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Current system
23266+4520
GIC 192 AB
HD 220821


Nearby doubles
10' : 23258+4521
HJL1111AB

19' : 23260+4503
A 790

22' : 23249+4530
TDT4027

35' : 23244+4546
A 788AB

36' : 23279+4447
TDT4049

43' : 23231+4501
SCA9004

44' : 23244+4444
UC 4944

44' : 23235+4548
STF3010AB

44' : 23286+4600
TDT4053

49' : 23287+4604
BVD 287

56' : 23220+4456
TDT4000

56' : 23215+4534
COU2246

61' : 23304+4606
TDT4073

61' : 23288+4617
TDT4054

64' : 23276+4624
HJ 1883

65' : 23237+4425
COU1994

65' : 23210+4456
LDS5074

65' : 23215+4445
J 861

68' : 23313+4607
KPP2694

71' : 23328+4455
GRV 671

72' : 23313+4613
POP 141AB

76' : 23215+4429
KPP 528

77' : 23331+4556
OSO 198AB

77' : 23338+4508
A 791

79' : 23236+4632
TDT4016

89' : 23250+4648
J 862



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.

23266+4520 GIC 192 AB (HD 220821)

 
 
23h 26m 40.35s +45° 20' 17.3" P.A. 325.00 sep 56.4 mag 7.45,10.34 Sp G0 dist. 36.28 pc (118.35 l.y.)
 
 
Coord 2000 23266+4520 Discov num GIC 192 Comp AB Coord arcsec 2000 23 26 40.35 +45 20 17.3
Date first 1894 Date last 2015 Obs 12
Pa first 19 Pa last 325.3 P.A. Now (θ) 325.3°
Sep first 64.1 Sep last 56.43 Sep. Now (ρ) 56.43"
Mag pri 7.45 Mag sec 10.34 delta mag (ΔM) 2.89 Spectral class G0 (yellow)
Pri motion ra +437 Sec motion ra -005
Pri motion dec +109 Sec motion dec -004
Notes N L (See Notes, Linear solution)
rPM=1.013
This double is not physical.
 
 
23266+4520 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 53025 23 26 40 +45 20 17 YR 17 Aa,Ab 2018 28 228 0.5 7.50 10.60 3.10
Show HD 220821 53025 23 26 40 +45 20 17 GIC 192 AB 2015 12 325 56.4 7.45 10.34 2.89 <===
Show 53025 23 26 40 +45 20 17 GIC 192 AC 2015 10 353 57.4 7.45 10.93 3.48
Show 23 26 38 +45 21 06 HJ 1867 BC 2015 16 67 26.8 10.34 10.93 0.59
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 220821 Constellation Andromeda SAO 53025 HIP 115715
Tycho2 3637-00984-1 HD 220821 GC 32616 BD BD+44 4419
Distance 36.28 Distance ly 118.35
 
 
WDS 23266+4520 GIC 192 AB (HD 220821) : NOTES
 
 
discov_num notes refcode
GIC 192 The pair HJ 1867 were improperly precessed before, so observers may
have been looking in the wrong patch of sky. Component A of this
optical triple has a very high proper motion. The proper motion of
component B is quite small. The proper motion of component C is
unknown. At some point during the 20th century, the B and C components
were in approximately the same position, which probably contributed to
the lack of early epoch AC measures. It is possible that some of the
early AB measures may have actually been measures of A,BC. A detailed
analysis of this system is in Bur2003. AB = G216-044/G216-043.
AB: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
AC: NLTT 56881/56879 Chm2004
YR 17 Aa,Ab: Rectilinear solution by Hartkopf & Mason (2013). Hrt2013b
GIC 192 AB: Rectilinear solution by Hurowitz et al. (2014). USN2014b
 
 
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.)
Hrt2013b orb - Hartkopf, W.I. & Mason, B.D. 2013IAUDS.181....1H
Hrt2013b +lin Inf. Circ. 181, 1, 2013
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
USN2014b lin - Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. 2014IAUDS.183....1H
USN2014b Inf. Circ. 183, 1, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 GIC Giclas, H., Burnham, R. & Thomas, N.
6 HJ Herschel, J.F.W.
55 YR Yale-Rochester (from additional DD list - see HOR)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
23266+4520 GIC 192 AB 2001 6 331 51.0 7.36 9.83 G0 N D 232640.36+452017.3
23266+4520 GIC 192 AB 2008 7 330 55.1 7.36 9.83 G0 N D 232640.36+452017.3
23266+4520 GIC 192 AB 2013 10 326 56.3 7.45 10.34 G0 NL 232640.35+452017.3
23266+4520 GIC 192 AB 2015 11 325 56.4 7.45 10.34 G0 NL 232640.35+452017.3

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

 
 
WDS 23266+4520 GIC 192 AB (HD 220821) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 23266+4520 GIC 192 AB (HD 220821) : MEASURES
 
 
No records found.

 
 
WDS 23266+4520 (HD 220821) : VIRTUAL EYEPIECE
 
 

23266+4520 GIC 192A mag 7.45 Sp G0 23266+4520 YR 17Ab sep 0.4 P.A. 218.20 mag 10.6 23266+4520 HJ 1867B sep 54.5 P.A. 332.40 mag 10.34 Sp M3.5III 23266+4520 GIC 192C sep 57.2 P.A. 354.80 mag 10.93 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 23266+4520 (HD 220821) : ALADIN DSS IMAGE @ 23h 26m 40.35s +45° 20' 17.3"
 
 
 
 
WDS 23266+4520 GIC 192 AB (HD 220821) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

23266+4520 GIC 192AB distance=0' 23266+4520 HJ 1867BC distance=1' 23258+4521 RAO 75CD distance=8' 23258+4521 RAO 75BC distance=8' 23258+4521 HJL1111AB distance=10' 23260+4503 A 790 distance=19' 23249+4530 TDT4027 distance=22' 23244+4546 A 788AB distance=35' 23244+4546 A 788AC distance=35' 23279+4447 TDT4049 distance=36' 23231+4501 SCA9004 distance=43' 23235+4548 STF3010BC distance=43' 23244+4444 UC 4944 distance=44' 23235+4548 STF3010AB distance=44' 23286+4600 TDT4053 distance=44' 23287+4604 BVD 287 distance=49' 23220+4456 TDT4000 distance=56' 23215+4534 COU2246 distance=56' 23304+4606 TDT4073 distance=61' 23288+4617 TDT4054 distance=61' 23276+4624 HJ 1883 distance=64' 23237+4425 COU1994 distance=65' 23210+4456 LDS5074 distance=65' 23215+4445 J 861 distance=65' 23313+4607 KPP2694 distance=68' 23328+4455 GRV 671 distance=71' 23313+4613 POP 141AB distance=72' 23313+4613 SKF2556AC distance=72' 23215+4429 KPP 528 distance=76' 23331+4556 OSO 198AB distance=77' 23331+4556 OSO 198AC distance=77' 23331+4556 OSO 198AD distance=77' 23338+4508 A 791 distance=77' 23236+4632 TDT4016 distance=79' 23250+4648 J 862 distance=89' 23295+4644 UC 291 distance=90' 23319+4408 BVD 288 distance=91' 23255+4347 COU1995 distance=95' 23245+4653 BVD 286 distance=96' 23265+4659 COU2344 distance=97' 23207+4407 STF3004 distance=97' 23190+4428 SMA 187 distance=97' 23231+4344 ES 1351 distance=103' 23210+4352 UC 4927 distance=108' 23320+4349 STF3024 distance=108' 23333+4643 COU2247 distance=109' 23256+4710 TDT4032 distance=110' 23291+4708 LDS6035 distance=112' 23209+4344 COU1993 distance=114' 23293+4329 TDT4062 distance=115' 23232+4711 TDT4011 distance=117' 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 23266+4520 YR 17 Aa,Ab 228 0.5
Show 23266+4520 GIC 192 AB 325 56.4
Show 23266+4520 GIC 192 AC 353 57.4
Show 23266+4520 HJ 1867 BC 67 26.8 1
Show 23258+4521 RAO 75 CD 280 0.6 8
Show 23258+4521 RAO 75 BC 64 13.4 8
Show 23258+4521 HJL1111 AB 43 185.5 10
Show 23260+4503 A 790 296 3.5 19
Show 23249+4530 TDT4027 141 3.2 22
Show 23244+4546 A 788 AB 270 4.6 35
Show 23244+4546 A 788 AC 42 12.5 35
Show 23279+4447 TDT4049 42 0.8 36
Show 23231+4501 SCA9004 107 79.5 43
Show 23235+4548 STF3010 BC 133 10.3 43
Show 23244+4444 UC 4944 242 10.2 44
Show 23235+4548 STF3010 AB 131 25.8 44
Show 23286+4600 TDT4053 227 2.0 44
Show 23287+4604 BVD 287 133 8.5 49
Show 23220+4456 TDT4000 159 0.9 56
Show 23215+4534 COU2246 90 0.2 56
Show 23304+4606 TDT4073 195 0.5 61
Show 23288+4617 TDT4054 331 0.4 61
Show 23276+4624 HJ 1883 145 19.1 64
Show 23237+4425 COU1994 45 1.1 65
Show 23210+4456 LDS5074 157 39.9 65
Show 23215+4445 J 861 240 3.8 65
Show 23313+4607 KPP2694 343 3.9 68
Show 23328+4455 GRV 671 300 32.1 71
Show 23313+4613 POP 141 AB 256 3.4 72
Show 23313+4613 SKF2556 AC 261 6.9 72
Show 23215+4429 KPP 528 221 4.7 76
Show 23331+4556 OSO 198 AB 59 13.9 77
Show 23331+4556 OSO 198 AC 74 16.7 77
Show 23331+4556 OSO 198 AD 111 18.4 77
Show 23338+4508 A 791 167 1.2 77
Show 23236+4632 TDT4016 322 0.6 79
Show 23250+4648 J 862 18 3.4 89
Show 23295+4644 UC 291 5 11.2 90
Show 23319+4408 BVD 288 70 33.3 91
Show 23255+4347 COU1995 126 0.2 95
Show 23245+4653 BVD 286 251 22.6 96
Show 23265+4659 COU2344 107 0.6 97
Show 23207+4407 STF3004 177 13.6 97
Show 23190+4428 SMA 187 264 13.0 97
Show 23231+4344 ES 1351 143 3.4 103
Show 23210+4352 UC 4927 216 37.8 108
Show 23320+4349 STF3024 309 4.9 108
Show 23333+4643 COU2247 72 0.9 109
Show 23256+4710 TDT4032 76 0.5 110
Show 23291+4708 LDS6035 42 19.4 112
Show 23209+4344 COU1993 34 1.9 114

 
 
WDS 23266+4520 : COMPONENTS
 
 
  A Ab B
Ab pa=218.2°
sep=0.40"
 
B pa=332.4°
sep=54.48"
pa=332.8°
sep=54.64"
 
C pa=354.8°
sep=57.16"
pa=355.1°
sep=57.45"
pa=66.7°
sep=21.78"
 
 
23266+4520 A
 
 
Name HD 220821 Coord arcsec 2000 232640.35+452017.3 Mag 7.45 Spectral class G0 (yellow)
PmRA 437.00 PmDE 109.0 SAO 53025 HIP 115715
Tycho2 3637-00984-1 HD 220821 GC 32616 BD BD+44 4419
Tycho2
Tycho2 3637-00984-1 Pflag RAmdeg 351.66814632 DEmdeg 45.33814545
PmRA 434.6 PmDE 110.7 E RAmdeg 5 E DEmdeg 4
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.23 EpDEm 1991.45
Num 11 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.3
Q pmDE 0.9 BTmag 8.145 E BTmag 0.016 VTmag 7.446
E VTmag 0.010 Prox 999 TYC T HIP 115715
CCDM RAdeg 351.66670056 DEdeg 45.33788972 EpRA 1990 1.58
EpDE 1990 1.68 E RAdeg 4.6 E DEdeg 4.3 Posflg
Corr -0.1
SAO
SAO 53025 DelFlag RA1950 PmRA1950 0.0106
DE1950 PmDE1950 0.103 Vmag 7.4 SpType G0
Double code Source 70 CatNum 32616 DM BD+44 4419
DMcomp BDsup HD 220821 M HD 0
GC 32616 RA1950rad 6.12708166 DE1950rad 0.78646824 PmRA2000 0.0108
PmDE2000 0.098
Hipparcos
Catalog H HIP 115715 Proxy RAhms 23 26 39.99
DEdms +45 20 16.4 Vmag 7.36 VarFlag R Vmag H
RAdeg 351.667 DEdeg 45.3379 AstroRef Plx 28.53
CCDM 23267+4521 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 220821 BD BD+44 4419
CD CP Dm number +44 4419 VIred 0.71
SpType G0 R SpType Coord arcsec 2000 232639.99+452016.4
Hipparcos 2
HIP 115715 Sn 5 So 0 Nc 1
RArad 6.1377408187 DErad 0.7912952072 Plx 27.56 PmRA 437.12
PmDE 108.87 E RArad 1.24 E DErad 1.25 E Plx 1.04
E pmRA 1.66 E pmDE 1.59 Hpmag 7.4992 E Hpmag 0.0009
SHp 0.013 VA 0 BV 0.644 E BV 0.004
VI 0.71
 
 
23266+4520 Ab
 
 
Coord arcsec 2000 232640.33+452017.0 Mag 10.6 Calc delta mag 3.1 Calc coord yes
 
 
23266+4520 B
 
 
Coord arcsec 2000 232637.96+452105.6 Coord calc 232637.96+452105.6 Mag 10.34 Spectral class M3.5III (red)
PmRA -5.00 PmDE -4.0 Calc delta mag 2.84
 
 
23266+4520 C
 
 
Coord arcsec 2000 232639.86+452114.2 Mag 10.93 PmRA 435.00 PmDE 111.0
Calc delta mag 3.43 Calc coord yes