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Doubles in session


Current system
03280+2028
STF 394 AB
HD 21437


Nearby doubles
20' : 03287+2010
TDS 116

31' : 03261+2015
A 2344AB

42' : 03305+2006
STF 399AB

44' : 03295+2107
HU 435

48' : 03247+2033
J 931

61' : 03312+1947
STF 403AB

70' : 03313+2119
GRV 178

73' : 03233+2058
STF 381

76' : 03228+2045
HDS 423AB

77' : 03275+1911
A 2345AB

93' : 03314+2148
STF 404AB

100' : 03345+1948
STF 414

101' : 03209+2031
HDS 418

104' : 03271+1845
CHR 10AB

104' : 03212+2109
COU 259

106' : 03349+1949
STF 416AB

107' : 03298+1844
WZ 7

107' : 03265+2213
LDS6083

110' : 03218+2134
GRV 173

112' : 03348+2126
BRT3261AB

112' : 03270+2219
LDS6084

114' : 03216+1920
GWP 455

117' : 03203+1944
STF 376

119' : 03216+2145
HU 434

125' : 03208+2139
AG 66

130' : 03368+2106
LDS3511



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.

03280+2028 STF 394 AB (HD 21437)

 
 
03h 28m 01.40s +20° 27' 51.4" P.A. 163.00 sep 6.9 mag 7.05,8.16 Sp A3+G5 dist. 76.1 pc (248.24 l.y.)
 
 
Coord 2000 03280+2028 Discov num STF 394 Comp AB Coord arcsec 2000 03 28 01.40 +20 27 51.4
Date first 1782 Date last 2016 Obs 87
Pa first 163 Pa last 163.3 P.A. Now (θ) 163.3°
Sep first 8.5 Sep last 6.909 Sep. Now (ρ) 6.909"
Mag pri 7.05 Mag sec 8.16 delta mag (ΔM) 1.11 Spectral class A3+G5 (white/yellow)
Pri motion ra +003 Sec motion ra +003
Pri motion dec -005 Sec motion dec -005
Notes N (See Notes)
Nature of this double is uncertain.
 
 
03280+2028 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 03 28 01 +20 27 51 COU 260 Aa,Ab 2023 45 83 0.7 7.72 8.08 0.36
Show HD 21437 03 28 01 +20 27 51 STF 394 AB 2016 87 163 6.9 7.05 8.16 1.11 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 21437 Constellation Aries SAO 75940 HIP 16143
Tycho2 1242-00076-1 Gaia DR2 57975397004372224 HD 21437 GC 4117
BD BD+19 537 Distance 76.1 Distance ly 248.24
 
 
WDS 03280+2028 STF 394 AB (HD 21437) : NOTES
 
 
discov_num notes refcode
STF 394 AB: H 3 77. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
discov author
COU Couteau, P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
03280+2028 STF 394 AB 2004 79 165 6.8 7.05 8.16 A3 G5 +19 537 D 032801.40+202751.4
03280+2028 STF 394 AB 2008 81 164 6.9 7.05 8.16 A3 G5 +19 537 D 032801.40+202751.4
03280+2028 STF 394 AB 2011 83 163 6.8 7.05 8.16 A3 G5 +19 537 N D 032801.40+202751.4
03280+2028 STF 394 AB 2016 86 164 6.9 7.05 8.16 A3+G5 +19 537 N 032801.40+202751.4

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

 
 
WDS 03280+2028 STF 394 AB (HD 21437) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03280+2028 STF 394 AB (HD 21437) : MEASURES
 
 
No records found.

 
 
WDS 03280+2028 (HD 21437) : VIRTUAL EYEPIECE
 
 

03280+2028 STF 394A mag 7.05 Sp A3 03280+2028 COU 260Ab sep 0.7 P.A. 83.00 mag 8.08 03280+2028 STF 394B sep 6.9 P.A. 163.30 mag 8.16 Sp G5 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 03280+2028 (HD 21437) : ALADIN DSS IMAGE @ 03h 28m 01.40s +20° 27' 51.4"
 
 
 
 
WDS 03280+2028 STF 394 AB (HD 21437) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03280+2028 STF 394AB distance=0' 03287+2010 TDS 116 distance=20' 03261+2015 A 2344AB distance=31' 03261+2015 CTT 6AC distance=31' 03305+2006 STF 399AB distance=42' 03305+2006 STF 399AC distance=42' 03305+2006 RAO 11Ba,Bb distance=42' 03295+2107 HU 435 distance=44' 03247+2033 J 931 distance=48' 03312+1947 STF 403AB distance=61' 03313+2119 GRV 178 distance=70' 03233+2058 STF 381 distance=73' 03228+2045 HDS 423AB distance=76' 03228+2045 HDS 423AC distance=76' 03228+2045 HDS 423AD distance=76' 03228+2045 HDS 423AE distance=76' 03228+2045 HDS 423AF distance=76' 03275+1911 A 2345AB distance=77' 03314+2148 STF 404AB distance=93' 03314+2148 STF 404AC distance=93' 03314+2148 STF 405CD distance=95' 03345+1948 STF 414 distance=100' 03209+2031 HDS 418 distance=101' 03271+1845 CHR 10AB distance=104' 03271+1845 RBR 35AC distance=104' 03212+2109 COU 259 distance=104' 03349+1949 STF 416AB distance=106' 03349+1949 ES 2600AC distance=106' 03298+1844 WZ 7 distance=107' 03265+2213 LDS6083 distance=107' 03218+2134 GRV 173 distance=110' 03348+2126 BRT3261AB distance=112' 03348+2126 J 932AB,C distance=112' 03348+2126 J 932AB,D distance=112' 03270+2219 LDS6084 distance=112' 03216+1920 GWP 455 distance=114' 03203+1944 STF 376 distance=117' 03216+2145 HU 434 distance=119' 03208+2139 AG 66 distance=125' 03368+2106 LDS3511 distance=130' 03199+2131 OCC 254 distance=130' 03206+1911 STF 377AB distance=131' 03206+1911 STF 377AC distance=131' 03243+2231 LDS6082 distance=131' 03355+1912 BRT2311 distance=131' 03199+2143 HU 433 distance=137' 03320+1820 LDS3501 distance=140' 03284+2248 BAG 2Aa,Ab distance=141' 03284+2248 BU 878AB distance=141' 03284+2248 BU 878AC distance=141' 03378+1957 KPP3535 distance=142' 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 03280+2028 COU 260 Aa,Ab 83 0.7 0
Show 03280+2028 STF 394 AB 163 6.9 0
Show 03287+2010 TDS 116 183 1.1 20
Show 03261+2015 A 2344 AB 189 1.3 31
Show 03261+2015 CTT 6 AC 128 50.9 31
Show 03305+2006 STF 399 AB 146 19.6 42
Show 03305+2006 STF 399 AC 222 57.6 42
Show 03305+2006 RAO 11 Ba,Bb 249 0.3 42
Show 03295+2107 HU 435 344 0.6 44
Show 03247+2033 J 931 79 4.8 48
Show 03312+1947 STF 403 AB 172 2.3 61
Show 03313+2119 GRV 178 294 13.0 70
Show 03233+2058 STF 381 104 1.0 73
Show 03228+2045 HDS 423 AB 299 0.2 76
Show 03228+2045 HDS 423 AC 97 2.0 76
Show 03228+2045 HDS 423 AD 86 2.2 76
Show 03228+2045 HDS 423 AE 86 4.3 76
Show 03228+2045 HDS 423 AF 47 4.8 76
Show 03275+1911 A 2345 AB 176 1.0 77
Show 03314+2148 STF 404 AB 203 28.7 93
Show 03314+2148 STF 404 AC 50 121.5 93
Show 03314+2148 STF 405 CD 48 26.9 95
Show 03345+1948 STF 414 186 7.5 100
Show 03209+2031 HDS 418 342 0.6 101
Show 03271+1845 CHR 10 AB 29 0.0 104
Show 03271+1845 RBR 35 AC 81 0.9 104
Show 03212+2109 COU 259 217 0.9 104
Show 03349+1949 STF 416 AB 68 30.6 106
Show 03349+1949 ES 2600 AC 294 24.1 106
Show 03298+1844 WZ 7 283 7.4 107
Show 03265+2213 LDS6083 266 6.6 107
Show 03218+2134 GRV 173 335 57.0 110
Show 03348+2126 BRT3261 AB 292 1.0 112
Show 03348+2126 J 932 AB,C 308 3.7 112
Show 03348+2126 J 932 AB,D 305 4.7 112
Show 03270+2219 LDS6084 308 24.0 112
Show 03216+1920 GWP 455 208 13.9 114
Show 03203+1944 STF 376 251 7.2 117
Show 03216+2145 HU 434 215 0.3 119
Show 03208+2139 AG 66 285 4.0 125
Show 03368+2106 LDS3511 170 13.9 130
Show 03199+2131 OCC 254 -1 0.1 130
Show 03206+1911 STF 377 AB 102 1.2 131
Show 03206+1911 STF 377 AC 223 24.3 131
Show 03243+2231 LDS6082 210 2.0 131
Show 03355+1912 BRT2311 341 2.3 131
Show 03199+2143 HU 433 259 0.2 137
Show 03320+1820 LDS3501 270 4.0 140
Show 03284+2248 BAG 2 Aa,Ab 144 0.1 141
Show 03284+2248 BU 878 AB 61 0.7 141
Show 03284+2248 BU 878 AC 229 144.4 141

 
 
WDS 03280+2028 : COMPONENTS
 
 
  A Ab
Ab pa=83.0°
sep=0.66"
 
B pa=163.3°
sep=6.91"
pa=168.8°
sep=6.83"
 
 
03280+2028 A
 
 
Name HD 21437 Coord arcsec 2000 032801.40+202751.4 Mag 7.05 Spectral class A3 (white)
PmRA 3.00 PmDE -5.0 SAO 75940 HIP 16143
Tycho2 1242-00076-1 HD 21437 GC 4117 BD BD+19 537
Tycho2
Tycho2 1242-00076-1 Pflag RAmdeg 52.00583546 DEmdeg 20.46427562
PmRA 5.8 PmDE -1.3 E RAmdeg 5 E DEmdeg 6
E pmRA 0.9 E pmDE 0.8 EpRAm 1991.20 EpDEm 1990.72
Num 14 Q RAmdeg 1.4 Q DEmdeg 1.7 Q pmRA 1.4
Q pmDE 1.8 BTmag 7.664 E BTmag 0.017 VTmag 7.052
E VTmag 0.012 Prox 68 TYC T HIP 16143
CCDM AB RAdeg 52.00582111 DEdeg 20.46427861 EpRA 1990 1.72
EpDE 1990 1.51 E RAdeg 5.2 E DEdeg 6.3 Posflg P
Corr -0.4
SAO
SAO 75940 DelFlag RA1950 PmRA1950 0.0006
DE1950 PmDE1950 -0.001 Vmag 7 SpType A3
Double code Source 70 CatNum 4117 DM BD+19 537
DMcomp A BDsup HD 21437 M HD 0
GC 4117 RA1950rad 0.89507613 DE1950rad 0.35415399 PmRA2000 0.0006
PmDE2000 -0.003
Hipparcos
Catalog H HIP 16143 Proxy H RAhms 03 28 01.40
DEdms +20 27 51.4 Vmag 6.72 VarFlag R Vmag G
RAdeg 52.0058 DEdeg 20.4643 AstroRef * Plx 4.96
CCDM 2.61 N CCDM I Nsys 1 Ncomp 3
MultFlag C Source Qual A M HIP
Theta Rho HD BD BD+19 537
CD CP Dm number +19 537 VIred 1.07
SpType A3+... R SpType Coord arcsec 2000 032801.40+202751.4
Hipparcos 2
HIP 16143 Sn 55 So 3 Nc 3
RArad 0.9076725436 DErad 0.3571690566 Plx -13.14 PmRA -21.54
PmDE -61.58 E RArad 10.01 E DErad 4.11 E Plx 9.59
E pmRA 12.83 E pmDE 12.27 Hpmag E Hpmag 0.0024
SHp 0.015 VA 0 BV 0.471 E BV 0.02
VI 0.46
CCDM
Ccdm 03280+2028 RComp Comp A Note1
Note2 Discov num DRAs 1.39 DDEs -11.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.1 Sp A3 PmNote *
PmRA -1 PmDE -36 Dm number +19 537 Cat1 BD
Name2 +20 318 Cat2 AGK2/3 HD 21437 M HD
ADS BDS A 2546 M ADS BDS N IDS IDS 03222N2007A
HIC 16143
 
 
03280+2028 Ab
 
 
Coord arcsec 2000 032801.45+202751.5 Mag 8.08 Delta magnitude 0.36 Coordinate calculated yes
 
 
03280+2028 B
 
 
Coord arcsec 2000 032801.54+202744.8 Mag 8.16 Spectral class G5 (yellow) PmRA 3.00
PmDE -5.0 SAO 75941 GC 4118 DM BD+19 537
Delta magnitude 0.44 Coordinate calculated yes
SAO
SAO 75941 DelFlag RA1950 PmRA1950 0.0005
DE1950 PmDE1950 0.042 Vmag 8 SpType
Double code Source 70 CatNum 4118 DM BD+19 537
DMcomp B BDsup HD M HD
GC 4118 RA1950rad 0.89508745 DE1950rad 0.35412891 PmRA2000 0.0005
PmDE2000 0.04
CCDM
Ccdm 03280+2028 RComp Comp B Note1
Note2 Discov num COU 260 DRAs DDEs
R dRAs Year 1968 Theta 16 Rho 0.2
Obs 1 Vmag 8.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 03223N2007B
HIC 16143