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Current system
03470+2431
HL 17 AB


Nearby doubles
7' : 03474+2435
HL 20AB

9' : 03465+2426
ITO 10AB

9' : 03473+2424
BOV 18

9' : 03464+2435
ITO 8AB

11' : 03474+2440
STF 449

12' : 03466+2421
BOV 15

15' : 03462+2440
RAO 111

15' : 03461+2423
BOV 12

15' : 03459+2433
HJL1026AB
Asterope

16' : 03475+2417
HL 22

17' : 03467+2415
SKF2337

18' : 03465+2415
HL 16AB

19' : 03471+2449
BU 537

19' : 03457+2427
MCD 1

19' : 03458+2422
HL 11AB
Maia

20' : 03457+2438
YAM 1

23' : 03463+2411
BU 536AB

24' : 03485+2421
HL 26AB

24' : 03461+2452
BOV 11

25' : 03452+2428
HJ 3251AB
Taygeta

26' : 03465+2407
BOV 14

26' : 03467+2456
RAO 107

26' : 03475+2406
STFA 8AB
Alcyone

27' : 03466+2458
MET 34

27' : 03465+2405
SKF2463

28' : 03464+2405
MEL 5



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

03470+2431 HL 17 AB

 
 
03h 46m 59.38s +24° 31' 12.8" P.A. 299.00 sep 101.4 mag 6.81,14.82 Sp B9.5V dist. 130.55 pc (425.85 l.y.)
 
 
Coord 2000 03470+2431 Discov num HL   17 Comp AB Coord arcsec 2000 03 46 59.38 +24 31 12.8
Date first 1887 Date last 2015 Obs 5
Pa first 296 Pa last 299 P.A. Now (θ) 299°
Sep first 100.2 Sep last 101.382 Sep. Now (ρ) 101.382"
Mag pri 6.81 Mag sec 14.82 delta mag (ΔM) 8.01 Spectral class B9.5V (blue-white)
Pri motion ra +023 Sec motion ra +026
Pri motion dec -045 Sec motion dec -008
Notes N W (See Notes, )
rPM=0.735
Nature of this double is uncertain.
 
 
03470+2431 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 23568 76183 03 46 59 +24 31 13 CHR 124 Aa,Ab 2008 2 134 0.1 6.81 6.90 0.09
Show 76183 03 46 59 +24 31 13 HL 17 AB 2015 5 299 101.4 6.81 14.82 8.01 <===
Show 76183 03 46 59 +24 31 13 HL 17 AC 2015 5 190 123.1 6.81 13.00 6.19
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Taurus SAO 76183 HIP 17664 Tycho2 1804-02081-1
Gaia DR2 66789872486779520 HD 23568 GC 4531 BD BD+24 562
Distance 130.55 Distance ly 425.85
 
 
WDS 03470+2431 HL 17 AB : NOTES
 
 
discov_num notes refcode
CHR 124 Occultation binary. Has variable radial velocity. Pleiad.
 
 
DISCOVERER
 
 
discov author
CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
03470+2431 HL 17 AB 2000 2 299 101.3 6.81 13.00 B9.5V D 034659.38+243112.8
03470+2431 HL 17 AB 2011 3 299 101.4 6.81 13.00 B9.5V N D 034659.38+243112.8
03470+2431 HL 17 AB 2015 5 299 101.4 6.81 14.82 B9.5V N W 034659.38+243112.8

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

 
 
WDS 03470+2431 HL 17 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03470+2431 HL 17 AB : MEASURES
 
 
No records found.

 
 
WDS 03470+2431 : VIRTUAL EYEPIECE
 
 

03470+2431 HL 17A mag 6.81 Sp B9.5V 03470+2431 CHR 124Ab sep 0.1 P.A. 134.10 mag 6.9 03470+2431 HL 17B sep 101.4 P.A. 299.00 mag 14.82 03470+2431 HL 17C sep 123.1 P.A. 190.30 mag 13 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 03470+2431 : ALADIN DSS IMAGE @ 03h 46m 59.38s +24° 31' 12.8"
 
 
 
 
WDS 03470+2431 HL 17 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03470+2431 HL 17AB distance=0' 03474+2435 HL 20AB distance=7' 03474+2435 HL 20AC distance=7' 03465+2426 ITO 10AB distance=9' 03465+2426 ITO 10AD distance=9' 03465+2426 ITO 10AE distance=9' 03465+2426 ITO 10AC distance=9' 03465+2426 ITO 10BC distance=9' 03473+2424 BOV 18 distance=9' 03464+2435 LDS6110AC distance=9' 03464+2435 ITO 8AB distance=9' 03474+2440 STF 449 distance=11' 03466+2421 BOV 15 distance=12' 03459+2433 POU 309DE distance=13' 03459+2433 HL 14BC distance=13' 03459+2433 OCC 193Ba,Bb distance=13' 03462+2440 RAO 111 distance=15' 03461+2423 BOV 12 distance=15' 03459+2433 HJL1026AB (Asterope) distance=15' 03459+2433 HL 12AD (Asterope) distance=15' 03475+2417 HL 22 distance=16' 03467+2415 SKF2337 distance=17' 03465+2415 CHR 12Aa,Ab distance=18' 03465+2415 HL 16AB distance=18' 03471+2449 BU 537 distance=19' 03457+2427 MCD 1 distance=19' 03458+2422 HL 11AB (Maia) distance=19' 03458+2422 OCC 248Aa,Ab distance=19' 03457+2438 YAM 1 distance=20' 03482+2419 CHR 155Ja,Jb distance=21' 03456+2420 COU 560Ba,Bb distance=22' 03456+2420 HJL1025BC distance=22' 03463+2411 BAR9003DE distance=22' 03463+2411 BU 536CD distance=23' 03463+2411 BU 536AB distance=23' 03463+2411 S 437AB,C distance=23' 03485+2421 HL 26AB distance=24' 03485+2421 OCC9035Aa,Ab distance=24' 03475+2406 STFA 8CD distance=24' 03475+2406 WSI 52Da,Db distance=24' 03461+2452 BOV 11 distance=24' 03452+2428 HJ 3251AB (Taygeta) distance=25' 03452+2428 HL 9AC (Taygeta) distance=25' 03452+2428 OCC 235Aa,Ab (Taygeta) distance=25' 03475+2406 STFA 8BD distance=25' 03475+2406 OCC9084Ba,Bb distance=25' 03475+2406 STFA 8BC distance=25' 03465+2407 BOV 14 distance=26' 03467+2456 RAO 107 distance=26' 03475+2406 STFA 8AB (Alcyone) distance=26' 03475+2406 HL 23AF (Alcyone) distance=26' 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 03470+2431 CHR 124 Aa,Ab 134 0.1 0
Show 03470+2431 HL 17 AB 299 101.4 0
Show 03470+2431 HL 17 AC 190 123.1 0
Show 03474+2435 HL 20 AB 95 32.7 7
Show 03474+2435 HL 20 AC 63 130.1 7
Show 03465+2426 ITO 10 AB 134 12.6 9
Show 03465+2426 ITO 10 AD 234 16.2 9
Show 03465+2426 ITO 10 AE 127 9.3 9
Show 03465+2426 ITO 10 AC 136 12.6 9
Show 03465+2426 ITO 10 BC -1 0.3 9
Show 03473+2424 BOV 18 346 1.1 9
Show 03464+2435 LDS6110 AC 198 83.1 9
Show 03464+2435 ITO 8 AB 302 9.5 9
Show 03474+2440 STF 449 330 6.8 11
Show 03466+2421 BOV 15 257 0.8 12
Show 03459+2433 POU 309 DE 162 17.5 13
Show 03459+2433 HL 14 BC 267 51.4 13
Show 03459+2433 OCC 193 Ba,Bb -1 0.1 13
Show 03462+2440 RAO 111 35 1.4 15
Show 03461+2423 BOV 12 232 1.2 15
Show Asterope 03459+2433 HJL1026 AB 130 149.6 15
Show Asterope 03459+2433 HL 12 AD 74 170.5 15
Show 03475+2417 HL 22 17 94.7 16
Show 03467+2415 SKF2337 36 3.2 17
Show 03465+2415 CHR 12 Aa,Ab 189 0.3 18
Show 03465+2415 HL 16 AB 35 119.0 18
Show 03471+2449 BU 537 219 0.6 19
Show 03457+2427 MCD 1 133 2.5 19
Show Maia 03458+2422 HL 11 AB 73 113.4 19
Show 03458+2422 OCC 248 Aa,Ab -1 0.0 19
Show 03457+2438 YAM 1 19 8.1 20
Show 03482+2419 CHR 155 Ja,Jb 155 0.1 21
Show 03456+2420 COU 560 Ba,Bb 356 0.2 22
Show 03456+2420 HJL1025 BC 164 176.5 22
Show 03463+2411 BAR9003 DE 323 8.6 22
Show 03463+2411 BU 536 CD 5 18.3 23
Show 03463+2411 BU 536 AB 179 1.1 23
Show 03463+2411 S 437 AB,C 308 38.8 23
Show 03485+2421 HL 26 AB 217 71.6 24
Show 03485+2421 OCC9035 Aa,Ab 231 0.4 24
Show 03475+2406 STFA 8 CD 225 54.7 24
Show 03475+2406 WSI 52 Da,Db 293 0.3 24
Show 03461+2452 BOV 11 202 0.9 24
Show Taygeta 03452+2428 HJ 3251 AB 329 71.7 25
Show Taygeta 03452+2428 HL 9 AC 54 52.7 25
Show Taygeta 03452+2428 OCC 235 Aa,Ab -1 0.0 25
Show 03475+2406 STFA 8 BD 305 75.2 25
Show 03475+2406 OCC9084 Ba,Bb -1 0.0 25
Show 03475+2406 STFA 8 BC 345 86.2 25
Show 03465+2407 BOV 14 311 0.3 26
Show 03467+2456 RAO 107 131 0.4 26

 
 
WDS 03470+2431 : COMPONENTS
 
 
  A Ab B
Ab pa=134.1°
sep=0.12"
 
B pa=299.0°
sep=101.38"
pa=299.0°
sep=101.49"
 
C pa=190.3°
sep=123.13"
pa=190.3°
sep=123.06"
pa=158.6°
sep=182.88"
 
 
03470+2431 A
 
 
Coord arcsec 2000 034659.38+243112.8 Mag 6.81 Spectral class B9.5V (blue-white) PmRA 23.00
PmDE -45.0 SAO 76183 HIP 17664 Tycho2 1804-02081-1
HD 23568 GC 4531 BD BD+24 562
Tycho2
Tycho2 1804-02081-1 Pflag RAmdeg 56.74748776 DEmdeg 24.52012034
PmRA 20.5 PmDE -46.6 E RAmdeg 4 E DEmdeg 5
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.29 EpDEm 1990.99
Num 17 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.7
Q pmDE 1.0 BTmag 6.842 E BTmag 0.015 VTmag 6.824
E VTmag 0.011 Prox 999 TYC T HIP 17664
CCDM RAdeg 56.74743528 DEdeg 24.52023083 EpRA 1990 1.66
EpDE 1990 1.45 E RAdeg 4.2 E DEdeg 4.9 Posflg
Corr -0.2
SAO
SAO 76183 DelFlag RA1950 PmRA1950 0.0011
DE1950 PmDE1950 -0.035 Vmag 6.7 SpType B9
Double code Source 70 CatNum 4531 DM BD+24 562
DMcomp BDsup HD 23568 M HD 0
GC 4531 RA1950rad 0.97740386 DE1950rad 0.42528062 PmRA2000 0.001
PmDE2000 -0.038
Hipparcos
Catalog H HIP 17664 Proxy RAhms 03 46 59.38
DEdms +24 31 12.8 Vmag 6.83 VarFlag R Vmag H
RAdeg 56.7474 DEdeg 24.5202 AstroRef Plx 6.66
CCDM 21.47 N CCDM Nsys Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD BD BD+24 562
CD CP Dm number +24 562 VIred 0.04
SpType B9.5V R SpType Coord arcsec 2000 034659.38+243112.8
Hipparcos 2
HIP 17664 Sn 5 So 0 Nc 1
RArad 0.9904295212 DErad 0.4279588177 Plx 7.66 PmRA 22.73
PmDE -45 E RArad 0.69 E DErad 0.6 E Plx 0.66
E pmRA 0.84 E pmDE 0.85 Hpmag E Hpmag 0.0006
SHp 0.008 VA 0 BV 0.021 E BV 0.007
VI 0.04
CCDM
Ccdm 03470+2431 RComp Comp A Note1
Note2 Discov num DRAs -0.66 DDEs 11.9
R dRAs 81 Year Theta Rho
Obs 2 Vmag 6.8 Sp B9 PmNote @
PmRA 9 PmDE -54 Dm number +24 562 Cat1 BD
Name2 +24 341 Cat2 AGK2/3 HD 23568 M HD
ADS BDS M ADS BDS N N IDS W IDS 03470+2431A
HIC 17664
 
 
03470+2431 Ab
 
 
Coord arcsec 2000 034659.39+243112.7 Mag 6.9 Delta magnitude 0.09 Coordinate calculated yes
 
 
03470+2431 B
 
 
Coord arcsec 2000 034652.88+243202.0 Mag 14.82 PmRA 26.00 PmDE -8.0
Delta magnitude 8.01 Coordinate calculated yes
CCDM
Ccdm 03470+2431 RComp Comp B Note1
Note2 Discov num CHR 124 DRAs DDEs
R dRAs Year 1987 Theta 4 Rho 0.2
Obs 1 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS W IDS 03470+2431B
HIC 17664
 
 
03470+2431 C
 
 
Coord arcsec 2000 034657.77+242911.7 Mag 13 Delta magnitude 6.19 Coordinate calculated yes