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Doubles in session


Current system
20422+1952
LBU 19 AC


Nearby doubles
19' : 20435+1953
STF2721

20' : 20410+2001
HJ 2987

21' : 20408+1956
BUP 215AB

22' : 20419+1931
COU 226AB

23' : 20436+1944
STF2722

31' : 20423+1921
SHN 39

32' : 20444+1945
CAR 2

35' : 20412+2023
COU 423

39' : 20448+1943
COU 424

40' : 20393+2003
J 3103

43' : 20398+1927
J 2604

45' : 20396+2018
WFC 257

52' : 20419+2043
BU 673AB

54' : 20386+2007
COU 225

54' : 20447+2032
BRT2484

55' : 20402+2039
SCA 173

55' : 20403+2040
TDT2461

60' : 20433+1855
TDS1094

61' : 20449+2041
J 1179

67' : 20395+1857
HU 362

68' : 20378+1936
J 3099

71' : 20448+2051
A 172

71' : 20406+2059
TDT2465

74' : 20466+1915
COU 426

76' : 20425+1837
TDT2486

76' : 20467+1913
GWP2997



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.

20422+1952 LBU 19 AC

 
 
20h 42m 09.58s +19° 51' 52.6" P.A. 111.00 sep 94.9 mag 7.60,12.76 Sp K0 dist. 197.63 pc (644.67 l.y.)
 
 
Coord 2000 20422+1952 Discov num LBU  19 Comp AC Coord arcsec 2000 20 42 09.58 +19 51 52.6
Date first 1993 Date last 2015 Obs 7
Pa first 113 Pa last 111.1 P.A. Now (θ) 111.1°
Sep first 83.9 Sep last 94.947 Sep. Now (ρ) 94.947"
Mag pri 7.60 Mag sec 12.76 delta mag (ΔM) 5.16 Spectral class K0 (yellow-orange)
Pri motion ra +009 Sec motion ra -001
Pri motion dec -006 Sec motion dec -009
Notes
rPM=0.965
This double is not physical.
 
 
20422+1952 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 197274 106401 20 42 10 +19 51 53 LBU 19 AB 2015 10 138 124.7 7.60 11.68 4.08
Show 106401 20 42 10 +19 51 53 LBU 19 AC 2015 7 111 94.9 7.60 12.76 5.16 <===
Show 106401 20 42 10 +19 51 53 LBU 19 AD 2015 7 23 129.8 7.60 12.96 5.36
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus SAO 106401 HIP 102170 Tycho2 1642-00803-1
Gaia DR2 1814272530333270400 HD 197274 BD BD+19 4489 Distance 197.63
Distance ly 644.67
 
 
WDS 20422+1952 LBU 19 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
LBu1982 Ma j Le Beau, J. 1982O&T.....1...24L
LBu1982 Obs. et Travaux 1, 24, 1982
LBu1983 Ma - Le Beau, J. 1983O&T.....3...26L
LBu1983 Obs. et Travaux 3, 26, 1983
LBu1986a Ma j Le Beau, J. 1986O&T.....5...45L
LBu1986a Obs. et Travaux 5, 45, 1986
LBu1986b Ma j Le Beau, J. 1986O&T.....7...37L
LBu1986b Obs. et Travaux 7, 37, 1986
LBu1986c Ma j Le Beau, J. 1986O&T.....8...40L
LBu1986c Obs. et Travaux 8, 40, 1986
LBu1987a Ma j Le Beau, J. 1987O&T.....9...41L
LBu1987a Obs. et Travaux 9, 41, 1987
LBu1987b Ma j Le Beau, J. 1987O&T....12...37L
LBu1987b Obs. et Travaux 12, 37, 1987
LBu1988 Ma j Le Beau, J. 1988O&T....14...40L
LBu1988 Obs. et Travaux 14, 40, 1988
LBu1989 Ma j Le Beau, J. 1989O&T....17...24L
LBu1989 Obs. et Travaux 17, 24, 1989
LBu1989b - Le Beau, J. 1989A&AS...77..125L
LBu1989b A&AS 77, 125, 1989
LBu1989b (all measures appear to be duplicates of data published in earlier Le Beau papers
LBu1989b in Obs. et Travaux)
LBu1990 Ma j Le Beau, J. 1990A&AS...85..889L
LBu1990 +Mb A&AS 85, 889, 1990 (some measures are also in LBu1990b) 1990O&T....21...39L
LBu1990b Ma j Le Beau, J. 1990O&T....21...39L
LBu1990b Obs. et Travaux 21, 39, 1990
LBu1990c Ma - Le Beau, J. 1990O&T....22...39L
LBu1990c Obs. et Travaux 22, 39, 1990
LBu1991 Ma j Le Beau, J. 1991O&T....26...25L
LBu1991 Obs. et Travaux 26, 25, 1991
LBu1992 Ma j Le Beau, J. 1992O&T....30...38L
LBu1992 Obs. et Travaux 30, 38, 1992
LBu1993a - Le Beau, J. 1993O&T....33...21L
LBu1993a Obs. et Travaux 33, 21, 1993
LBu1993b Ma j Le Beau, J. 1993O&T....34...19L
LBu1993b Obs. et Travaux 34, 19, 1993
LBu1994 Ma j Le Beau, J. 1994O&T....39...13L
LBu1994 Obs. et Travaux 39, 13, 1994
LBu1996 Ma - Le Beau, J. 1996O&T....46...37L
LBu1996 Obs. et Travaux 46, 37, 1996
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20422+1952 LBU 19 AC 2000 2 111 95.1 7.50 13.10 204209.58+195152.6
20422+1952 LBU 19 AC 2001 4 111 95.2 7.50 13.10 D 204209.58+195152.6
20422+1952 LBU 19 AC 2015 4 111 94.9 7.60 12.76 K0 204209.58+195152.6

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

 
 
WDS 20422+1952 LBU 19 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20422+1952 LBU 19 AC : MEASURES
 
 
No records found.

 
 
WDS 20422+1952 : VIRTUAL EYEPIECE
 
 

20422+1952 LBU 19A mag 7.6 Sp K0 20422+1952 LBU 19B sep 121.4 P.A. 139.60 mag 11.68 20422+1952 LBU 19C sep 90.0 P.A. 112.30 mag 12.76 20422+1952 LBU 19D sep 128.7 P.A. 21.60 mag 12.96 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 20422+1952 : ALADIN DSS IMAGE @ 20h 42m 09.58s +19° 51' 52.6"
 
 
 
 
WDS 20422+1952 LBU 19 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20422+1952 LBU 19AC distance=0' 20435+1953 STF2721 distance=19' 20410+2001 HJ 2987 distance=20' 20408+1956 RAO 23Ca,Cb distance=21' 20408+1956 RAO 23CD distance=21' 20408+1956 RAO 23CE distance=21' 20408+1956 BUP 215AB distance=21' 20408+1956 LDS1045AC distance=21' 20419+1931 COU 226AB distance=22' 20419+1931 COU 226AC distance=22' 20436+1944 STF2722 distance=23' 20423+1921 SHN 39 distance=31' 20444+1945 CAR 2 distance=32' 20412+2023 COU 423 distance=35' 20448+1943 COU 424 distance=39' 20393+2003 J 3103 distance=40' 20398+1927 J 2604 distance=43' 20396+2018 WFC 257 distance=45' 20419+2043 BU 673AB distance=52' 20419+2043 BU 673AC distance=52' 20386+2007 COU 225 distance=54' 20447+2032 BRT2484 distance=54' 20402+2039 SCA 173 distance=55' 20403+2040 TDT2461 distance=55' 20433+1855 TDS1094 distance=60' 20449+2041 J 1179 distance=61' 20395+1857 HU 362 distance=67' 20378+1936 J 3099 distance=68' 20448+2051 A 172 distance=71' 20406+2059 TDT2465 distance=71' 20466+1915 COU 426 distance=74' 20425+1837 TDT2486 distance=76' 20467+1913 GWP2997 distance=76' 20423+2109 BRT2480 distance=78' 20471+1918 HO 141AB distance=78' 20471+1918 HO 141AC distance=78' 20385+1848 J 3102 distance=79' 20381+2050 COU 328 distance=83' 20467+2044 HJ 2999AB distance=83' 20467+2044 TOB 197AC distance=83' 20363+1924 KPP 475 distance=88' 20472+1901 TDT2538 distance=88' 20420+1821 J 193 distance=91' 20383+2106 TDT2441 distance=92' 20467+1846 YR 28 distance=92' 20444+2119 A 171 distance=93' 20365+2044 J 3096AB distance=95' 20365+2044 J 3096BC distance=95' 20488+1943 JNN 286 distance=96' 20445+2123 BRT2483 distance=97' 20407+2128 COU 127 distance=99' 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 20422+1952 LBU 19 AB 138 124.7
Show 20422+1952 LBU 19 AC 111 94.9
Show 20422+1952 LBU 19 AD 23 129.8
Show 20435+1953 STF2721 22 2.6 19
Show 20410+2001 HJ 2987 116 10.8 20
Show 20408+1956 RAO 23 Ca,Cb 227 0.2 21
Show 20408+1956 RAO 23 CD 303 20.3 21
Show 20408+1956 RAO 23 CE 327 29.4 21
Show 20408+1956 BUP 215 AB 25 69.4 21
Show 20408+1956 LDS1045 AC 184 125.2 21
Show 20419+1931 COU 226 AB 53 0.4 22
Show 20419+1931 COU 226 AC 337 13.9 22
Show 20436+1944 STF2722 306 7.5 23
Show 20423+1921 SHN 39 54 0.5 31
Show 20444+1945 CAR 2 82 0.2 32
Show 20412+2023 COU 423 162 0.4 35
Show 20448+1943 COU 424 239 5.5 39
Show 20393+2003 J 3103 224 5.5 40
Show 20398+1927 J 2604 141 2.2 43
Show 20396+2018 WFC 257 317 6.7 45
Show 20419+2043 BU 673 AB 292 3.9 52
Show 20419+2043 BU 673 AC 163 102.6 52
Show 20386+2007 COU 225 286 0.3 54
Show 20447+2032 BRT2484 5 2.9 54
Show 20402+2039 SCA 173 170 1.5 55
Show 20403+2040 TDT2461 356 0.5 55
Show 20433+1855 TDS1094 261 1.0 60
Show 20449+2041 J 1179 143 4.0 61
Show 20395+1857 HU 362 313 0.6 67
Show 20378+1936 J 3099 145 5.5 68
Show 20448+2051 A 172 219 2.9 71
Show 20406+2059 TDT2465 30 1.1 71
Show 20466+1915 COU 426 158 0.3 74
Show 20425+1837 TDT2486 76 0.7 76
Show 20467+1913 GWP2997 116 272.0 76
Show 20423+2109 BRT2480 232 4.7 78
Show 20471+1918 HO 141 AB 294 1.6 78
Show 20471+1918 HO 141 AC 64 22.6 78
Show 20385+1848 J 3102 96 6.4 79
Show 20381+2050 COU 328 155 1.0 83
Show 20467+2044 HJ 2999 AB 221 10.3 83
Show 20467+2044 TOB 197 AC 271 19.5 83
Show 20363+1924 KPP 475 113 4.8 88
Show 20472+1901 TDT2538 234 1.0 88
Show 20420+1821 J 193 81 5.5 91
Show 20383+2106 TDT2441 89 0.6 92
Show 20467+1846 YR 28 71 0.0 92
Show 20444+2119 A 171 325 5.4 93
Show 20365+2044 J 3096 AB 2 26.6 95
Show 20365+2044 J 3096 BC 10 8.5 95
Show 20488+1943 JNN 286 179 0.2 96

 
 
WDS 20422+1952 : COMPONENTS
 
 
  A B C
B pa=139.6°
sep=121.44"
 
C pa=112.3°
sep=90.05"
pa=4.6°
sep=58.54"
 
D pa=21.6°
sep=128.68"
pa=351.6°
sep=214.50"
pa=346.8°
sep=158.01"
 
 
20422+1952 A
 
 
Name HD 197274 Coord arcsec 2000 204209.58+195152.6 Mag 7.6 Spectral class K0 (yellow-orange)
PmRA 9.00 PmDE -6.0 SAO 106401 HIP 102170
Tycho2 1642-00803-1 HD 197274 BD BD+19 4489
Tycho2
Tycho2 1642-00803-1 Pflag RAmdeg 310.53990273 DEmdeg 19.86460479
PmRA 10.0 PmDE -6.0 E RAmdeg 5 E DEmdeg 6
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.05 EpDEm 1990.71
Num 12 Q RAmdeg 0.6 Q DEmdeg 0.8 Q pmRA 0.7
Q pmDE 0.9 BTmag 8.801 E BTmag 0.018 VTmag 7.599
E VTmag 0.011 Prox 999 TYC T HIP 102170
CCDM RAdeg 310.53987694 DEdeg 19.86461917 EpRA 1990 1.46
EpDE 1990 1.30 E RAdeg 5.1 E DEdeg 5.9 Posflg
Corr -0.1
SAO
SAO 106401 DelFlag RA1950 PmRA1950 0.0013
DE1950 PmDE1950 -0.017 Vmag 7.5 SpType K0
Double code Source 28 CatNum 8332 DM BD+19 4489
DMcomp BDsup HD 197274 M HD 0
GC RA1950rad 5.4100922 DE1950rad 0.34356479 PmRA2000 0.0014
PmDE2000 -0.019
Hipparcos
Catalog H HIP 102170 Proxy RAhms 20 42 09.57
DEdms +19 51 52.6 Vmag 7.51 VarFlag R Vmag H
RAdeg 310.54 DEdeg 19.8646 AstroRef Plx 6.29
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 197274 BD BD+19 4489
CD CP Dm number +19 4489 VIred 0.98
SpType K0 R SpType Coord arcsec 2000 204209.57+195152.6
Hipparcos 2
HIP 102170 Sn 5 So 0 Nc 1
RArad 5.4199433871 DErad 0.3467030412 Plx 5.06 PmRA 9.06
PmDE -6.12 E RArad 0.51 E DErad 0.42 E Plx 0.79
E pmRA 0.48 E pmDE 0.42 Hpmag 7.6746 E Hpmag 0.0013
SHp 0.013 VA 0 BV 1.015 E BV 0.011
VI 0.99
 
 
20422+1952 B
 
 
Coord arcsec 2000 204215.15+195020.1 Mag 11.68 PmRA -2.00 PmDE -2.0
Tycho2 1642-00064-1 Calc delta mag 4.08 Calc coord yes
Tycho2
Tycho2 1642-00064-1 Pflag RAmdeg 310.56453790 DEmdeg 19.83877375
PmRA 2.8 PmDE -3.2 E RAmdeg 104 E DEmdeg 112
E pmRA 2.2 E pmDE 2.3 EpRAm 1947.02 EpDEm 1940.09
Num 3 Q RAmdeg 2.5 Q DEmdeg 0.6 Q pmRA 2.5
Q pmDE 0.6 BTmag 13.036 E BTmag 0.327 VTmag 11.549
E VTmag 0.136 Prox 999 TYC HIP
CCDM RAdeg 310.56453056 DEdeg 19.83878139 EpRA 1990 1.43
EpDE 1990 1.35 E RAdeg 141.8 E DEdeg 164.2 Posflg
Corr -0.3
 
 
20422+1952 C
 
 
Coord arcsec 2000 204215.49+195118.4 Mag 12.76 PmRA -1.00 PmDE -9.0
Calc delta mag 5.16 Calc coord yes
 
 
20422+1952 D
 
 
Coord arcsec 2000 204212.93+195352.3 Mag 12.96 PmRA -9.00 PmDE -26.0
Calc delta mag 5.36 Calc coord yes