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Doubles in session


Current system
05354-0450
DA 4 AB
42 Ori


Nearby doubles
3' : 05354-0448
SKF2273

4' : 05353-0454
SKF2267

5' : 05357-0451
HLD 173AB

5' : 05351-0449
SKF2256

5' : 05352-0454
MGM2423

6' : 05352-0455
CON 10AB

6' : 05351-0446
SKF2258

6' : 05357-0447
SKF2281

9' : 05356-0458
SKF2359

9' : 05355-0459
MGM2472

10' : 05353-0441
STF 746AB

11' : 05360-0454
SKF2437

11' : 05353-0501
MGM2446

11' : 05361-0453
SKF2438

11' : 05351-0500
SKF2426

12' : 05354-0502
CHX 10

12' : 05354-0501
MGM2427

12' : 05356-0501
SKF2278

12' : 05359-0441
SKF2284

13' : 05355-0438
SKF2358

13' : 05352-0502
SKF2263

13' : 05349-0501
SKF2251

13' : 05356-0503
SKF2484

13' : 05358-0501
CHN 16

13' : 05347-0458
SKF2245

14' : 05355-0503
SKF2483



Selections
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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.

05354-0450 DA 4 AB (42 Ori)

 
 
05h 35m 23.16s -04° 50' 18.1" P.A. 202.00 sep 1.2 mag 4.61,7.50 Sp B1V dist. 271 pc (884 l.y.)
 
 
Coord 2000 05354-0450 Discov num DA    4 Comp AB Coord arcsec 2000 05 35 23.16 -04 50 18.1
Date first 1848 Date last 2021 Obs 36
Pa first 220 Pa last 201.7 P.A. Now (θ) 201.7°
Sep first 2.0 Sep last 1.188 Sep. Now (ρ) 1.188"
Mag pri 4.61 Mag sec 7.50 delta mag (ΔM) 2.89 Spectral class B1V (blue-white)
Pri motion ra -007 Sec motion ra -007
Pri motion dec +000 Sec motion dec +000
Notes N (See Notes)
Nature of this double is uncertain.
 
 
05354-0450 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 132320 05 35 23 -04 50 18 TOK 430 Aa,Ab 2021 13 32 0.2 4.90 6.30 1.40
Show 42 Ori 132320 05 35 23 -04 50 18 DA 4 AB 2021 36 202 1.2 4.61 7.50 2.89 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 42 Ori Var name NSV2318 Ori Constellation Orion SAO 132320
HIP 26237 Tycho2 4774-00928-1 Gaia DR2 3209572852067563392 HD 37018
HR 1892 GC 6934 ADS 4187 BD BD-04 1185
Flamsteed 42 Orionis Flamsteed name 42 Ori Distance 271 Distance ly 884
 
 
WDS 05354-0450 DA 4 AB (42 Ori) : NOTES
 
 
discov_num notes refcode
DA 4 AB + TOK 430Aa,Ab: This is HIP 26237, HD 37018, HR 1892, 42 Ori, a
young star in Orion which has not been observed at high angular
resolution so far, according to INT4 (Hartkopf et al. 2001). We Hrt2001d
resolved the known binary DA 4AB and discovered the spectacular
subsystem Aa,Ab at 0".16. Tok2015c
 
 
REFERENCES
 
 
refcode metd author reference
Hrt2001d - Hartkopf, W.I., McAlister, H.A., & Mason, B.D. 2001AJ....122.3480H
Hrt2001d AJ 122, 3480, 2001
Hrt2001d (description of Interferometric Catalog for USNO CD-ROM; no data)
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 DA Dawes, W.R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
05354-0450 DA 4 AB 2015 28 204 1.2 4.61 7.50 B1V N D 053523.16-045018.1
05354-0450 DA 4 AB 2016 32 203 1.2 4.61 7.50 B1V N 053523.16-045018.1
05354-0450 DA 4 AB 2018 35 202 1.2 4.61 7.50 B1V N 053523.16-045018.1
05354-0450 DA 4 AB 2020 35 202 1.2 4.61 7.50 B1V N 053523.16-045018.1
05354-0450 DA 4 AB 2021 36 202 1.2 4.61 7.50 B1V N 053523.16-045018.1

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

 
 
WDS 05354-0450 DA 4 AB (42 Ori) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 05354-0450 DA 4 AB (42 Ori) : MEASURES
 
 
No records found.

 
 
WDS 05354-0450 (42 Ori) : VIRTUAL EYEPIECE
 
 

05354-0450 DA 4A mag 4.61 Sp B1V 05354-0450 TOK 430Ab sep 0.2 P.A. 31.40 mag 6.3 05354-0450 DA 4B sep 1.2 P.A. 201.60 mag 7.5 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 05354-0450 (42 Ori) : ALADIN DSS IMAGE @ 05h 35m 23.16s -04° 50' 18.1"
 
 
 
 
WDS 05354-0450 DA 4 AB (42 Ori) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

05354-0450 DA 4AB distance=0' 05354-0448 SKF2273 distance=3' 05353-0454 SKF2267 distance=4' 05357-0451 HLD 173AB distance=5' 05357-0451 HLD 173AC distance=5' 05351-0449 SKF2256 distance=5' 05352-0454 MGM2423 distance=5' 05352-0455 CON 10AB distance=6' 05352-0455 CON 10CD distance=6' 05352-0455 CON 10GH distance=6' 05352-0455 CON 10EF distance=6' 05351-0446 SKF2258 distance=6' 05357-0447 SKF2281 distance=6' 05356-0458 SKF2359 distance=9' 05355-0459 MGM2472 distance=9' 05353-0441 STF 746AB distance=10' 05353-0441 BKO 20AC distance=10' 05360-0454 SKF2437 distance=11' 05353-0501 MGM2446 distance=11' 05361-0453 SKF2438 distance=11' 05351-0500 SKF2426 distance=11' 05354-0502 CHX 10 distance=12' 05354-0501 MGM2427 distance=12' 05356-0501 SKF2278 distance=12' 05359-0441 SKF2284 distance=12' 05355-0438 SKF2358 distance=13' 05352-0502 SKF2263 distance=13' 05349-0501 SKF2251 distance=13' 05356-0503 SKF2484 distance=13' 05358-0501 CHN 16 distance=13' 05347-0458 SKF2245 distance=13' 05355-0503 SKF2483 distance=14' 05355-0504 SKF2481 distance=15' 05356-0504 SKF2280 distance=15' 05356-0505 SKF2279 distance=15' 05356-0506 SKF2434 distance=15' 05354-0506 MGM2372 distance=16' 05355-0505 MGM2367 distance=16' 05355-0506 SKF2482 distance=16' 05344-0457 SKF2242 distance=16' 05362-0501 SKF2293 distance=16' 05351-0435 SKF2260 distance=16' 05359-0504 REP 5 distance=16' 05354-0434 SKF2270 distance=17' 05359-0505 SKF2360 distance=17' 05353-0508 MGM2341 distance=18' 05360-0505 SKF2287 distance=18' 05342-0451 BDG 1 distance=18' 05354-0507 RBB 5AB distance=18' 05354-0507 RBB 5BC distance=18' 05355-0507 MGM2332AB distance=18' 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 05354-0450 DA 4 AB 202 1.2
Show 05354-0450 TOK 430 Aa,Ab 32 0.2
Show 05354-0448 SKF2273 217 3.5 3
Show 05353-0454 SKF2267 296 0.9 4
Show 05357-0451 HLD 173 AB 171 20.6 5
Show 05357-0451 HLD 173 AC 36 19.2 5
Show 05351-0449 SKF2256 132 3.1 5
Show 05352-0454 MGM2423 252 1.0 5
Show 05352-0455 CON 10 AB 80 0.1 6
Show 05352-0455 CON 10 CD 237 2.3 6
Show 05352-0455 CON 10 GH 185 3.6 6
Show 05352-0455 CON 10 EF 156 2.8 6
Show 05351-0446 SKF2258 273 3.2 6
Show 05357-0447 SKF2281 328 4.8 6
Show 05356-0458 SKF2359 33 2.7 9
Show 05355-0459 MGM2472 152 1.3 9
Show 05353-0441 STF 746 AB 219 13.9 10
Show 05353-0441 BKO 20 AC 226 25.5 10
Show 05360-0454 SKF2437 230 1.5 11
Show 05353-0501 MGM2446 225 1.3 11
Show 05361-0453 SKF2438 143 0.9 11
Show 05351-0500 SKF2426 235 5.4 11
Show 05354-0502 CHX 10 173 10.8 12
Show 05354-0501 MGM2427 276 0.9 12
Show 05356-0501 SKF2278 57 1.1 12
Show 05359-0441 SKF2284 118 3.6 12
Show 05355-0438 SKF2358 78 1.2 13
Show 05352-0502 SKF2263 155 3.0 13
Show 05349-0501 SKF2251 122 1.2 13
Show 05356-0503 SKF2484 286 1.1 13
Show 05358-0501 CHN 16 140 13.8 13
Show 05347-0458 SKF2245 148 1.4 13
Show 05355-0503 SKF2483 99 1.3 14
Show 05355-0504 SKF2481 356 1.1 15
Show 05356-0504 SKF2280 44 0.7 15
Show 05356-0505 SKF2279 227 1.9 15
Show 05356-0506 SKF2434 218 0.7 15
Show 05354-0506 MGM2372 270 0.9 16
Show 05355-0505 MGM2367 325 1.6 16
Show 05355-0506 SKF2482 315 1.7 16
Show 05344-0457 SKF2242 95 4.7 16
Show 05362-0501 SKF2293 54 0.8 16
Show 05351-0435 SKF2260 159 1.5 16
Show 05359-0504 REP 5 239 2.0 16
Show 05354-0434 SKF2270 47 3.9 17
Show 05359-0505 SKF2360 153 2.8 17
Show 05353-0508 MGM2341 343 0.5 18
Show 05360-0505 SKF2287 130 2.1 18
Show 05342-0451 BDG 1 252 33.8 18
Show 05354-0507 RBB 5 AB 257 3.2 18
Show 05354-0507 RBB 5 BC 281 1.6 18

 
 
WDS 05354-0450 : COMPONENTS
 
 
  A Ab
Ab pa=31.4°
sep=0.16"
 
B pa=201.6°
sep=1.19"
pa=202.8°
sep=1.35"
 
 
05354-0450 A
 
 
Name 42 Ori Coord arcsec 2000 053523.16-045018.1 Mag 4.61 Spectral class B1V (blue-white)
PmRA -7.00 PmDE 0.0 SAO 132320 HIP 26237
Tycho2 4774-00928-1 HD 37018 HR 1892 GC 6934
BD BD-04 1185 Flamsteed 42 Orionis Flamsteed name 42 Ori
Tycho2
Tycho2 4774-00928-1 Pflag P RAmdeg 83.84648287 DEmdeg -4.83835095
PmRA -6.7 PmDE 0.4 E RAmdeg 3 E DEmdeg 3
E pmRA 2.8 E pmDE 2.8 EpRAm 1991.75 EpDEm 1991.47
Num 4 Q RAmdeg 1.3 Q DEmdeg 0.7 Q pmRA 1.2
Q pmDE 0.6 BTmag 4.385 E BTmag 0.014 VTmag 4.607
E VTmag 0.009 Prox 14 TYC T HIP 26237
CCDM RAdeg 83.84650444 DEdeg -4.83834083 EpRA 1990 1.77
EpDE 1990 1.49 E RAdeg 3.3 E DEdeg 3.4 Posflg D
Corr -0.1
SAO
SAO 132320 DelFlag RA1950 PmRA1950 -0.0001
DE1950 PmDE1950 0 Vmag 4.6 SpType B3
Double code Source 70 CatNum 6934 DM BD-04 1185
DMcomp BDsup HD 37018 M HD 0
GC 6934 RA1950rad 1.45262697 DE1950rad -0.08499135 PmRA2000 0.0003
PmDE2000 0
Hipparcos
Catalog H HIP 26237 Proxy RAhms 05 35 23.16
DEdms -04 50 18.0 Vmag 4.58 VarFlag R Vmag G
RAdeg 83.8465 DEdeg -4.83834 AstroRef Plx 4.15
CCDM 05354-0450 N CCDM I Nsys 1 Ncomp 1
MultFlag X Source Qual S M HIP
Theta Rho HD 37018 BD BD-04 1185
CD CP Dm number -04 1185 VIred -0.19
SpType B2III... R SpType Coord arcsec 2000 053523.16-045018.0
Hipparcos 2
HIP 26237 Sn 1 So 2 Nc 1
RArad 1.4633976092 DErad -0.0844449725 Plx 3.69 PmRA 4.52
PmDE -7.11 E RArad 0.94 E DErad 0.64 E Plx 1.2
E pmRA 1.08 E pmDE 0.66 Hpmag 4.5178 E Hpmag 0.0006
SHp 0.006 VA 0 BV -0.183 E BV 0.003
VI -0.19
CCDM
Ccdm 05354-0450 RComp Comp A Note1
Note2 Discov num DRAs -0.85 DDEs -17.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 4.7 Sp B3 PmNote *
PmRA -3 PmDE 0 Dm number -04 1185 Cat1 BD
Name2 132320 Cat2 SAO HD 37018 M HD
ADS BDS A 4187 M ADS BDS N IDS IDS 05304S0454A
HIC 26237
 
 
05354-0450 Ab
 
 
Coord arcsec 2000 053523.17-045018.0 Mag 6.3 Calc delta mag 1.4 Calc coord yes
 
 
05354-0450 B
 
 
Coord arcsec 2000 053523.13-045019.2 Mag 7.5 PmRA -7.00 PmDE 0.0
Tycho2 4774-00928-2 Calc delta mag 2.6 Calc coord yes
Tycho2
Tycho2 4774-00928-2 Pflag P RAmdeg 83.84648287 DEmdeg -4.83835095
PmRA -6.7 PmDE 0.4 E RAmdeg 3 E DEmdeg 3
E pmRA 2.8 E pmDE 2.8 EpRAm 1991.75 EpDEm 1991.47
Num 4 Q RAmdeg 1.3 Q DEmdeg 0.7 Q pmRA 1.2
Q pmDE 0.6 BTmag 7.394 E BTmag 0.015 VTmag 7.501
E VTmag 0.012 Prox 14 TYC HIP
CCDM RAdeg 83.84631528 DEdeg -4.83869111 EpRA 1990 1.74
EpDE 1990 1.56 E RAdeg 4.8 E DEdeg 5.3 Posflg D
Corr -0.2
CCDM
Ccdm 05354-0450 RComp Comp B Note1
Note2 Discov num DA 4 DRAs DDEs
R dRAs Year 1876 Theta 213 Rho 1.6
Obs 10 Vmag 7.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 4187 M ADS BDS N IDS IDS 05304S0454B
HIC 26237