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Doubles in session


Current system
22281+1215
BU 701 AB
HD 212989


Nearby doubles
10' : 22280+1225
J 580

15' : 22291+1212
BPM2452

20' : 22290+1200
BRT1360AB

21' : 22284+1155
KPP4274

44' : 22274+1258
J 855

60' : 22271+1117
A 1231

67' : 22306+1309
HJ 296

69' : 22313+1304
BRT1361

78' : 22333+1203
HEI 411

79' : 22287+1333
BPM2451

83' : 22322+1311
HJ 1776AB

84' : 22333+1246
GRV 586

84' : 22317+1319
CBL 541

84' : 22338+1206
HJ 3121

85' : 22337+1230
HJ 298AB

85' : 22334+1249
BPM2456

91' : 22314+1332
TDT3567

93' : 22249+1056
UC 4738

93' : 22253+1039
HJ 5527AB

94' : 22334+1122
BPM2455

94' : 22237+1107
A 630

95' : 22346+1210
DVG 48

97' : 22216+1207
BPM2445

105' : 22351+1153
SKF 288

106' : 22301+1034
BRT3368

107' : 22217+1125
TDT3484



Selections
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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

22281+1215 BU 701 AB (HD 212989)

 
 
22h 28m 07.24s +12° 14' 55.5" P.A. 179.00 sep 1.1 mag 7.34,9.62 Sp K0V dist. 66.4 pc (216.6 l.y.)
 
 
Coord 2000 22281+1215 Discov num BU  701 Comp AB Coord arcsec 2000 22 28 07.24 +12 14 55.5
Date first 1877 Date last 2017 Obs 65
Pa first 283 Pa last 178.9 P.A. Now (θ) 178.9°
Sep first 1.2 Sep last 1.073 Sep. Now (ρ) 1.073"
Mag pri 7.34 Mag sec 9.62 delta mag (ΔM) 2.28 Spectral class K0V (yellow-orange)
Pri motion ra +191 Sec motion ra +191
Pri motion dec -004 Sec motion dec -004
Notes O (Orbital solution)
This double is physical.
 
 
22281+1215 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 212989 107935 22 28 07 +12 14 56 BU 701 AB 2017 65 179 1.1 7.34 9.62 2.28 Y <===
Show 107935 22 28 07 +12 14 56 BU 701 AC 2015 10 133 126.7 7.34 11.97 4.63
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 212989 Constellation Pegasus SAO 107935 HIP 110900
Tycho2 1154-01842-1 Gaia DR2 2730563121000851584 HD 212989 GC 31383
ADS 15962 GL GJ 1269A BD BD+11 4804 Distance 66.4
Distance ly 216.6
 
 
ORBITAL ELEMENTS
 
 
Period (P)554.46y Periastron (T)2288.31y Semi-major axis (a)1.4a
Eccentricity (e)0.139 Inclination (i)124.1° Longitude of periastron (ω)105.4°
Node (Ω)118.1° Notes ReferenceCve2005
Equinox2000 Last observation1999 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 190.8 0.922
2001 190.0 0.925
2002 189.1 0.928
2003 188.3 0.931
2004 187.5 0.934
2005 186.7 0.938
2006 185.9 0.941
2007 185.1 0.945
2008 184.3 0.948
2009 183.5 0.952
2010 182.8 0.956
2011 182.0 0.960
2012 181.2 0.964
2013 180.5 0.968
2014 179.7 0.972
2015 179.0 0.977
2016 178.2 0.981
2017 177.5 0.986
2018 176.8 0.990
2019 176.1 0.995
2020 175.4 0.999
2021 174.7 1.004
2022 174.0 1.009
2023 173.3 1.014
2024 172.6 1.019
2025 171.9 1.024
2026 171.2 1.029
2027 170.6 1.034
2028 169.9 1.039
2029 169.3 1.044
2030 168.6 1.049


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


 
  


wds22281%2B1215a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 22281+1215 BU 701 AB (HD 212989) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Cve2005 orb - Cvetkovic, Z. & Olevic, D. 2005IAUDS.156....2C
Cve2005 Inf. Circ. 156, 2, 2005
 
 
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
22281+1215 BU 701 AB 2005 59 186 0.9 7.34 9.62 K0V NOD 222807.24+121455.5
22281+1215 BU 701 AB 2015 61 179 1.0 7.34 9.62 K0V O 222807.24+121455.5
22281+1215 BU 701 AB 2017 62 179 1.1 7.34 9.62 K0V O 222807.24+121455.5

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

 
 
WDS 22281+1215 BU 701 AB (HD 212989) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22281+1215 BU 701 AB (HD 212989) : MEASURES
 
 
No records found.

 
 
WDS 22281+1215 (HD 212989) : VIRTUAL EYEPIECE
 
 

22281+1215 BU 701A mag 7.34 Sp K0V 22281+1215 BU 701B sep 1.1 P.A. 178.90 mag 9.62 22281+1215 BU 701C sep 125.2 P.A. 133.60 mag 11.97 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 22281+1215 (HD 212989) : ALADIN DSS IMAGE @ 22h 28m 07.24s +12° 14' 55.5"
 
 
 
 
WDS 22281+1215 BU 701 AB (HD 212989) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22281+1215 BU 701AB distance=1' 22281+1215 BU 701AC distance=1' 22280+1225 J 580 distance=10' 22291+1212 BPM2452 distance=15' 22290+1200 BRT1360AB distance=20' 22290+1200 WSI 153Ba,Bb distance=20' 22284+1155 KPP4274 distance=21' 22274+1258 J 855 distance=44' 22271+1117 A 1231 distance=60' 22306+1309 HJ 296 distance=67' 22313+1304 BRT1361 distance=69' 22333+1203 HEI 411 distance=78' 22287+1333 BPM2451 distance=79' 22322+1311 BU 1308BC distance=83' 22322+1311 HJ 1776AB distance=83' 22333+1246 GRV 586 distance=84' 22317+1319 CBL 541 distance=84' 22338+1206 HJ 3121 distance=84' 22337+1230 HJ 298BC distance=84' 22337+1230 HJ 298AB distance=85' 22337+1230 HJ 298AC distance=85' 22334+1249 BPM2456 distance=85' 22314+1332 TDT3567 distance=91' 22249+1056 UC 4738 distance=93' 22253+1039 HJ 5527AB distance=93' 22253+1039 DAM 385AC distance=93' 22334+1122 BPM2455 distance=94' 22237+1107 A 630 distance=94' 22346+1210 DVG 48 distance=95' 22216+1207 BPM2445 distance=97' 22351+1153 SKF 288 distance=105' 22301+1034 BRT3368 distance=106' 22217+1125 TDT3484 distance=107' 22232+1338 KPP2646 distance=110' 22223+1105 STF2898 distance=111' 22238+1044 HJ 3109 distance=112' 22289+1024 HJ 964 distance=112' 22327+1346 GRV1240 distance=114' 22294+1407 KPP 9 distance=114' 22246+1359 BPM2448 distance=116' 22215+1323 GRV 569 distance=119' 22348+1326 SLW1279 distance=121' 22290+1420 HU 1317 distance=126' 22322+1407 SLW1276 distance=128' 22212+1054 A 628 distance=131' 22328+1024 OSO 180AB distance=131' 22328+1024 YSC 122Aa,Ab distance=131' 22306+1420 KPP1231 distance=131' 22371+1159 LEP 109 distance=134' 22204+1102 HJ 5547 distance=136' 22369+1130 ROE 130 distance=136' 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 22281+1215 BU 701 AB 179 1.1 1
Show 22281+1215 BU 701 AC 133 126.7 1
Show 22280+1225 J 580 108 4.3 10
Show 22291+1212 BPM2452 66 111.1 15
Show 22290+1200 BRT1360 AB 193 7.4 20
Show 22290+1200 WSI 153 Ba,Bb 215 2.1 20
Show 22284+1155 KPP4274 328 2.2 21
Show 22274+1258 J 855 74 3.9 44
Show 22271+1117 A 1231 260 2.0 60
Show 22306+1309 HJ 296 209 23.6 67
Show 22313+1304 BRT1361 135 3.4 69
Show 22333+1203 HEI 411 302 1.5 78
Show 22287+1333 BPM2451 59 100.6 79
Show 22322+1311 BU 1308 BC 167 1.1 83
Show 22322+1311 HJ 1776 AB 270 7.5 83
Show 22333+1246 GRV 586 307 48.1 84
Show 22317+1319 CBL 541 298 10.5 84
Show 22338+1206 HJ 3121 31 17.0 84
Show 22337+1230 HJ 298 BC 184 27.3 84
Show 22337+1230 HJ 298 AB 272 11.4 85
Show 22337+1230 HJ 298 AC 206 30.0 85
Show 22334+1249 BPM2456 23 48.5 85
Show 22314+1332 TDT3567 236 0.5 91
Show 22249+1056 UC 4738 129 42.8 93
Show 22253+1039 HJ 5527 AB 52 47.6 93
Show 22253+1039 DAM 385 AC 212 19.6 93
Show 22334+1122 BPM2455 35 76.8 94
Show 22237+1107 A 630 305 1.4 94
Show 22346+1210 DVG 48 113 18.6 95
Show 22216+1207 BPM2445 266 82.5 97
Show 22351+1153 SKF 288 169 11.8 105
Show 22301+1034 BRT3368 40 3.4 106
Show 22217+1125 TDT3484 257 0.3 107
Show 22232+1338 KPP2646 13 24.7 110
Show 22223+1105 STF2898 283 12.6 111
Show 22238+1044 HJ 3109 288 32.8 112
Show 22289+1024 HJ 964 150 16.0 112
Show 22327+1346 GRV1240 24 14.2 114
Show 22294+1407 KPP 9 123 4.6 114
Show 22246+1359 BPM2448 55 105.1 116
Show 22215+1323 GRV 569 249 52.5 119
Show 22348+1326 SLW1279 29 82.7 121
Show 22290+1420 HU 1317 124 0.4 126
Show 22322+1407 SLW1276 353 18.9 128
Show 22212+1054 A 628 225 1.3 131
Show 22328+1024 OSO 180 AB 170 11.6 131
Show 22328+1024 YSC 122 Aa,Ab 142 0.3 131
Show 22306+1420 KPP1231 269 9.5 131
Show 22371+1159 LEP 109 171 8.0 134
Show 22204+1102 HJ 5547 303 41.0 136
Show 22369+1130 ROE 130 279 1.0 136

 
 
WDS 22281+1215 : COMPONENTS
 
 
  A B
B pa=178.9°
sep=1.07"
 
C pa=133.6°
sep=125.20"
pa=133.2°
sep=124.45"
 
 
22281+1215 A
 
 
Name HD 212989 Coord arcsec 2000 222807.24+121455.5 Mag 7.34 Spectral class K0V (yellow-orange)
PmRA 191.00 PmDE -4.0 SAO 107935 HIP 110900
Tycho2 1154-01842-1 HD 212989 GC 31383 BD BD+11 4804
Tycho2
Tycho2 1154-01842-1 Pflag P RAmdeg 337.03065587 DEmdeg 12.24871084
PmRA 191.0 PmDE -3.9 E RAmdeg 5 E DEmdeg 6
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.63 EpDEm 1991.48
Num 7 Q RAmdeg 1.0 Q DEmdeg 0.5 Q pmRA 1.0
Q pmDE 0.4 BTmag 8.434 E BTmag 0.017 VTmag 7.341
E VTmag 0.011 Prox 8 TYC T HIP 110900
CCDM A RAdeg 337.03021972 DEdeg 12.24873778 EpRA 1990 1.80
EpDE 1990 1.74 E RAdeg 4.9 E DEdeg 5.7 Posflg D
Corr -0.1
SAO
SAO 107935 DelFlag RA1950 PmRA1950 0.0147
DE1950 PmDE1950 0.006 Vmag 7.2 SpType K0
Double code Source 70 CatNum 31383 DM BD+11 4804
DMcomp BDsup HD 212989 M HD 0
GC 31383 RA1950rad 5.87148298 DE1950rad 0.20931943 PmRA2000 0.0148
PmDE2000 0.001
Hipparcos
Catalog H HIP 110900 Proxy H RAhms 22 28 07.24
DEdms +12 14 55.5 Vmag 7.1 VarFlag R Vmag G
RAdeg 337.03 DEdeg 12.2487 AstroRef A Plx 15.87
CCDM 22282+1214 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 199 Rho 0.925 HD 212989 BD BD+11 4804
CD CP Dm number +11 4804 VIred 0.9
SpType K0V R SpType Coord arcsec 2000 222807.24+121455.5
Hipparcos 2
HIP 110900 Sn 15 So 3 Nc 2
RArad 5.8822863648 DErad 0.2137808228 Plx 15.06 PmRA 196.45
PmDE -9.98 E RArad 0.62 E DErad 0.7 E Plx 0.84
E pmRA 0.78 E pmDE 0.95 Hpmag 7.2625 E Hpmag 0.001
SHp 0.009 VA 0 BV 0.894 E BV 0.003
VI 0.9
 
 
22281+1215 B
 
 
Coord arcsec 2000 222807.24+121454.4 Mag 9.62 PmRA 191.00 PmDE -4.0
Tycho2 1154-01842-2 Calc delta mag 2.28 Calc coord yes
Tycho2
Tycho2 1154-01842-2 Pflag P RAmdeg 337.03065587 DEmdeg 12.24871084
PmRA 191.0 PmDE -3.9 E RAmdeg 5 E DEmdeg 6
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.63 EpDEm 1991.48
Num 7 Q RAmdeg 1.0 Q DEmdeg 0.5 Q pmRA 1.0
Q pmDE 0.4 BTmag 10.348 E BTmag 0.038 VTmag 9.622
E VTmag 0.029 Prox 8 TYC T HIP 110900
CCDM B RAdeg 337.03011611 DEdeg 12.24852833 EpRA 1990 1.80
EpDE 1990 1.74 E RAdeg 18.9 E DEdeg 23.7 Posflg D
Corr -0.1
 
 
22281+1215 C
 
 
Coord arcsec 2000 222813.43+121329.2 Mag 11.97 PmRA 191.00 PmDE -125.0
Calc delta mag 4.63 Calc coord yes