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Doubles in session


Current system
01259-4754
RST 33 AB
HD 8821


Nearby doubles
7' : 01262-4759
KPP2840

35' : 01244-4724
KPP2841

37' : 01223-4758
KPP3453

46' : 01249-4710
RST 32

50' : 01266-4843
LIT 4

52' : 01287-4710
LDS 48

55' : 01207-4738
RST 30

58' : 01211-4725
LDS 45

61' : 01210-4829
NSN 216AB

70' : 01327-4808
KPP3457AB

73' : 01331-4753
TOI 380

73' : 01203-4841
HJ 3428

80' : 01222-4904
KPP1575

82' : 01180-4809
TOK 812

96' : 01275-4928
HJ 3438

100' : 01161-4804
UC 531

102' : 01192-4638
RST2260

105' : 01174-4855
TDS1830

105' : 01312-4624
HU 1344

107' : 01155-4734
UC 529

108' : 01121-4730
CPO9401

108' : 01222-4613
B 652

109' : 01217-4934
TDS1853

112' : 01361-4711
TDS1925

114' : 01211-4937
UC 551

118' : 01325-4932
NSN 215



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.

01259-4754 RST 33 AB (HD 8821)

 
 
01h 25m 56.10s -47° 53' 55.9" P.A. 302.00 sep 1.1 mag 8.13,9.77 Sp K0V dist. 37.68 pc (122.91 l.y.)
 
 
Coord 2000 01259-4754 Discov num RST  33 Comp AB Coord arcsec 2000 01 25 56.10 -47 53 55.9
Date first 1928 Date last 2016 Obs 40
Pa first 227 Pa last 302.4 P.A. Now (θ) 302.4°
Sep first 0.5 Sep last 1.12 Sep. Now (ρ) 1.12"
Mag pri 8.13 Mag sec 9.77 delta mag (ΔM) 1.64 Spectral class K0V (yellow-orange)
Pri motion ra -019 Sec motion ra -019
Pri motion dec -130 Sec motion dec -130
Notes O (Orbital solution)
This double is physical.
 
 
01259-4754 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 8821 215503 01 25 56 -47 53 56 RST 33 AB 2016 40 302 1.1 8.13 9.77 1.64 Y <===
Show 215503 01 25 56 -47 53 56 KPP 4348 AC 2016 4 3 18.2 8.60 14.30 5.70
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 8821 Constellation Phoenix SAO 215503 HIP 6693
Tycho2 8036-00856-1 HD 8821 CD CD-48 367 CP CP-48 165
Distance 37.68 Distance ly 122.91
 
 
ORBITAL ELEMENTS
 
 
Period (P)175.3379y± 9.2102 Periastron (T)1951.4746y± 0.6665 Semi-major axis (a)0.91477a± 0.04416
Eccentricity (e)0.79785± 0.02203 Inclination (i)123.438°± 2.86 Longitude of periastron (ω)67.124°± 2.903
Node (Ω)155.63°± 2.555 Notes ReferenceIzm2019
Equinox Last observation2010 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 301.8 1.080
2001 301.3 1.084
2002 300.9 1.087
2003 300.4 1.090
2004 299.9 1.093
2005 299.4 1.096
2006 298.9 1.098
2007 298.5 1.100
2008 298.0 1.102
2009 297.5 1.103
2010 297.1 1.104
2011 296.6 1.105
2012 296.1 1.106
2013 295.7 1.106
2014 295.2 1.107
2015 294.7 1.107
2016 294.3 1.107
2017 293.8 1.106
2018 293.3 1.106
2019 292.9 1.105
2020 292.4 1.104
2021 291.9 1.103
2022 291.5 1.102
2023 291.0 1.100
2024 290.5 1.098
2025 290.0 1.097
2026 289.6 1.094
2027 289.1 1.092
2028 288.6 1.090
2029 288.1 1.087
2030 287.6 1.084


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


 
  


wds01259-4754b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 01259-4754 RST 33 AB (HD 8821) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
 
 
DISCOVERER
 
 
idgroup discov author
1 KPP Knapp, W.
251 RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
01259-4754 RST 33 AB 2010 39 297 1.1 8.13 9.77 K0V O 012556.10-475355.9
01259-4754 RST 33 AB 2016 40 302 1.1 8.13 9.77 K0V O 012556.10-475355.9

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

 
 
WDS 01259-4754 RST 33 AB (HD 8821) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 01259-4754 RST 33 AB (HD 8821) : MEASURES
 
 
No records found.

 
 
WDS 01259-4754 (HD 8821) : VIRTUAL EYEPIECE
 
 

01259-4754 RST 33A mag 8.13 Sp K0V 01259-4754 RST 33B sep 0.9 P.A. 313.40 mag 9.77 01259-4754 KPP4348C sep 18.2 P.A. 1.80 mag 14.3 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 01259-4754 (HD 8821) : ALADIN DSS IMAGE @ 01h 25m 56.10s -47° 53' 55.9"
 
 
 
 
WDS 01259-4754 RST 33 AB (HD 8821) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

01259-4754 RST 33AB distance=0' 01262-4759 KPP2840 distance=7' 01244-4724 KPP2841 distance=35' 01223-4758 KPP3453 distance=37' 01249-4710 RST 32 distance=46' 01266-4843 LIT 4 distance=50' 01287-4710 LDS 48 distance=52' 01207-4738 RST 30 distance=55' 01211-4725 LDS 45 distance=58' 01210-4829 NSN 216AB distance=61' 01327-4808 KPP3457AB distance=70' 01331-4753 TOI 380 distance=73' 01203-4841 HJ 3428 distance=73' 01222-4904 KPP1575 distance=80' 01180-4809 TOK 812 distance=82' 01275-4928 HJ 3438 distance=96' 01161-4804 UC 531 distance=100' 01192-4638 RST2260 distance=102' 01174-4855 TDS1830 distance=105' 01312-4624 HU 1344 distance=105' 01155-4734 UC 529 distance=107' 01121-4730 CPO9401 distance=108' 01222-4613 B 652 distance=108' 01217-4934 TDS1853 distance=109' 01361-4711 TDS1925 distance=112' 01211-4937 UC 551 distance=114' 01325-4932 NSN 215 distance=118' 01161-4650 HDS 166 distance=119' 01151-4707 SKF 408 distance=120' 01373-4720 LDS 53 distance=121' 01165-4911 UC 533AB distance=122' 01373-4712 RST 35 distance=123' 01244-4958 TDS 49 distance=126' 01325-4608 B 654 distance=126' 01136-4732 BRT 641 distance=127' 01320-4947 DAM1283 distance=128' 01326-4944 SHY 405AC distance=128' 01326-4944 UC 575AB distance=128' 01129-4752 UC 520 distance=132' 01150-4918 TDS1815Aa,Ab distance=138' 01150-4918 UC 528AB distance=138' 01399-4718 RST 37 distance=146' 01200-5007 HJ 3427 distance=146' 01116-4734 TDS1798 distance=146' 01202-5009 LDS 44 distance=146' 01269-5023 ART 1 distance=150' 01316-4532 BRT 644 distance=154' 01343-4541 I 51 distance=159' 01123-4917 CPO 26 distance=159' 01155-4549 RST2259AB distance=164' 01155-4549 CPO 109AB,C distance=164' 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 01259-4754 RST 33 AB 302 1.1
Show 01259-4754 KPP4348 AC 3 18.2
Show 01262-4759 KPP2840 52 1.5 7
Show 01244-4724 KPP2841 289 1.4 35
Show 01223-4758 KPP3453 1 30.6 37
Show 01249-4710 RST 32 279 1.3 46
Show 01266-4843 LIT 4 113 10.2 50
Show 01287-4710 LDS 48 175 25.0 52
Show 01207-4738 RST 30 115 3.7 55
Show 01211-4725 LDS 45 325 5.5 58
Show 01210-4829 NSN 216 AB 264 2.2 61
Show 01327-4808 KPP3457 AB 25 3.8 70
Show 01331-4753 TOI 380 6 0.2 73
Show 01203-4841 HJ 3428 157 20.8 73
Show 01222-4904 KPP1575 288 11.9 80
Show 01180-4809 TOK 812 80 0.3 82
Show 01275-4928 HJ 3438 35 12.2 96
Show 01161-4804 UC 531 192 14.4 100
Show 01192-4638 RST2260 181 1.7 102
Show 01174-4855 TDS1830 231 0.9 105
Show 01312-4624 HU 1344 102 1.5 105
Show 01155-4734 UC 529 203 29.4 107
Show 01121-4730 CPO9401 358 9.0 108
Show 01222-4613 B 652 202 3.5 108
Show 01217-4934 TDS1853 151 0.5 109
Show 01361-4711 TDS1925 345 0.9 112
Show 01211-4937 UC 551 319 19.9 114
Show 01325-4932 NSN 215 3 6.0 118
Show 01161-4650 HDS 166 12 0.3 119
Show 01151-4707 SKF 408 28 2.8 120
Show 01373-4720 LDS 53 355 19.1 121
Show 01165-4911 UC 533 AB 5 17.8 122
Show 01373-4712 RST 35 283 0.3 123
Show 01244-4958 TDS 49 29 0.9 126
Show 01325-4608 B 654 207 1.8 126
Show 01136-4732 BRT 641 181 3.2 127
Show 01320-4947 DAM1283 215 50.9 128
Show 01326-4944 SHY 405 AC 231 999.9 128
Show 01326-4944 UC 575 AB 334 18.7 128
Show 01129-4752 UC 520 188 33.1 132
Show 01150-4918 TDS1815 Aa,Ab 167 0.7 138
Show 01150-4918 UC 528 AB 104 12.6 138
Show 01399-4718 RST 37 12 1.5 146
Show 01200-5007 HJ 3427 135 24.4 146
Show 01116-4734 TDS1798 352 0.4 146
Show 01202-5009 LDS 44 296 26.0 146
Show 01269-5023 ART 1 121 81.9 150
Show 01316-4532 BRT 644 21 2.4 154
Show 01343-4541 I 51 8 1.6 159
Show 01123-4917 CPO 26 41 2.0 159
Show 01155-4549 RST2259 AB 121 0.2 164

 
 
WDS 01259-4754 : COMPONENTS
 
 
  A B
B pa=313.4°
sep=0.87"
 
C pa=1.8°
sep=18.17"
pa=3.9°
sep=17.60"
 
 
01259-4754 A
 
 
Name HD 8821 Coord arcsec 2000 012556.10-475355.9 Mag 8.13 Spectral class K0V (yellow-orange)
PmRA -19.00 PmDE -130.0 SAO 215503 HIP 6693
Tycho2 8036-00856-1 HD 8821 CD CD-48 367 CP CP-48 165
Tycho2
Tycho2 8036-00856-1 Pflag P RAmdeg 21.48376131 DEmdeg -47.89887284
PmRA -19.4 PmDE -130.2 E RAmdeg 6 E DEmdeg 6
E pmRA 2.1 E pmDE 1.9 EpRAm 1991.41 EpDEm 1991.48
Num 5 Q RAmdeg 1.2 Q DEmdeg 2.2 Q pmRA 1.2
Q pmDE 2.1 BTmag 8.930 E BTmag 0.017 VTmag 8.127
E VTmag 0.012 Prox 10 TYC T HIP 6693
CCDM A RAdeg 21.48385028 DEdeg -47.89858083 EpRA 1990 1.54
EpDE 1990 1.63 E RAdeg 6.1 E DEdeg 6.0 Posflg D
Corr 0.0
SAO
SAO 215503 DelFlag RA1950 PmRA1950 -0.0023
DE1950 PmDE1950 -0.111 Vmag 8 SpType G5
Double code Source 48 CatNum 667 DM CP-48 165
DMcomp BDsup HD 8821 M HD 0
GC RA1950rad 0.36574535 DE1950rad -0.84048952 PmRA2000 -0.0021
PmDE2000 -0.117
Hipparcos
Catalog H HIP 6693 Proxy H RAhms 01 25 56.13
DEdms -47 53 54.8 Vmag 7.86 VarFlag R Vmag G
RAdeg 21.4839 DEdeg -47.8986 AstroRef A Plx 25.95
CCDM 01259-4754 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 307 Rho 1.042 HD 8821 BD
CD CD-48 367 CP CP-48 165 Dm number -48 367 VIred 0.79
SpType K0V R SpType Coord arcsec 2000 012556.13-475354.8
Hipparcos 2
HIP 6693 Sn 15 So 3 Nc 2
RArad 0.3749640159 DErad -0.835987728 Plx 26.54 PmRA -22.14
PmDE -126.01 E RArad 0.64 E DErad 0.8 E Plx 0.96
E pmRA 0.8 E pmDE 0.99 Hpmag 7.9726 E Hpmag 0.0016
SHp 0.019 VA 0 BV 0.75 E BV 0.015
VI 0.79
CCDM
Ccdm 01259-4754 RComp Comp A Note1
Note2 Discov num DRAs 2.13 DDEs 5.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.3 Sp G5 PmNote *
PmRA -23 PmDE -111 Dm number -48 367 Cat1 CD
Name2 215503 Cat2 SAO HD 8821 M HD
ADS BDS M ADS BDS N IDS IDS 01217S4825A
HIC 6693
 
 
01259-4754 B
 
 
Coord arcsec 2000 012556.04-475355.3 Mag 9.77 PmRA -19.00 PmDE -130.0
Tycho2 8036-00856-2 Calc delta mag 1.64 Calc coord yes
Tycho2
Tycho2 8036-00856-2 Pflag P RAmdeg 21.48376131 DEmdeg -47.89887284
PmRA -19.4 PmDE -130.2 E RAmdeg 6 E DEmdeg 6
E pmRA 2.1 E pmDE 1.9 EpRAm 1991.41 EpDEm 1991.48
Num 5 Q RAmdeg 1.2 Q DEmdeg 2.2 Q pmRA 1.2
Q pmDE 2.1 BTmag 11.158 E BTmag 0.055 VTmag 9.767
E VTmag 0.025 Prox 10 TYC HIP 6693
CCDM B RAdeg 21.48351944 DEdeg -47.89841194 EpRA 1990 1.53
EpDE 1990 1.61 E RAdeg 21.0 E DEdeg 20.4 Posflg D
Corr 0.1
CCDM
Ccdm 01259-4754 RComp Comp B Note1 *
Note2 Discov num RST 33 DRAs DDEs
R dRAs Year 1928 Theta Rho
Obs 12 Vmag 9.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 01217S4825B
HIC 6693
 
 
01259-4754 C
 
 
Coord arcsec 2000 012556.16-475337.7 Mag 14.3 PmRA -22.00 PmDE -128.0
Calc delta mag 6.17 Calc coord yes