BAL1214 100 3.4 81
Show 20174+0129 A 2279 301 4.5 82

 
 
WDS 20126+0052 : COMPONENTS
 
 
  A
B pa=204.9°
sep=2.61"
 
 
20126+0052 A
 
 
Componente originario normalizzato AB Name HD 191984 Coord arcsec 2000 201235.09+005200.2 Mag 6.92
Spectral class B9p (blue-white) PmRA 8.00 PmDE -30.0 SAO 125567
HIP 99585 Tycho2 0495-01188-1 HD 191984 HR 7717
GC 28051 BD BD+00 4444
Tycho2
Tycho2 0495-01188-1 Pflag P RAmdeg 303.14621833 DEmdeg 0.86672666
PmRA 7.8 PmDE -30.3 E RAmdeg 4 E DEmdeg 5
E pmRA 1.6 E pmDE 1.5 EpRAm 1991.54 EpDEm 1991.11
Num 3 Q RAmdeg 1.8 Q DEmdeg 2.0 Q pmRA 1.8
Q pmDE 2.1 BTmag 6.972 E BTmag 0.015 VTmag 6.918
E VTmag 0.011 Prox 27 TYC HIP 99585
CCDM A RAdeg 303.14635111 DEdeg 0.86710194 EpRA 1990 1.61
EpDE 1990 1.23 E RAdeg 4.0 E DEdeg 4.8 Posflg D
Corr -0.5
SAO
SAO 125567 DelFlag RA1950 PmRA1950 0.0005
DE1950 PmDE1950 -0.011 Vmag 6.8 SpType A0
Double code Source 70 CatNum 28051 DM BD+00 4444
DMcomp A BDsup HD 191984 M HD 1
GC 28051 RA1950rad 5.27977584 DE1950rad 0.01250781 PmRA2000 0.0007
PmDE2000 -0.014
Hipparcos
Catalog H HIP 99585 Proxy H RAhms 20 12 35.12
DEdms +00 52 01.6 Vmag 6.25 VarFlag R Vmag G
RAdeg 303.146 DEdeg 0.867102 AstroRef A Plx 5.41
CCDM 20126+0052 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 207 Rho 2.734 HD 191984 BD BD+00 4444
CD CP Dm number +00 4444 VIred 0.06
SpType A0 R SpType Coord arcsec 2000 201235.12+005201.6
Hipparcos 2
HIP 99585 Sn 15 So 3 Nc 2
RArad 5.2909018592 DErad 0.0151337928 Plx 5.54 PmRA 2.12
PmDE -20.85 E RArad 1.03 E DErad 0.55 E Plx 1.1
E pmRA 1.48 E pmDE 0.87 Hpmag 6.2593 E Hpmag 0.0006
SHp 0.008 VA 0 BV 0.042 E BV 0.003
VI 0.06
CCDM
Ccdm 20126+0052 RComp Comp A Note1
Note2 Discov num DRAs -0.91 DDEs -0.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.8 Sp A0 PmNote *
PmRA 9 PmDE -29 Dm number +00 4444 Cat1 BD
Name2 +00 2474 Cat2 AGK2/3 HD 191984 M HD
ADS BDS A13506 M ADS BDS N IDS IDS 20075N0034A
HIC 99585
 
 
20126+0052 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 201235.02+005157.8 Mag 7.06 PmRA 8.00
PmDE -30.0 HIP 99585 Tycho2 0495-01188-2 Calc delta mag 0.14
Calc coord yes
Tycho2
Tycho2 0495-01188-2 Pflag P RAmdeg 303.14621833 DEmdeg 0.86672666
PmRA 7.8 PmDE -30.3 E RAmdeg 4 E DEmdeg 5
E pmRA 1.6 E pmDE 1.5 EpRAm 1991.54 EpDEm 1991.11
Num 3 Q RAmdeg 1.8 Q DEmdeg 2.0 Q pmRA 1.8
Q pmDE 2.1 BTmag 7.104 E BTmag 0.016 VTmag 7.059
E VTmag 0.011 Prox 27 TYC HIP 99585
CCDM B RAdeg 303.14601028 DEdeg 0.86642250 EpRA 1990 1.58
EpDE 1990 1.24 E RAdeg 4.2 E DEdeg 4.9 Posflg D
Corr -0.4
Hipparcos
Catalog H HIP 99585 Proxy H RAhms 20 12 35.12
DEdms +00 52 01.6 Vmag 6.25 VarFlag R Vmag G
RAdeg 303.146 DEdeg 0.867102 AstroRef A Plx 5.41
CCDM 20126+0052 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 207 Rho 2.734 HD 191984 BD BD+00 4444
CD CP Dm number +00 4444 VIred 0.06
SpType A0 R SpType Coord arcsec 2000 201235.12+005201.6
Hipparcos 2
HIP 99585 Sn 15 So 3 Nc 2
RArad 5.2909018592 DErad 0.0151337928 Plx 5.54 PmRA 2.12
PmDE -20.85 E RArad 1.03 E DErad 0.55 E Plx 1.1
E pmRA 1.48 E pmDE 0.87 Hpmag 6.2593 E Hpmag 0.0006
SHp 0.008 VA 0 BV 0.042 E BV 0.003
VI 0.06
CCDM
Ccdm 20126+0052 RComp Comp B Note1
Note2 Discov num STF2644 DRAs DDEs
R dRAs Year 1830 Theta 208 Rho 3.0
Obs 99 Vmag 7.1 Sp PmNote
PmRA -1 PmDE -10 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13506 M ADS BDS N IDS IDS 20075N0034B
HIC 99585