stampa
Login

Preset columns are boring you? Create your own custom set!
Register here!


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
21223+5734
A 764 AB
HD 203802


Nearby doubles
18' : 21203+5737
MLB 87

21' : 21249+5734
A 766

27' : 21246+5715
HEI 881

40' : 21202+5809
STI2566

43' : 21178+5756
STI2564

45' : 21275+5747
HJ 1648

47' : 21165+5727
STI2562

48' : 21256+5814
BU 1141

57' : 21287+5710
BU 1142

58' : 21277+5656
HJ 1649

64' : 21220+5631
CRB 210

64' : 21302+5743
TDT3000

69' : 21193+5837
STF2790AB

70' : 21199+5841
HLM 39

70' : 21147+5702
HJ 1630

74' : 21274+5835
MLR 435

75' : 21173+5837
BU 1140AB

76' : 21314+5754
ES 1800

80' : 21141+5818
STF2783

80' : 21252+5618
TDS1127

86' : 21232+5859
HDS3048

87' : 21119+5713
TDT2813

88' : 21290+5844
MLR 436AB

88' : 21114+5737
MLR 590

91' : 21314+5641
TDT3007

98' : 21106+5710
ES 1760



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.

21223+5734 A 764 AB (HD 203802)

 
 
21h 22m 20.42s +57° 33' 54.6" P.A. 21.00 sep 1.3 mag 8.23,10.69 Sp G5 dist. 96.43 pc (314.55 l.y.)
 
 
Coord 2000 21223+5734 Discov num A   764 Comp AB Coord arcsec 2000 21 22 20.42 +57 33 54.6
Date first 1904 Date last 2020 Obs 78
Pa first 254 Pa last 21.1 P.A. Now (θ) 21.1°
Sep first 0.4 Sep last 1.29 Sep. Now (ρ) 1.29"
Mag pri 8.23 Mag sec 10.69 delta mag (ΔM) 2.46 Spectral class G5 (yellow)
Pri motion ra +074 Sec motion ra +077
Pri motion dec +026 Sec motion dec +028
Notes N O (See Notes, Orbital solution)
rPM=0.044 (< 0.3, Physical double)
This double is physical.
 
 
21223+5734 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 203802 33367 21 22 20 +57 33 55 A 764 AB 2020 78 21 1.3 8.23 10.69 2.46 Y <===
Show 33367 21 22 20 +57 33 55 POP 1233 AC 2016 15 192 84.1 8.23 8.69 0.46
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 203802 Constellation Cepheus SAO 33367 HIP 105522
Tycho2 3974-00445-1 Gaia DR2 2178964388196558848 HD 203802 ADS 14926
BD BD+56 2564 Distance 96.43 Distance ly 314.55
 
 
ORBITAL ELEMENTS
 
 
Period (P)470y Periastron (T)1901.8y Semi-major axis (a)1.033a
Eccentricity (e)0.552 Inclination (i)10° Longitude of periastron (ω)125.2°
Node (Ω)110.8° Notesn ReferenceTok2021c
Equinox2000 Last observation2016 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 11.5 1.169
2001 12.0 1.176
2002 12.5 1.182
2003 13.0 1.188
2004 13.5 1.194
2005 13.9 1.200
2006 14.4 1.206
2007 14.9 1.212
2008 15.3 1.218
2009 15.8 1.224
2010 16.2 1.229
2011 16.6 1.235
2012 17.1 1.241
2013 17.5 1.246
2014 17.9 1.252
2015 18.4 1.257
2016 18.8 1.263
2017 19.2 1.268
2018 19.6 1.274
2019 20.0 1.279
2020 20.5 1.284
2021 20.9 1.289
2022 21.3 1.294
2023 21.7 1.300
2024 22.1 1.305
2025 22.4 1.310
2026 22.8 1.315
2027 23.2 1.320
2028 23.6 1.324
2029 24.0 1.329
2030 24.4 1.334


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds21223%2B5734c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21223+5734 A 764 AB (HD 203802) : NOTES
 
 
discov_num notes refcode
POP1233 AC: HJL1107. HJL1986
 
 
REFERENCES
 
 
refcode metd author reference
HJL1986 Pa - Halbwachs, J.L. 1986A&AS...66..131H
HJL1986 A&AS 66, 131, 1986
HJL1986 (Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986 only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
Tok2021c orb - Tokovinin, A. 2021IAUDS.203....1S
Tok2021c Inf. Circ. 203, 1, 2021
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
312 POP Popovic, G.M.
441 POP Popovic, G.M. (Cvetkovic, Z., Pavlovic, R., Strigachev, A., Novakovic, B., &
441 POP Popovic, G.M.)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21223+5734 A 764 AB 2006 71 14 1.2 8.23 10.69 G5 NOD 212220.42+573354.6
21223+5734 A 764 AB 2008 72 16 1.2 8.23 10.69 G5 NOD 212220.42+573354.6
21223+5734 A 764 AB 2016 73 19 1.3 8.23 10.69 G5 NO 212220.42+573354.6
21223+5734 A 764 AB 2017 75 199 1.3 8.23 10.69 G5 NOW 212220.42+573354.6
21223+5734 A 764 AB 2020 78 21 1.3 8.23 10.69 G5 NO 212220.42+573354.6

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

 
 
WDS 21223+5734 A 764 AB (HD 203802) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21223+5734 A 764 AB (HD 203802) : MEASURES
 
 
No records found.

 
 
WDS 21223+5734 (HD 203802) : VIRTUAL EYEPIECE
 
 

21223+5734 A 764A mag 8.23 Sp G5 21223+5734 A 764B sep 1.2 P.A. 11.70 mag 10.69 21223+5734 POP1233C sep 82.9 P.A. 186.30 mag 8.69 Sp K0 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 21223+5734 (HD 203802) : ALADIN DSS IMAGE @ 21h 22m 20.42s +57° 33' 54.6"
 
 
 
 
WDS 21223+5734 A 764 AB (HD 203802) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21223+5734 A 764AB distance=0' 21203+5737 MLB 87 distance=18' 21249+5734 A 766 distance=21' 21246+5715 HEI 881 distance=27' 21202+5809 STI2566 distance=40' 21178+5756 STI2564 distance=43' 21275+5747 HJ 1648 distance=45' 21165+5727 STI2562 distance=47' 21256+5814 BU 1141 distance=48' 21287+5710 BU 1142 distance=57' 21277+5656 HJ 1649 distance=58' 21220+5631 CRB 210 distance=64' 21302+5743 TDT3000 distance=64' 21193+5837 BAG 9Aa,Ab distance=69' 21193+5837 STF2790AB distance=69' 21193+5837 STF2790AC distance=69' 21193+5837 STF2790AD distance=69' 21199+5841 HLM 39 distance=70' 21147+5702 HJ 1630 distance=70' 21274+5835 MLR 435 distance=74' 21173+5837 BU 1140AB distance=75' 21173+5837 BU 1140AC distance=75' 21173+5837 PET 2Aa,Ab distance=75' 21314+5754 ES 1800 distance=76' 21141+5818 STF2783 distance=80' 21252+5618 TDS1127 distance=80' 21232+5859 HDS3048 distance=86' 21119+5713 TDT2813 distance=87' 21290+5844 HDS3058Aa,Ab distance=88' 21290+5844 MLR 436AB distance=88' 21114+5737 MLR 590 distance=88' 21314+5641 TDT3007 distance=91' 21106+5710 ES 1760 distance=98' 21101+5715 STI2561 distance=101' 21328+5839 HJ 1659AB distance=106' 21328+5839 HJ 1659AC distance=106' 21196+5552 MLR 582 distance=107' 21234+5923 ES 2709 distance=110' 21360+5728 STF2813 distance=111' 21160+5914 TDT2869 distance=112' 21364+5738 PET 4 distance=114' 21122+5854 ARG 107 distance=114' 21353+5648 TDT3045 distance=115' 21090+5654 RAO 447 distance=116' 21346+5633 A 1893AB distance=117' 21346+5633 A 1893AB,C distance=117' 21112+5620 DOO 16 distance=118' 21335+5857 MLR 437 distance=121' 21373+5731 PET 5 distance=121' 21182+5931 STI1020 distance=122' 21377+5734 D 25AB distance=124' 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 21223+5734 A 764 AB 21 1.3
Show 21223+5734 POP1233 AC 192 84.1
Show 21203+5737 MLB 87 333 2.7 18
Show 21249+5734 A 766 225 0.6 21
Show 21246+5715 HEI 881 71 3.2 27
Show 21202+5809 STI2566 125 13.2 40
Show 21178+5756 STI2564 212 5.0 43
Show 21275+5747 HJ 1648 29 9.3 45
Show 21165+5727 STI2562 77 11.2 47
Show 21256+5814 BU 1141 166 3.3 48
Show 21287+5710 BU 1142 6 0.4 57
Show 21277+5656 HJ 1649 61 5.9 58
Show 21220+5631 CRB 210 341 12.9 64
Show 21302+5743 TDT3000 164 0.5 64
Show 21193+5837 BAG 9 Aa,Ab 123 0.1 69
Show 21193+5837 STF2790 AB 45 4.6 69
Show 21193+5837 STF2790 AC 183 15.8 69
Show 21193+5837 STF2790 AD 352 74.8 69
Show 21199+5841 HLM 39 63 18.8 70
Show 21147+5702 HJ 1630 133 17.4 70
Show 21274+5835 MLR 435 236 0.2 74
Show 21173+5837 BU 1140 AB 274 4.2 75
Show 21173+5837 BU 1140 AC 271 68.2 75
Show 21173+5837 PET 2 Aa,Ab 271 0.1 75
Show 21314+5754 ES 1800 86 3.4 76
Show 21141+5818 STF2783 348 0.7 80
Show 21252+5618 TDS1127 236 1.1 80
Show 21232+5859 HDS3048 27 13.0 86
Show 21119+5713 TDT2813 359 0.5 87
Show 21290+5844 HDS3058 Aa,Ab 182 0.1 88
Show 21290+5844 MLR 436 AB 343 4.2 88
Show 21114+5737 MLR 590 7 0.2 88
Show 21314+5641 TDT3007 250 0.5 91
Show 21106+5710 ES 1760 29 2.1 98
Show 21101+5715 STI2561 183 14.2 101
Show 21328+5839 HJ 1659 AB 287 7.8 106
Show 21328+5839 HJ 1659 AC 68 19.3 106
Show 21196+5552 MLR 582 348 0.9 107
Show 21234+5923 ES 2709 275 12.2 110
Show 21360+5728 STF2813 272 10.2 111
Show 21160+5914 TDT2869 283 0.7 112
Show 21364+5738 PET 4 191 0.4 114
Show 21122+5854 ARG 107 193 37.0 114
Show 21353+5648 TDT3045 52 1.9 115
Show 21090+5654 RAO 447 234 3.5 116
Show 21346+5633 A 1893 AB 24 0.7 117
Show 21346+5633 A 1893 AB,C 67 16.4 117
Show 21112+5620 DOO 16 29 1.1 118
Show 21335+5857 MLR 437 302 0.5 121
Show 21373+5731 PET 5 76 0.8 121
Show 21182+5931 STI1020 128 2.8 122

 
 
WDS 21223+5734 : COMPONENTS
 
 
  A B
B pa=11.7°
sep=1.23"
 
C pa=186.3°
sep=82.86"
pa=186.4°
sep=84.08"
 
 
21223+5734 A
 
 
Name HD 203802 Coord arcsec 2000 212220.42+573354.6 Mag 8.23 Spectral class G5 (yellow)
PmRA 74.00 PmDE 26.0 SAO 33367 HIP 105522
Tycho2 3974-00445-1 HD 203802 BD BD+56 2564
Tycho2
Tycho2 3974-00445-1 Pflag RAmdeg 320.58542401 DEmdeg 57.56523217
PmRA 73.7 PmDE 25.9 E RAmdeg 6 E DEmdeg 6
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.34 EpDEm 1991.35
Num 9 Q RAmdeg 0.8 Q DEmdeg 1.5 Q pmRA 0.8
Q pmDE 1.5 BTmag 8.868 E BTmag 0.016 VTmag 8.226
E VTmag 0.012 Prox 11 TYC T HIP 105522
CCDM A RAdeg 320.58510778 DEdeg 57.56517222 EpRA 1990 1.72
EpDE 1990 1.71 E RAdeg 5.8 E DEdeg 5.9 Posflg P
Corr 0.0
SAO
SAO 33367 DelFlag RA1950 PmRA1950 0.0108
DE1950 PmDE1950 0.015 Vmag 8 SpType G5
Double code Source 38 CatNum 12127 DM BD+56 2564
DMcomp BDsup HD 203802 M HD 0
GC RA1950rad 5.58890593 DE1950rad 1.00095208 PmRA2000 0.0112
PmDE2000 0.012
Hipparcos
Catalog H HIP 105522 Proxy H RAhms 21 22 20.42
DEdms +57 33 54.6 Vmag 8.1 VarFlag R Vmag G
RAdeg 320.585 DEdeg 57.5652 AstroRef A Plx 10.5
CCDM 21223+5734 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 6 Rho 1.118 HD 203802 BD BD+56 2564
CD CP Dm number +56 2564 VIred 0.63
SpType G5 R SpType Coord arcsec 2000 212220.42+573354.6
Hipparcos 2
HIP 105522 Sn 15 So 3 Nc 2
RArad 5.5952653177 DErad 1.0047016362 Plx 10.37 PmRA 77.63
PmDE 27.76 E RArad 0.58 E DErad 0.57 E Plx 0.69
E pmRA 0.63 E pmDE 0.59 Hpmag 8.2257 E Hpmag 0.0013
SHp 0.013 VA 0 BV 0.56 E BV 0.015
VI 0.63
CCDM
Ccdm 21223+5734 RComp Comp A Note1
Note2 Discov num DRAs 2.58 DDEs -5.9
R dRAs 12 Year Theta Rho
Obs 2 Vmag 8.4 Sp G5 PmNote
PmRA 132 PmDE 38 Dm number +56 2564 Cat1 BD
Name2 +57 1428 Cat2 AGK2/3 HD 203802 M HD
ADS BDS A14926 M ADS BDS N IDS IDS 21194N5708A
HIC 105522
 
 
21223+5734 B
 
 
Coord arcsec 2000 212220.45+573355.8 Mag 10.69 PmRA 77.00 PmDE 28.0
Calc delta mag 2.46 Calc coord yes
CCDM
Ccdm 21223+5734 RComp Comp B Note1 *
Note2 Discov num A 764 DRAs DDEs
R dRAs Year 1959 Theta 346 Rho 1.1
Obs 28 Vmag 9.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14926 M ADS BDS N IDS IDS 21194N5708B
HIC 105522
 
 
21223+5734 C
 
 
Coord arcsec 2000 212219.28+573232.2 Mag 8.69 Spectral class K0 (yellow-orange) PmRA 83.00
PmDE 32.0 SAO 33366 Tycho2 3974-00027-1 HD 239643
DM BD+56 2562 Calc delta mag 0.46 Calc coord yes
Tycho2
Tycho2 3974-00027-1 Pflag RAmdeg 320.57666968 DEmdeg 57.54248232
PmRA 79.1 PmDE 32.6 E RAmdeg 7 E DEmdeg 8
E pmRA 1.5 E pmDE 1.6 EpRAm 1991.25 EpDEm 1991.09
Num 8 Q RAmdeg 1.0 Q DEmdeg 1.6 Q pmRA 1.1
Q pmDE 1.6 BTmag 9.279 E BTmag 0.018 VTmag 8.690
E VTmag 0.014 Prox 837 TYC T HIP
CCDM RAdeg 320.57633111 DEdeg 57.54240694 EpRA 1990 1.74
EpDE 1990 1.70 E RAdeg 7.2 E DEdeg 7.8 Posflg
Corr 0.0
SAO
SAO 33366 DelFlag RA1950 PmRA1950 0.0101
DE1950 PmDE1950 0.016 Vmag 8.3 SpType K0
Double code Source 38 CatNum 12126 DM BD+56 2562
DMcomp BDsup HD 239643 M HD 0
GC RA1950rad 5.58874869 DE1950rad 1.000553 PmRA2000 0.0105
PmDE2000 0.013