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Current system
04142-4608
RST 2338
HD 27019


Nearby doubles
20' : 04143-4627
UC 1136AB

20' : 04158-4558
NSN 198

41' : 04105-4554
TOI 415

49' : 04096-4606
LDS 111

54' : 04116-4521
DON 62

57' : 04187-4639
RST 102

59' : 04133-4510
UC 1134

61' : 04086-4552
RST 98AB

62' : 04082-4608
TDS2757

63' : 04099-4524
UC 1125AB

90' : 04118-4734
KPP2436

93' : 04153-4437
HJ 3634

99' : 04227-4526
RST5204

100' : 04114-4744
BRT 660

113' : 04058-4458
UC 1114

114' : 04116-4418
TDS2782

114' : 04167-4418
COO 21

117' : 04231-4719
BRT 663

118' : 04255-4601
LIT 11

123' : 04057-4443
KPP 552

124' : 04030-4529
TDS2729

125' : 04193-4416
HJ 3643

126' : 04025-4642
TDS2725

130' : 04206-4418
DON 65

131' : 04258-4518
RST5205

132' : 04214-4422
HJ 3645



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.

04142-4608 RST 2338 (HD 27019)

 
 
04h 14m 09.55s -46° 07' 56.0" P.A. 313.00 sep 0.1 mag 8.48,7.19 Sp F9+G7 dist. 45.13 pc (147.21 l.y.)
 
 
Coord 2000 04142-4608 Discov num RST2338 Comp Coord arcsec 2000 04 14 09.55 -46 07 56.0
Date first 1934 Date last 2020 Obs 49
Pa first 104 Pa last 312.8 P.A. Now (θ) 247.6°
Sep first 0.2 Sep last 0.067 Sep. Now (ρ) 0.174"
Mag pri 8.48 Mag sec 7.19 delta mag (ΔM) 1.29 Spectral class F9+G7 (yellow-white/yellow)
Pri motion ra +165 Sec motion ra
Pri motion dec -104 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 27019 Constellation Horologium SAO 216711 HIP 19758
Tycho2 8068-01630-1 Gaia DR2 4837303163043957248 HD 27019 GC 5126
CD CD-46 1347 CP CP-46 409 Distance 45.13 Distance ly 147.21
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)36.33y± 0.15 Periastron (T)1993.01y± 10 Semi-major axis (a)0.296a± 0.005
Eccentricity (e)0.011± 0.012 Inclination (i)55.6°± 3.5 Longitude of periastron (ω)166°± 12
Node (Ω)136.9°± 5 Notesn ReferenceDoc2016i
Equinox2000 Last observation2015 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 357.3 0.214
2001 9.2 0.193
2002 23.6 0.177
2003 40.3 0.168
2004 57.6 0.170
2005 73.7 0.181
2006 87.3 0.199
2007 98.5 0.221
2008 107.6 0.243
2009 115.2 0.263
2010 121.9 0.280
2011 127.9 0.292
2012 133.5 0.298
2013 139.0 0.299
2014 144.6 0.293
2015 150.5 0.282
2016 157.0 0.267
2017 164.4 0.247
2018 173.2 0.225
2019 184.0 0.203
2020 197.3 0.183
2021 213.1 0.170
2022 230.5 0.167
2023 247.6 0.174
2024 262.6 0.190
2025 274.9 0.210
2026 285.0 0.232
2027 293.3 0.253
2028 300.5 0.271
2029 306.8 0.284
2030 312.8 0.291


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


 
  


wds04142-4608c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)18.145y± 0.05 Periastron (T)2002.71y± 0.08 Semi-major axis (a)0.1941a± 0.0021
Eccentricity (e)0.631± 0.012 Inclination (i)30.6°± 1.4 Longitude of periastron (ω)138.9°± 6.5
Node (Ω)169.1°± 5.8 Notesn ReferenceTok2020e
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 177.6 0.193
2001 195.5 0.142
2002 238.9 0.082
2003 340.8 0.076
2004 39.4 0.113
2005 68.5 0.152
2006 86.0 0.187
2007 98.1 0.218
2008 107.5 0.245
2009 115.1 0.266
2010 121.7 0.282
2011 127.7 0.293
2012 133.4 0.299
2013 139.0 0.300
2014 144.6 0.294
2015 150.6 0.282
2016 157.3 0.264
2017 165.2 0.237
2018 175.7 0.200
2019 192.2 0.150
2020 229.0 0.090
2021 327.3 0.071
2022 33.5 0.108
2023 65.2 0.146
2024 83.9 0.182
2025 96.6 0.214
2026 106.2 0.241
2027 114.1 0.263
2028 120.8 0.280
2029 126.9 0.292
2030 132.6 0.299


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


 
  


wds04142-4608e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04142-4608 RST 2338 (HD 27019) : NOTES
 
 
discov_num notes refcode
RST2338 Half-period solution equally good, but gives large mass-sum.
More speckle obs needed (the only existing one erroneous?).
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 1.72 +/- 0.26, 2.26, and 1.07 Msun, respectively. Mlk2012
Gomez et al. (2016) derive dynamical parallax and component masses:
20.75 +/- 0.42 mas, 1.245 +/- 0.012 Msun, 0.954 +/- 0.009 Msun. Doc2016i
 
 
REFERENCES
 
 
refcode metd author reference
Doc2016i orb - Gomez, J., Docobo, J.A., Campo, P., & Mendez, R.A. 2016AJ....152..216G
Doc2016i AJ 152, 216, 2016
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Tok2020e St j Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. 2020AJ....160....7T
Tok2020e +orb AJ 160, 7, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04142-4608 RST2338 2007 38 286 0.2 8.48 7.19 F8/G0V NOD 041409.55-460756.0
04142-4608 RST2338 2008 39 293 0.3 8.48 7.19 F8/G0V NOD 041409.55-460756.0
04142-4608 RST2338 2010 42 308 0.3 8.48 7.19 F8/G0V NOD 041409.55-460756.0
04142-4608 RST2338 2013 44 320 0.3 8.48 7.19 F8/G0V NOD 041409.55-460756.0
04142-4608 RST2338 2014 45 325 0.3 8.48 7.19 F8/G0V NO 041409.55-460756.0
04142-4608 RST2338 2015 46 157 0.3 8.48 7.19 F8/G0V NO 041409.55-460756.0
04142-4608 RST2338 2018 47 177 0.2 8.48 7.19 F9+G7 NO 041409.55-460756.0
04142-4608 RST2338 2019 48 210 0.1 8.48 7.19 F9+G7 NO 041409.55-460756.0
04142-4608 RST2338 2020 49 313 0.1 8.48 7.19 F9+G7 NO 041409.55-460756.0

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

 
 
WDS 04142-4608 RST 2338 (HD 27019) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04142-4608 RST 2338 (HD 27019) : MEASURES
 
 
No records found.

 
 
WDS 04142-4608 (HD 27019) : VIRTUAL EYEPIECE
 
 

04142-4608 RST2338A mag 8.48 Sp F9 04142-4608 RST2338B mag 7.19 Sp G7 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 04142-4608 (HD 27019) : ALADIN DSS IMAGE @ 04h 14m 09.55s -46° 07' 56.0"
 
 
 
 
WDS 04142-4608 RST 2338 (HD 27019) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04142-4608 RST2338 distance=0' 04143-4627 UC 1136AB distance=20' 04158-4558 NSN 198 distance=20' 04105-4554 TOI 415 distance=41' 04096-4606 LDS 111 distance=49' 04116-4521 DON 62 distance=54' 04187-4639 RST 102 distance=57' 04133-4510 UC 1134 distance=59' 04086-4552 RST 98AB distance=61' 04086-4552 RST 98AC distance=61' 04082-4608 TDS2757 distance=62' 04099-4524 TDS2766Aa,Ab distance=63' 04099-4524 UC 1125AB distance=63' 04118-4734 KPP2436 distance=90' 04153-4437 HJ 3634 distance=93' 04227-4526 RST5204 distance=99' 04114-4744 BRT 660 distance=100' 04058-4458 UC 1114 distance=113' 04116-4418 TDS2782 distance=114' 04167-4418 COO 21 distance=114' 04231-4719 BRT 663 distance=117' 04255-4601 LIT 11 distance=118' 04057-4443 KPP 552 distance=123' 04030-4529 TDS2729 distance=124' 04193-4416 HJ 3643 distance=125' 04025-4642 TDS2725 distance=126' 04206-4418 DON 65 distance=130' 04258-4518 RST5205 distance=131' 04214-4422 HJ 3645 distance=132' 04160-4819 RST2340 distance=133' 04171-4358 TDS2808AB distance=134' 04146-4823 BRT 661 distance=135' 04036-4730 I 723 distance=136' 04084-4813 BVD 43 distance=139' 04037-4745 HU 1362 distance=144' 04038-4429 HDS 514Aa,Ab distance=148' 04038-4429 LCL 120AB distance=148' 04038-4429 SHY 458AC distance=148' 03599-4553 BRT 657 distance=149' 04186-4835 HDS 547 distance=155' 04043-4412 TDS2737 distance=156' 04012-4451 HJ 3616 distance=157' 04092-4340 TDS2762AB distance=157' 03595-4652 UC 1095 distance=159' 04073-4831 TDS2752 distance=160' 04244-4809 HU 1367 distance=161' 04121-4859 HJ 3630 distance=172' 04224-4337 HJ 3648 distance=175' 04268-4807 BRT 665 distance=176' 04273-4421 ELP 8AB distance=176' 04303-4506 I 1487 distance=181' 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 04142-4608 RST2338 313 0.1
Show 04143-4627 UC 1136 AB 347 24.6 20
Show 04158-4558 NSN 198 211 4.7 20
Show 04105-4554 TOI 415 90 2.2 41
Show 04096-4606 LDS 111 234 33.3 49
Show 04116-4521 DON 62 140 1.9 54
Show 04187-4639 RST 102 214 1.0 57
Show 04133-4510 UC 1134 323 49.8 59
Show 04086-4552 RST 98 AB 317 1.7 61
Show 04086-4552 RST 98 AC 306 18.4 61
Show 04082-4608 TDS2757 17 0.8 62
Show 04099-4524 TDS2766 Aa,Ab 284 0.4 63
Show 04099-4524 UC 1125 AB 93 39.6 63
Show 04118-4734 KPP2436 190 21.3 90
Show 04153-4437 HJ 3634 333 11.3 93
Show 04227-4526 RST5204 292 1.2 99
Show 04114-4744 BRT 660 68 2.6 100
Show 04058-4458 UC 1114 145 6.9 113
Show 04116-4418 TDS2782 28 0.5 114
Show 04167-4418 COO 21 350 2.0 114
Show 04231-4719 BRT 663 196 3.8 117
Show 04255-4601 LIT 11 87 21.9 118
Show 04057-4443 KPP 552 56 5.2 123
Show 04030-4529 TDS2729 138 0.7 124
Show 04193-4416 HJ 3643 115 70.3 125
Show 04025-4642 TDS2725 209 2.2 126
Show 04206-4418 DON 65 161 1.1 130
Show 04258-4518 RST5205 198 2.1 131
Show 04214-4422 HJ 3645 303 7.4 132
Show 04160-4819 RST2340 260 2.0 133
Show 04171-4358 TDS2808 AB 194 0.7 134
Show 04146-4823 BRT 661 76 3.1 135
Show 04036-4730 I 723 231 1.3 136
Show 04084-4813 BVD 43 238 29.9 139
Show 04037-4745 HU 1362 55 2.6 144
Show 04038-4429 HDS 514 Aa,Ab 106 0.4 148
Show 04038-4429 LCL 120 AB 1 80.2 148
Show 04038-4429 SHY 458 AC 303 594.7 148
Show 03599-4553 BRT 657 92 4.6 149
Show 04186-4835 HDS 547 319 0.1 155
Show 04043-4412 TDS2737 222 1.4 156
Show 04012-4451 HJ 3616 138 27.6 157
Show 04092-4340 TDS2762 AB 251 2.2 157
Show 03595-4652 UC 1095 124 8.2 159
Show 04073-4831 TDS2752 261 0.9 160
Show 04244-4809 HU 1367 58 0.8 161
Show 04121-4859 HJ 3630 99 19.7 172
Show 04224-4337 HJ 3648 29 11.1 175
Show 04268-4807 BRT 665 190 9.2 176
Show 04273-4421 ELP 8 AB 175 0.3 176
Show 04303-4506 I 1487 156 3.1 181

 
 
WDS 04142-4608 : COMPONENTS
 
 
  A
B pa=323.2°
sep=0.06"
 
 
04142-4608 A
 
 
Componente originario normalizzato AB Name HD 27019 Coord arcsec 2000 041409.55-460756.0 Mag 8.48
Spectral class F9 (yellow-white) PmRA 165.00 PmDE -104.0 SAO 216711
HIP 19758 HD 27019 GC 5126 CD CD-46 1347
CP CP-46 409
SAO
SAO 216711 DelFlag RA1950 PmRA1950 0.0152
DE1950 PmDE1950 -0.098 Vmag 6.8 SpType G0
Double code Source 70 CatNum 5126 DM CD-46 1347
DMcomp BDsup HD 27019 M HD 0
GC 5126 RA1950rad 1.10227793 DE1950rad -0.80731873 PmRA2000 0.0157
PmDE2000 -0.102
Hipparcos
Catalog H HIP 19758 Proxy H RAhms 04 14 09.55
DEdms -46 07 56.0 Vmag 6.77 VarFlag R Vmag H
RAdeg 63.5398 DEdeg -46.1322 AstroRef * Plx 22.27
CCDM 04142-4608 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP BA
Theta 117 Rho 0.265 HD 27019 BD
CD CD-46 1347 CP CP-46 409 Dm number -46 1347 VIred 0.64
SpType F8/G0V R SpType Coord arcsec 2000 041409.55-460756.0
Hipparcos 2
HIP 19758 Sn 55 So 3 Nc 2
RArad 1.108978484 DErad -0.8051590149 Plx 22.16 PmRA 160.53
PmDE -92.85 E RArad 0.4 E DErad 0.42 E Plx 0.48
E pmRA 0.44 E pmDE 0.47 Hpmag 6.8966 E Hpmag 0.001
SHp 0.009 VA 0 BV 0.577 E BV 0.002
VI 0.64
CCDM
Ccdm 04142-4608 RComp Comp A Note1
Note2 Discov num DRAs -2.33 DDEs 3.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.4 Sp G0 PmNote *
PmRA 159 PmDE -101 Dm number -46 1347 Cat1 CD
Name2 216711 Cat2 SAO HD 27019 M HD
ADS BDS M ADS BDS N IDS IDS 04111S4623A
HIC 19758
 
 
04142-4608 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 041409.55-460756.0 Mag 7.19 Spectral class G7 (yellow)
Tycho2 8068-01630-1 Calc delta mag 1.29 Calc coord yes
Tycho2
Tycho2 8068-01630-1 Pflag RAmdeg 63.54034815 DEmdeg -46.13246277
PmRA 161.0 PmDE -102.9 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.15 EpDEm 1991.24
Num 12 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.3
Q pmDE 0.9 BTmag 7.465 E BTmag 0.015 VTmag 6.857
E VTmag 0.010 Prox 999 TYC T HIP 19758
CCDM AB RAdeg 63.53980528 DEdeg -46.13222500 EpRA 1990 1.59
EpDE 1990 1.68 E RAdeg 4.2 E DEdeg 4.1 Posflg P
Corr 0.1
CCDM
Ccdm 04142-4608 RComp Comp B Note1 *
Note2 Discov num RST2338 DRAs DDEs
R dRAs Year 1934 Theta Rho
Obs 99 Vmag 7.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 04111S4623B
HIC 19758