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Doubles in session


Current system
09118-4218
HDS1332


Nearby doubles
15' : 09106-4221
I 1516

18' : 09133-4223
TDS6400

20' : 09136-4216
TDS6406

27' : 09097-4207
CPO 40

29' : 09143-4226
I 1129

34' : 09119-4251
TDS6386

53' : 09131-4128
CPO 41

55' : 09166-4204
TDS6438

60' : 09087-4306
ALD 43

61' : 09075-4255
TDS6330

62' : 09065-4200
B 2201AB

62' : 09105-4116
LDS 254

63' : 09144-4314
HJ 4191

66' : 09168-4252
DON 330

66' : 09059-4205
HJ 4176

68' : 09168-4257
DAM1589

69' : 09169-4256
DAM1590

69' : 09087-4317
TDS6350

72' : 09182-4218
TDS6455

73' : 09128-4329
HU 1456

75' : 09081-4320
I 823

75' : 09083-4321
DON 318

77' : 09076-4319
DON 314

78' : 09147-4328
KPP3779

80' : 09125-4337
HJ 4188AB

81' : 09080-4326
SEE 109
Alsuhail



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.

09118-4218 HDS1332

 
 
09h 11m 48.77s -42° 17' 42.6" P.A. 200.00 sep 0.2 mag 11.21,11.54 Sp K5V dist. 80.06 pc (261.16 l.y.)
 
 
Coord 2000
09118-4218
 Discov num
HDS1332
 Comp
Coord arcsec 2000
09 11 48.77 -42 17 42.6
Date first
1991
 Date last
2019
 Obs
6
Pa first
33
 Pa last
207
 P.A. Now (θ)
200°
Sep first
0.3
 Sep last
0.2
 Sep. Now (ρ)
0.21"
Mag pri
11.21
 Mag sec
11.54
 delta mag (ΔM)
0.33
 Spectral class
K5V (yellow-orange)
Pri motion ra
-218
 Sec motion ra
Pri motion dec
+186
 Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
207.4
 Precise sep
0.188
 Constellation
Vela
 HIP
45139
Tycho2
7686-03062-1
 Gaia DR2
5427375590128838656
 CD
CD-41 4886
 CP
CP-41 3427
Distance
80.06
 Distance ly
261.16
 last precise pa
207.4
 last precise sep
0.188
 
 
ORBITAL ELEMENTS
 
 
Period (P)113.447y Periastron (T)2012.227y Semi-major axis (a)0.313a
Eccentricity (e)0.5 Inclination (i)126.1° Longitude of periastron (ω)107.1°
Node (Ω)22.7° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.243 15.7
2001 0.230 12.8
2002 0.216 9.6
2003 0.201 6.0
2004 0.185 1.8
2005 0.169 356.7
2006 0.152 350.5
2007 0.135 342.7
2008 0.119 332.8
2009 0.105 320.1
2010 0.096 304.3
2011 0.093 286.4
2012 0.098 268.8
2013 0.108 253.6
2014 0.121 241.4
2015 0.136 231.8
2016 0.151 224.1
2017 0.166 217.8
2018 0.179 212.4
2019 0.191 207.8
2020 0.202 203.7
2021 0.211 200.0
2022 0.219 196.6
2023 0.226 193.4
2024 0.232 190.4
2025 0.237 187.5
2026 0.241 184.7
2027 0.244 182.0
2028 0.247 179.4
2029 0.249 176.8
2030 0.250 174.2


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


 
  


wds09118-4218a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09118-4218 HDS1332 1991 1 33 0.3 11.21 11.54 K5V 091148.93-421744.1
09118-4218 HDS1332 2015 2 232 0.1 11.21 11.54 K5V 091148.93-421744.1
09118-4218 HDS1332 2016 4 219 0.2 11.21 11.54 K5V 091148.77-421742.6
09118-4218 HDS1332 2018 5 212 0.2 11.21 11.54 K5V O 091148.77-421742.6
09118-4218 HDS1332 2019 6 207 0.2 11.21 11.54 K5V O 091148.77-421742.6

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