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Doubles in session


Current system
07138-2254
HJ 3938
HD 55856


Nearby doubles
19' : 07152-2256
TDS4626

28' : 07126-2315
ARA2037

34' : 07162-2255
ARA1681

38' : 07114-2313
TDS 338

40' : 07140-2334
TDS4607

44' : 07169-2247
ARA1682

46' : 07140-2209
TDS4606

46' : 07166-2319
HJ 3945AB

47' : 07140-2341
B 131

48' : 07107-2315
JAW 4

48' : 07156-2335
ARA2041

51' : 07103-2241
DON 167

51' : 07140-2345
TDS 341

53' : 07118-2210
ARA1680

54' : 07175-2239
ARA1683

54' : 07165-2216
SKF2790

54' : 07172-2321
TDS4677

56' : 07119-2343
TDS4575

56' : 07100-2238
TDS4534

56' : 07102-2319
TDS4539

57' : 07168-2333
TDS4664

59' : 07096-2246
TDS 335

60' : 07124-2158
BRT1399

61' : 07181-2309
TDS4687

62' : 07132-2154
ARA1322

62' : 07149-2355
TDS4619



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.

07138-2254 HJ 3938 (HD 55856)

 
 
07h 13m 48.39s -22° 54' 20.8" P.A. 251.00 sep 19.3 mag 6.32,9.10 Sp B2IV+G5IV dist. 436.68 pc (1424.45 l.y.)
 
 
Coord 2000 07138-2254 Discov num HJ 3938 Comp Coord arcsec 2000 07 13 48.39 -22 54 20.8
Date first 1837 Date last 2010 Obs 21
Pa first 253 Pa last 251 P.A. Now (θ) 251°
Sep first 18.0 Sep last 19.31 Sep. Now (ρ) 19.31"
Mag pri 6.32 Mag sec 9.10 delta mag (ΔM) 2.78 Spectral class B2IV+G5IV (blue-white/yellow)
Pri motion ra -003 Sec motion ra -006
Pri motion dec +003 Sec motion dec +004
Notes N (See Notes)
rPM=0.439
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 55856 Constellation Canis Major SAO 173247 HIP 34940
Tycho2 6524-02464-1 Gaia DR2 2927919754482160000 HD 55856 HR 2733
GC 9588 ADS 5912 DM BD-22 1760 BD BD-22 1761
CD CD-22 4204 CP CP-22 1894 Distance 436.68 Distance ly 1424.45
 
 
WDS 07138-2254 HJ 3938 (HD 55856) : NOTES
 
 
discov_num notes refcode
HJ 3938 B is BD-22@1760.
 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
07138-2254 HJ 3938 1999 19 251 19.4 6.32 9.10 B2IV+G5IV N D 071348.39-225420.8
07138-2254 HJ 3938 2010 21 251 19.3 6.32 9.10 B2IV+G5IV N 071348.39-225420.8

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

 
 
WDS 07138-2254 HJ 3938 (HD 55856) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 07138-2254 HJ 3938 (HD 55856) : MEASURES
 
 
No records found.

 
 
WDS 07138-2254 (HD 55856) : VIRTUAL EYEPIECE
 
 

07138-2254 HJ 3938A mag 6.32 Sp B2IV 07138-2254 HJ 3938B sep 17.9 P.A. 249.50 mag 9.1 Sp G5IV 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 07138-2254 (HD 55856) : ALADIN DSS IMAGE @ 07h 13m 48.39s -22° 54' 20.8"
 
 
 
 
WDS 07138-2254 HJ 3938 (HD 55856) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

07138-2254 HJ 3938 distance=0' 07152-2256 TDS4626 distance=19' 07126-2315 ARA2037 distance=28' 07162-2255 ARA1681 distance=34' 07114-2313 TDS 338 distance=38' 07140-2334 TDS4607 distance=40' 07169-2247 ARA1682 distance=44' 07140-2209 TDS4606 distance=46' 07166-2319 HJ 3945AB distance=46' 07166-2319 SHY 508BC distance=47' 07140-2341 B 131 distance=47' 07107-2315 JAW 4 distance=48' 07156-2335 ARA2041 distance=48' 07103-2241 DON 167 distance=51' 07140-2345 TDS 341 distance=51' 07118-2210 ARA1680 distance=53' 07175-2239 ARA1683 distance=54' 07165-2216 SKF2790 distance=54' 07172-2321 TDS4677 distance=54' 07119-2343 TDS4575 distance=56' 07100-2238 TDS4534 distance=56' 07102-2319 TDS4539 distance=56' 07168-2333 TDS4664 distance=57' 07096-2246 TDS 335 distance=59' 07124-2158 BRT1399 distance=60' 07181-2309 TDS4687 distance=61' 07132-2154 ARA1322 distance=62' 07149-2355 TDS4619 distance=62' 07164-2203 TDS 348 distance=63' 07092-2242 ARA1679 distance=64' 07094-2230 HDS 995 distance=67' 07127-2400 ARA2038 distance=68' 07186-2308 TDS4699 distance=68' 07090-2322 ARA2036 distance=72' 07172-2351 I 773 distance=74' 07113-2148 RST4840BC distance=75' 07113-2148 HJ 3934A,BC distance=75' 07084-2307 ARA1678 distance=75' 07138-2409 ARA2039 distance=76' 07154-2407 BRT1400 distance=76' 07094-2340 TDS4526 distance=77' 07183-2209 ARA1326 distance=78' 07194-2245 ARA1684 distance=79' 07115-2142 RST4841 distance=80' 07107-2404 TDS 337 distance=82' 07184-2201 ARA1327 distance=83' 07110-2141 ARA1317 distance=84' 07099-2401 TDS4533 distance=86' 07087-2344 B 130 distance=86' 07080-2324 TDS4506 distance=86' 07083-2217 ARA1677 distance=87' 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 07138-2254 HJ 3938 251 19.3
Show 07152-2256 TDS4626 13 1.8 19
Show 07126-2315 ARA2037 135 13.9 28
Show 07162-2255 ARA1681 171 8.8 34
Show 07114-2313 TDS 338 269 1.9 38
Show 07140-2334 TDS4607 48 0.4 40
Show 07169-2247 ARA1682 257 11.7 44
Show 07140-2209 TDS4606 161 0.4 46
Show 07166-2319 HJ 3945 AB 50 26.5 46
Show 07166-2319 SHY 508 BC 166 999.9 47
Show 07140-2341 B 131 35 2.9 47
Show 07107-2315 JAW 4 77 18.7 48
Show 07156-2335 ARA2041 59 13.6 48
Show 07103-2241 DON 167 344 1.9 51
Show 07140-2345 TDS 341 157 1.7 51
Show 07118-2210 ARA1680 138 12.9 53
Show 07175-2239 ARA1683 147 15.5 54
Show 07165-2216 SKF2790 258 67.9 54
Show 07172-2321 TDS4677 120 0.4 54
Show 07119-2343 TDS4575 231 0.5 56
Show 07100-2238 TDS4534 193 3.0 56
Show 07102-2319 TDS4539 260 2.0 56
Show 07168-2333 TDS4664 257 0.4 57
Show 07096-2246 TDS 335 347 1.1 59
Show 07124-2158 BRT1399 302 4.9 60
Show 07181-2309 TDS4687 215 1.9 61
Show 07132-2154 ARA1322 4 11.0 62
Show 07149-2355 TDS4619 232 0.5 62
Show 07164-2203 TDS 348 326 0.9 63
Show 07092-2242 ARA1679 323 8.8 64
Show 07094-2230 HDS 995 254 0.2 67
Show 07127-2400 ARA2038 233 12.9 68
Show 07186-2308 TDS4699 233 1.9 68
Show 07090-2322 ARA2036 20 12.2 72
Show 07172-2351 I 773 190 3.4 74
Show 07113-2148 RST4840 BC 270 0.6 75
Show 07113-2148 HJ 3934 A,BC 238 13.6 75
Show 07084-2307 ARA1678 354 12.1 75
Show 07138-2409 ARA2039 359 9.5 76
Show 07154-2407 BRT1400 251 4.9 76
Show 07094-2340 TDS4526 167 0.6 77
Show 07183-2209 ARA1326 30 13.6 78
Show 07194-2245 ARA1684 319 4.9 79
Show 07115-2142 RST4841 278 0.7 80
Show 07107-2404 TDS 337 19 1.1 82
Show 07184-2201 ARA1327 55 14.1 83
Show 07110-2141 ARA1317 173 13.8 84
Show 07099-2401 TDS4533 88 0.4 86
Show 07087-2344 B 130 127 3.3 86
Show 07080-2324 TDS4506 35 0.8 86
Show 07083-2217 ARA1677 60 6.6 87

 
 
WDS 07138-2254 : COMPONENTS
 
 
  A
B pa=249.5°
sep=17.95"
 
 
07138-2254 A
 
 
Componente originario normalizzato AB Name HD 55856 Coord arcsec 2000 071348.39-225420.8 Mag 6.32
Spectral class B2IV (blue-white) PmRA -3.00 PmDE 3.0 SAO 173247
HIP 34940 Tycho2 6524-02464-1 HD 55856 HR 2733
GC 9588 ADS 5912 BD BD-22 1761 CD CD-22 4204
CP CP-22 1894
Tycho2
Tycho2 6524-02464-1 Pflag X RAmdeg DEmdeg
PmRA PmDE E RAmdeg E DEmdeg
E pmRA E pmDE EpRAm EpDEm
Num Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 6.106 E BTmag 0.014 VTmag 6.317
E VTmag 0.010 Prox 193 TYC T HIP 34940
CCDM RAdeg 108.45161417 DEdeg -22.90578333 EpRA 1990 1.58
EpDE 1990 1.72 E RAdeg 3.5 E DEdeg 3.4 Posflg
Corr -0.2
SAO
SAO 173247 DelFlag RA1950 PmRA1950 -0.0012
DE1950 PmDE1950 -0.02 Vmag 6.2 SpType B3
Double code Source 70 CatNum 9588 DM BD-22 1761
DMcomp BDsup HD 55856 M HD 0
GC 9588 RA1950rad 1.88360347 DE1950rad -0.39827138 PmRA2000 -0.0009
PmDE2000 -0.017
Hipparcos
Catalog H HIP 34940 Proxy RAhms 07 13 48.39
DEdms -22 54 20.8 Vmag 6.34 VarFlag 1 R Vmag H
RAdeg 108.452 DEdeg -22.9058 AstroRef Plx 2.07
CCDM 07138-2254 N CCDM I Nsys 1 Ncomp 1
MultFlag X Source Qual S M HIP
Theta Rho HD 55856 BD BD-22 1761
CD CD-22 4204 CP CP-22 1894 Dm number -22 1761 VIred -0.19
SpType B2IV R SpType Coord arcsec 2000 071348.39-225420.8
Hipparcos 2
HIP 34940 Sn 1 So 2 Nc 1
RArad 1.8928377582 DErad -0.3997813848 Plx 2.29 PmRA -3.25
PmDE 2.63 E RArad 0.43 E DErad 0.51 E Plx 0.84
E pmRA 0.55 E pmDE 0.68 Hpmag 6.272 E Hpmag 0.0016
SHp 0.015 VA 2 BV -0.184 E BV 0.003
VI -0.19
CCDM
Ccdm 07138-2254 RComp Comp A Note1
Note2 Discov num DRAs 0.36 DDEs -23.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.5 Sp B3 PmNote *
PmRA -12 PmDE -21 Dm number -22 1761 Cat1 BD
Name2 173247 Cat2 SAO HD 55856 M HD
ADS BDS A 5912 M ADS BDS N IDS IDS 07096S2244A
HIC 34940
 
 
07138-2254 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 071347.17-225427.1 Mag 9.1 Spectral class G5IV (yellow)
PmRA -6.00 PmDE 4.0 ADS 5912 DM BD-22 1760
Calc delta mag 2.78 Calc coord yes
CCDM
Ccdm 07138-2254 RComp Comp B Note1
Note2 Discov num HJ 3938 DRAs -1.13 DDEs -27.9
R dRAs 10 Year 1879 Theta 250 Rho 19.7
Obs 8 Vmag 8.3 Sp A5 PmNote *
PmRA -30 PmDE -4 Dm number -22 1760 Cat1 BD
Name2 173246 Cat2 SAO HD M HD
ADS BDS A 5912 M ADS BDS N IDS IDS 07096S2244B
HIC