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Current system
20408+1956
RAO 23 CE


Nearby doubles
9' : 20410+2001
HJ 2987

20' : 20393+2003
J 3103

21' : 20422+1952
LBU 19AB

28' : 20419+1931
COU 226AB

29' : 20396+2018
WFC 257

30' : 20412+2023
COU 423

32' : 20398+1927
J 2604

34' : 20386+2007
COU 225

39' : 20423+1921
SHN 39

39' : 20435+1953
STF2721

43' : 20436+1944
STF2722

46' : 20402+2039
SCA 173

47' : 20403+2040
TDT2461

50' : 20378+1936
J 3099

52' : 20419+2043
BU 673AB

52' : 20444+1945
CAR 2

59' : 20448+1943
COU 424

60' : 20395+1857
HU 362

66' : 20406+2059
TDT2465

68' : 20447+2032
BRT2484

68' : 20381+2050
COU 328

70' : 20433+1855
TDS1094

70' : 20363+1924
KPP 475

71' : 20385+1848
J 3102

74' : 20449+2041
J 1179

78' : 20365+2044
J 3096AB



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.

20408+1956 RAO 23 CE

 
 
20h 40m 44.52s +19° 54' 03.1" P.A. 327.00 sep 29.4 mag 11.95,15.00
 
 
Coord 2000 20408+1956 Discov num RAO  23 Comp CE Coord arcsec 2000 20 40 44.52 +19 54 03.1
Date first 1997 Date last 2013 Obs 3
Pa first 335 Pa last 327.2 P.A. Now (θ) 327.2°
Sep first 32.9 Sep last 29.35 Sep. Now (ρ) 29.35"
Mag pri 11.95 Mag sec 15.00 delta mag (ΔM) 3.05 Spectral class
Pri motion ra +114 Sec motion ra -019
Pri motion dec +320 Sec motion dec -018
Notes N (See Notes)
rPM=1.069
This double is not physical.
 
 
20408+1956 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 197076 106373 20 40 45 +19 56 08 BUP 215 AB 1997 5 25 69.4 6.45 11.90 5.45
Show 106373 20 40 45 +19 56 08 LDS 1045 AC 2010 8 184 125.2 6.45 11.95 5.50
Show 20 40 45 +19 54 03 RAO 23 Ca,Cb 2021 6 227 0.2 11.95 12.00 0.05
Show 20 40 45 +19 54 03 RAO 23 CD 2013 3 303 20.3 11.95 14.60 2.65
Show 20 40 45 +19 54 03 RAO 23 CE 2013 3 327 29.4 11.95 15.00 3.05 <===
Sextuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus
 
 
WDS 20408+1956 RAO 23 CE : NOTES
 
 
discov_num notes refcode
LDS1045 AC: NLTT 49682/49681 Chm2004
 
 
REFERENCES
 
 
refcode metd author reference
Chm2004 E - Chaname, J. & Gould, A. 2004ApJ...601..289C
Chm2004 ApJ 601, 289, 2004
Chm2004 (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004 versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004 identical to discovery observations - predominantly close pairs - were assumed
Chm2004 not new observations, so not included in WDS. Similar concerns when primary and
Chm2004 secondary magnitudes or proper motions were the same.)
 
 
DISCOVERER
 
 
idgroup discov author
1 BUP Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913)
1 LDS Luyten p.m. catalog (from additional DD list)
1 RAO Robo AO (Palomar 60" AO project or KPNO 2.1m)
1 RAO Law, N.M., Morton, T., Baranec, C., Riddle, R., Ravichandran, G., Ziegler, C.,
1 RAO Johnson, J.A., Tendulkar, S.P., Bui, K., Burse, M.P., Das, H., Dekany, R., et al.
2 RAO Riddle, R.L., Tokovinin, A., Mason, B.D., Hartkopf, W.I., Roberts, L.C., Jr.,
2 RAO Baranec, C., Law, N.M., Bui, K., Burse, M.P., Das, H.K., Dekany, R.G.,
2 RAO Kulkarni, S., Punnadi, S., Ramaprakash, A.N., & Tendulkar, S.P.
7 RAO Baranec, C., Ziegler, C., Law, N.M., Morton, T., Riddle, R.L., Atkinson, D.,
7 RAO Schonhut, J., & Crepp, J.
8 RAO Ziegler, C., Law, N.M., Nicholas, M., Morton, T., Baranec, C., Riddle, R.L.,
8 RAO Atkinson, D., Baker, A., Roberts, S., & Ciardi, D.R.
9 RAO Schonhut-Stasik, J.S., Baranec, C., Huber, D., Ziegler, C., Atkinson, D., Gaidos,
9 RAO E., Law, N.M., Riddle, R., Hagelberg, J., van der Marel, N., & Hodapp, K.W.
10 RAO Hillenbrand, L.A., Zhang, C., Riddle, R.L., Baranec, C., Ziegler, C., Law, N.M. &
10 RAO Stauffer, J.
12 RAO Ziegler, C., Law, N.M., Baranec, C., Riddle, R., Duev, D.A., Howard, W.,
12 RAO Jensen-Clem, R., Kulkarni, S.R., Morton, T. & Salama, M.
13 RAO Ziegler, C., Law, N.M., Baranec, C., Morton, T., Riddle, R., De Lee, N., Huber, D.,
13 RAO Mahadevan, S. & Pepper, J.
14 RAO Bowler, B.P., Hinkley, S., Ziegler, C., Baranec, C., Gizis, J.E., Law, N.M., Liu,
14 RAO M.C., Shah, V.S., Shkolnik, E.L., Riaz, B. & Riddle, R.
15 RAO Schonhut-Stasik, J.S., Huber, D., Baranec, C., Lamman, C., Salama, M., Jensen-Clem,
15 RAO R., Duev, D.A., Riddle, R., Kulkarni, S.R. & Law, N.M.
16 RAO Lamman, C., Baranec, C., Berta-Thompson, Z.K., Law, N.M., Schonhut-Stasik, J.,
16 RAO Ziegler, C., Salama, M., Jensen-Clem, R., Duev, D.A., Riddle, R., Kulkarni, S.R.,
16 RAO Winters, J.G. & Irwin, J.M.
19 RAO Salama, M., Ou, J., Barance, C., Liu, M.C., Bowler, B.P., Barnes, P., Bonnet, M.,
19 RAO Chun, M., Duev, D.A., Goebel, S., Hall, D., Jacobson, S., Jensen-Clem, R., Law,
19 RAO N.M., Lockhart, C., Riddle, R., Situ, H., Warmbier, E. & Zhang, Z.
20 RAO Salama, M., Ziegler, C., Baranec, C., Liu, M.C., Law, N.M., Riddle, R., Henry,
20 RAO T.J., Winters, J.G., Jao, W.-C., Ou, J. & Ruiz, A.H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20408+1956 RAO 23 CE 2013 3 327 29.4 11.95 15.00 204044.52+195403.1

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

 
 
WDS 20408+1956 RAO 23 CE : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20408+1956 RAO 23 CE : MEASURES
 
 
No records found.

 
 
WDS 20408+1956 : VIRTUAL EYEPIECE
 
 

20408+1956 BUP 215A mag 6.45 Sp G5V 20408+1956 BUP 215B sep 68.7 P.A. 23.60 mag 11.9 Sp M2.5 20408+1956 RAO 23C sep 125.1 P.A. 184.00 mag 11.95 20408+1956 RAO 23Cb sep 125.2 P.A. 184.10 mag 12 20408+1956 RAO 23D sep 116.4 P.A. 192.30 mag 14.6 20408+1956 RAO 23E sep 102.9 P.A. 193.30 mag 15 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 20408+1956 : ALADIN DSS IMAGE @ 20h 40m 44.52s +19° 54' 03.1"
 
 
 
 
WDS 20408+1956 RAO 23 CE : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20408+1956 RAO 23Ca,Cb distance=1' 20408+1956 RAO 23CD distance=1' 20408+1956 RAO 23CE distance=1' 20408+1956 BUP 215AB distance=3' 20408+1956 LDS1045AC distance=3' 20410+2001 HJ 2987 distance=9' 20393+2003 J 3103 distance=20' 20422+1952 LBU 19AB distance=21' 20422+1952 LBU 19AC distance=21' 20422+1952 LBU 19AD distance=21' 20419+1931 COU 226AB distance=28' 20419+1931 COU 226AC distance=28' 20396+2018 WFC 257 distance=29' 20412+2023 COU 423 distance=30' 20398+1927 J 2604 distance=32' 20386+2007 COU 225 distance=34' 20423+1921 SHN 39 distance=39' 20435+1953 STF2721 distance=39' 20436+1944 STF2722 distance=43' 20402+2039 SCA 173 distance=46' 20403+2040 TDT2461 distance=47' 20378+1936 J 3099 distance=50' 20419+2043 BU 673AB distance=52' 20419+2043 BU 673AC distance=52' 20444+1945 CAR 2 distance=52' 20448+1943 COU 424 distance=59' 20395+1857 HU 362 distance=60' 20406+2059 TDT2465 distance=66' 20447+2032 BRT2484 distance=68' 20381+2050 COU 328 distance=68' 20433+1855 TDS1094 distance=70' 20363+1924 KPP 475 distance=70' 20385+1848 J 3102 distance=71' 20449+2041 J 1179 distance=74' 20365+2044 J 3096AB distance=78' 20365+2044 J 3096BC distance=78' 20423+2109 BRT2480 distance=79' 20383+2106 TDT2441 distance=80' 20448+2051 A 172 distance=81' 20425+1837 TDT2486 distance=82' 20376+1835 COU 224 distance=91' 20466+1915 COU 426 distance=92' 20407+2128 COU 127 distance=95' 20467+1913 GWP2997 distance=95' 20420+1821 J 193 distance=95' 20471+1918 HO 141AB distance=97' 20471+1918 HO 141AC distance=97' 20375+1828 GRV 363 distance=98' 20467+2044 HJ 2999AB distance=99' 20467+2044 TOB 197AC distance=99' 20411+2133 HJ 922 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 20408+1956 RAO 23 Ca,Cb 227 0.2 1
Show 20408+1956 RAO 23 CD 303 20.3 1
Show 20408+1956 RAO 23 CE 327 29.4 1
Show 20408+1956 BUP 215 AB 25 69.4 3
Show 20408+1956 LDS1045 AC 184 125.2 3
Show 20410+2001 HJ 2987 116 10.8 9
Show 20393+2003 J 3103 224 5.5 20
Show 20422+1952 LBU 19 AB 138 124.7 21
Show 20422+1952 LBU 19 AC 111 94.9 21
Show 20422+1952 LBU 19 AD 23 129.8 21
Show 20419+1931 COU 226 AB 53 0.4 28
Show 20419+1931 COU 226 AC 337 13.9 28
Show 20396+2018 WFC 257 317 6.7 29
Show 20412+2023 COU 423 162 0.4 30
Show 20398+1927 J 2604 141 2.2 32
Show 20386+2007 COU 225 286 0.3 34
Show 20423+1921 SHN 39 54 0.5 39
Show 20435+1953 STF2721 22 2.6 39
Show 20436+1944 STF2722 306 7.5 43
Show 20402+2039 SCA 173 170 1.5 46
Show 20403+2040 TDT2461 356 0.5 47
Show 20378+1936 J 3099 145 5.5 50
Show 20419+2043 BU 673 AB 292 3.9 52
Show 20419+2043 BU 673 AC 163 102.6 52
Show 20444+1945 CAR 2 82 0.2 52
Show 20448+1943 COU 424 239 5.5 59
Show 20395+1857 HU 362 313 0.6 60
Show 20406+2059 TDT2465 30 1.1 66
Show 20447+2032 BRT2484 5 2.9 68
Show 20381+2050 COU 328 155 1.0 68
Show 20433+1855 TDS1094 261 1.0 70
Show 20363+1924 KPP 475 113 4.8 70
Show 20385+1848 J 3102 96 6.4 71
Show 20449+2041 J 1179 143 4.0 74
Show 20365+2044 J 3096 AB 2 26.6 78
Show 20365+2044 J 3096 BC 10 8.5 78
Show 20423+2109 BRT2480 232 4.7 79
Show 20383+2106 TDT2441 89 0.6 80
Show 20448+2051 A 172 219 2.9 81
Show 20425+1837 TDT2486 76 0.7 82
Show 20376+1835 COU 224 322 0.4 91
Show 20466+1915 COU 426 158 0.3 92
Show 20407+2128 COU 127 48 6.1 95
Show 20467+1913 GWP2997 116 272.0 95
Show 20420+1821 J 193 81 5.5 95
Show 20471+1918 HO 141 AB 294 1.6 97
Show 20471+1918 HO 141 AC 64 22.6 97
Show 20375+1828 GRV 363 48 14.1 98
Show 20467+2044 HJ 2999 AB 221 10.3 99
Show 20467+2044 TOB 197 AC 271 19.5 99
Show 20411+2133 HJ 922 313 7.7 99

 
 
WDS 20408+1956 : COMPONENTS
 
 
  A B C Cb D
B pa=23.6°
sep=68.71"
 
C pa=184.0°
sep=125.11"
pa=190.9°
sep=191.24"
 
Cb pa=184.1°
sep=125.23"
pa=190.9°
sep=191.38"
pa=225.1°
sep=0.17"
 
D pa=192.3°
sep=116.40"
pa=196.5°
sep=184.27"
pa=304.6°
sep=19.48"
pa=305.1°
sep=19.45"
 
E pa=193.3°
sep=102.89"
pa=197.4°
sep=170.94"
pa=328.8°
sep=28.85"
pa=329.1°
sep=28.89"
pa=4.5°
sep=13.64"
 
 
20408+1956 A
 
 
Name HD 197076 Coord arcsec 2000 204045.14+195607.9 Mag 6.45 Spectral class G5V (yellow)
PmRA 118.00 PmDE 310.0 SAO 106373 HIP 102040
Tycho2 1642-00835-1 HD 197076 HR 7914 GC 28814
BD BD+19 4484
Tycho2
Tycho2 1642-00835-1 Pflag RAmdeg 310.18808113 DEmdeg 19.93552928
PmRA 118.2 PmDE 310.2 E RAmdeg 4 E DEmdeg 4
E pmRA 1.1 E pmDE 1.0 EpRAm 1991.16 EpDEm 1991.05
Num 15 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.6
Q pmDE 0.8 BTmag 7.194 E BTmag 0.015 VTmag 6.501
E VTmag 0.010 Prox 999 TYC T HIP 102040
CCDM RAdeg 310.18778028 DEdeg 19.93477694 EpRA 1990 1.39
EpDE 1990 1.27 E RAdeg 3.8 E DEdeg 4.0 Posflg
Corr -0.2
SAO
SAO 106373 DelFlag RA1950 PmRA1950 0.0087
DE1950 PmDE1950 0.306 Vmag 6.4 SpType G5
Double code Source 70 CatNum 28814 DM BD+19 4484
DMcomp BDsup HD 197076 M HD 0
GC 28814 RA1950rad 5.40393552 DE1950rad 0.34474625 PmRA2000 0.0087
PmDE2000 0.304
Hipparcos
Catalog H HIP 102040 Proxy RAhms 20 40 45.07
DEdms +19 56 05.2 Vmag 6.43 VarFlag R Vmag H
RAdeg 310.188 DEdeg 19.9348 AstroRef Plx 47.65
CCDM 20408+1956 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 197076 BD BD+19 4484
CD CP Dm number +19 4484 VIred 0.71
SpType G5V R SpType Coord arcsec 2000 204045.07+195605.2
Hipparcos 2
HIP 102040 Sn 5 So 0 Nc 1
RArad 5.4137980527 DErad 0.3479275031 Plx 47.74 PmRA 118.14
PmDE 312.63 E RArad 0.31 E DErad 0.25 E Plx 0.48
E pmRA 0.3 E pmDE 0.26 Hpmag 6.5617 E Hpmag 0.0008
SHp 0.007 VA 0 BV 0.611 E BV 0.009
VI 0.71
CCDM
Ccdm 20408+1956 RComp Comp A Note1
Note2 Discov num DRAs -2.89 DDEs 8.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 6.4 Sp G5 PmNote *
PmRA 119 PmDE 317 Dm number +19 4484 Cat1 BD
Name2 +19 2072 Cat2 AGK2/3 HD 197076 M HD
ADS BDS M ADS BDS N IDS IDS 20362N1934A
HIC 102040
 
 
20408+1956 B
 
 
Coord arcsec 2000 204047.09+195710.9 Mag 11.9 Spectral class M2.5 (red) Calc delta mag 5.45
Calc coord yes
CCDM
Ccdm 20408+1956 RComp Comp B Note1
Note2 Discov num BUP DRAs DDEs
R dRAs Year 1924 Theta 025 Rho 93.7
Obs 2 Vmag 11.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20362N1934B
HIC
 
 
20408+1956 C
 
 
Coord arcsec 2000 204044.52+195403.1 Coord calc 204044.52+195403.1 Mag 11.95 PmRA 114.00
PmDE 320.0 Calc delta mag 5.5
CCDM
Ccdm 20408+1956 RComp Comp C Note1
Note2 Discov num LDS1045 DRAs DDEs
R dRAs Year 1936 Theta 175 Rho 125.0
Obs 1 Vmag 13.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20363N1934B
HIC
 
 
20408+1956 Cb
 
 
Coord arcsec 2000 204044.51+195403.0 Mag 12 Calc delta mag 5.55 Calc coord yes
 
 
20408+1956 D
 
 
Coord arcsec 2000 204043.38+195414.2 Mag 14.6 PmRA -16.00 PmDE -15.0
Calc delta mag 8.15 Calc coord yes
 
 
20408+1956 E
 
 
Coord arcsec 2000 204043.46+195427.8 Mag 15 PmRA -19.00 PmDE -18.0
Calc delta mag 8.55 Calc coord yes