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Current system
02312-7822
HDS 328
HD 16421


Nearby doubles
41' : 02437-7807
HJ 3539

42' : 02249-7745
HJ 3508

45' : 02331-7738
BVD 25AB

51' : 02145-7827
NSN 160

52' : 02190-7858
KPP3487

54' : 02413-7906
KPP 644

56' : 02378-7915
TVB 36

66' : 02505-7754
UC 825

71' : 02261-7931
TDS2248

87' : 02141-7933
KPP1214

87' : 02221-7700
UC 723

91' : 02426-7947
TOK 362

93' : 02338-7650
JSP 41

99' : 02222-7648
UC 725

108' : 02161-7646
KPP 991

115' : 02184-7635
TDS2196

121' : 02509-7639
JSP 44AB

138' : 02154-8032
HDS 299

144' : 02341-8045
HJ 3530AB

149' : 02333-7554
HJ 3522AB

149' : 02181-8047
NSN 158

157' : 02511-7600
JSP 43

157' : 02126-7558
JSP 37

159' : 02213-8058
TDS2222

167' : 02332-7535
JSP 40

175' : 02508-7540
KPP2398



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

02312-7822 HDS 328 (HD 16421)

 
 
02h 31m 13.26s -78° 22' 00.3" P.A. 76.00 sep 1.5 mag 9.06,12.07 Sp F5V dist. 153.61 pc (501.08 l.y.)
 
 
Coord 2000 02312-7822 Discov num HDS 328 Comp Coord arcsec 2000 02 31 13.26 -78 22 00.3
Date first 1991 Date last 2016 Obs 4
Pa first 76 Pa last 76.3 P.A. Now (θ) 76.3°
Sep first 1.4 Sep last 1.461 Sep. Now (ρ) 1.461"
Mag pri 9.06 Mag sec 12.07 delta mag (ΔM) 3.01 Spectral class F5V (yellow-white)
Pri motion ra -008 Sec motion ra -008
Pri motion dec +018 Sec motion dec +020
Notes
rPM=0.093 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 16421 Constellation Hydrus SAO 255897 HIP 11715
Tycho2 9353-01040-1 Gaia DR2 4632839767448845184 HD 16421 CP CP-78 57
Distance 153.61 Distance ly 501.08
 
 
WDS 02312-7822 HDS 328 (HD 16421) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02312-7822 HDS 328 1991 2 75 1.4 9.06 12.07 F5V 023113.26-782200.3
02312-7822 HDS 328 2014 3 78 1.5 9.06 12.07 F5V 023113.26-782200.3
02312-7822 HDS 328 2016 4 76 1.5 9.06 12.07 F5V 023113.26-782200.3

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

 
 
WDS 02312-7822 HDS 328 (HD 16421) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 02312-7822 HDS 328 (HD 16421) : MEASURES
 
 
No records found.

 
 
WDS 02312-7822 (HD 16421) : VIRTUAL EYEPIECE
 
 

02312-7822 HDS 328A mag 9.06 Sp F5V 02312-7822 HDS 328B sep 0.5 P.A. 39.60 mag 12.07 virtual eyepiece
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Radius:
Components only
 
 
WDS 02312-7822 (HD 16421) : ALADIN DSS IMAGE @ 02h 31m 13.26s -78° 22' 00.3"
 
 
 
 
WDS 02312-7822 HDS 328 (HD 16421) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

02312-7822 HDS 328 distance=0' 02437-7807 HJ 3539 distance=41' 02249-7745 HJ 3508 distance=42' 02331-7738 BVD 25AB distance=45' 02145-7827 NSN 160 distance=51' 02190-7858 KPP3487 distance=52' 02413-7906 KPP 644 distance=54' 02378-7915 TVB 36 distance=56' 02505-7754 UC 825 distance=66' 02261-7931 TDS2248 distance=71' 02141-7933 KPP1214 distance=87' 02221-7700 UC 723 distance=87' 02426-7947 TOK 362 distance=91' 02338-7650 JSP 41 distance=93' 02222-7648 UC 725 distance=99' 02161-7646 KPP 991 distance=108' 02184-7635 TDS2196 distance=115' 02509-7639 JSP 44AB distance=121' 02509-7639 JSP 44AC distance=121' 02509-7639 JSP 44CD distance=122' 02154-8032 HDS 299 distance=138' 02341-8045 HJ 3530AB distance=144' 02341-8045 HJ 3530AC distance=144' 02333-7554 HJ 3522AB distance=149' 02333-7554 DAW 185BC distance=149' 02181-8047 NSN 158 distance=149' 02511-7600 JSP 43 distance=157' 02126-7558 JSP 37 distance=157' 02213-8058 TDS2222 distance=159' 02332-7535 JSP 40 distance=167' 02508-7540 KPP2398 distance=175' 02313-7458 TDS2274 distance=205' 02380-7448 KPP 602 distance=216' 02113-7455 KPP3481 distance=218' 02227-8229 HJ 3519 distance=248' 02366-7407 RSS 59AB distance=257' 02366-7407 SKF1041AC distance=257' 02439-7401 HEI 622 distance=267' 02467-7401 UC 806 distance=267' 02356-7349 TDS2295 distance=274' 02482-7333 KPP 771 distance=296' 02379-7327 HJ 3528 distance=296' 02379-8320 KPP 947 distance=298' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 02312-7822 HDS 328 76 1.5
Show 02437-7807 HJ 3539 65 7.8 41
Show 02249-7745 HJ 3508 103 16.5 42
Show 02331-7738 BVD 25 AB 272 40.7 45
Show 02145-7827 NSN 160 211 2.3 51
Show 02190-7858 KPP3487 307 1.9 52
Show 02413-7906 KPP 644 74 5.8 54
Show 02378-7915 TVB 36 7 24.3 56
Show 02505-7754 UC 825 259 43.9 66
Show 02261-7931 TDS2248 59 0.6 71
Show 02141-7933 KPP1214 201 9.4 87
Show 02221-7700 UC 723 347 72.1 87
Show 02426-7947 TOK 362 115 0.7 91
Show 02338-7650 JSP 41 127 0.7 93
Show 02222-7648 UC 725 279 11.0 99
Show 02161-7646 KPP 991 283 8.0 108
Show 02184-7635 TDS2196 85 0.4 115
Show 02509-7639 JSP 44 AB 33 0.2 121
Show 02509-7639 JSP 44 AC 10 36.7 121
Show 02509-7639 JSP 44 CD 269 4.5 122
Show 02154-8032 HDS 299 338 0.1 138
Show 02341-8045 HJ 3530 AB 212 17.0 144
Show 02341-8045 HJ 3530 AC 166 20.4 144
Show 02333-7554 HJ 3522 AB 285 40.8 149
Show 02333-7554 DAW 185 BC 351 9.4 149
Show 02181-8047 NSN 158 161 12.4 149
Show 02511-7600 JSP 43 268 1.4 157
Show 02126-7558 JSP 37 345 2.7 157
Show 02213-8058 TDS2222 118 0.4 159
Show 02332-7535 JSP 40 169 2.3 167
Show 02508-7540 KPP2398 209 20.7 175
Show 02313-7458 TDS2274 65 0.5 205
Show 02380-7448 KPP 602 95 5.5 216
Show 02113-7455 KPP3481 201 1.8 218
Show 02227-8229 HJ 3519 129 31.1 248
Show 02366-7407 RSS 59 AB 277 18.4 257
Show 02366-7407 SKF1041 AC 234 9.6 257
Show 02439-7401 HEI 622 205 1.7 267
Show 02467-7401 UC 806 59 6.9 267
Show 02356-7349 TDS2295 193 0.7 274
Show 02482-7333 KPP 771 279 6.7 296
Show 02379-7327 HJ 3528 201 17.5 296
Show 02379-8320 KPP 947 64 7.8 298

 
 
WDS 02312-7822 : COMPONENTS
 
 
  A
B pa=39.6°
sep=0.45"
 
 
02312-7822 A
 
 
Componente originario normalizzato AB Name HD 16421 Coord arcsec 2000 023113.26-782200.3 Mag 9.06
Spectral class F5V (yellow-white) PmRA -8.00 PmDE 18.0 SAO 255897
HIP 11715 Tycho2 9353-01040-1 HD 16421 CP CP-78 57
Tycho2
Tycho2 9353-01040-1 Pflag RAmdeg 37.80525721 DEmdeg -78.36674045
PmRA -8.0 PmDE 17.6 E RAmdeg 8 E DEmdeg 9
E pmRA 1.4 E pmDE 1.5 EpRAm 1990.77 EpDEm 1990.68
Num 7 Q RAmdeg 0.9 Q DEmdeg 0.7 Q pmRA 0.9
Q pmDE 0.7 BTmag 9.497 E BTmag 0.018 VTmag 9.064
E VTmag 0.015 Prox 14 TYC T HIP 11715
CCDM A RAdeg 37.80534833 DEdeg -78.36678167 EpRA 1990 1.69
EpDE 1990 1.64 E RAdeg 8.3 E DEdeg 8.6 Posflg
Corr 0.0
SAO
SAO 255897 DelFlag RA1950 PmRA1950 -0.0131
DE1950 PmDE1950 -0.01 Vmag 8.2 SpType A5
Double code Source 61 CatNum 548 DM CP-78 57
DMcomp BDsup HD 16421 M HD 0
GC RA1950rad 0.66325356 DE1950rad -1.3716072 PmRA2000 -0.0143
PmDE2000 -0.016
Hipparcos
Catalog H HIP 11715 Proxy H RAhms 02 31 13.28
DEdms -78 22 00.4 Vmag 8.99 VarFlag R Vmag H
RAdeg 37.8053 DEdeg -78.3668 AstroRef A Plx 6.95
CCDM 02312-7822 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 76 Rho 1.393 HD 16421 BD
CD CP CP-78 57 Dm number -78 57 VIred 0.46
SpType F5V R SpType Coord arcsec 2000 023113.28-782200.4
Hipparcos 2
HIP 11715 Sn 15 So 3 Nc 2
RArad 0.6598277828 DErad -1.367758329 Plx 6.51 PmRA -6.17
PmDE 20.33 E RArad 0.71 E DErad 0.65 E Plx 0.8
E pmRA 0.84 E pmDE 0.75 Hpmag 9.0845 E Hpmag 0.0019
SHp 0.017 VA 0 BV 0.49 E BV 0.1
VI 0.46
CCDM
Ccdm 02312-7822 RComp Comp A Note1
Note2 Discov num DRAs 1.26 DDEs -0.3
R dRAs 82 Year Theta Rho
Obs 2 Vmag 9.2 Sp F5 PmNote *
PmRA -8 PmDE 20 Dm number -78 57 Cat1 CPD
Name2 255897 Cat2 SAO HD 16421 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 11715
 
 
02312-7822 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 023113.35-782160.0 Mag 12.07 PmRA -8.00
PmDE 20.0 Calc delta mag 3.01 Calc coord yes
CCDM
Ccdm 02312-7822 RComp Comp B Note1
Note2 Discov num HDS DRAs 1.71 DDEs 0.1
R dRAs 82 Year 1991 Theta 76 Rho 1.4
Obs 1 Vmag 12.1 Sp PmNote *
PmRA -8 PmDE 20 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 11715