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Current system
21395-0003
BU 1212 AB


Nearby doubles
9' : 21390-0002
CBL 532

13' : 21404+0003
AOT 105

22' : 21406-0018
AOT 106

26' : 21383-0020
STF2811

26' : 21406-0023
CVR 914

30' : 21415+0000
CHE 307

34' : 21416+0013
CHE 308

34' : 21404+0034
SMA 151

36' : 21376-0023
STF2809AB

37' : 21371-0007
WIS 350

39' : 21409-0035
J 1408

39' : 21417-0024
UC 4532

43' : 21376+0035
ARU 4

46' : 21423+0021
CHE 312

47' : 21417-0036
J 1409

47' : 21371+0033
LAW 28AB

48' : 21426-0013
UC 4535

50' : 21424+0027
STF2817AB

51' : 21406+0051
SLW1247

53' : 21426+0027
WAA9001

54' : 21365+0031
J 163

56' : 21422+0040
CHE 311

56' : 21428+0028
CHE 313

57' : 21363-0032
ITF 183AB

57' : 21424+0037
BAL1236AB

58' : 21362-0030
ITF 168



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.

21395-0003 BU 1212 AB

 
 
21h 39m 31.39s -00° 03' 04.1" P.A. 156.00 sep 0.1 mag 6.94,8.44 Sp F6V dist. 43.98 pc (143.46 l.y.)
 
 
Coord 2000 21395-0003 Discov num BU 1212 Comp AB Coord arcsec 2000 21 39 31.39 -00 03 04.1
Date first 1890 Date last 2021 Obs 271
Pa first 255 Pa last 155.6 P.A. Now (θ) 192.9°
Sep first 0.5 Sep last 0.103 Sep. Now (ρ) 0.179"
Mag pri 6.94 Mag sec 8.44 delta mag (ΔM) 1.5 Spectral class F6V (yellow-white)
Pri motion ra +228 Sec motion ra +228
Pri motion dec +015 Sec motion dec +015
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
21395-0003 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 145566 21 39 31 -00 03 04 BU 1212 AB 2021 271 156 0.1 6.94 8.44 1.50 Y <===
Show HD 206058 145566 21 39 31 -00 03 04 BU 1212 AB,C 2013 20 178 36.2 6.63 11.75 5.12
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius SAO 145566 HIP 106942 Tycho2 5209-00253-1
HD 206058 GC 30314 ADS 15176 BD BD-00 4245
Flamsteed 24 Aquarii Flamsteed name 24 Aqr Distance 43.98 Distance ly 143.46
 
 
ORBITAL ELEMENTS
 
 
Period (P)48.65y Periastron (T)1971.55y Semi-major axis (a)0.448a
Eccentricity (e)0.868 Inclination (i)58° Longitude of periastron (ω)293°
Node (Ω)139.3° Notesn ReferenceHei1994a
Equinox2000 Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 273.7 0.540
2001 275.0 0.542
2002 276.3 0.542
2003 277.7 0.540
2004 279.0 0.538
2005 280.4 0.534
2006 281.8 0.528
2007 283.2 0.521
2008 284.6 0.512
2009 286.2 0.501
2010 287.8 0.488
2011 289.5 0.472
2012 291.3 0.454
2013 293.3 0.432
2014 295.5 0.407
2015 298.0 0.377
2016 301.1 0.341
2017 304.9 0.296
2018 310.4 0.239
2019 320.3 0.161
2020 20.7 0.038
2021 155.8 0.111
2022 178.5 0.151
2023 192.9 0.179
2024 203.6 0.203
2025 212.1 0.227
2026 219.0 0.250
2027 224.8 0.272
2028 229.7 0.293
2029 233.9 0.313
2030 237.7 0.333


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


 
  


wds21395-0003b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21395-0003 BU 1212 AB : NOTES
 
 
discov_num notes refcode
BU 1212 24 Aqr.
One component is SB; the RV range in the combined light is 45 km/s.
Branham (2005) uses this system illustrate a method for calculating Bnh2005
orbital elements. His elements are not included in the catalog, as
he considers them only an example.
Combined spectroscopic/visual solution by Branham (2007). Additional Bnh2007
elements: V0 = -13.339 +/- 0.010 km/sec, K1 = -6.921 +/- 0.022 km/sec,
K2 = -9.061 +/- 0.020 km/sec, parallax = 0".014 +/- 0".008,
fractional mass = 0.433 +/- 0.002.
AB,C: Optical pair, based on study of relative motion of the
components using the method of apparent motion parameters. Kiy2008
AB,C: Rectilinear solution by Hurowitz et al. (2014). USN2014b
 
 
REFERENCES
 
 
refcode metd author reference
Bnh2005 orb - Branham, R.L., Jr. 2005ApJ...622..613B
Bnh2005 ApJ 622, 613, 2005
Bnh2007 orb - Branham, R.L., Jr. 2007AJ....134..274B
Bnh2007 AJ 134, 274, 2007
Hei1994a orb - Heintz, W.D. 1994AJ....108.2338H
Hei1994a AJ 108, 2338, 1994
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 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21395-0003 BU 1212 AB 2004 264 280 0.5 6.94 8.44 F6V NOD 213931.39-000304.1
21395-0003 BU 1212 AB 2008 270 285 0.5 6.94 8.44 F6V NOD 213931.39-000304.1
21395-0003 BU 1212 AB 2009 273 286 0.5 6.94 8.44 F6V NOD 213931.39-000304.1
21395-0003 BU 1212 AB 2015 260 300 0.4 6.94 8.44 F6V NO 213931.39-000304.1
21395-0003 BU 1212 AB 2017 264 307 0.3 6.94 8.44 F6V NO 213931.39-000304.1
21395-0003 BU 1212 AB 2018 265 312 0.2 6.94 8.44 F6V NO 213931.39-000304.1
21395-0003 BU 1212 AB 2019 267 322 0.2 6.94 8.44 F6V NO 213931.39-000304.1
21395-0003 BU 1212 AB 2020 269 88 0.0 6.94 8.44 F6V NO 213931.39-000304.1
21395-0003 BU 1212 AB 2021 271 156 0.1 6.94 8.44 F6V NO 213931.39-000304.1

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

 
 
WDS 21395-0003 BU 1212 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21395-0003 BU 1212 AB : MEASURES
 
 
No records found.

 
 
WDS 21395-0003 : VIRTUAL EYEPIECE
 
 

21395-0003 BU 1212A mag 6.94 Sp F6V 21395-0003 BU 1212B sep 0.1 P.A. 155.60 mag 8.44 21395-0003 BU 1212C sep 36.2 P.A. 178.20 mag 11.75 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 21395-0003 : ALADIN DSS IMAGE @ 21h 39m 31.39s -00° 03' 04.1"
 
 
 
 
WDS 21395-0003 BU 1212 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21395-0003 BU 1212AB distance=0' 21390-0002 CBL 532 distance=9' 21404+0003 AOT 105 distance=13' 21406-0018 AOT 106 distance=22' 21383-0020 STF2811 distance=26' 21406-0023 CVR 914 distance=26' 21415+0000 CHE 307 distance=30' 21416+0013 CHE 308 distance=34' 21404+0034 SMA 151 distance=34' 21376-0023 STF2809AB distance=36' 21376-0023 FYM9001AC distance=36' 21371-0007 WIS 350 distance=37' 21409-0035 J 1408 distance=39' 21417-0024 UC 4532 distance=39' 21376+0035 ARU 4 distance=43' 21423+0021 CHE 312 distance=46' 21417-0036 J 1409 distance=47' 21371+0033 LAW 28Aa,Ab distance=47' 21371+0033 LAW 28AB distance=47' 21426-0013 UC 4535 distance=48' 21424+0027 AOT 107BC distance=50' 21424+0027 STF2817AB distance=50' 21424+0027 AOT 107AC distance=50' 21406+0051 SLW1247 distance=51' 21426+0027 WAA9001 distance=53' 21365+0031 J 163 distance=54' 21422+0040 CHE 311 distance=56' 21428+0028 CHE 313 distance=56' 21424+0037 SMA 152BC distance=57' 21363-0032 ITF 183AB distance=57' 21363-0032 ITF 183AC distance=57' 21424+0037 SMA 152AC distance=57' 21424+0037 BAL1236AB distance=57' 21363-0032 ITF 170BC distance=57' 21362-0030 ITF 168 distance=58' 21361-0032 ITF 169 distance=60' 21435+0003 CHE 314 distance=60' 21359-0028 ITF 172 distance=60' 21427-0039 WAA9002 distance=60' 21372+0054 ARU 22 distance=62' 21359+0041 HJ 3039 distance=66' 21421+0059 CHE 310 distance=69' 21408+0110 SLW1248 distance=70' 21437+0030 CHE 315 distance=72' 21421+0104 CHE 309 distance=73' 21444+0008 CHE 316 distance=73' 21406+0116 CHE 306 distance=76' 21435+0052 WAA9003 distance=78' 21447-0003 CHE 317 distance=79' 21412+0117 BAL1235 distance=79' 21412+0118 TOB 318 distance=80' 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 21395-0003 BU 1212 AB 156 0.1
Show 21395-0003 BU 1212 AB,C 178 36.2
Show 21390-0002 CBL 532 263 80.6 9
Show 21404+0003 AOT 105 159 18.7 13
Show 21406-0018 AOT 106 83 16.6 22
Show 21383-0020 STF2811 273 31.1 26
Show 21406-0023 CVR 914 12 29.8 26
Show 21415+0000 CHE 307 80 21.7 30
Show 21416+0013 CHE 308 186 10.8 34
Show 21404+0034 SMA 151 124 4.5 34
Show 21376-0023 STF2809 AB 163 31.1 36
Show 21376-0023 FYM9001 AC 18 37.8 36
Show 21371-0007 WIS 350 42 147.9 37
Show 21409-0035 J 1408 356 6.6 39
Show 21417-0024 UC 4532 160 17.3 39
Show 21376+0035 ARU 4 235 0.3 43
Show 21423+0021 CHE 312 282 24.0 46
Show 21417-0036 J 1409 327 3.8 47
Show 21371+0033 LAW 28 Aa,Ab 122 0.2 47
Show 21371+0033 LAW 28 AB 322 18.8 47
Show 21426-0013 UC 4535 143 19.5 48
Show 21424+0027 AOT 107 BC 174 6.4 50
Show 21424+0027 STF2817 AB 155 26.1 50
Show 21424+0027 AOT 107 AC 157 35.7 50
Show 21406+0051 SLW1247 225 162.8 51
Show 21426+0027 WAA9001 27 1.7 53
Show 21365+0031 J 163 307 4.6 54
Show 21422+0040 CHE 311 229 22.3 56
Show 21428+0028 CHE 313 180 7.1 56
Show 21424+0037 SMA 152 BC 112 30.8 57
Show 21363-0032 ITF 183 AB 248 20.5 57
Show 21363-0032 ITF 183 AC 245 18.4 57
Show 21424+0037 SMA 152 AC 102 17.4 57
Show 21424+0037 BAL1236 AB 312 15.6 57
Show 21363-0032 ITF 170 BC 94 2.5 57
Show 21362-0030 ITF 168 144 4.4 58
Show 21361-0032 ITF 169 135 4.2 60
Show 21435+0003 CHE 314 229 37.8 60
Show 21359-0028 ITF 172 333 3.2 60
Show 21427-0039 WAA9002 80 1.2 60
Show 21372+0054 ARU 22 195 0.6 62
Show 21359+0041 HJ 3039 153 11.3 66
Show 21421+0059 CHE 310 30 20.9 69
Show 21408+0110 SLW1248 36 18.3 70
Show 21437+0030 CHE 315 334 9.6 72
Show 21421+0104 CHE 309 336 27.3 73
Show 21444+0008 CHE 316 297 38.4 73
Show 21406+0116 CHE 306 183 25.0 76
Show 21435+0052 WAA9003 9 0.9 78
Show 21447-0003 CHE 317 223 29.2 79
Show 21412+0117 BAL1235 319 8.9 79

 
 
WDS 21395-0003 : COMPONENTS
 
 
  A B
B pa=155.6°
sep=0.10"
 
C pa=178.2°
sep=36.20"
pa=178.3°
sep=36.10"
 
 
21395-0003 A
 
 
Coord arcsec 2000 213931.39-000304.1 Mag 6.94 Spectral class F6V (yellow-white) PmRA 228.00
PmDE 15.0 SAO 145566 HIP 106942 Tycho2 5209-00253-1
HD 206058 GC 30314 BD BD-00 4245 Flamsteed 24 Aquarii
Flamsteed name 24 Aqr
Tycho2
Tycho2 5209-00253-1 Pflag RAmdeg 324.88129756 DEmdeg -0.05111144
PmRA 227.5 PmDE 14.7 E RAmdeg 4 E DEmdeg 5
E pmRA 1.0 E pmDE 0.9 EpRAm 1991.39 EpDEm 1990.85
Num 19 Q RAmdeg 1.0 Q DEmdeg 1.4 Q pmRA 1.0
Q pmDE 1.6 BTmag 7.275 E BTmag 0.015 VTmag 6.722
E VTmag 0.011 Prox 999 TYC T HIP 106942
CCDM AB RAdeg 324.88077306 DEdeg -0.05114611 EpRA 1990 1.70
EpDE 1990 1.50 E RAdeg 4.1 E DEdeg 5.0 Posflg P
Corr -0.2
SAO
SAO 145566 DelFlag RA1950 PmRA1950 0.0154
DE1950 PmDE1950 0.019 Vmag 6.8 SpType F8
Double code Source 70 CatNum 30314 DM BD-00 4245
DMcomp BDsup HD 206058 M HD 0
GC 30314 RA1950rad 5.6590015 DE1950rad -0.00485398 PmRA2000 0.0156
PmDE2000 0.015
Hipparcos
Catalog H HIP 106942 Proxy H RAhms 21 39 31.39
DEdms -00 03 04.1 Vmag 6.66 VarFlag R Vmag G
RAdeg 324.881 DEdeg -0.0511406 AstroRef A Plx 23.13
CCDM 21395-0003 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 261 Rho 0.482 HD 206058 BD BD-00 4245
CD CP Dm number -00 4245 VIred 0.59
SpType F7III R SpType Coord arcsec 2000 213931.39-000304.1
Hipparcos 2
HIP 106942 Sn 15 So 3 Nc 2
RArad 5.6702395361 DErad -0.0008925608 Plx 22.74 PmRA 232.76
PmDE 8.81 E RArad 0.77 E DErad 0.48 E Plx 0.81
E pmRA 1.12 E pmDE 0.51 Hpmag 6.7581 E Hpmag 0.0012
SHp 0.007 VA 0 BV 0.514 E BV 0.008
VI 0.59
CCDM
Ccdm 21395-0003 RComp Comp A Note1
Note2 Discov num DRAs 1.63 DDEs -3.3
R dRAs 56 Year Theta Rho
Obs 3 Vmag 7.3 Sp F8 PmNote
PmRA 218 PmDE 27 Dm number -00 4245 Cat1 BD
Name2 -00 2789 Cat2 AGK2/3 HD 206058 M HD
ADS BDS A15176 M ADS BDS N IDS IDS 21344S0030A
HIC 106942
 
 
21395-0003 B
 
 
Coord arcsec 2000 213931.39+000304.0 Mag 8.44 PmRA 228.00 PmDE 15.0
Calc delta mag 1.5 Calc coord yes
CCDM
Ccdm 21395-0003 RComp Comp B Note1 *
Note2 Discov num BU 1212 DRAs DDEs
R dRAs Year 1890 Theta Rho
Obs 99 Vmag 7.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15176 M ADS BDS N IDS IDS 21344S0030B
HIC 106942
 
 
21395-0003 C
 
 
Coord arcsec 2000 213931.47+000227.9 Mag 11.75 PmRA 7.00 PmDE -4.0
Calc delta mag 4.81 Calc coord yes
CCDM
Ccdm 21395-0003 RComp Comp C Note1
Note2 Discov num BU 1212 DRAs 1.78 DDEs -40.0
R dRAs 56 Year 1959 Theta 160 Rho 37.6
Obs 10 Vmag 10.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15176 M ADS BDS N IDS IDS 21344S0030C
HIC