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Current system
16224+3348
H N 81 AC


Nearby doubles
22' : 16235+3404
CVR 819

31' : 16235+3321
VBS 26AB

47' : 16254+3416
COU 983

59' : 16233+3251
COU 619

61' : 16193+3301
SLW1170

62' : 16270+3329
DEA 86

64' : 16266+3423
SKF1408

64' : 16244+3250
LDS4667AB

66' : 16172+3341
COU 980AB

66' : 16269+3420
SKF1410

68' : 16272+3419
POP 1AB

75' : 16278+3317
SKF2663

80' : 16219+3229
KPP 369

85' : 16288+3413
RAO 669

88' : 16193+3229
CRB 113

89' : 16229+3220
H 5 38

91' : 16266+3502
SKF1406

96' : 16147+3352
STF2032AB

97' : 16248+3217
FAR 47

97' : 16220+3524
CVR 185

97' : 16301+3353
HU 1173

104' : 16152+3443
HDS2298

107' : 16181+3215
SHN 212

107' : 16261+3524
HDS2321

108' : 16138+3354
SHN 211

109' : 16237+3200
GOM 30



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

16224+3348 H N 81 AC

 
 
16h 22m 21.42s +33° 47' 56.9" P.A. 241.00 sep 68.1 mag 5.39,12.62 Sp M2IIIab dist. 196.46 pc (640.85 l.y.)
 
 
Coord 2000 16224+3348 Discov num H N  81 Comp AC Coord arcsec 2000 16 22 21.42 +33 47 56.9
Date first 1879 Date last 2002 Obs 7
Pa first 237 Pa last 241.2 P.A. Now (θ) 241.2°
Sep first 66.4 Sep last 68.051 Sep. Now (ρ) 68.051"
Mag pri 5.39 Mag sec 12.62 delta mag (ΔM) 7.23 Spectral class M2IIIab (red)
Pri motion ra +005 Sec motion ra -028
Pri motion dec -038 Sec motion dec -005
Notes N (See Notes)
rPM=1.218
This double is not physical.
 
 
16224+3348 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Nu1 CrB 65257 16 22 21 +33 47 57 STFA 29 AB 2011 37 164 354.7 5.39 5.58 0.19
Show 65257 16 22 21 +33 47 57 H N 81 AC 2002 7 241 68.1 5.39 12.62 7.23 <===
Show 65257 16 22 21 +33 47 57 STFA 29 AD 2020 7 153 277.2 5.39 11.53 6.14
Show 65259 16 22 29 +33 42 12 H 6 18 BD 2020 12 16 98.7 5.58 11.53 5.95
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV7676 CrB Constellation Corona Borealis SAO 65257 HIP 80197
Tycho2 2583-01993-1 Gaia DR2 1328712355665456000 HD 147749 HR 6107
GC 22026 BD BD+34 2773 Bayer Nu 1 Coronae Borealis Bayer name Nu1 CrB
Flamsteed 20 Coronae Borealis Flamsteed name 20 CrB Distance 196.46 Distance ly 640.85
Bayer greek ν1 CrB
 
 
WDS 16224+3348 H N 81 AC : NOTES
 
 
discov_num notes refcode
STFA 29 A: nu 1 CrB = 20 CrB
B: nu 2 CrB = 21 CrB
H 6 18 BD: H VI 18. Confusion in early component identification led to the BD Nsn2015
pair being mislabeled as BE.
 
 
REFERENCES
 
 
refcode metd author reference
Nsn2015 C - Nanson, J., Smith, S.C. & Thuemen, C. 2015JDSO...11...12N
Nsn2015 JDSO 11, 12, 2015
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16224+3348 H N 81 AC 1998 6 241 68.3 5.39 11.30 M2IIIab N D 162221.42+334756.9
16224+3348 H N 81 AC 2002 7 242 67.8 5.39 11.30 M2IIIab N D 162221.42+334756.9

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

 
 
WDS 16224+3348 H N 81 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16224+3348 H N 81 AC : MEASURES
 
 
No records found.

 
 
WDS 16224+3348 : VIRTUAL EYEPIECE
 
 

16224+3348 STFA 29A mag 5.39 Sp M2IIIab 16224+3348 H 6 18B sep 357.8 P.A. 164.30 mag 5.58 Sp K5III 16224+3348 H N 81C sep 59.4 P.A. 236.50 mag 12.62 16224+3348 STFA 29D sep 268.4 P.A. 157.20 mag 11.53 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 16224+3348 : ALADIN DSS IMAGE @ 16h 22m 21.42s +33° 47' 56.9"
 
 
 
 
WDS 16224+3348 H N 81 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16224+3348 H N 81AC distance=0' 16224+3348 H 6 18BD distance=6' 16235+3404 CVR 819 distance=22' 16235+3321 VBS 26AB distance=31' 16235+3321 BU 951AB,C distance=31' 16254+3416 COU 983 distance=47' 16233+3251 COU 619 distance=59' 16193+3301 SLW1170 distance=61' 16270+3329 DEA 86 distance=62' 16266+3423 SKF1408 distance=64' 16244+3250 LAW 25Ba,Bb distance=64' 16244+3250 LDS4667AB distance=64' 16172+3341 COU 980AB distance=66' 16172+3341 COU 980AC distance=66' 16269+3420 SKF1410 distance=66' 16272+3419 POP 1AB distance=68' 16272+3419 POP 1AC distance=68' 16278+3317 SKF2663 distance=75' 16219+3229 KPP 369 distance=80' 16288+3413 RAO 669 distance=85' 16193+3229 CRB 113 distance=88' 16229+3220 H 5 38 distance=89' 16266+3502 SKF1406 distance=91' 16147+3352 STF2032AB distance=96' 16147+3352 STF2032AC distance=96' 16147+3352 STF2032AE distance=96' 16147+3352 STF2032AD distance=96' 16147+3352 STF2032BD distance=96' 16248+3217 FAR 47 distance=97' 16220+3524 CVR 185 distance=97' 16301+3353 HU 1173 distance=97' 16152+3443 HDS2298 distance=104' 16147+3352 YSC 152Ea,Eb distance=105' 16147+3352 RAO 65EF distance=105' 16181+3215 SHN 212 distance=107' 16261+3524 HDS2321 distance=107' 16138+3354 SHN 211 distance=108' 16237+3200 GOM 30 distance=109' 16272+3521 COU 984 distance=110' 16246+3200 TDS9883 distance=113' 16153+3238 SLW1168 distance=113' 16315+3331 BU 816 distance=116' 16148+3239 UC 3141 distance=117' 16301+3459 KPP4002 distance=120' 16320+3334 LDS4676 distance=121' 16188+3154 HU 1172 distance=123' 16297+3216 TDS9923 distance=131' 16202+3557 SLW1172 distance=132' 16297+3214 TDS9924 distance=132' 16140+3510 POP 103 distance=133' 16268+3148 SKF 342 distance=133' 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 16224+3348 STFA 29 AB 164 354.7
Show 16224+3348 H N 81 AC 241 68.1
Show 16224+3348 STFA 29 AD 153 277.2
Show 16224+3348 H 6 18 BD 16 98.7 6
Show 16235+3404 CVR 819 218 7.9 22
Show 16235+3321 VBS 26 AB 17 0.1 31
Show 16235+3321 BU 951 AB,C 30 1.0 31
Show 16254+3416 COU 983 185 1.8 47
Show 16233+3251 COU 619 201 0.6 59
Show 16193+3301 SLW1170 191 156.8 61
Show 16270+3329 DEA 86 182 9.3 62
Show 16266+3423 SKF1408 359 1.9 64
Show 16244+3250 LAW 25 Ba,Bb 236 0.4 64
Show 16244+3250 LDS4667 AB 288 10.4 64
Show 16172+3341 COU 980 AB 340 0.5 66
Show 16172+3341 COU 980 AC 81 38.8 66
Show 16269+3420 SKF1410 256 1.1 66
Show 16272+3419 POP 1 AB 179 2.4 68
Show 16272+3419 POP 1 AC 201 40.6 68
Show 16278+3317 SKF2663 68 1.2 75
Show 16219+3229 KPP 369 31 4.7 80
Show 16288+3413 RAO 669 199 1.3 85
Show 16193+3229 CRB 113 83 23.5 88
Show 16229+3220 H 5 38 16 31.0 89
Show 16266+3502 SKF1406 235 1.2 91
Show 16147+3352 STF2032 AB 240 7.2 96
Show 16147+3352 STF2032 AC 91 27.7 96
Show 16147+3352 STF2032 AE 241 635.1 96
Show 16147+3352 STF2032 AD 82 95.3 96
Show 16147+3352 STF2032 BD 81 102.0 96
Show 16248+3217 FAR 47 298 0.1 97
Show 16220+3524 CVR 185 357 25.9 97
Show 16301+3353 HU 1173 66 0.2 97
Show 16152+3443 HDS2298 165 0.4 104
Show 16147+3352 YSC 152 Ea,Eb 29 0.5 105
Show 16147+3352 RAO 65 EF 239 30.7 105
Show 16181+3215 SHN 212 -1 0.4 107
Show 16261+3524 HDS2321 266 0.5 107
Show 16138+3354 SHN 211 -1 0.3 108
Show 16237+3200 GOM 30 126 537.0 109
Show 16272+3521 COU 984 356 0.6 110
Show 16246+3200 TDS9883 299 0.8 113
Show 16153+3238 SLW1168 74 23.4 113
Show 16315+3331 BU 816 221 4.9 116
Show 16148+3239 UC 3141 204 40.4 117
Show 16301+3459 KPP4002 292 1.8 120
Show 16320+3334 LDS4676 32 326.5 121
Show 16188+3154 HU 1172 328 1.7 123
Show 16297+3216 TDS9923 176 0.5 131
Show 16202+3557 SLW1172 2 157.3 132
Show 16297+3214 TDS9924 221 0.5 132

 
 
WDS 16224+3348 : COMPONENTS
 
 
  A B C
B pa=164.3°
sep=357.84"
 
C pa=236.5°
sep=59.42"
pa=334.8°
sep=344.44"
 
D pa=157.2°
sep=268.37"
pa=4.0°
sep=97.19"
pa=144.4°
sep=263.89"
 
 
16224+3348 A
 
 
Name Nu1 CrB Coord arcsec 2000 162221.42+334756.9 Mag 5.39 Spectral class M2IIIab (red)
PmRA 5.00 PmDE -38.0 SAO 65257 HIP 80197
Tycho2 2583-01993-1 HD 147749 HR 6107 GC 22026
BD BD+34 2773 Bayer Nu 1 Coronae Borealis Bayer name Nu1 CrB Flamsteed 20 Coronae Borealis
Flamsteed name 20 CrB
Tycho2
Tycho2 2583-01993-1 Pflag RAmdeg 245.58926746 DEmdeg 33.79905099
PmRA 4.1 PmDE -38.2 E RAmdeg 4 E DEmdeg 3
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.24 EpDEm 1991.54
Num 14 Q RAmdeg 0.5 Q DEmdeg 0.7 Q pmRA 0.5
Q pmDE 0.8 BTmag 7.314 E BTmag 0.015 VTmag 5.390
E VTmag 0.009 Prox 999 TYC T HIP 80197
CCDM RAdeg 245.58925583 DEdeg 33.79913917 EpRA 1990 1.52
EpDE 1990 1.69 E RAdeg 3.5 E DEdeg 3.3 Posflg
Corr -0.1
SAO
SAO 65257 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 -0.04 Vmag 5.4 SpType M0
Double code Source 70 CatNum 22026 DM BD+34 2773
DMcomp BDsup HD 147749 M HD 0
GC 22026 RA1950rad 4.27811956 DE1950rad 0.59193966 PmRA2000 0.0006
PmDE2000 -0.037
Hipparcos
Catalog H HIP 80197 Proxy RAhms 16 22 21.42
DEdms +33 47 56.9 Vmag 5.2 VarFlag 1 R Vmag H
RAdeg 245.589 DEdeg 33.7991 AstroRef Plx 5.87
CCDM 16224+3345 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 147749 BD BD+34 2773
CD CP Dm number +34 2773 VIred 1.96
SpType M2III R SpType Coord arcsec 2000 162221.42+334756.9
Hipparcos 2
HIP 80197 Sn 5 So 0 Nc 1
RArad 4.2863411282 DErad 0.5899063605 Plx 5.09 PmRA 4.97
PmDE -37.92 E RArad 0.14 E DErad 0.18 E Plx 0.22
E pmRA 0.16 E pmDE 0.23 Hpmag 5.2814 E Hpmag 0.0018
SHp 0.017 VA 2 BV 1.631 E BV 0.005
VI 2
 
 
16224+3348 B
 
 
Coord arcsec 2000 162229.21+334212.5 Coord calc 162229.21+334212.5 Mag 5.58 Spectral class K5III (yellow-orange)
PmRA -5.00 PmDE 51.0 SAO 65259 HIP 80214
Tycho2 2583-02106-1 HD 147767 HR 6108 GC 22029
BD BD+34 2774 Bayer Nu 2 Coronae Borealis Bayer name Nu2 CrB Flamsteed 21 Coronae Borealis
Flamsteed name 21 CrB Calc delta mag 0.19
Tycho2
Tycho2 2583-02106-1 Pflag RAmdeg 245.62174188 DEmdeg 33.70348512
PmRA -6.2 PmDE 51.9 E RAmdeg 4 E DEmdeg 3
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.30 EpDEm 1991.57
Num 14 Q RAmdeg 1.0 Q DEmdeg 1.7 Q pmRA 0.9
Q pmDE 1.6 BTmag 7.421 E BTmag 0.015 VTmag 5.576
E VTmag 0.009 Prox 999 TYC T HIP 80214
CCDM RAdeg 245.62175944 DEdeg 33.70336556 EpRA 1990 1.60
EpDE 1990 1.71 E RAdeg 3.6 E DEdeg 3.4 Posflg
Corr -0.1
SAO
SAO 65259 DelFlag RA1950 PmRA1950 -0.0008
DE1950 PmDE1950 0.056 Vmag 5.3 SpType K5
Double code Source 70 CatNum 22029 DM BD+34 2774
DMcomp BDsup HD 147767 M HD 0
GC 22029 RA1950rad 4.27867944 DE1950rad 0.59024928 PmRA2000 -0.0005
PmDE2000 0.059
Hipparcos
Catalog H HIP 80214 Proxy RAhms 16 22 29.22
DEdms +33 42 12.1 Vmag 5.4 VarFlag 1 R Vmag H
RAdeg 245.622 DEdeg 33.7034 AstroRef Plx 5.98
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 147767 BD BD+34 2774
CD CP Dm number +34 2774 VIred 1.57
SpType K5III R SpType Coord arcsec 2000 162229.22+334212.1
Hipparcos 2
HIP 80214 Sn 5 So 0 Nc 1
RArad 4.2869084228 DErad 0.5882345476 Plx 5.49 PmRA -5.42
PmDE 50.56 E RArad 0.15 E DErad 0.2 E Plx 0.24
E pmRA 0.17 E pmDE 0.24 Hpmag 5.5231 E Hpmag 0.0008
SHp 0.009 VA 0 BV 1.523 E BV 0.004
VI 1.57
 
 
16224+3348 C
 
 
Coord arcsec 2000 162217.44+334724.1 Mag 12.62 PmRA -28.00 PmDE -5.0
Calc delta mag 7.23 Calc coord yes
 
 
16224+3348 D
 
 
Coord arcsec 2000 162229.75+334349.5 Mag 11.53 PmRA -7.00 PmDE 7.0
Calc delta mag 6.14 Calc coord yes