10214-2616 HDS 1491 (HD 89817)

 
 
10h 21m 24.30s -26° 15' 43.8" P.A. 310.00 sep 0.1 mag 8.58,10.13 Sp F7/F8V dist. 86.73 pc (282.91 l.y.)
 
 
Coord 2000 10214-2616 Discov num HDS1491 Comp Coord arcsec 2000 10 21 24.30 -26 15 43.8
Date first 1991 Date last 2021 Obs 15
Pa first 65 Pa last 309.8 P.A. Now (θ) 255.1°
Sep first 0.2 Sep last 0.095 Sep. Now (ρ) 0.081"
Mag pri 8.58 Mag sec 10.13 delta mag (ΔM) 1.55 Spectral class F7/F8V (yellow-white)
Pri motion ra -040 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 89817 Constellation Hydra SAO 178720 HIP 50724
Tycho2 6627-01441-1 Gaia DR2 5472035042322559232 HD 89817 CD CD-25 7957
CP CP-25 4546 Distance 86.73 Distance ly 282.91
 
 
ORBITAL ELEMENTS
 
 
Period (P)22.1y Periastron (T)2022.75y Semi-major axis (a)0.113a
Eccentricity (e)0.287 Inclination (i)180° Longitude of periastron (ω)
Node (Ω)262.8° Notes ReferenceTok2019c
Equinox Last observation2018 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 282.6 0.082
2001 252.1 0.081
2002 222.8 0.085
2003 197.4 0.093
2004 176.3 0.102
2005 158.7 0.111
2006 143.9 0.120
2007 131.0 0.128
2008 119.5 0.135
2009 108.9 0.140
2010 99.0 0.143
2011 89.4 0.145
2012 80.0 0.145
2013 70.5 0.144
2014 60.7 0.141
2015 50.4 0.137
2016 39.3 0.131
2017 27.0 0.124
2018 13.1 0.115
2019 356.7 0.106
2020 337.1 0.096
2021 313.5 0.088
2022 285.6 0.082
2023 255.1 0.081
2024 225.6 0.084
2025 199.8 0.092
2026 178.2 0.101
2027 160.4 0.111
2028 145.3 0.120
2029 132.2 0.127
2030 120.6 0.134


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



 
 


wds10214-2616a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 10214-2616 HDS 1491 (HD 89817) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2019c St j Tokovinin, A., Mason, B.D., Mendez, R.A., Horch, E.P. & Briceno, C. 2019AJ....158...48T
Tok2019c +orb AJ 158, 48, 2019
 
 
DISCOVERER
 
 
idgroup discov author
1 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
10214-2616 HDS1491 1991 1 65 0.2 8.58 10.13 F7/F8V 102124.30-261543.8
10214-2616 HDS1491 2015 2 50 0.1 8.58 10.13 F7/F8V 102124.30-261543.8
10214-2616 HDS1491 2016 8 28 0.1 8.58 10.13 F7/F8V 102124.30-261543.8
10214-2616 HDS1491 2018 11 357 0.1 8.58 10.13 F7/F8V 102124.30-261543.8
10214-2616 HDS1491 2019 12 351 0.1 8.58 10.13 F7/F8V O 102124.30-261543.8
10214-2616 HDS1491 2020 14 318 0.1 8.58 10.13 F7/F8V O 102124.30-261543.8
10214-2616 HDS1491 2021 15 310 0.1 8.58 10.13 F7/F8V O 102124.30-261543.8

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

 
 
WDS 10214-2616 HDS 1491 (HD 89817) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 10214-2616 HDS 1491 (HD 89817) : MEASURES
 
 
No records found.

 
 
WDS 10214-2616 (HD 89817) : VIRTUAL EYEPIECE
 
 

10214-2616 HDS1491A mag 8.58 Sp F7/F8V 10214-2616 HDS1491B sep 0.1 P.A. 312.90 mag 10.13 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 10214-2616 (HD 89817) : ALADIN DSS IMAGE @ 10h 21m 24.30s -26° 15' 43.8"
 
 
 
 
WDS 10214-2616 HDS 1491 (HD 89817) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


10214-2616  HDS1491 distance=1' 10226-2550  NSN 308 distance=31' 10189-2636  KPP2933 distance=40' 10219-2536  B   196 distance=41' 10188-2638  RST 482 distance=42' 10186-2637  DAM2288 distance=44' 10246-2558  RST2688 distance=46' 10186-2642  DAM2289 distance=46' 10250-2556  DAM2356 distance=53' 10249-2651  BRT2979 distance=59' 10261-2609  I  1199BC distance=64' 10261-2609  I  1199AB distance=64' 10194-2517  RSS 231 distance=65' 10182-2712  SKF1892 distance=71' 10257-2659  B   198 distance=73' 10247-2717  B  2241 distance=76' 10198-2459  J  1564 distance=80' 10196-2457  UC 1912 distance=83' 10191-2733  UC 1911 distance=84' 10212-2452  LDS3981 distance=84' 10193-2736  RST1500 distance=85' 10266-2709  B  2242 distance=88' 10282-2548  FIN 308AB distance=96' 10282-2548  B   199AB,C distance=96' 10145-2514  DON 397 distance=113' 10149-2738  RST1492 distance=120' 10304-2638  DAM2394 distance=123' 10147-2741  DAM2173 distance=124' 10151-2445  DON 399 distance=125' 10148-2449  DAM2175 distance=125' 10147-2744  RST1490 distance=127' 10309-2629  UC 1946 distance=128' 10308-2644  RST 493 distance=129' 10287-2753  RST1511 distance=137' 10122-2716  B   195 distance=138' 10316-2534  UC 1947 distance=144' 10304-2453  HJ 4322 distance=147' 10227-2350  B   197 distance=147' 10105-2631  RST2679 distance=147' 10104-2628  KPP2932 distance=149' 10210-2844  RSS 233 distance=149' 10265-2403  RST2691 distance=150' 10227-2346  B  2238 distance=151' 10287-2421  DAM2376 distance=152' 10283-2416  TOK 537AB distance=152' 10283-2416  TOK 537AC distance=152' 10283-2416  TOK 537Aa,Ab distance=152' 10276-2824  RST1510 distance=154' 10100-2559  NSN 307 distance=155' 10328-2644  DAM2417 distance=155' 10329-2637  HDS1513 distance=156' 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 10214-2616 HDS1491 310 0.1 1
Show 10226-2550 NSN 308 158 6.1 31
Show 10189-2636 KPP2933 131 3.7 40
Show 10219-2536 B 196 288 0.5 41
Show 10188-2638 RST 482 176 1.2 42
Show 10186-2637 DAM2288 27 4.3 44
Show 10246-2558 RST2688 98 1.1 46
Show 10186-2642 DAM2289 57 1.2 46
Show 10250-2556 DAM2356 27 1.5 53
Show 10249-2651 BRT2979 323 3.7 59
Show 10261-2609 I 1199 BC 214 2.0 64
Show 10261-2609 I 1199 AB 202 9.8 64
Show 10194-2517 RSS 231 87 8.4 65
Show 10182-2712 SKF1892 119 5.0 71
Show 10257-2659 B 198 142 0.2 73
Show 10247-2717 B 2241 303 11.4 76
Show 10198-2459 J 1564 123 5.0 80
Show 10196-2457 UC 1912 352 59.9 83
Show 10191-2733 UC 1911 276 7.6 84
Show 10212-2452 LDS3981 40 31.3 84
Show 10193-2736 RST1500 74 3.9 85
Show 10266-2709 B 2242 333 8.4 88
Show 10282-2548 FIN 308 AB 182 0.1 96
Show 10282-2548 B 199 AB,C 174 1.2 96
Show 10145-2514 DON 397 29 0.6 113
Show 10149-2738 RST1492 175 0.4 120
Show 10304-2638 DAM2394 242 4.9 123
Show 10147-2741 DAM2173 71 1.4 124
Show 10151-2445 DON 399 325 0.3 125
Show 10148-2449 DAM2175 130 1.5 125
Show 10147-2744 RST1490 188 0.6 127
Show 10309-2629 UC 1946 29 29.4 128
Show 10308-2644 RST 493 336 1.0 129
Show 10287-2753 RST1511 221 4.4 137
Show 10122-2716 B 195 298 1.3 138
Show 10316-2534 UC 1947 265 30.7 144
Show 10304-2453 HJ 4322 105 13.6 147
Show 10227-2350 B 197 130 0.3 147
Show 10105-2631 RST2679 5 3.1 147
Show 10104-2628 KPP2932 22 3.5 149
Show 10210-2844 RSS 233 320 7.8 149
Show 10265-2403 RST2691 100 2.5 150
Show 10227-2346 B 2238 85 11.9 151
Show 10287-2421 DAM2376 209 3.5 152
Show 10283-2416 TOK 537 AB 95 999.9 152
Show 10283-2416 TOK 537 AC 59 999.9 152
Show 10283-2416 TOK 537 Aa,Ab 130 0.1 152
Show 10276-2824 RST1510 73 0.4 154
Show 10100-2559 NSN 307 32 2.1 155
Show 10328-2644 DAM2417 29 1.5 155
Show 10329-2637 HDS1513 210 0.5 156

 
 
WDS 10214-2616 : COMPONENTS
 
 
  A
B pa=312.9°
sep=0.09"
 
 
10214-2616 A
 
 
Componente originario normalizzato AB Name HD 89817 Coord arcsec 2000 102124.30-261543.8 Mag 8.58
Spectral class F7/F8V (yellow-white) PmRA -40.00 PmDE -16.0 SAO 178720
HIP 50724 Tycho2 6627-01441-1 HD 89817 CD CD-25 7957
CP CP-25 4546
Tycho2
Tycho2 6627-01441-1 Pflag RAmdeg 155.35111425 DEmdeg -26.26219412
PmRA -44.9 PmDE -9.9 E RAmdeg 7 E DEmdeg 8
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.08 EpDEm 1991.06
Num 5 Q RAmdeg 0.7 Q DEmdeg 1.5 Q pmRA 0.6
Q pmDE 1.6 BTmag 8.895 E BTmag 0.018 VTmag 8.291
E VTmag 0.013 Prox 999 TYC T HIP 50724
CCDM AB RAdeg 155.35122944 DEdeg -26.26217194 EpRA 1990 1.72
EpDE 1990 1.82 E RAdeg 6.9 E DEdeg 7.5 Posflg P
Corr 0.1
SAO
SAO 178720 DelFlag RA1950 PmRA1950 -0.0021
DE1950 PmDE1950 -0.007 Vmag 8.2 SpType F8
Double code Source 25 CatNum 8118 DM CD-25 7957
DMcomp BDsup HD 89817 M HD 0
GC RA1950rad 2.70122424 DE1950rad -0.45395432 PmRA2000 -0.0019
PmDE2000 -0.003
Hipparcos
Catalog H HIP 50724 Proxy H RAhms 10 21 24.30
DEdms -26 15 43.8 Vmag 8.22 VarFlag R Vmag H
RAdeg 155.351 DEdeg -26.2622 AstroRef * Plx 10.06
CCDM 10214-2616 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source S Qual B M HIP AB
Theta 65 Rho 0.15 HD 89817 BD
CD CD-25 7957 CP CP-25 4546 Dm number -25 7957 VIred 0.64
SpType F7/F8V R SpType Coord arcsec 2000 102124.30-261543.8
Hipparcos 2
HIP 50724 Sn 55 So 3 Nc 2
RArad 2.7113906012 DErad -0.4583613208 Plx 11.53 PmRA -39.37
PmDE -15.01 E RArad 0.7 E DErad 0.52 E Plx 0.72
E pmRA 0.86 E pmDE 0.7 Hpmag 8.3455 E Hpmag 0.0015
SHp 0.013 VA 0 BV 0.56 E BV 0.016
VI 0.63
CCDM
Ccdm 10214-2616 RComp Comp A Note1
Note2 Discov num DRAs 0.27 DDEs 16.0
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.6 Sp F7 PmNote *
PmRA -40 PmDE -16 Dm number -25 7957 Cat1 CD
Name2 178720 Cat2 SAO HD 89817 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 50724
 
 
10214-2616 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 102124.30-261543.7 Mag 10.13 Calc delta mag 1.55
Calc coord yes
CCDM
Ccdm 10214-2616 RComp Comp B Note1
Note2 Discov num HDS DRAs 0.28 DDEs 16.1
R dRAs 82 Year 1991 Theta 65 Rho 0.2
Obs 1 Vmag 10.1 Sp PmNote *
PmRA -40 PmDE -16 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 50724