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Current system
18448+3736
FYM 42 AF


Nearby doubles
4' : 18445+3733
ES 2482

21' : 18463+3745
ES 2484

21' : 18451+3756
ES 2020

22' : 18446+3715
UC 3660

42' : 18459+3657
COU1309

43' : 18483+3741
UC 3677

43' : 18452+3819
STF2393AB

45' : 18449+3651
ES 2483

49' : 18471+3656
COU1310

50' : 18432+3822
HDS2651

50' : 18466+3821
HU 1191

59' : 18475+3647
ES 2022

63' : 18454+3634
HDS2659

65' : 18397+3800
MET 86AB

66' : 18399+3806
HU 1190

71' : 18496+3818
AG 226

71' : 18402+3822
HDS2644

72' : 18496+3819
FYM 173

76' : 18419+3629
SLE 364

80' : 18466+3853
ES 2021AB

80' : 18453+3856
COU1608

81' : 18389+3658
ALI 378

82' : 18516+3739
ES 2025AB

82' : 18412+3627
TDT 993

86' : 18423+3616
A 1381

87' : 18520+3731
ES 2026AB



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

18448+3736 FYM 42 AF

 
 
18h 44m 46.36s +37° 36' 18.4" P.A. 330.00 sep 77.5 mag 4.34,13.70 Sp F0IVv dist. 47.87 pc (156.15 l.y.)
 
 
Coord 2000 18448+3736 Discov num FYM  42 Comp AF Coord arcsec 2000 18 44 46.36 +37 36 18.4
Date first 2000 Date last 2012 Obs 3
Pa first 330 Pa last 330 P.A. Now (θ) 330°
Sep first 76.8 Sep last 77.52 Sep. Now (ρ) 77.52"
Mag pri 4.34 Mag sec 13.70 delta mag (ΔM) 9.36 Spectral class F0IVv (yellow-white)
Pri motion ra +029 Sec motion ra
Pri motion dec +027 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
18448+3736 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 67321 18 44 46 +37 36 18 BU 968 AB 2012 9 50 22.3 4.34 15.80 11.46
Show 67321 18 44 46 +37 36 18 BU 968 AC 2012 8 270 48.9 4.34 13.30 8.96
Show Zet2 Lyr 67321 18 44 46 +37 36 18 STFA 38 AD 2018 115 150 43.7 4.34 5.62 1.28
Show 67321 18 44 46 +37 36 18 BU 968 AE 2012 9 298 62.5 4.34 13.50 9.16
Show 67321 18 44 46 +37 36 18 FYM 42 AF 2012 3 330 77.5 4.34 13.70 9.36 <===
Sextuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV11308 Lyr Constellation Lyra SAO 67321 HIP 91971
Tycho2 3118-02080-1 Gaia DR2 2096875399811529472 HD 173648 HR 7056
GC 25676 ADS 11639 BD BD+37 3222 Bayer Zeta 1 Lyrae
Bayer name Zet1 Lyr Flamsteed 6 Lyrae Flamsteed name 6 Lyr Distance 47.87
Distance ly 156.15 Bayer greek ζ1 Lyr
 
 
WDS 18448+3736 FYM 42 AF : NOTES
 
 
discov_num notes refcode
BU 968 A: zet 1 Lyr = 6 Lyr. A is a spectroscopic binary and variable.
STFA 38 D: zet 2 Lyr = 7 Lyr
AD: STTA173. According to Henroteau, the wide pair zet 1 + zet 2 Lyr HFC1828
was first by Bianchini in 1737. Bia1737
AD: SHY 308. Bayesian analysis by Shaya & Olling (2011) indicates very Shy2011
high (near 100%) probability pair is physical.
AD: H 5 2. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Bia1737 - Bianchini ...................
Bia1737 Observationes selectae astronomicae, Veronae, 1737, p 208
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Shy2011 - Shaya, E.J. & Olling, R. 2011ApJS..192....2S
Shy2011 ApJS 192, 2, 2011
Shy2011 (Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011 added to WDS only if probability 90% or greater.)
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 FYM Fay, M.
206 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
18448+3736 FYM 42 AF 2012 3 330 77.5 4.34 13.80 F0IVv N 184446.36+373618.4

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

 
 
WDS 18448+3736 FYM 42 AF : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18448+3736 FYM 42 AF : MEASURES
 
 
No records found.

 
 
WDS 18448+3736 : VIRTUAL EYEPIECE
 
 

18448+3736 BU 968A mag 4.34 Sp F0IVv 18448+3736 BU 968B sep 19.7 P.A. 42.90 mag 15.8 18448+3736 BU 968C sep 19.7 P.A. 42.90 mag 13.3 18448+3736 STFA 38D sep 41.6 P.A. 155.20 mag 5.62 18448+3736 BU 968E sep 52.7 P.A. 303.90 mag 13.5 18448+3736 FYM 42F sep 73.8 P.A. 335.40 mag 13.7 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18448+3736 : ALADIN DSS IMAGE @ 18h 44m 46.36s +37° 36' 18.4"
 
 
 
 
WDS 18448+3736 FYM 42 AF : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18448+3736 FYM 42AF distance=0' 18445+3733 ES 2482 distance=4' 18463+3745 ES 2484 distance=21' 18451+3756 ES 2020 distance=21' 18446+3715 UC 3660 distance=22' 18459+3657 COU1309 distance=42' 18483+3741 UC 3677 distance=43' 18452+3819 STF2393AB distance=43' 18452+3819 STF2393AC distance=43' 18452+3819 STF2393BC distance=44' 18449+3651 ES 2483 distance=45' 18471+3656 COU1310 distance=49' 18432+3822 HDS2651 distance=50' 18466+3821 HU 1191 distance=50' 18475+3647 ES 2022 distance=59' 18454+3634 HDS2659 distance=63' 18397+3800 MET 86AB distance=65' 18397+3800 MET 86AC distance=65' 18397+3800 MET 86AD distance=65' 18397+3800 MET 86AE distance=65' 18397+3800 MET 86AF distance=65' 18397+3800 MET 86AG distance=65' 18397+3800 GII 269Aa,Ab distance=65' 18399+3806 HU 1190 distance=66' 18496+3818 AG 226 distance=71' 18402+3822 HDS2644 distance=71' 18496+3819 FYM 173 distance=72' 18419+3629 SLE 364 distance=76' 18466+3853 ES 2021BC distance=79' 18466+3853 ES 2021AB distance=80' 18466+3853 ES 2021AC distance=80' 18453+3856 COU1608 distance=80' 18389+3658 ALI 378 distance=81' 18516+3739 ES 2025BC distance=81' 18516+3739 ES 2025BD distance=81' 18516+3739 ES 2025AB distance=82' 18516+3739 ES 2025AD distance=82' 18516+3739 FYM 39AE distance=82' 18516+3739 FYM 39AF distance=82' 18516+3739 FYM 39AG distance=82' 18412+3627 TDT 993 distance=82' 18423+3616 A 1381 distance=86' 18520+3731 ES 2026AB distance=87' 18520+3731 ES 2026BC distance=87' 18480+3858 ES 2572 distance=91' 18376+3806 ES 2019AB distance=91' 18376+3806 ES 2019AC distance=91' 18380+3652 KPP1213 distance=93' 18523+3713 COU1311 distance=93' 18516+3648 ES 241 distance=95' 18484+3612 ES 2023 distance=96' 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 18448+3736 BU 968 AB 50 22.3
Show 18448+3736 BU 968 AC 270 48.9
Show 18448+3736 STFA 38 AD 150 43.7
Show 18448+3736 BU 968 AE 298 62.5
Show 18448+3736 FYM 42 AF 330 77.5
Show 18445+3733 ES 2482 161 12.4 4
Show 18463+3745 ES 2484 153 6.8 21
Show 18451+3756 ES 2020 343 3.2 21
Show 18446+3715 UC 3660 258 29.3 22
Show 18459+3657 COU1309 175 0.5 42
Show 18483+3741 UC 3677 338 64.3 43
Show 18452+3819 STF2393 AB 24 18.2 43
Show 18452+3819 STF2393 AC 302 184.5 43
Show 18452+3819 STF2393 BC 296 182.8 44
Show 18449+3651 ES 2483 89 5.7 45
Show 18471+3656 COU1310 4 1.5 49
Show 18432+3822 HDS2651 52 0.5 50
Show 18466+3821 HU 1191 338 0.2 50
Show 18475+3647 ES 2022 127 4.5 59
Show 18454+3634 HDS2659 17 0.2 63
Show 18397+3800 MET 86 AB 325 1.8 65
Show 18397+3800 MET 86 AC 356 4.8 65
Show 18397+3800 MET 86 AD 355 7.8 65
Show 18397+3800 MET 86 AE 38 8.2 65
Show 18397+3800 MET 86 AF 110 11.8 65
Show 18397+3800 MET 86 AG 111 11.8 65
Show 18397+3800 GII 269 Aa,Ab 110 0.2 65
Show 18399+3806 HU 1190 167 1.7 66
Show 18496+3818 AG 226 54 26.0 71
Show 18402+3822 HDS2644 76 0.1 71
Show 18496+3819 FYM 173 166 19.3 72
Show 18419+3629 SLE 364 170 22.1 76
Show 18466+3853 ES 2021 BC 298 3.8 79
Show 18466+3853 ES 2021 AB 254 20.2 80
Show 18466+3853 ES 2021 AC 261 23.1 80
Show 18453+3856 COU1608 230 1.1 80
Show 18389+3658 ALI 378 33 12.4 81
Show 18516+3739 ES 2025 BC 78 5.9 81
Show 18516+3739 ES 2025 BD 11 5.3 81
Show 18516+3739 ES 2025 AB 353 25.0 82
Show 18516+3739 ES 2025 AD 356 30.1 82
Show 18516+3739 FYM 39 AE 299 63.2 82
Show 18516+3739 FYM 39 AF 205 87.9 82
Show 18516+3739 FYM 39 AG 116 55.1 82
Show 18412+3627 TDT 993 164 0.4 82
Show 18423+3616 A 1381 93 0.4 86
Show 18520+3731 ES 2026 AB 112 20.5 87
Show 18520+3731 ES 2026 BC 334 4.6 87
Show 18480+3858 ES 2572 66 6.3 91
Show 18376+3806 ES 2019 AB 115 6.6 91
Show 18376+3806 ES 2019 AC 32 14.7 91

 
 
WDS 18448+3736 : COMPONENTS
 
 
  A B C D E
B pa=42.9°
sep=19.72"
 
C pa=0.0°
sep=0.00"
pa=254.5°
sep=54.10"
 
D pa=155.2°
sep=41.61"
pa=175.6°
sep=52.35"
pa=123.9°
sep=67.69"
 
E pa=303.9°
sep=52.66"
pa=284.6°
sep=59.07"
pa=350.3°
sep=29.77"
pa=317.6°
sep=90.83"
 
F pa=335.4°
sep=73.82"
pa=320.1°
sep=68.74"
pa=6.8°
sep=67.61"
pa=335.3°
sep=115.43"
pa=19.0°
sep=39.97"
 
 
18448+3736 A
 
 
Coord arcsec 2000 184446.36+373618.4 Mag 4.34 Spectral class F0IVv (yellow-white) PmRA 29.00
PmDE 27.0 SAO 67321 HIP 91971 Tycho2 3118-02080-1
HD 173648 HR 7056 GC 25676 BD BD+37 3222
Bayer Zeta 1 Lyrae Bayer name Zet1 Lyr Flamsteed 6 Lyrae Flamsteed name 6 Lyr
Tycho2
Tycho2 3118-02080-1 Pflag RAmdeg 281.19314347 DEmdeg 37.60511039
PmRA 24.8 PmDE 24.0 E RAmdeg 3 E DEmdeg 3
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.56 EpDEm 1991.51
Num 8 Q RAmdeg 0.7 Q DEmdeg 1.3 Q pmRA 0.8
Q pmDE 1.3 BTmag 4.570 E BTmag 0.014 VTmag 4.342
E VTmag 0.009 Prox 437 TYC T HIP 91971
CCDM RAdeg 281.19307056 DEdeg 37.60505417 EpRA 1990 1.62
EpDE 1990 1.57 E RAdeg 3.3 E DEdeg 3.3 Posflg
Corr -0.1
SAO
SAO 67321 DelFlag RA1950 PmRA1950 0.002
DE1950 PmDE1950 0.024 Vmag 4.3 SpType A3
Double code Source 70 CatNum 25676 DM BD+37 3222
DMcomp BDsup HD 173648 M HD 0
GC 25676 RA1950rad 4.90022559 DE1950rad 0.65540157 PmRA2000 0.0023
PmDE2000 0.024
Hipparcos
Catalog H HIP 91971 Proxy RAhms 18 44 46.34
DEdms +37 36 18.2 Vmag 4.34 VarFlag R Vmag H
RAdeg 281.193 DEdeg 37.605 AstroRef Plx 21.23
CCDM 18448+3736 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 173648 BD BD+37 3222
CD CP Dm number +37 3222 VIred 0.18
SpType Am R SpType Coord arcsec 2000 184446.34+373618.2
Hipparcos 2
HIP 91971 Sn 5 So 0 Nc 1
RArad 4.907744845 DErad 0.6563319405 Plx 20.89 PmRA 29.04
PmDE 27.03 E RArad 0.13 E DErad 0.14 E Plx 0.17
E pmRA 0.15 E pmDE 0.21 Hpmag 4.3992 E Hpmag 0.0005
SHp 0.005 VA 0 BV 0.192 E BV 0.01
VI 0.18
CCDM
Ccdm 18448+3736 RComp Comp A Note1
Note2 Discov num DRAs -1.64 DDEs 18.6
R dRAs 10 Year Theta Rho
Obs 5 Vmag 4.3 Sp A3 PmNote *
PmRA 23 PmDE 26 Dm number +37 3222 Cat1 BD
Name2 +37 1687 Cat2 AGK2/3 HD 173648 M HD
ADS BDS A11639 M ADS BDS N IDS IDS 18413N3730A
HIC 91971
 
 
18448+3736 B
 
 
Coord arcsec 2000 184447.49+373632.8 Mag 15.8 Calc delta mag 11.46 Calc coord yes
CCDM
Ccdm 18448+3736 RComp Comp B Note1
Note2 Discov num BU 968 DRAs DDEs
R dRAs Year 1934 Theta 050 Rho 25.5
Obs 3 Vmag 15.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11639 M ADS BDS N IDS IDS 18413N3730B
HIC
 
 
18448+3736 C
 
 
Coord arcsec 2000 184443.10+373618.4 Mag 13.3 Calc delta mag 8.96 Calc coord yes
CCDM
Ccdm 18448+3736 RComp Comp C Note1
Note2 Discov num BU 968 DRAs DDEs
R dRAs Year 1923 Theta 272 Rho 46.1
Obs 4 Vmag 13.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11639 M ADS BDS N IDS IDS 18413N3730C
HIC
 
 
18448+3736 D
 
 
Coord arcsec 2000 184447.83+373540.6 Mag 5.62 PmRA 19.00 PmDE 21.0
SAO 67324 HIP 91973 Tycho2 3118-02081-1 HD 173649
HR 7057 GC 25678 BD BD+37 3223 Bayer Zeta 2 Lyrae
Bayer name Zet2 Lyr Flamsteed 7 Lyrae Flamsteed name 7 Lyr Calc delta mag 1.28
Calc coord yes
Tycho2
Tycho2 3118-02081-1 Pflag RAmdeg 281.20086114 DEmdeg 37.59461672
PmRA 19.7 PmDE 21.3 E RAmdeg 4 E DEmdeg 4
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.46 EpDEm 1991.45
Num 7 Q RAmdeg 0.5 Q DEmdeg 0.2 Q pmRA 0.6
Q pmDE 0.2 BTmag 5.932 E BTmag 0.014 VTmag 5.621
E VTmag 0.009 Prox 437 TYC T HIP 91973
CCDM RAdeg 281.20080306 DEdeg 37.59456667 EpRA 1990 1.56
EpDE 1990 1.55 E RAdeg 3.5 E DEdeg 3.6 Posflg
Corr -0.1
SAO
SAO 67324 DelFlag RA1950 PmRA1950 0.0015
DE1950 PmDE1950 0.019 Vmag 5.9 SpType A3
Double code Source 70 CatNum 25678 DM BD+37 3223
DMcomp BDsup HD 173649 M HD 0
GC 25678 RA1950rad 4.90035941 DE1950rad 0.6552176 PmRA2000 0.0018
PmDE2000 0.019
Hipparcos
Catalog H HIP 91973 Proxy RAhms 18 44 48.19
DEdms +37 35 40.4 Vmag 5.73 VarFlag R Vmag G
RAdeg 281.201 DEdeg 37.5946 AstroRef Plx 21.72
CCDM 18448+3736 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 173649 BD BD+37 3223
CD CP Dm number +37 3223 VIred 0.32
SpType F0IVvar R SpType Coord arcsec 2000 184448.19+373540.4
Hipparcos 2
HIP 91973 Sn 5 So 0 Nc 1
RArad 4.9078796668 DErad 0.6561489333 Plx 20.97 PmRA 18.7
PmDE 20.98 E RArad 0.18 E DErad 0.21 E Plx 0.24
E pmRA 0.21 E pmDE 0.29 Hpmag 5.7902 E Hpmag 0.0006
SHp 0.006 VA 0 BV 0.285 E BV 0.009
VI 0.32
CCDM
Ccdm 18448+3736 RComp Comp D Note1
Note2 Discov num STF4038 DRAs 0.28 DDEs -19.6
R dRAs 10 Year 1835 Theta 150 Rho 43.7
Obs 14 Vmag 5.9 Sp A3 PmNote *
PmRA 29 PmDE 14 Dm number +37 3223 Cat1 BD
Name2 +37 1688 Cat2 AGK2/3 HD 173649 M HD
ADS BDS A11639 M ADS BDS N IDS IDS 18413N3730D
HIC 91973
 
 
18448+3736 E
 
 
Coord arcsec 2000 184442.68+373647.7 Mag 13.5 Calc delta mag 9.16 Calc coord yes
CCDM
Ccdm 18448+3736 RComp Comp E Note1
Note2 Discov num BU 968 DRAs DDEs
R dRAs Year 1960 Theta 301 Rho 61.8
Obs 5 Vmag 11.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11639 M ADS BDS N IDS IDS 18413N3730E
HIC
 
 
18448+3736 F
 
 
Coord arcsec 2000 184443.78+373725.5 Mag 13.7 Calc delta mag 9.36 Calc coord yes