03311+2744 STFA 7 AB (HD 21700)

 
 
03h 31m 03.47s +27° 43' 53.6" P.A. 234.00 sep 44.1 mag 7.41,7.81 Sp B9 dist. 120.05 pc (391.6 l.y.)
 
 
Coord 2000 03311+2744 Discov num STFA  7 Comp AB Coord arcsec 2000 03 31 03.47 +27 43 53.6
Date first 1836 Date last 2021 Obs 58
Pa first 233 Pa last 234.2 P.A. Now (θ) 234.2°
Sep first 44.0 Sep last 44.14 Sep. Now (ρ) 44.14"
Mag pri 7.41 Mag sec 7.81 delta mag (ΔM) 0.4 Spectral class B9 (blue-white)
Pri motion ra +029 Sec motion ra +029
Pri motion dec -028 Sec motion dec -028
Notes N Z V (See Notes, Parallax indicates components are physical, Proper motion indicates physical)
This double is physical.
 
 
03311+2744 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 21700 75964 03 31 03 +27 43 54 STFA 7 AB 2021 58 234 44.1 7.41 7.81 0.40 <===
Show 75962 03 31 01 +27 43 27 SMR 60 BC 2021 10 0 12.3 7.81 13.00 5.19
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 21700 Constellation Taurus SAO 75964 HIP 16386
Tycho2 1806-00170-1 Gaia DR2 117931010151859840 HD 21700 GC 4181
BD BD+27 514 Distance 120.05 Distance ly 391.6
 
 
WDS 03311+2744 STFA 7 AB (HD 21700) : NOTES
 
 
discov_num notes refcode
STFA 7 STTA 34. B is BD+27@513.
HJL 49. HJL1986
 
 
REFERENCES
 
 
refcode metd author reference
HJL1986 Pa - Halbwachs, J.L. 1986A&AS...66..131H
HJL1986 A&AS 66, 131, 1986
HJL1986 (Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986 only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
 
 
DISCOVERER
 
 
idgroup discov author
1 SMR Schlimmer, J.
56 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03311+2744 STFA 7 AB 2013 49 233 44.1 7.41 7.81 B9 NZDV 033103.47+274353.6
03311+2744 STFA 7 AB 2014 50 234 44.0 7.41 7.81 B9 NZDV 033103.47+274353.6
03311+2744 STFA 7 AB 2015 51 234 44.0 7.41 7.81 B9 NZ V 033103.47+274353.6
03311+2744 STFA 7 AB 2016 52 234 44.1 7.41 7.81 B9 NZ V 033103.47+274353.6
03311+2744 STFA 7 AB 2017 53 234 44.1 7.41 7.81 B9 NZ V 033103.47+274353.6
03311+2744 STFA 7 AB 2021 58 234 44.1 7.41 7.81 B9 NZ V 033103.47+274353.6

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

 
 
WDS 03311+2744 STFA 7 AB (HD 21700) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03311+2744 STFA 7 AB (HD 21700) : MEASURES
 
 
No records found.

 
 
WDS 03311+2744 (HD 21700) : VIRTUAL EYEPIECE
 
 

03311+2744 STFA  7A mag 7.41 Sp B9 03311+2744 SMR  60B sep 44.2 P.A. 233.60 mag 7.81 Sp B9 03311+2744 SMR  60C sep 38.1 P.A. 248.70 mag 13 virtual eyepiece
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Radius:
Components only
 
 
WDS 03311+2744 (HD 21700) : ALADIN DSS IMAGE @ 03h 31m 03.47s +27° 43' 53.6"
 
 
 
 
WDS 03311+2744 STFA 7 AB (HD 21700) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


03311+2744  STFA  7AB distance=0' 03311+2744  SMR  60BC distance=1' 03313+2734  SHY 445BC distance=11' 03313+2734  STF 401AB distance=11' 03306+2713  UC 1012 distance=32' 03332+2817  HO   14 distance=44' 03350+2755  AZC  35 distance=54' 03321+2651  LDS6087 distance=55' 03353+2751  TDS2592 distance=57' 03326+2844  JNN  24AB distance=64' 03326+2844  JNN  24AC distance=64' 03277+2829  MLB 518 distance=64' 03295+2638  COU 685 distance=69' 03353+2651  COU 688Aa,Ab distance=78' 03353+2651  STF 415AB distance=78' 03353+2651  STF 415AC distance=78' 03280+2631  LDS1146AB distance=83' 03280+2631  WIS  93AC distance=83' 03266+2843  CHR   9Aa,Ab distance=84' 03266+2843  TOK  13AB distance=84' 03266+2843  CIA  10Aa1,2 distance=84' 03247+2746  WIS  91 distance=85' 03286+2904  STF 395 distance=86' 03343+2625  OL  152 distance=90' 03325+2615  COU 686 distance=92' 03355+2630  LDS5428 distance=95' 03372+2646  LDS6089 distance=101' 03346+2613  LDS1147 distance=102' 03350+2919  LSC  28 distance=108' 03392+2757  STF 424 distance=109' 03374+2632  COU 690 distance=111' 03389+2703  TDS2610 distance=113' 03310+2937  A   983 distance=113' 03224+2710  LDS3484 distance=120' 03317+2544  LDS6086 distance=121' 03402+2820  UC 1039AB distance=127' 03402+2820  UC 1039AC distance=127' 03402+2820  UC 1039BC distance=127' 03360+2936  KPP1974 distance=130' 03398+2643  GRV 186 distance=133' 03405+2838  HO  323 distance=136' 03238+2605  COU 464 distance=139' 03390+2917  UC 1037 distance=141' 03406+2846  STF 427AB distance=142' 03207+2819  MLB 638 distance=142' 03262+2950  ALP  10 distance=142' 03413+2832  STF 429 distance=144' 03286+2523  BRT 133 distance=144' 03355+2532  UC 1029 distance=145' 03416+2655  LDS6095 distance=149' 03313+2515  A  1825 distance=149' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 03311+2744 STFA 7 AB 234 44.1
Show 03311+2744 SMR 60 BC 12.3 1
Show 03313+2734 SHY 445 BC 129 999.9 11
Show 03313+2734 STF 401 AB 270 11.5 11
Show 03306+2713 UC 1012 354 48.0 32
Show 03332+2817 HO 14 26 2.2 44
Show 03350+2755 AZC 35 122 12.2 54
Show 03321+2651 LDS6087 267 68.0 55
Show 03353+2751 TDS2592 96 2.1 57
Show 03326+2844 JNN 24 AB 282 0.1 64
Show 03326+2844 JNN 24 AC 104 0.3 64
Show 03277+2829 MLB 518 255 3.4 64
Show 03295+2638 COU 685 248 2.6 69
Show 03353+2651 COU 688 Aa,Ab 201 0.5 78
Show 03353+2651 STF 415 AB 53 15.1 78
Show 03353+2651 STF 415 AC 357 40.0 78
Show 03280+2631 LDS1146 AB 308 6.0 83
Show 03280+2631 WIS 93 AC 105 636.2 83
Show 03266+2843 CHR 9 Aa,Ab 235 0.4 84
Show 03266+2843 TOK 13 AB 129 95.6 84
Show 03266+2843 CIA 10 Aa1,2 245 0.0 84
Show 03247+2746 WIS 91 327 665.6 85
Show 03286+2904 STF 395 90 1.8 86
Show 03343+2625 OL 152 50 2.3 90
Show 03325+2615 COU 686 338 1.5 92
Show 03355+2630 LDS5428 196 36.4 95
Show 03372+2646 LDS6089 170 60.5 101
Show 03346+2613 LDS1147 176 3.6 102
Show 03350+2919 LSC 28 126 0.2 108
Show 03392+2757 STF 424 313 10.0 109
Show 03374+2632 COU 690 172 4.2 111
Show 03389+2703 TDS2610 348 1.5 113
Show 03310+2937 A 983 145 0.5 113
Show 03224+2710 LDS3484 100 275.4 120
Show 03317+2544 LDS6086 359 97.4 121
Show 03402+2820 UC 1039 AB 3 11.7 127
Show 03402+2820 UC 1039 AC 46 48.6 127
Show 03402+2820 UC 1039 BC 58 40.9 127
Show 03360+2936 KPP1974 21 15.6 130
Show 03398+2643 GRV 186 284 31.7 133
Show 03405+2838 HO 323 208 16.5 136
Show 03238+2605 COU 464 289 0.4 139
Show 03390+2917 UC 1037 231 34.4 141
Show 03406+2846 STF 427 AB 207 7.0 142
Show 03207+2819 MLB 638 300 9.3 142
Show 03262+2950 ALP 10 269 24.8 142
Show 03413+2832 STF 429 105 16.8 144
Show 03286+2523 BRT 133 222 5.3 144
Show 03355+2532 UC 1029 298 48.3 145
Show 03416+2655 LDS6095 36 40.5 149
Show 03313+2515 A 1825 306 2.9 149

 
 
WDS 03311+2744 : COMPONENTS
 
 
  A B
B pa=233.6°
sep=44.19"
 
C pa=248.7°
sep=38.15"
pa=0.2°
sep=12.34"
 
 
03311+2744 A
 
 
Name HD 21700 Coord arcsec 2000 033103.47+274353.6 Mag 7.41 Spectral class B9 (blue-white)
PmRA 29.00 PmDE -28.0 SAO 75964 HIP 16386
Tycho2 1806-00170-1 HD 21700 GC 4181 BD BD+27 514
Tycho2
Tycho2 1806-00170-1 Pflag RAmdeg 52.76443843 DEmdeg 27.73155395
PmRA 28.8 PmDE -26.7 E RAmdeg 5 E DEmdeg 5
E pmRA 1.3 E pmDE 1.2 EpRAm 1991.37 EpDEm 1991.12
Num 10 Q RAmdeg 0.6 Q DEmdeg 0.6 Q pmRA 0.6
Q pmDE 0.7 BTmag 7.474 E BTmag 0.016 VTmag 7.409
E VTmag 0.011 Prox 441 TYC T HIP 16386
CCDM RAdeg 52.76436361 DEdeg 27.73161694 EpRA 1990 1.72
EpDE 1990 1.51 E RAdeg 4.5 E DEdeg 5.4 Posflg
Corr -0.2
SAO
SAO 75964 DelFlag RA1950 PmRA1950 0.0019
DE1950 PmDE1950 -0.023 Vmag 7.1 SpType B9
Double code Source 70 CatNum 4181 DM BD+27 514
DMcomp BDsup HD 21700 M HD 0
GC 4181 RA1950rad 0.90770763 DE1950rad 0.48105007 PmRA2000 0.0019
PmDE2000 -0.026
Hipparcos
Catalog H HIP 16386 Proxy RAhms 03 31 03.45
DEdms +27 43 53.8 Vmag 7.44 VarFlag R Vmag G
RAdeg 52.7644 DEdeg 27.7316 AstroRef Plx 10.49
CCDM 03310+2744 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 21700 BD BD+27 514
CD CP Dm number +27 514 VIred 0.06
SpType B9 R SpType Coord arcsec 2000 033103.45+274353.8
Hipparcos 2
HIP 16386 Sn 5 So 0 Nc 1
RArad 0.9209117376 DErad 0.4840079734 Plx 8.33 PmRA 27.19
PmDE -28.02 E RArad 0.64 E DErad 0.38 E Plx 0.72
E pmRA 0.77 E pmDE 0.68 Hpmag 7.4627 E Hpmag 0.0012
SHp 0.007 VA 0 BV 0.04 E BV 0.015
VI 0.06
 
 
03311+2744 B
 
 
Coord arcsec 2000 033100.79+274327.4 Coord calc 033100.79+274327.4 Mag 7.81 Spectral class B9 (blue-white)
PmRA 29.00 PmDE -28.0 SAO 75962 HIP 16378
Tycho2 1806-00726-1 HD 21685 BD BD+27 513 Calc delta mag 0.4
Tycho2
Tycho2 1806-00726-1 Pflag RAmdeg 52.75328293 DEmdeg 27.72429197
PmRA 27.6 PmDE -27.8 E RAmdeg 5 E DEmdeg 6
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.30 EpDEm 1991.08
Num 12 Q RAmdeg 0.6 Q DEmdeg 1.5 Q pmRA 0.7
Q pmDE 1.5 BTmag 7.992 E BTmag 0.017 VTmag 7.812
E VTmag 0.012 Prox 441 TYC T HIP 16378
CCDM RAdeg 52.75321167 DEdeg 27.72435722 EpRA 1990 1.76
EpDE 1990 1.52 E RAdeg 5.0 E DEdeg 6.3 Posflg
Corr 0.0
SAO
SAO 75962 DelFlag RA1950 PmRA1950 0.001
DE1950 PmDE1950 -0.014 Vmag 8.2 SpType A0
Double code Source 34 CatNum 1713 DM BD+27 513
DMcomp BDsup HD 21685 M HD 0
GC RA1950rad 0.90751292 DE1950rad 0.48092325 PmRA2000 0.001
PmDE2000 -0.017
Hipparcos
Catalog H HIP 16378 Proxy RAhms 03 31 00.77
DEdms +27 43 27.7 Vmag 7.87 VarFlag R Vmag G
RAdeg 52.7532 DEdeg 27.7244 AstroRef Plx 10.82
CCDM 03310+2744 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 21685 BD BD+27 513
CD CP Dm number +27 513 VIred 0.17
SpType A0 R SpType Coord arcsec 2000 033100.77+274327.7
Hipparcos 2
HIP 16378 Sn 5 So 0 Nc 1
RArad 0.9207170295 DErad 0.4838813201 Plx 8.05 PmRA 27.17
PmDE -28.68 E RArad 0.83 E DErad 0.48 E Plx 0.94
E pmRA 0.96 E pmDE 0.86 Hpmag 7.9227 E Hpmag 0.0017
SHp 0.011 VA 0 BV 0.15 E BV 0.015
VI 0.17
 
 
03311+2744 C
 
 
Coord arcsec 2000 033100.79+274339.7 Mag 13 Calc delta mag 5.59 Calc coord yes