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Current system
18384-0312
A 88 AB,C


Nearby doubles
19' : 18379-0254
KPP1345

36' : 18383-0236
BRT3333

37' : 18394-0239
BRT1948

38' : 18386-0235
WAM 4

40' : 18381-0233
TVB 304

40' : 18372-0236
BAL 248

49' : 18397-0358
BRT 482

54' : 18349-0317
HJ 863

57' : 18348-0256
RST4589

63' : 18416-0353
RST4593

67' : 18385-0418
HJ 5499

73' : 18422-0357
J 2521AB

83' : 18334-0346
GWP2783

87' : 18441-0313
J 528

90' : 18335-0220
GWP2784AB

92' : 18388-0443
BRT 481

97' : 18388-0136
BAL 581

101' : 18437-0413
SKF 405

104' : 18381-0455
RST4592

106' : 18454-0314
A 90

110' : 18442-0208
BRT 484

111' : 18316-0353
A 87AB

115' : 18335-0144
RST5118

121' : 18366-0114
CON 35AB

126' : 18395-0107
GWP2791

131' : 18334-0458
BST 1AB



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18384-0312 A 88 AB,C

 
 
18h 38m 23.80s -03° 11' 37.4" P.A. 115.00 sep 18.5 mag 5.87,14.00 Sp F9V dist. 47.96 pc (156.45 l.y.)
 
 
Coord 2000 18384-0312 Discov num A    88 Comp AB,C Coord arcsec 2000 18 38 23.80 -03 11 37.4
Date first 1909 Date last 1998 Obs 6
Pa first 114 Pa last 115.2 P.A. Now (θ) 115.2°
Sep first 15.5 Sep last 18.46 Sep. Now (ρ) 18.46"
Mag pri 5.87 Mag sec 14.00 delta mag (ΔM) 8.13 Spectral class F9V (yellow-white)
Pri motion ra +007 Sec motion ra
Pri motion dec +037 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
18384-0312 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 142461 18 38 24 -03 11 37 A 88 AB 2020 170 13 0.1 7.22 7.51 0.29 Y
Show 142461 18 38 24 -03 11 37 A 88 AB,C 1998 6 115 18.5 5.87 14.00 8.13 <===
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Serpens SAO 142461 HIP 91394 Tycho2 5117-02162-1
Gaia DR2 4259305018664587648 HD 172088 HR 6999 ADS 11520
BD BD-03 4331 Distance 47.96 Distance ly 156.45
 
 
WDS 18384-0312 A 88 AB,C : NOTES
 
 
discov_num notes refcode
A 88 AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 2.42 +/- 0.32, 2.50, and 1.07 Msun, respectively. Mlk2012
A 4432-d spectroscopic orbit has been determined for this pair. Grf2013e
 
 
REFERENCES
 
 
refcode metd author reference
Grf2013e not - Griffin, R.F. 2013Obs...133..269G
Grf2013e Observatory 133, 269, 2013
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18384-0312 A 88 AB,C 1998 6 115 18.5 5.87 14.00 F9V N D 183823.80-031137.4

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

 
 
WDS 18384-0312 A 88 AB,C : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18384-0312 A 88 AB,C : MEASURES
 
 
No records found.

 
 
WDS 18384-0312 : VIRTUAL EYEPIECE
 
 

18384-0312 A 88A mag 7.22 Sp F9V 18384-0312 A 88B sep 0.1 P.A. 12.90 mag 7.51 18384-0312 A 88C sep 18.4 P.A. 115.20 mag 14 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 18384-0312 : ALADIN DSS IMAGE @ 18h 38m 23.80s -03° 11' 37.4"
 
 
 
 
WDS 18384-0312 A 88 AB,C : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18384-0312 A 88AB,C distance=0' 18379-0254 KPP1345 distance=19' 18383-0236 BRT3333 distance=36' 18394-0239 BRT1948 distance=37' 18386-0235 WAM 4 distance=38' 18381-0233 TVB 304 distance=40' 18372-0236 BAL 248 distance=40' 18397-0358 BRT 482 distance=49' 18349-0317 HJ 863 distance=54' 18348-0256 RST4589 distance=57' 18416-0353 RST4593 distance=63' 18385-0418 HJ 5499 distance=67' 18422-0357 J 2521AB distance=73' 18422-0357 J 2521AC distance=73' 18334-0346 GWP2783 distance=83' 18441-0313 J 528 distance=87' 18335-0220 GWP2784AB distance=90' 18335-0220 GWP2785AC distance=90' 18388-0443 BRT 481 distance=92' 18388-0136 BAL 581 distance=97' 18437-0413 SKF 405 distance=101' 18381-0455 RST4592 distance=104' 18454-0314 A 90 distance=106' 18442-0208 BRT 484 distance=110' 18316-0353 A 87AB distance=111' 18316-0353 A 87AC distance=111' 18316-0353 A 87CD distance=111' 18335-0144 RST5118 distance=115' 18366-0114 CON 35AB distance=121' 18366-0114 CON 35AC distance=121' 18395-0107 GWP2791 distance=126' 18334-0458 BST 1AB distance=131' 18334-0458 AGE 9AC distance=131' 18334-0458 AGE 9AD distance=131' 18334-0458 AGE 9AE distance=131' 18334-0458 AGE 9AF distance=131' 18432-0120 AOT 73 distance=134' 18305-0211 CON 34 distance=134' 18468-0223 HJ 5502 distance=136' 18473-0346 J 2232 distance=137' 18475-0338 TNN 12AB distance=139' 18475-0338 TNN 12AC distance=139' 18475-0338 TNN 12AD distance=139' 18475-0338 TNN 12AE distance=139' 18471-0226 A 2687 distance=139' 18416-0522 TDT1001 distance=139' 18293-0246 HJ 859 distance=140' 18416-0525 GII 65 distance=142' 18291-0338 FOX 230 distance=142' 18424-0520 KRV 20 distance=143' 18325-0120 RST5117 distance=143' 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 18384-0312 A 88 AB 13 0.1
Show 18384-0312 A 88 AB,C 115 18.5
Show 18379-0254 KPP1345 75 10.1 19
Show 18383-0236 BRT3333 239 2.3 36
Show 18394-0239 BRT1948 248 4.1 37
Show 18386-0235 WAM 4 93 1.4 38
Show 18381-0233 TVB 304 26 26.3 40
Show 18372-0236 BAL 248 340 5.5 40
Show 18397-0358 BRT 482 160 2.3 49
Show 18349-0317 HJ 863 76 10.1 54
Show 18348-0256 RST4589 88 1.1 57
Show 18416-0353 RST4593 19 0.5 63
Show 18385-0418 HJ 5499 17 32.1 67
Show 18422-0357 J 2521 AB 295 2.6 73
Show 18422-0357 J 2521 AC 89 18.6 73
Show 18334-0346 GWP2783 215 7.6 83
Show 18441-0313 J 528 195 4.6 87
Show 18335-0220 GWP2784 AB 292 455.1 90
Show 18335-0220 GWP2785 AC 337 279.6 90
Show 18388-0443 BRT 481 182 4.9 92
Show 18388-0136 BAL 581 125 3.9 97
Show 18437-0413 SKF 405 22 15.7 101
Show 18381-0455 RST4592 309 5.7 104
Show 18454-0314 A 90 359 3.1 106
Show 18442-0208 BRT 484 51 4.3 110
Show 18316-0353 A 87 AB 294 1.8 111
Show 18316-0353 A 87 AC 316 4.2 111
Show 18316-0353 A 87 CD 4.0 111
Show 18335-0144 RST5118 206 2.9 115
Show 18366-0114 CON 35 AB 32 2.8 121
Show 18366-0114 CON 35 AC 37 7.9 121
Show 18395-0107 GWP2791 186 22.9 126
Show 18334-0458 BST 1 AB 122 4.3 131
Show 18334-0458 AGE 9 AC 1 4.9 131
Show 18334-0458 AGE 9 AD 81 1.3 131
Show 18334-0458 AGE 9 AE 242 2.3 131
Show 18334-0458 AGE 9 AF 233 3.7 131
Show 18432-0120 AOT 73 325 11.7 134
Show 18305-0211 CON 34 328 4.5 134
Show 18468-0223 HJ 5502 5 25.7 136
Show 18473-0346 J 2232 87 5.4 137
Show 18475-0338 TNN 12 AB 266 2.1 139
Show 18475-0338 TNN 12 AC 224 2.5 139
Show 18475-0338 TNN 12 AD 237 3.1 139
Show 18475-0338 TNN 12 AE 355 3.9 139
Show 18471-0226 A 2687 337 1.2 139
Show 18416-0522 TDT1001 66 0.6 139
Show 18293-0246 HJ 859 217 16.9 140
Show 18416-0525 GII 65 358 2.0 142
Show 18291-0338 FOX 230 94 5.1 142
Show 18424-0520 KRV 20 74 25.4 143

 
 
WDS 18384-0312 : COMPONENTS
 
 
  A B
B pa=12.9°
sep=0.11"
 
C pa=115.2°
sep=18.44"
pa=115.6°
sep=18.46"
 
 
18384-0312 A
 
 
Coord arcsec 2000 183823.80-031137.4 Mag 7.22 Spectral class F9V (yellow-white) PmRA 7.00
PmDE 37.0 SAO 142461 HIP 91394 Tycho2 5117-02162-1
HD 172088 HR 6999 GC 25481 BD BD-03 4331
Tycho2
Tycho2 5117-02162-1 Pflag RAmdeg 279.59915834 DEmdeg -3.19364098
PmRA 3.0 PmDE 33.2 E RAmdeg 4 E DEmdeg 5
E pmRA 1.2 E pmDE 1.1 EpRAm 1991.49 EpDEm 1991.19
Num 12 Q RAmdeg 1.5 Q DEmdeg 1.6 Q pmRA 1.5
Q pmDE 1.6 BTmag 7.152 E BTmag 0.016 VTmag 6.546
E VTmag 0.010 Prox 999 TYC T HIP 91394
CCDM AB RAdeg 279.59915167 DEdeg -3.19371750 EpRA 1990 1.77
EpDE 1990 1.67 E RAdeg 4.2 E DEdeg 5.0 Posflg P
Corr 0.2
SAO
SAO 142461 DelFlag RA1950 PmRA1950 -0.0008
DE1950 PmDE1950 0.032 Vmag 6.5 SpType F8
Double code Source 70 CatNum 25481 DM BD-03 4331
DMcomp BDsup HD 172088 M HD 0
GC 25481 RA1950rad 4.86846691 DE1950rad -0.05653185 PmRA2000 -0.0006
PmDE2000 0.032
Hipparcos
Catalog H HIP 91394 Proxy H RAhms 18 38 23.80
DEdms -03 11 37.4 Vmag 6.49 VarFlag R Vmag G
RAdeg 279.599 DEdeg -3.19372 AstroRef * Plx 20.01
CCDM 18384-0312 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 15 Rho 0.13 HD 172088 BD BD-03 4331
CD CP Dm number -03 4331 VIred 0.64
SpType F9IV R SpType Coord arcsec 2000 183823.80-031137.4
Hipparcos 2
HIP 91394 Sn 55 So 3 Nc 2
RArad 4.8799257104 DErad -0.0557409555 Plx 20.85 PmRA 5.33
PmDE 33.61 E RArad 0.84 E DErad 0.45 E Plx 0.91
E pmRA 1 E pmDE 0.65 Hpmag 6.6057 E Hpmag 0.0016
SHp 0.008 VA 0 BV 0.553 E BV 0.002
VI 0.64
CCDM
Ccdm 18384-0312 RComp Comp A Note1
Note2 Discov num DRAs -0.31 DDEs 22.5
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.2 Sp F8 PmNote *
PmRA -11 PmDE 32 Dm number -03 4331 Cat1 BD
Name2 142461 Cat2 SAO HD 172088 M HD
ADS BDS A11520 M ADS BDS N IDS IDS 18332S0317A
HIC 91394
 
 
18384-0312 B
 
 
Coord arcsec 2000 183823.80-031137.3 Mag 7.51 Calc delta mag 0.29 Calc coord yes
CCDM
Ccdm 18384-0312 RComp Comp B Note1 *
Note2 Discov num A 88 DRAs DDEs
R dRAs Year 1900 Theta Rho
Obs 99 Vmag 7.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11520 M ADS BDS N IDS IDS 18332S0317B
HIC 91394
 
 
18384-0312 C
 
 
Coord arcsec 2000 183824.91-031145.3 Mag 14 Calc delta mag 6.78 Calc coord yes
CCDM
Ccdm 18384-0312 RComp Comp C Note1
Note2 Discov num A 88 DRAs DDEs
R dRAs Year 1960 Theta 120 Rho 16.3
Obs 4 Vmag 14.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11520 M ADS BDS N IDS IDS 18332S0317C
HIC