18443+3940 STFA 37 EI

 
 
18h 44m 20.41s +39° 37' 42.8" P.A. 68.00 sep 108.9 mag 12.30,10.12
 
 
Coord 2000 18443+3940 Discov num STFA 37 Comp EI Coord arcsec 2000 18 44 20.41 +39 37 42.8
Date first 2000 Date last 2015 Obs 7
Pa first 68 Pa last 68.2 P.A. Now (θ) 68.2°
Sep first 109.1 Sep last 108.873 Sep. Now (ρ) 108.873"
Mag pri 12.30 Mag sec 10.12 delta mag (ΔM) 2.18 Spectral class
Pri motion ra -000 Sec motion ra -007
Pri motion dec -007 Sec motion dec -004
Notes N (See Notes)
rPM=0.945
This double is not physical.
 
 
18443+3940 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 67310 18 44 20 +39 40 12 STF 2382 AB 2021 641 345 2.2 5.15 6.10 0.95 Y
Show Double Double 67310 18 44 20 +39 40 12 STFA 37 AB,CD 2021 98 172 209.4 4.67 4.56 0.11
Show 67310 18 44 20 +39 40 12 STFA 37 AD 2021 19 172 208.2 5.15 5.38 0.23
Show 67310 18 44 20 +39 40 12 STFA 37 AI 2021 24 137 150.4 5.15 10.12 4.97
Show 67315 18 44 20 +39 40 14 STFA 37 BC 2011 14 172 210.9 6.10 5.25 0.85
Show 67315 18 44 20 +39 40 14 STFA 37 BD 2021 12 171 212.5 6.10 5.38 0.72
Show 18 44 20 +39 40 14 STFA 37 BI 2015 10 137 151.3 6.10 10.12 4.02
Show 67315 18 44 23 +39 36 46 CHR 77 Ca,Cb 2005 5 225 0.1 5.25 Y
Show 67315 18 44 23 +39 36 46 STF 2383 CD 2021 641 75 2.3 5.25 5.38 0.13 Y
Show 67315 18 44 23 +39 36 46 SHJ 277 CD,F 2015 3 0 93.3 4.56 12.70 8.14
Show 67315 18 44 23 +39 36 46 SHJ 277 CD,G 2015 4 293 75.1 4.56 14.20 9.64
Show 67315 18 44 23 +39 36 46 SHJ 277 CD,H 2015 4 313 95.7 4.56 13.90 9.34
Show 67310 18 44 23 +39 36 46 STF 2383 CE 2015 8 334 63.2 5.25 12.30 7.05
Show 18 44 23 +39 36 46 STFA 37 CI 2012 18 37 120.4 5.25 10.12 4.87
Show 67315 18 44 23 +39 36 46 STFA 37 DI 2000 6 37 121.6 5.38 10.12 4.74
Show 67310 18 44 20 +39 37 43 SHJ 277 EF 2021 16 37 45.4 12.30 12.70 0.40
Show 67310 18 44 20 +39 37 43 SHJ 277 EG 2015 11 236 50.0 12.30 14.20 1.90
Show 18 44 20 +39 37 43 STFA 37 EI 2015 7 68 108.9 12.30 10.12 2.18 <===
Show 18 44 17 +39 37 16 SHJ 277 GH 2015 13 358 35.8 14.20 13.90 0.30
11-fold system
11 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra Gaia DR2 2098202334255216128 DM BD+39 3512
 
 
WDS 18443+3940 STFA 37 EI : NOTES
 
 
discov_num notes refcode
STF2382 A: eps 1 Lyr = 4 Lyr
AB: A premature orbit has been computed.
STFA 37 AB,CD: See ADS for notes of components. A__1932a
AB and CD form the physical quadruple eps Lyrae, separation
208". The observed small RV variations in each pair are probably
merely scatter due to the very poor lines.
BD: SHY 307. Bayesian analysis by Shaya & Olling (2011) indicates very Shy2011
high (near 100%) probability pair is physical.
STF2383 C: eps 2 Lyr = 5 Lyr
CHR 77 Ca: See note for 18323-1439 = CHR 73. Hrt1996b
Ca is an Alpha CVn-type variable.
The measures show a large scatter and there are many observations of
the wider pair without a measure of this close companion. The nature
of the motion or even the reality of this pair is in question. Tok2010b
STF2383 The longitude of periastron in the orbit of CD has been corrected. Gzl1956a
SHJ 277 EF, EG, etc.: A preliminary sketch of the motions of the SHJ group
show the G component may be flying away in position angle ~190 Dal2002a
STF2382 AB: H 2 5. STF2383CD: H 2 6. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
A__1932a Ma - Aitken, R.G. 1932QB821.A43......
A__1932a Aitken Double Star Catalogue, 1932
Dal2002a Ma u Daley, J.A. 2002DSO.....8....1D
Dal2002a +C Double Star Observer 8, #1, 2002
Gzl1956a orb - Guntzel-Lingner, U. 1956AN....283...73G
Gzl1956a AN 283, 73, 1956
Hrt1996b Sc j Hartkopf, W.I., Mason, B.D., McAlister, H.A., Turner, N.H., Barry, D.J., Franz, . 1996AJ....111..936H
Hrt1996b O.G., & Prieto, C.M
Hrt1996b AJ 111, 936, 1996
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.)
Tok2010b S - Tokovinin, A. ...................
Tok2010b private communication
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
3 SHJ South, J. & Herschel, J.
20 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
18443+3940 STFA 37 EI 2011 1 68 108.9 11.71 10.43 184420.41+393742.8
18443+3940 STFA 37 EI 2015 4 68 108.9 12.30 10.12 N 184420.41+393742.8

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

 
 
WDS 18443+3940 STFA 37 EI : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18443+3940 STFA 37 EI : MEASURES
 
 
No records found.

 
 
WDS 18443+3940 : VIRTUAL EYEPIECE
 
 

18443+3940 STF2382A mag 5.15 Sp A4V 18443+3940 STFA 37B sep 2.0 P.A. 347.00 mag 6.1 Sp F1V 18443+3940 STF2383C sep 208.5 P.A. 172.20 mag 5.25 Sp A8Vn 18443+3940 CHR  77Cb sep 208.6 P.A. 172.20 18443+3940 STFA 37D sep 208.7 P.A. 171.60 mag 5.38 Sp F0Vn 18443+3940 SHJ 277E sep 149.6 P.A. 179.70 mag 12.3 Sp F1V 18443+3940 SHJ 277F sep 116.8 P.A. 166.00 mag 12.7 18443+3940 SHJ 277G sep 180.5 P.A. 193.00 mag 14.2 18443+3940 SHJ 277H sep 143.9 P.A. 190.30 mag 13.9 Sp A7Vn 18443+3940 STFA 37I sep 135.6 P.A. 144.70 mag 10.12 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 18443+3940 : ALADIN DSS IMAGE @ 18h 44m 20.41s +39° 37' 42.8"
 
 
 
 
WDS 18443+3940 STFA 37 EI : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18443+3940  STFA 37EI distance=0' 18443+3940  SHJ 277GH distance=1' 18443+3940  CHR  77Ca,Cb distance=2' 18443+3940  SHJ 277CD,F distance=2' 18443+3940  SHJ 277CD,G distance=2' 18443+3940  SHJ 277CD,H distance=2' 18443+3940  STF2383CD distance=2' 18443+3940  STF2383CE distance=2' 18443+3940  STFA 37CI distance=2' 18443+3940  STFA 37DI distance=2' 18443+3940  STF2382AB distance=3' 18443+3940  STFA 37AB,CD (Double Double) distance=3' 18443+3940  STFA 37AD distance=3' 18443+3940  STFA 37AI distance=3' 18443+3940  STFA 37BC distance=3' 18443+3940  STFA 37BD distance=3' 18443+3940  STFA 37BI distance=3' 18457+3942  FYM  51BD distance=16' 18457+3942  BU   51BC distance=16' 18457+3942  BU   51AB distance=16' 18426+3937  HJ 1341 distance=20' 18433+3918  BLL  35 distance=24' 18452+3914  STF2392BC distance=26' 18452+3914  STF2392AB distance=26' 18452+3914  STF2392AC distance=26' 18453+4005  ROE  50CF distance=30' 18453+4005  ROE  50AB distance=30' 18453+4005  ROE  50AC distance=30' 18453+4005  ROE  50AD distance=30' 18453+4005  ROE  50AE distance=30' 18453+4005  BKO  53AG distance=30' 18453+4005  BKO  53AH distance=30' 18453+4005  ROE  50AF distance=30' 18465+3958  LDS4799 distance=32' 18418+4001  LSC  83 distance=37' 18436+4020  SLE 122 distance=43' 18453+3856  COU1608 distance=44' 18478+3954  GRV 240 distance=44' 18481+3929  COU1609 distance=45' 18483+3956  SLW1221 distance=50' 18466+3853  ES 2021BC distance=53' 18466+3853  ES 2021AB distance=53' 18466+3853  ES 2021AC distance=53' 18397+3955  TDT 981 distance=57' 18480+3858  ES 2572 distance=59' 18490+3914  COU1610 distance=60' 18483+4018  UC 3676 distance=62' 18404+4028  SLE  92 distance=68' 18466+4042  HDS2663 distance=69' 18501+4002  HU 1192 distance=72' 18381+3935  BU   50AB distance=73' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 18443+3940 SHJ 277 EF 37 45.4
Show 18443+3940 SHJ 277 EG 236 50.0
Show 18443+3940 STFA 37 EI 68 108.9
Show 18443+3940 SHJ 277 GH 358 35.8 1
Show 18443+3940 CHR 77 Ca,Cb 225 0.1 2
Show 18443+3940 SHJ 277 CD,F 93.3 2
Show 18443+3940 SHJ 277 CD,G 293 75.1 2
Show 18443+3940 SHJ 277 CD,H 313 95.7 2
Show 18443+3940 STF2383 CD 75 2.3 2
Show 18443+3940 STF2383 CE 334 63.2 2
Show 18443+3940 STFA 37 CI 37 120.4 2
Show 18443+3940 STFA 37 DI 37 121.6 2
Show 18443+3940 STF2382 AB 345 2.2 3
Show Double Double 18443+3940 STFA 37 AB,CD 172 209.4 3
Show 18443+3940 STFA 37 AD 172 208.2 3
Show 18443+3940 STFA 37 AI 137 150.4 3
Show 18443+3940 STFA 37 BC 172 210.9 3
Show 18443+3940 STFA 37 BD 171 212.5 3
Show 18443+3940 STFA 37 BI 137 151.3 3
Show 18457+3942 FYM 51 BD 344 34.6 16
Show 18457+3942 BU 51 BC 297 6.0 16
Show 18457+3942 BU 51 AB 185 74.2 16
Show 18426+3937 HJ 1341 285 8.8 20
Show 18433+3918 BLL 35 192 60.8 24
Show 18452+3914 STF2392 BC 169 26.2 26
Show 18452+3914 STF2392 AB 314 2.8 26
Show 18452+3914 STF2392 AC 173 23.8 26
Show 18453+4005 ROE 50 CF 99 9.9 30
Show 18453+4005 ROE 50 AB 282 4.7 30
Show 18453+4005 ROE 50 AC 120 26.2 30
Show 18453+4005 ROE 50 AD 253 96.6 30
Show 18453+4005 ROE 50 AE 196 93.6 30
Show 18453+4005 BKO 53 AG 156 51.7 30
Show 18453+4005 BKO 53 AH 301 35.7 30
Show 18453+4005 ROE 50 AF 114 35.7 30
Show 18465+3958 LDS4799 70 10.3 32
Show 18418+4001 LSC 83 266 0.1 37
Show 18436+4020 SLE 122 151 17.9 43
Show 18453+3856 COU1608 230 1.1 44
Show 18478+3954 GRV 240 43 15.6 44
Show 18481+3929 COU1609 202 0.8 45
Show 18483+3956 SLW1221 63 49.1 50
Show 18466+3853 ES 2021 BC 298 3.8 53
Show 18466+3853 ES 2021 AB 254 20.2 53
Show 18466+3853 ES 2021 AC 261 23.1 53
Show 18397+3955 TDT 981 129 0.5 57
Show 18480+3858 ES 2572 66 6.3 59
Show 18490+3914 COU1610 145 0.4 60
Show 18483+4018 UC 3676 11 49.2 62
Show 18404+4028 SLE 92 99 15.9 68
Show 18466+4042 HDS2663 65 0.2 69

 
 
WDS 18443+3940 : COMPONENTS
 
 
  A B C Cb D E F G H
B pa=347.0°
sep=2.05"
 
C pa=172.2°
sep=208.51"
pa=172.2°
sep=210.56"
 
Cb pa=172.2°
sep=208.55"
pa=172.2°
sep=210.59"
pa=217.1°
sep=0.05"
 
D pa=171.6°
sep=208.74"
pa=171.6°
sep=210.79"
pa=87.5°
sep=2.31"
pa=86.5°
sep=2.35"
 
E pa=179.7°
sep=149.60"
pa=179.5°
sep=151.61"
pa=334.3°
sep=63.24"
pa=334.4°
sep=63.26"
pa=332.4°
sep=64.18"
 
F pa=166.0°
sep=116.77"
pa=166.1°
sep=118.83"
pa=360.0°
sep=93.28"
pa=0.0°
sep=93.32"
pa=358.6°
sep=93.20"
pa=37.0°
sep=45.45"
 
G pa=193.0°
sep=180.54"
pa=192.7°
sep=182.38"
pa=294.0°
sep=75.40"
pa=294.1°
sep=75.39"
pa=293.3°
sep=77.48"
pa=237.6°
sep=49.11"
pa=227.7°
sep=93.04"
 
H pa=190.3°
sep=143.95"
pa=190.0°
sep=145.84"
pa=320.2°
sep=84.53"
pa=320.3°
sep=84.55"
pa=319.0°
sep=85.96"
pa=286.7°
sep=27.84"
pa=242.4°
sep=61.00"
pa=23.3°
sep=37.35"
 
I pa=144.7°
sep=135.61"
pa=145.0°
sep=137.51"
pa=27.6°
sep=108.26"
pa=27.6°
sep=108.31"
pa=26.6°
sep=107.12"
pa=63.4°
sep=86.79"
pa=87.0°
sep=50.26"
pa=61.3°
sep=135.74"
pa=73.5°
sep=108.73"
 
 
18443+3940 A
 
 
Coord arcsec 2000 184420.34+394012.4 Mag 5.15 Spectral class A4V (white) PmRA 11.00
PmDE 61.0 SAO 67310 HIP 91919 Tycho2 3122-03438-2
HD 173582 HR 7051 GC 25667 ADS 11635
BD BD+39 3509 Bayer Epsilon 1 Lyrae Bayer name Eps1 Flamsteed 4 Lyrae
Flamsteed name 4 Lyr
Tycho2
Tycho2 3122-03438-2 Pflag RAmdeg 281.08477158 DEmdeg 39.67012519
PmRA 11.1 PmDE 61.0 E RAmdeg 3 E DEmdeg 3
E pmRA 0.8 E pmDE 0.9 EpRAm 1991.48 EpDEm 1991.50
Num 13 Q RAmdeg 1.0 Q DEmdeg 1.7 Q pmRA 1.2
Q pmDE 1.9 BTmag 5.147 E BTmag 0.014 VTmag 5.008
E VTmag 0.009 Prox 26 TYC T HIP 91919
CCDM A RAdeg 281.08473833 DEdeg 39.66998389 EpRA 1990 1.69
EpDE 1990 1.66 E RAdeg 3.4 E DEdeg 3.4 Posflg D
Corr 0.0
SAO
SAO 67310 DelFlag RA1950 PmRA1950 0.0011
DE1950 PmDE1950 0.059 Vmag 5.1 SpType A3
Double code Source 70 CatNum 25667 DM BD+39 3509
DMcomp A BDsup HD 173582 M HD 0
GC 25667 RA1950rad 4.8986209 DE1950rad 0.6914417 PmRA2000 0.0015
PmDE2000 0.059
Hipparcos
Catalog H HIP 91919 Proxy H RAhms 18 44 20.34
DEdms +39 40 11.9 Vmag 4.67 VarFlag R Vmag G
RAdeg 281.085 DEdeg 39.67 AstroRef A Plx 20.1
CCDM 18443+3938 N CCDM I Nsys 2 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 353 Rho 2.536 HD 173582 BD BD+39 3509
CD CP Dm number +39 3509 VIred 0.19
SpType F1V R SpType Coord arcsec 2000 184420.34+394011.9
Hipparcos 2
HIP 91919 Sn 15 So 3 Nc 2
RArad 4.9058541819 DErad 0.6923717076 Plx 20.09 PmRA 11.09
PmDE 61.39 E RArad 0.6 E DErad 0.61 E Plx 0.78
E pmRA 0.7 E pmDE 0.87 Hpmag 4.7286 E Hpmag 0.0006
SHp 0.007 VA 0 BV 0.17 E BV 0.01
VI 0.19
 
 
18443+3940 B
 
 
Coord arcsec 2000 184420.30+394014.4 Coord calc 184420.30+394014.4 Mag 6.1 Spectral class F1V (yellow-white)
PmRA 2.00 PmDE 47.0 Calc delta mag 0.95
 
 
18443+3940 C
 
 
Coord arcsec 2000 184422.78+393645.8 Coord calc 184422.78+393645.8 Mag 5.25 Spectral class A8Vn (white)
PmRA 8.00 PmDE 54.0 Tycho2 3122-03439-1 HD 173608
HR 7054 ADS 11635 DM BD+39 3510 Flamsteed 5 Lyrae
Flamsteed name 5 Lyr Calc delta mag 0.1
Tycho2
Tycho2 3122-03439-1 Pflag P RAmdeg 281.09527752 DEmdeg 39.61274590
PmRA 7.6 PmDE 54.2 E RAmdeg 4 E DEmdeg 4
E pmRA 2.0 E pmDE 1.9 EpRAm 1991.66 EpDEm 1991.62
Num 3 Q RAmdeg 2.5 Q DEmdeg 0.8 Q pmRA 2.5
Q pmDE 0.7 BTmag 5.435 E BTmag 0.014 VTmag 5.246
E VTmag 0.009 Prox 23 TYC T HIP 91926
CCDM C RAdeg 281.09490083 DEdeg 39.61260528 EpRA 1990 1.64
EpDE 1990 1.70 E RAdeg 3.4 E DEdeg 3.4 Posflg D
Corr -0.1
 
 
18443+3940 Cb
 
 
Coord arcsec 2000 184422.78+393645.8 SAO 67315 HIP 91926 HD 173607
HR 7053 GC 25668 BD BD+39 3510 Flamsteed 5 Lyrae
Flamsteed name 5 Lyr Calc delta mag 5.15 Calc coord yes
SAO
SAO 67315 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 0.064 Vmag 4.5 SpType A5
Double code Source 70 CatNum 25668 DM BD+39 3510
DMcomp BDsup HD 173607 M HD 9
GC 25668 RA1950rad 4.89879921 DE1950rad 0.69044252 PmRA2000 0.0006
PmDE2000 0.064
Hipparcos
Catalog H HIP 91926 Proxy H RAhms 18 44 22.78
DEdms +39 36 45.3 Vmag 4.59 VarFlag R Vmag G
RAdeg 281.095 DEdeg 39.6126 AstroRef C Plx 20.34
CCDM 18443+3938 N CCDM I Nsys 2 Ncomp 2
MultFlag C Source Qual A M HIP CD
Theta 87 Rho 2.338 HD 173607 BD BD+39 3510
CD CP Dm number +39 3510 VIred 0.2
SpType A8Vn R SpType Coord arcsec 2000 184422.78+393645.3
Hipparcos 2
HIP 91926 Sn 17 So 3 Nc 2
RArad 4.9060315072 DErad 0.6913702172 Plx 20.97 PmRA 6.18
PmDE 50.42 E RArad 0.35 E DErad 0.7 E Plx 0.5
E pmRA 0.39 E pmDE 0.73 Hpmag 4.6493 E Hpmag 0.0006
SHp 0.005 VA 0 BV 0.18 E BV 0
VI 0.2
 
 
18443+3940 D
 
 
Coord arcsec 2000 184422.98+393645.9 Coord calc 184422.98+393645.9 Mag 5.38 Spectral class F0Vn (yellow-white)
PmRA 8.00 PmDE 54.0 Tycho2 3122-03439-2 Calc delta mag 0.23
Tycho2
Tycho2 3122-03439-2 Pflag P RAmdeg 281.09527752 DEmdeg 39.61274590
PmRA 7.6 PmDE 54.2 E RAmdeg 4 E DEmdeg 4
E pmRA 2.0 E pmDE 1.9 EpRAm 1991.66 EpDEm 1991.62
Num 3 Q RAmdeg 2.5 Q DEmdeg 0.8 Q pmRA 2.5
Q pmDE 0.7 BTmag 5.628 E BTmag 0.014 VTmag 5.383
E VTmag 0.009 Prox 23 TYC T HIP 91926
CCDM D RAdeg 281.09574333 DEdeg 39.61264194 EpRA 1990 1.71
EpDE 1990 1.68 E RAdeg 3.5 E DEdeg 3.5 Posflg D
Corr -0.1
 
 
18443+3940 E
 
 
Coord arcsec 2000 184420.41+393742.8 Coord calc 184420.41+393742.8 Mag 12.3 Spectral class F1V (yellow-white)
PmRA 0.00 PmDE -7.0 ADS 11635 DM BD+39 3509
Calc delta mag 7.15
 
 
18443+3940 F
 
 
Coord arcsec 2000 184422.78+393819.1 Mag 12.7 Calc delta mag 7.55 Calc coord yes
 
 
18443+3940 G
 
 
Coord arcsec 2000 184416.82+393716.5 Coord calc 184416.82+393716.5 Mag 14.2 PmRA -28.00
PmDE -88.0 Calc delta mag 9.05
 
 
18443+3940 H
 
 
Coord arcsec 2000 184418.10+393750.8 Mag 13.9 Spectral class A7Vn (white) PmRA -3.00
PmDE -3.0 Calc delta mag 8.75 Calc coord yes
 
 
18443+3940 I
 
 
Coord arcsec 2000 184427.13+393821.7 Mag 10.12 PmRA -7.00 PmDE -4.0
DM BD+39 3512 Calc delta mag 4.97 Calc coord yes