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Current system
21506+2216
HO 467 AC


Nearby doubles
21' : 21500+2157
TDT3184

21' : 21495+2202
COU 135

28' : 21501+2242
TDT3185

42' : 21487+2144
BRT2500

44' : 21537+2212
J 2361

44' : 21517+2134
BRT2501

46' : 21492+2256
LDS4910

50' : 21504+2303
J 3147AB

53' : 21508+2308
DAM 239

55' : 21467+2209
GMC 24

58' : 21465+2210
HO 465AB

62' : 21473+2134
GRV 505

70' : 21458+2155
HU 1656

74' : 21455+2156
AG 276

81' : 21495+2334
BU 1306AB

84' : 21481+2100
HU 378

85' : 21477+2330
CVR 921

88' : 21503+2343
POU5526

91' : 21461+2111
AG 277

92' : 21523+2345
CVR 253

97' : 21524+2348
POU5540

97' : 21547+2334
POU5560

97' : 21514+2352
POU5535

97' : 21497+2039
TDT3182

100' : 21484+2350
AZC 115AB

100' : 21513+2036
SKF2181



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21506+2216 HO 467 AC

 
 
21h 50m 37.14s +22° 15' 31.0" P.A. 334.00 sep 41.8 mag 9.05,13.61 Sp K2
 
 
Coord 2000 21506+2216 Discov num HO  467 Comp AC Coord arcsec 2000 21 50 37.14 +22 15 31.0
Date first 1892 Date last 2015 Obs 6
Pa first 339 Pa last 333.7 P.A. Now (θ) 333.7°
Sep first 39.6 Sep last 41.75 Sep. Now (ρ) 41.75"
Mag pri 9.05 Mag sec 13.61 delta mag (ΔM) 4.56 Spectral class K2 (yellow-orange)
Pri motion ra +022 Sec motion ra -036
Pri motion dec -009 Sec motion dec +007
Notes
rPM=1.641
This double is not physical.
 
 
21506+2216 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 207731 90048 21 50 37 +22 15 31 HO 467 AB 2010 32 221 2.6 8.10 10.30 2.20 Y
Show 90048 21 50 37 +22 15 31 HO 467 AC 2015 6 334 41.8 9.05 13.61 4.56 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus SAO 90048 Tycho2 1678-01108-1 Gaia DR2 1793424926578179456
HD 207731
 
 
WDS 21506+2216 HO 467 AC : NOTES
 
 
discov_num notes refcode
HO 467 Despite having an orbit, an optical pair based on parallax. Mlk2022
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2022 not - Chulkov, D. & Malkov, O. 2022MNRAS.517.2925C
Mlk2022 MNRAS 517, 2925, 2022
 
 
DISCOVERER
 
 
idgroup discov author
1 HO Hough, G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21506+2216 HO 467 AC 1999 4 334 41.5 8.10 12.00 K2 D 215037.14+221531.0
21506+2216 HO 467 AC 2001 5 334 41.0 8.10 12.00 K2 D 215037.14+221531.0
21506+2216 HO 467 AC 2015 6 334 41.8 9.05 13.61 K2 215037.14+221531.0

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

 
 
WDS 21506+2216 HO 467 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21506+2216 HO 467 AC : MEASURES
 
 
No records found.

 
 
WDS 21506+2216 : VIRTUAL EYEPIECE
 
 

21506+2216 HO 467A mag 8.1 Sp K2 21506+2216 HO 467B sep 2.5 P.A. 218.30 mag 10.3 21506+2216 HO 467C sep 41.2 P.A. 335.40 mag 13.61 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 21506+2216 : ALADIN DSS IMAGE @ 21h 50m 37.14s +22° 15' 31.0"
 
 
 
 
WDS 21506+2216 HO 467 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21506+2216 HO 467AC distance=0' 21500+2157 TDT3184 distance=21' 21495+2202 COU 135 distance=21' 21501+2242 TDT3185 distance=28' 21487+2144 BRT2500 distance=42' 21537+2212 J 2361 distance=44' 21517+2134 BRT2501 distance=44' 21492+2256 LDS4910 distance=46' 21504+2303 J 3147AB distance=50' 21504+2303 DAM 238AC distance=50' 21508+2308 DAM 239 distance=53' 21467+2209 GMC 24 distance=55' 21465+2210 HDS3101Aa,Ab distance=58' 21465+2210 HO 465AB distance=58' 21465+2210 HO 465BC distance=59' 21473+2134 GRV 505 distance=62' 21458+2155 HU 1656 distance=70' 21455+2156 AG 276 distance=74' 21495+2334 BU 1306AB distance=81' 21495+2334 BU 1306A,CD distance=81' 21495+2334 BU 1306CD distance=81' 21495+2334 POU5518B,CD distance=81' 21481+2100 HU 378 distance=84' 21477+2330 CVR 921 distance=85' 21503+2343 POU5526 distance=88' 21461+2111 AG 277 distance=91' 21523+2345 CVR 253 distance=92' 21524+2348 POU5540 distance=97' 21547+2334 POU5560 distance=97' 21514+2352 POU5535 distance=97' 21497+2039 TDT3182 distance=97' 21484+2350 UC 4570BC distance=100' 21484+2350 AZC 115AB distance=100' 21484+2350 UC 4570AC distance=100' 21513+2036 SKF2181 distance=100' 21535+2347 POU5550 distance=100' 21507+2356 POU5531 distance=102' 21457+2100 UC 4553 distance=102' 21453+2325 POU5484 distance=102' 21579+2224 GRV 524 distance=103' 21548+2340 POU5561 distance=103' 21529+2354 POU5545 distance=104' 21434+2147 COU 536 distance=105' 21580+2235 UC 4614 distance=105' 21431+2157 BRT2499 distance=106' 21551+2345 POU5564 distance=110' 21429+2152 HJ 1683AB distance=110' 21429+2152 HJ 1683AC distance=110' 21429+2152 ABH 150AD distance=110' 21493+2404 POU5515 distance=111' 21564+2335 HJ 1708 distance=114' 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 21506+2216 HO 467 AB 221 2.6
Show 21506+2216 HO 467 AC 334 41.8
Show 21500+2157 TDT3184 171 2.6 21
Show 21495+2202 COU 135 302 9.2 21
Show 21501+2242 TDT3185 202 0.6 28
Show 21487+2144 BRT2500 243 4.6 42
Show 21537+2212 J 2361 114 7.5 44
Show 21517+2134 BRT2501 324 5.2 44
Show 21492+2256 LDS4910 143 35.7 46
Show 21504+2303 J 3147 AB 219 5.1 50
Show 21504+2303 DAM 238 AC 37 5.0 50
Show 21508+2308 DAM 239 328 9.5 53
Show 21467+2209 GMC 24 265 6.9 55
Show 21465+2210 HDS3101 Aa,Ab 22 0.1 58
Show 21465+2210 HO 465 AB 246 44.5 58
Show 21465+2210 HO 465 BC 80 4.9 59
Show 21473+2134 GRV 505 327 45.5 62
Show 21458+2155 HU 1656 305 2.2 70
Show 21455+2156 AG 276 1 2.0 74
Show 21495+2334 BU 1306 AB 302 32.0 81
Show 21495+2334 BU 1306 A,CD 272 34.5 81
Show 21495+2334 BU 1306 CD 348 2.0 81
Show 21495+2334 POU5518 B,CD 208 17.5 81
Show 21481+2100 HU 378 298 0.2 84
Show 21477+2330 CVR 921 297 24.3 85
Show 21503+2343 POU5526 353 19.2 88
Show 21461+2111 AG 277 62 2.7 91
Show 21523+2345 CVR 253 98 40.0 92
Show 21524+2348 POU5540 283 11.1 97
Show 21547+2334 POU5560 269 16.3 97
Show 21514+2352 POU5535 235 15.6 97
Show 21497+2039 TDT3182 210 1.9 97
Show 21484+2350 UC 4570 BC 270 66.6 100
Show 21484+2350 AZC 115 AB 131 22.2 100
Show 21484+2350 UC 4570 AC 253 52.0 100
Show 21513+2036 SKF2181 353 18.9 100
Show 21535+2347 POU5550 123 9.3 100
Show 21507+2356 POU5531 112 16.1 102
Show 21457+2100 UC 4553 184 63.7 102
Show 21453+2325 POU5484 331 14.6 102
Show 21579+2224 GRV 524 59 47.9 103
Show 21548+2340 POU5561 309 10.4 103
Show 21529+2354 POU5545 123 18.8 104
Show 21434+2147 COU 536 227 1.0 105
Show 21580+2235 UC 4614 229 12.4 105
Show 21431+2157 BRT2499 206 4.8 106
Show 21551+2345 POU5564 110 16.8 110
Show 21429+2152 HJ 1683 AB 169 12.6 110
Show 21429+2152 HJ 1683 AC 315 27.3 110
Show 21429+2152 ABH 150 AD 28 75.5 110
Show 21493+2404 POU5515 317 7.7 111

 
 
WDS 21506+2216 : COMPONENTS
 
 
  A B
B pa=218.3°
sep=2.50"
 
C pa=335.4°
sep=41.16"
pa=338.4°
sep=42.35"
 
 
21506+2216 A
 
 
Name HD 207731 Coord arcsec 2000 215037.14+221531.0 Mag 8.1 Spectral class K2 (yellow-orange)
PmRA 12.00 PmDE -23.0 SAO 90048 Tycho2 1678-01108-1
HD 207731 DM BD+21 4630
Tycho2
Tycho2 1678-01108-1 Pflag RAmdeg 327.65476038 DEmdeg 22.25862501
PmRA 22.4 PmDE -9.9 E RAmdeg 9 E DEmdeg 11
E pmRA 1.1 E pmDE 1.0 EpRAm 1990.44 EpDEm 1989.56
Num 9 Q RAmdeg 1.8 Q DEmdeg 1.8 Q pmRA 1.7
Q pmDE 1.9 BTmag 10.064 E BTmag 0.031 VTmag 8.536
E VTmag 0.015 Prox 999 TYC T HIP
CCDM RAdeg 327.65470611 DEdeg 22.25865111 EpRA 1990 1.68
EpDE 1990 1.59 E RAdeg 9.4 E DEdeg 11.2 Posflg
Corr -0.1
SAO
SAO 90048 DelFlag RA1950 PmRA1950 0.0013
DE1950 PmDE1950 -0.007 Vmag 8.5 SpType K2
Double code Source 35 CatNum 8426 DM BD+21 4630
DMcomp BDsup HD 207731 M HD 0
GC RA1950rad 5.70853066 DE1950rad 0.38439724 PmRA2000 0.0013
PmDE2000 -0.011
CCDM
Ccdm 21506+2216 RComp Comp A Note1
Note2 Discov num DRAs 1.10 DDEs -29.3
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.1 Sp K2 PmNote *
PmRA 28 PmDE -16 Dm number +21 4630 Cat1 BD
Name2 +22 2364 Cat2 AGK2/3 HD 207731 M HD
ADS BDS A15373 M ADS BDS N IDS IDS 21460N2147A
HIC
 
 
21506+2216 B
 
 
Coord arcsec 2000 215037.03+221529.0 Mag 10.3 Calc delta mag 2.2 Calc coord yes
CCDM
Ccdm 21506+2216 RComp Comp B Note1
Note2 Discov num HO 467 DRAs DDEs
R dRAs Year 1959 Theta 210 Rho 2.1
Obs 18 Vmag 10.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15373 M ADS BDS N IDS IDS 21460N2147B
HIC
 
 
21506+2216 C
 
 
Coord arcsec 2000 215035.91+221608.4 Mag 13.61 PmRA -36.00 PmDE 7.0
Calc delta mag 5.51 Calc coord yes
CCDM
Ccdm 21506+2216 RComp Comp C Note1
Note2 Discov num HO 467 DRAs DDEs
R dRAs Year 1905 Theta 338 Rho 40.1
Obs 3 Vmag 12.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15373 M ADS BDS N IDS IDS 21460N2147C
HIC