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Doubles in session


Current system
01312-0702
HDS 198
HD 9278


Nearby doubles
9' : 01306-0703
CVR 388

19' : 01303-0649
UC 567

40' : 01301-0737
UC 566

46' : 01284-0720
KPP2521

58' : 01349-0648
KPP3458

62' : 01284-0617
KPP 598

63' : 01307-0804
A 441

67' : 01331-0602
LDS3290

75' : 01361-0657
LDS3294

75' : 01270-0621
HDS 189

75' : 01323-0549
KPP2688

80' : 01261-0723
CVR 385

82' : 01345-0806
LDS3291

88' : 01282-0817
BRT 351

97' : 01376-0645
CAB 3AB

98' : 01343-0827
A 314

103' : 01243-0655
BU 1163

107' : 01382-0640
TDS 56

108' : 01317-0515
KPP2256

111' : 01275-0526
CVR 387

113' : 01250-0557
STF 120

115' : 01248-0559
RST4176

122' : 01240-0800
HJ 1079

123' : 01391-0628
CVR1077

125' : 01300-0905
WIS 36

126' : 01274-0855
GWP 191



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

01312-0702 HDS 198 (HD 9278)

 
 
01h 31m 10.70s -07° 01' 58.0" P.A. 114.00 sep 0.0 mag 8.19,9.79 Sp K0 dist. 105.26 pc (343.36 l.y.)
 
 
Coord 2000 01312-0702 Discov num HDS 198 Comp Coord arcsec 2000 01 31 10.70 -07 01 58.0
Date first 1991 Date last 2021 Obs 13
Pa first 190 Pa last 113.9 P.A. Now (θ) 113.9°
Sep first 0.2 Sep last 0.049 Sep. Now (ρ) 0.049"
Mag pri 8.19 Mag sec 9.79 delta mag (ΔM) 1.6 Spectral class K0 (yellow-orange)
Pri motion ra -001 Sec motion ra
Pri motion dec -015 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 9278 Constellation Cetus SAO 129345 HIP 7075
Tycho2 4687-00409-1 Gaia DR2 2477926238342739968 HD 9278 BD BD-07 246
Distance 105.26 Distance ly 343.36
 
 
ORBITAL ELEMENTS
 
 
Period (P)51.6y Periastron (T)2028.8y Semi-major axis (a)0.176a
Eccentricity (e)0.7 Inclination (i)107.3° Longitude of periastron (ω)42.4°
Node (Ω)18.5° Notes ReferenceTok2018i
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 185.8 0.242
2001 185.0 0.238
2002 184.2 0.234
2003 183.3 0.229
2004 182.4 0.223
2005 181.5 0.217
2006 180.5 0.210
2007 179.4 0.203
2008 178.2 0.195
2009 177.0 0.186
2010 175.6 0.177
2011 174.0 0.167
2012 172.3 0.157
2013 170.3 0.147
2014 168.0 0.136
2015 165.3 0.124
2016 162.0 0.113
2017 157.9 0.101
2018 152.8 0.089
2019 146.2 0.077
2020 137.3 0.067
2021 125.2 0.057
2022 109.2 0.051
2023 90.2 0.048
2024 70.9 0.050
2025 54.3 0.055
2026 40.9 0.062
2027 29.7 0.065
2028 18.1 0.059
2029 356.7 0.034
2030 258.5 0.022


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


 
  


wds01312-0702a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 01312-0702 HDS 198 (HD 9278) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2018i orb - Tokovinin, A. 2018IAUDS.196....1T
Tok2018i Inf. Circ. 196, 1, 2018
 
 
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
01312-0702 HDS 198 2004 2 182 0.2 8.19 9.79 K0 D 013110.70-070158.0
01312-0702 HDS 198 2007 3 179 0.2 8.19 9.79 K0 D 013110.70-070158.0
01312-0702 HDS 198 2010 4 176 0.2 8.19 9.79 K0 D 013110.70-070158.0
01312-0702 HDS 198 2015 6 162 0.1 8.19 9.79 K0 013110.70-070158.0
01312-0702 HDS 198 2017 8 153 0.1 8.19 9.79 K0 013110.70-070158.0
01312-0702 HDS 198 2018 9 150 0.1 8.19 9.79 K0 O 013110.70-070158.0
01312-0702 HDS 198 2019 10 144 0.1 8.19 9.79 K0 O 013110.70-070158.0
01312-0702 HDS 198 2020 11 128 0.1 8.19 9.79 K0 O 013110.70-070158.0
01312-0702 HDS 198 2021 13 114 0.0 8.19 9.79 K0 O 013110.70-070158.0

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

 
 
WDS 01312-0702 HDS 198 (HD 9278) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 01312-0702 HDS 198 (HD 9278) : MEASURES
 
 
No records found.

 
 
WDS 01312-0702 (HD 9278) : VIRTUAL EYEPIECE
 
 

01312-0702 HDS 198A mag 8.19 Sp K0 01312-0702 HDS 198B mag 9.79 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 01312-0702 (HD 9278) : ALADIN DSS IMAGE @ 01h 31m 10.70s -07° 01' 58.0"
 
 
 
 
WDS 01312-0702 HDS 198 (HD 9278) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

01312-0702 HDS 198 distance=0' 01306-0703 CVR 388 distance=9' 01303-0649 UC 567 distance=19' 01301-0737 UC 566 distance=40' 01284-0720 KPP2521 distance=46' 01349-0648 KPP3458 distance=58' 01284-0617 KPP 598 distance=62' 01307-0804 A 441 distance=63' 01331-0602 LDS3290 distance=67' 01361-0657 LDS3294 distance=75' 01270-0621 HDS 189 distance=75' 01323-0549 KPP2688 distance=75' 01261-0723 CVR 385 distance=80' 01345-0806 LDS3291 distance=82' 01376-0645 BRG 5BC distance=87' 01376-0645 BWL 7BD distance=87' 01282-0817 BRT 351 distance=88' 01376-0645 CAB 3AB distance=97' 01343-0827 A 314 distance=98' 01243-0655 BU 1163 distance=103' 01382-0640 TDS 56 distance=107' 01317-0515 KPP2256 distance=108' 01275-0526 CVR 387 distance=111' 01250-0557 STF 120 distance=113' 01248-0559 RST4176 distance=115' 01240-0800 HJ 1079 distance=122' 01391-0628 CVR1077 distance=123' 01300-0905 WIS 36 distance=125' 01274-0855 GWP 191 distance=126' 01395-0724 RST4182 distance=127' 01240-0811 BU 505 distance=127' 01395-0612 J 1447 distance=135' 01281-0916 HU 7 distance=142' 01380-0522 GWP 207 distance=143' 01356-0447 LDS5339 distance=150' 01324-0930 LDS2204 distance=150' 01211-0707 WAM 1 distance=150' 01263-0440 TOK 204AB distance=160' 01263-0440 TOK 204Aa,Ab distance=160' 01350-0430 LDS5338 distance=161' 01213-0551 KPP3452 distance=163' 01210-0600 CVR 383 distance=164' 01280-0939 KPP1704 distance=164' 01365-0439 WIS 39 distance=164' 01424-0645 A 1 distance=168' 01376-0924 KUI 7 distance=172' 01418-0815 HJ 2073 distance=174' 01344-0412 LDS5336 distance=176' 01410-0524 TOK 228 distance=176' 01296-0405 ITF 122 distance=179' 01434-0705 STF 150 distance=182' 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 01312-0702 HDS 198 114 0.0
Show 01306-0703 CVR 388 222 8.7 9
Show 01303-0649 UC 567 297 34.4 19
Show 01301-0737 UC 566 345 29.0 40
Show 01284-0720 KPP2521 157 22.7 46
Show 01349-0648 KPP3458 243 3.0 58
Show 01284-0617 KPP 598 351 5.5 62
Show 01307-0804 A 441 272 1.4 63
Show 01331-0602 LDS3290 2 17.2 67
Show 01361-0657 LDS3294 260 3.5 75
Show 01270-0621 HDS 189 355 0.1 75
Show 01323-0549 KPP2688 97 11.4 75
Show 01261-0723 CVR 385 92 7.6 80
Show 01345-0806 LDS3291 294 7.6 82
Show 01376-0645 BRG 5 BC 191 5.1 87
Show 01376-0645 BWL 7 BD 23 6.7 87
Show 01282-0817 BRT 351 302 3.9 88
Show 01376-0645 CAB 3 AB 259 612.1 97
Show 01343-0827 A 314 5 0.4 98
Show 01243-0655 BU 1163 235 0.1 103
Show 01382-0640 TDS 56 183 2.1 107
Show 01317-0515 KPP2256 131 18.8 108
Show 01275-0526 CVR 387 155 27.2 111
Show 01250-0557 STF 120 278 7.4 113
Show 01248-0559 RST4176 299 3.3 115
Show 01240-0800 HJ 1079 295 100.1 122
Show 01391-0628 CVR1077 141 4.7 123
Show 01300-0905 WIS 36 62 999.9 125
Show 01274-0855 GWP 191 138 39.0 126
Show 01395-0724 RST4182 141 0.9 127
Show 01240-0811 BU 505 49 78.9 127
Show 01395-0612 J 1447 207 3.0 135
Show 01281-0916 HU 7 209 1.7 142
Show 01380-0522 GWP 207 79 55.3 143
Show 01356-0447 LDS5339 100 325.2 150
Show 01324-0930 LDS2204 238 17.6 150
Show 01211-0707 WAM 1 149 1.9 150
Show 01263-0440 TOK 204 AB 227 24.6 160
Show 01263-0440 TOK 204 Aa,Ab 242 0.0 160
Show 01350-0430 LDS5338 226 40.3 161
Show 01213-0551 KPP3452 330 2.1 163
Show 01210-0600 CVR 383 113 16.5 164
Show 01280-0939 KPP1704 175 13.2 164
Show 01365-0439 WIS 39 359 549.8 164
Show 01424-0645 A 1 257 0.8 168
Show 01376-0924 KUI 7 158 0.2 172
Show 01418-0815 HJ 2073 45 9.7 174
Show 01344-0412 LDS5336 352 344.0 176
Show 01410-0524 TOK 228 32 125.1 176
Show 01296-0405 ITF 122 254 12.8 179
Show 01434-0705 STF 150 196 35.7 182

 
 
WDS 01312-0702 : COMPONENTS
 
 
  A
B pa=114.1°
sep=0.05"
 
 
01312-0702 A
 
 
Componente originario normalizzato AB Name HD 9278 Coord arcsec 2000 013110.70-070158.0 Mag 8.19
Spectral class K0 (yellow-orange) PmRA -1.00 PmDE -15.0 SAO 129345
HIP 7075 Tycho2 4687-00409-1 HD 9278 BD BD-07 246
Tycho2
Tycho2 4687-00409-1 Pflag RAmdeg 22.79459199 DEmdeg -7.03282308
PmRA 1.9 PmDE -15.4 E RAmdeg 6 E DEmdeg 7
E pmRA 1.2 E pmDE 1.2 EpRAm 1990.95 EpDEm 1990.39
Num 10 Q RAmdeg 0.8 Q DEmdeg 1.4 Q pmRA 0.8
Q pmDE 1.5 BTmag 8.994 E BTmag 0.018 VTmag 7.928
E VTmag 0.012 Prox 564 TYC T HIP 7075
CCDM AB RAdeg 22.79458750 DEdeg -7.03278528 EpRA 1990 1.62
EpDE 1990 1.34 E RAdeg 5.7 E DEdeg 7.1 Posflg P
Corr -0.2
SAO
SAO 129345 DelFlag RA1950 PmRA1950 0.0007
DE1950 PmDE1950 -0.034 Vmag 7.9 SpType K0
Double code Source 26 CatNum 310 DM BD-07 246
DMcomp BDsup HD 9278 M HD 0
GC RA1950rad 0.38689394 DE1950rad -0.1272345 PmRA2000 0.001
PmDE2000 -0.038
Hipparcos
Catalog H HIP 7075 Proxy H RAhms 01 31 10.70
DEdms -07 01 58.0 Vmag 7.8 VarFlag R Vmag H
RAdeg 22.7946 DEdeg -7.03279 AstroRef * Plx 8.68
CCDM 01312-0702 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 190 Rho 0.24 HD 9278 BD BD-07 246
CD CP Dm number -07 246 VIred 0.92
SpType K0 R SpType Coord arcsec 2000 013110.70-070158.0
Hipparcos 2
HIP 7075 Sn 55 So 3 Nc 2
RArad 0.3978406058 DErad -0.1227452544 Plx 9.5 PmRA -1.6
PmDE -15.32 E RArad 0.69 E DErad 0.73 E Plx 0.99
E pmRA 0.84 E pmDE 0.88 Hpmag 7.9625 E Hpmag 0.0013
SHp 0.011 VA 0 BV 0.927 E BV 0.014
VI 0.92
CCDM
Ccdm 01312-0702 RComp Comp A Note1
Note2 Discov num DRAs -1.30 DDEs 1.9
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.2 Sp K0 PmNote *
PmRA -1 PmDE -15 Dm number -07 246 Cat1 BD
Name2 129345 Cat2 SAO HD 9278 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 7075
 
 
01312-0702 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 013110.70-070158.0 Mag 9.79 Calc delta mag 1.6
Calc coord yes
CCDM
Ccdm 01312-0702 RComp Comp B Note1
Note2 Discov num HDS DRAs -1.30 DDEs 1.6
R dRAs 82 Year 1991 Theta 190 Rho 0.2
Obs 1 Vmag 9.8 Sp PmNote *
PmRA -1 PmDE -15 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 7075