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Doubles in session


Current system
15462-2804
CHR 50 Aa,Ab


Nearby doubles
19' : 15475-2755
GAT 18AB

23' : 15476-2816
TDS9626

27' : 15455-2740
LDS4589

28' : 15455-2830
CPO 442

32' : 15452-2832
RST1862

43' : 15431-2759
SEE 246

46' : 15436-2834
SKF2046

47' : 15437-2836
TDS9602

53' : 15484-2847
TOK 596

53' : 15488-2842
LDS5846

53' : 15450-2714
RST1861

54' : 15441-2850
B 298

59' : 15421-2826
RST1858

69' : 15474-2910
SHN 204

83' : 15418-2903
RST1856

85' : 15399-2803
B 2790

92' : 15396-2739
BU 121

92' : 15414-2910
RST1855AB

96' : 15411-2656
KSA 72AB

101' : 15500-2636
SWR 182

103' : 15436-2940
UC 3051

106' : 15394-2710
RST1854AB

107' : 15542-2746
B 2795AB

110' : 15507-2632
HDS2232

111' : 15535-2858
LDS5849

116' : 15456-2959
UC 3055



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.

15462-2804 CHR 50 Aa,Ab

 
 
15h 46m 12.89s -28° 03' 41.1" P.A. 287.00 sep 0.1 mag 6.61, Sp F2IV dist. 71.12 pc (231.99 l.y.)
 
 
Coord 2000 15462-2804 Discov num CHR  50 Comp Aa,Ab Coord arcsec 2000 15 46 12.89 -28 03 41.1
Date first 1983 Date last 2006 Obs 4
Pa first 71 Pa last 286.8 P.A. Now (θ) 286.8°
Sep first 0.2 Sep last 0.131 Sep. Now (ρ) 0.131"
Mag pri 6.61 Mag sec delta mag (ΔM) Spectral class F2IV (yellow-white)
Pri motion ra -060 Sec motion ra
Pri motion dec -019 Sec motion dec
Notes N X (See Notes, Dubious double)
Nature of this double is uncertain.
 
 
15462-2804 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 183772 15 46 13 -28 03 41 CHR 50 Aa,Ab 2006 4 287 0.1 6.61 <===
Show HD 140722 183772 15 46 13 -28 03 41 BU 620 AB 2021 65 355 0.7 7.58 7.03 0.55 Y
Show 183772 15 46 13 -28 03 41 HJ 4803 AC 2016 26 213 50.5 7.58 8.97 1.39
Show 15 46 11 -28 04 23 KOH 49 Ca,Cb 2021 10 187 0.1 8.00 8.70 0.70 Y
Quintuple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Libra SAO 183772 HIP 77235 Tycho2 6786-02143-1
Gaia DR2 6233447046421213056 HD 140722 HR 5856 ADS 9775
CD CD-2710550 CP CP-27 5250 Distance 71.12 Distance ly 231.99
 
 
WDS 15462-2804 CHR 50 Aa,Ab : NOTES
 
 
discov_num notes refcode
HU 620 The binary companion B discovered by S.W. Burnham in 1878 moved since Bu_1879
then by +6deg in angle, now at 0.63" separation. Considering this
slow motion, the pair is likely much wider than it seems, being seen
in projection. The sub-system CHR 50 Aa,Ab was discovered by speckle
interferometry in 1983.42 at 0.20" (McAlister et al. 1987). A total of Mca1987b
four measures are listed, the last one in 2006.19. Curiously, the wide Msn2009
pair AB was measured with speckle at 4-m telescopes several times (in
1985.50, 1989.31, 1991.39) without resolving the sub-system. We Mca1990
measured the AB and found no trace of CHR 50 in three runs at SOAR in Hrt1993
2009-2012. The separation of CHR 50 implies an orbital period of 50 Tok2012b
yr. Yet the few speckle resolutions show a fast motion or a random
scatter. If the sub-system CHR 50 were real, we would expect it to
cause some wobble in the motion of AB, but no such signal is seen. Tok2012b
CHR 50 The measures show a large scatter and there are many observations of Tok2010b
the wider AB without a measure of this close companion. The nature of
the motion or even the reality of this pair is in question. A "ghost".
 
 
REFERENCES
 
 
refcode metd author reference
Bu_1879 Ma j Burnham, S.W. 1879MmRAS..44..141B
Bu_1879 MemRAS 44, 141, 1879
Hrt1993 Sc j Hartkopf, W.I., Mason, B.D., Barry, D.J., McAlister, H.A., Bagnuolo, W.G., & 1993AJ....106..352H
Hrt1993 Prieto, C.M.
Hrt1993 AJ 106, 352, 1993
McA1987b Sc j McAlister, H.A., Hartkopf, W.I., Hutter, D.J., & Franz, O.G. 1987AJ.....93..688M
McA1987b AJ 93, 688, 1987
McA1990 Sc j McAlister, H.A., Hartkopf, & Franz, O.G. 1990AJ.....99..965M
McA1990 AJ 99, 965, 1990
Msn2009 S+ j Mason, B.D., Hartkopf, W.I., Gies, D.R., Henry, T.J., & Helsel, J.W. 2009AJ....137.3358M
Msn2009 +orb AJ 137, 3358, 2009
Msn2009 +lin
Tok2010b S - Tokovinin, A. ...................
Tok2010b private communication
Tok2012b S j Tokovinin, A. 2012AJ....144...56T
Tok2012b +orb AJ 144, 56, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
181 HJ Herschel, J.F.W.
230 KOH Koehler, R. & Leinert, Ch.
240 KOH Koehler, R., Petr-Gotzens, M.G., McCaughrean, M.J., Bouvier, J., Duchene, G.,
240 KOH Quirrenbach, A., & Zinnecker, H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15462-2804 CHR 50 Aa,Ab 2006 4 287 0.1 6.61   F2IV 154612.89-280341.1

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

 
 
WDS 15462-2804 CHR 50 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15462-2804 CHR 50 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 15462-2804 : VIRTUAL EYEPIECE
 
 

15462-2804 BU 620A mag 7.58 Sp F2IV 15462-2804 CHR 50Ab sep 0.1 P.A. 288.90 15462-2804 BU 620B sep 0.7 P.A. 355.10 mag 7.03 15462-2804 KOH 49C sep 50.9 P.A. 214.20 mag 8 15462-2804 KOH 49Cb sep 51.0 P.A. 214.10 mag 8.7 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 15462-2804 : ALADIN DSS IMAGE @ 15h 46m 12.89s -28° 03' 41.1"
 
 
 
 
WDS 15462-2804 CHR 50 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15462-2804 CHR 50Aa,Ab distance=0' 15462-2804 KOH 49Ca,Cb distance=1' 15475-2755 GAT 18AB distance=19' 15475-2755 GAT 18AC distance=19' 15475-2755 TSN 177CD distance=21' 15476-2816 TDS9626 distance=23' 15455-2740 LDS4589 distance=27' 15455-2830 CPO 442 distance=28' 15452-2832 RST1862 distance=32' 15431-2759 SEE 246 distance=43' 15436-2834 SKF2046 distance=46' 15437-2836 TDS9602 distance=47' 15484-2847 TOK 596 distance=53' 15488-2842 LDS5846 distance=53' 15450-2714 RST1861 distance=53' 15441-2850 B 298 distance=54' 15421-2826 RST1858 distance=59' 15474-2910 SHN 204 distance=69' 15418-2903 RST1856 distance=83' 15399-2803 B 2790 distance=85' 15396-2739 BU 121 distance=92' 15414-2910 RST1855AB distance=92' 15411-2656 KSA 72AB distance=96' 15411-2656 MET 64AC distance=96' 15411-2656 LAF 79AD distance=96' 15411-2656 LAF 79AE distance=96' 15411-2656 LAF 79AF distance=96' 15411-2656 LAF 79AG distance=96' 15411-2656 LAF 79AH distance=96' 15500-2636 SWR 182 distance=101' 15436-2940 UC 3051 distance=103' 15527-2705 USD 89Aa,Ab distance=105' 15394-2710 RST1854AB distance=106' 15394-2710 MET 63AC distance=106' 15394-2710 MET 63AD distance=106' 15542-2746 TDS9685Aa,Ab distance=107' 15542-2746 B 2795AB distance=107' 15507-2632 HDS2232 distance=110' 15535-2858 LDS5849 distance=111' 15456-2959 UC 3055 distance=116' 15545-2720 LAF 83AB distance=119' 15545-2720 LAF 83AC distance=119' 15532-2920 UC 3078 distance=119' 15383-2901 SWR 179 distance=120' 15429-2613 B 297AB distance=120' 15370-2808 I 1271 distance=122' 15370-2748 BRT3022 distance=125' 15368-2751 BRT3021 distance=126' 15391-2928 UC 3036 distance=126' 15541-2920 KOH 53AB distance=129' 15541-2920 KSA 73AC distance=129' 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 15462-2804 CHR 50 Aa,Ab 287 0.1
Show 15462-2804 BU 620 AB 355 0.7
Show 15462-2804 HJ 4803 AC 213 50.5
Show 15462-2804 KOH 49 Ca,Cb 187 0.1 1
Show 15475-2755 GAT 18 AB 124 1.3 19
Show 15475-2755 GAT 18 AC 37 111.9 19
Show 15475-2755 TSN 177 CD 164 0.1 21
Show 15476-2816 TDS9626 256 0.9 23
Show 15455-2740 LDS4589 330 51.9 27
Show 15455-2830 CPO 442 358 11.4 28
Show 15452-2832 RST1862 352 4.5 32
Show 15431-2759 SEE 246 314 13.4 43
Show 15436-2834 SKF2046 249 48.3 46
Show 15437-2836 TDS9602 322 2.4 47
Show 15484-2847 TOK 596 309 385.6 53
Show 15488-2842 LDS5846 158 41.0 53
Show 15450-2714 RST1861 115 0.4 53
Show 15441-2850 B 298 88 2.1 54
Show 15421-2826 RST1858 166 1.0 59
Show 15474-2910 SHN 204 -1 0.0 69
Show 15418-2903 RST1856 208 2.0 83
Show 15399-2803 B 2790 132 8.9 85
Show 15396-2739 BU 121 284 2.0 92
Show 15414-2910 RST1855 AB 66 2.6 92
Show 15411-2656 KSA 72 AB 82 6.3 96
Show 15411-2656 MET 64 AC 225 5.9 96
Show 15411-2656 LAF 79 AD 298 4.6 96
Show 15411-2656 LAF 79 AE 30 5.2 96
Show 15411-2656 LAF 79 AF 311 6.0 96
Show 15411-2656 LAF 79 AG 353 8.0 96
Show 15411-2656 LAF 79 AH 110 9.6 96
Show 15500-2636 SWR 182 256 25.0 101
Show 15436-2940 UC 3051 215 12.1 103
Show 15527-2705 USD 89 Aa,Ab 45 0.7 105
Show 15394-2710 RST1854 AB 3 0.3 106
Show 15394-2710 MET 63 AC 62 8.8 106
Show 15394-2710 MET 63 AD 124 11.2 106
Show 15542-2746 TDS9685 Aa,Ab 114 0.6 107
Show 15542-2746 B 2795 AB 227 10.0 107
Show 15507-2632 HDS2232 197 0.3 110
Show 15535-2858 LDS5849 253 132.7 111
Show 15456-2959 UC 3055 5 32.6 116
Show 15545-2720 LAF 83 AB 297 5.6 119
Show 15545-2720 LAF 83 AC 175 6.9 119
Show 15532-2920 UC 3078 10 40.5 119
Show 15383-2901 SWR 179 78 15.4 120
Show 15429-2613 B 297 AB 256 7.7 120
Show 15370-2808 I 1271 151 2.0 122
Show 15370-2748 BRT3022 198 5.4 125
Show 15368-2751 BRT3021 72 4.8 126
Show 15391-2928 UC 3036 330 46.7 126

 
 
WDS 15462-2804 : COMPONENTS
 
 
  A Ab B C
Ab pa=288.9°
sep=0.12"
 
B pa=355.1°
sep=0.65"
pa=5.2°
sep=0.61"
 
C pa=214.2°
sep=50.89"
pa=214.1°
sep=50.86"
pa=213.7°
sep=51.40"
 
Cb pa=214.1°
sep=50.95"
pa=214.0°
sep=50.91"
pa=213.7°
sep=51.45"
pa=186.4°
sep=0.06"
 
 
15462-2804 A
 
 
Name HD 140722 Coord arcsec 2000 154612.89-280341.1 Mag 7.58 Spectral class F2IV (yellow-white)
PmRA -60.00 PmDE -19.0 SAO 183772 HIP 77235
HD 140722 HR 5856 GC 21182 CD CD-2710550
CP CP-27 5250
SAO
SAO 183772 DelFlag RA1950 PmRA1950 -0.005
DE1950 PmDE1950 -0.029 Vmag 6.5 SpType A5
Double code Source 70 CatNum 21182 DM CD-2710550
DMcomp BDsup HD 140722 M HD 0
GC 21182 RA1950rad 4.11532475 DE1950rad -0.48705535 PmRA2000 -0.0051
PmDE2000 -0.026
Hipparcos
Catalog H HIP 77235 Proxy H RAhms 15 46 12.89
DEdms -28 03 41.1 Vmag 6.49 VarFlag R Vmag H
RAdeg 236.554 DEdeg -28.0614 AstroRef B Plx 14.69
CCDM 15462-2804 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP BA
Theta 351 Rho 0.579 HD 140722 BD
CD CD-2710550 CP CP-27 5250 Dm number -2710550 VIred 0.39
SpType F0V R SpType Coord arcsec 2000 154612.89-280341.1
Hipparcos 2
HIP 77235 Sn 15 So 3 Nc 2
RArad 4.1286413533 DErad -0.4897643012 Plx 14.06 PmRA -59.69
PmDE -24.56 E RArad 1.07 E DErad 0.84 E Plx 1.08
E pmRA 1.58 E pmDE 1.87 Hpmag 6.5753 E Hpmag 0.0008
SHp 0.008 VA 0 BV 0.332 E BV 0.007
VI 0.39
CCDM
Ccdm 15462-2804 RComp Comp A Note1
Note2 Discov num DRAs 1.01 DDEs 18.6
R dRAs 41 Year Theta Rho
Obs 3 Vmag 7.2 Sp A5 PmNote *
PmRA -55 PmDE -22 Dm number -2710550 Cat1 CD
Name2 183772 Cat2 SAO HD 140722 M HD
ADS BDS A 9775 M ADS BDS N IDS IDS 15401S2745A
HIC 77235
 
 
15462-2804 Ab
 
 
Coord arcsec 2000 154612.88-280341.1 Calc delta mag 6.61 Calc coord yes
 
 
15462-2804 B
 
 
Coord arcsec 2000 154612.89-280340.5 Mag 7.03 PmRA -60.00 PmDE -19.0
Tycho2 6786-02143-1 Calc delta mag 0.42 Calc coord yes
Tycho2
Tycho2 6786-02143-1 Pflag RAmdeg 236.55355168 DEmdeg -28.06141620
PmRA -60.4 PmDE -18.7 E RAmdeg 4 E DEmdeg 5
E pmRA 0.8 E pmDE 0.9 EpRAm 1991.23 EpDEm 1990.78
Num 18 Q RAmdeg 1.8 Q DEmdeg 1.4 Q pmRA 1.9
Q pmDE 1.4 BTmag 6.963 E BTmag 0.015 VTmag 6.611
E VTmag 0.010 Prox 506 TYC T HIP 77235
CCDM AB RAdeg 236.55370639 DEdeg -28.06137194 EpRA 1990 1.85
EpDE 1990 1.46 E RAdeg 3.9 E DEdeg 4.7 Posflg P
Corr 0.1
CCDM
Ccdm 15462-2804 RComp Comp B Note1
Note2 Discov num BU 620 DRAs DDEs
R dRAs Year 1878 Theta 164 Rho 0.5
Obs 21 Vmag 7.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 9775 M ADS BDS N IDS IDS 15401S2745B
HIC 77235
 
 
15462-2804 C
 
 
Coord arcsec 2000 154610.73-280423.2 Coord calc 154611.08-280423.7 Mag 8 Mag composta 8.97
PmRA -66.00 PmDE -17.0 Tycho2 6786-00811-1 Calc delta mag 1.39
Tycho2
Tycho2 6786-00811-1 Pflag RAmdeg 236.54472463 DEmdeg -28.07313653
PmRA -66.3 PmDE -17.0 E RAmdeg 11 E DEmdeg 15
E pmRA 1.5 E pmDE 1.7 EpRAm 1989.72 EpDEm 1989.17
Num 9 Q RAmdeg 1.6 Q DEmdeg 1.7 Q pmRA 1.6
Q pmDE 1.7 BTmag 9.717 E BTmag 0.028 VTmag 8.971
E VTmag 0.020 Prox 506 TYC T HIP
CCDM RAdeg 236.54489306 DEdeg -28.07309278 EpRA 1990 1.85
EpDE 1990 1.51 E RAdeg 11.5 E DEdeg 16.4 Posflg
Corr 0.4
 
 
15462-2804 Cb
 
 
Coord arcsec 2000 154610.73-280423.3 Mag 8.7 PmRA -66.00 PmDE -17.0
Calc delta mag 2.09 Calc coord yes