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Doubles in session


Current system
15282+0251
A 2175
HD 137844


Nearby doubles
5' : 15281+0255
TDS9524AB

21' : 15273+0306
HDS2172

31' : 15292+0317
LDS5838

37' : 15279+0215
SLW1096

38' : 15306+0303
CVR 788

41' : 15257+0307
J 442

44' : 15262+0221
SLW1091

46' : 15301+0216
SLW1100

59' : 15243+0248
HDS2165

60' : 15259+0340
UC 3002

74' : 15296+0141
KPP1203

77' : 15302+0140
BAL1904

86' : 15287+0416
UC 3009

87' : 15330+0308
GRV1114

96' : 15345+0307
HDS2187

97' : 15250+0128
UC 2999

105' : 15347+0212
RAO 337

106' : 15323+0417
UC 3025

110' : 15298+0439
HDS2180

119' : 15356+0209
BAL1905

130' : 15317+0053
TOK 48

144' : 15374+0214
SLW1116

145' : 15216+0437
CVR 785

145' : 15333+0454
SKF2213

149' : 15193+0146
STF1930AB

151' : 15276+0522
STF1943



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.

15282+0251 A 2175 (HD 137844)

 
 
15h 28m 12.94s +02° 51' 21.6" P.A. 223.00 sep 0.2 mag 8.78,9.09 Sp A5 dist. 250.63 pc (817.56 l.y.)
 
 
Coord 2000 15282+0251 Discov num A  2175 Comp Coord arcsec 2000 15 28 12.94 +02 51 21.6
Date first 1910 Date last 2021 Obs 51
Pa first 349 Pa last 222.8 P.A. Now (θ) 222.8°
Sep first 0.2 Sep last 0.198 Sep. Now (ρ) 0.198"
Mag pri 8.78 Mag sec 9.09 delta mag (ΔM) 0.31 Spectral class A5 (white)
Pri motion ra -016 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 137844 Constellation Serpens SAO 121015 HIP 75724
Tycho2 0341-00121-1 Gaia DR2 4421301323766535168 HD 137844 ADS 9654
BD BD+03 3034 Distance 250.63 Distance ly 817.56
 
 
ORBITAL ELEMENTS
 
 
Period (P)218.14y Periastron (T)1495.5y Semi-major axis (a)0.263a
Eccentricity (e)0.5 Inclination (i)65.5° Longitude of periastron (ω)254.4°
Node (Ω)177.6° Notesn ReferenceUSN2006b
Equinox2000 Last observation1998 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 201.2 0.266
2001 201.8 0.264
2002 202.4 0.263
2003 203.0 0.262
2004 203.6 0.260
2005 204.2 0.259
2006 204.8 0.258
2007 205.4 0.256
2008 206.0 0.255
2009 206.7 0.253
2010 207.3 0.251
2011 208.0 0.250
2012 208.6 0.248
2013 209.3 0.246
2014 210.0 0.244
2015 210.7 0.242
2016 211.4 0.241
2017 212.1 0.239
2018 212.8 0.237
2019 213.6 0.235
2020 214.3 0.233
2021 215.1 0.231
2022 215.8 0.229
2023 216.6 0.227
2024 217.4 0.225
2025 218.3 0.223
2026 219.1 0.221
2027 219.9 0.218
2028 220.8 0.216
2029 221.7 0.214
2030 222.6 0.212


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


 
  


wds15282%2B0251a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 15282+0251 A 2175 (HD 137844) : NOTES
 
 
discov_num notes refcode
A 2175 Couteau assumption of a double occultation in 1936, giving a period Cou1957b
of 34yr, is probably no longer tenable. Fin1970b
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 6.02 +/- 6.17, 3.77, and 1.82 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Cou1957b orb - Couteau, P. 1957JO.....40..126C
Cou1957b J. Obs. 40, 126, 1957
Fin1970b - Finsen, W.S. & Worley, C.E. 1970ROCi..130..203F
Fin1970b Republic Obs. Circ. 130, 203, 1970 (Third Orbit Catalog)
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
USN2006b orb - Brendley, M. & Mason, B.D. 2006IAUDS.160R...1B
USN2006b Inf. Circ. 160, 1, 2006
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15282+0251 A 2175 2006 45 206 0.2 8.78 9.09 A5 NOD 152812.94+025121.6
15282+0251 A 2175 2009 47 210 0.2 8.78 9.09 A5 NOD 152812.94+025121.6
15282+0251 A 2175 2015 48 216 0.2 8.78 9.09 A5 NO 152812.94+025121.6
15282+0251 A 2175 2019 49 220 0.2 8.78 9.09 A5 NO 152812.94+025121.6
15282+0251 A 2175 2021 51 223 0.2 8.78 9.09 A5 NO 152812.94+025121.6

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

 
 
WDS 15282+0251 A 2175 (HD 137844) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15282+0251 A 2175 (HD 137844) : MEASURES
 
 
No records found.

 
 
WDS 15282+0251 (HD 137844) : VIRTUAL EYEPIECE
 
 

15282+0251 A 2175A mag 8.78 Sp A5 15282+0251 A 2175B sep 0.2 P.A. 222.80 mag 9.09 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 15282+0251 (HD 137844) : ALADIN DSS IMAGE @ 15h 28m 12.94s +02° 51' 21.6"
 
 
 
 
WDS 15282+0251 A 2175 (HD 137844) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15282+0251 A 2175 distance=1' 15281+0255 TDS9524AB distance=5' 15281+0255 TDS9524AC distance=5' 15273+0306 HDS2172 distance=21' 15292+0317 LDS5838 distance=31' 15279+0215 SLW1096 distance=37' 15306+0303 CVR 788 distance=38' 15257+0307 J 442 distance=41' 15262+0221 SLW1091 distance=44' 15301+0216 SLW1100 distance=46' 15243+0248 HDS2165 distance=59' 15259+0340 UC 3002 distance=60' 15296+0141 KPP1203 distance=74' 15302+0140 BAL1904 distance=77' 15287+0416 UC 3009 distance=86' 15330+0308 GRV1114 distance=87' 15345+0307 HDS2187 distance=96' 15250+0128 UC 2999 distance=97' 15347+0212 RAO 337 distance=105' 15323+0417 UC 3025 distance=106' 15298+0439 HDS2180 distance=110' 15356+0209 BAL1905 distance=119' 15317+0053 TOK 48 distance=130' 15374+0214 SLW1116 distance=144' 15216+0437 CVR 785 distance=145' 15333+0454 SKF2213 distance=145' 15193+0146 STF1930AB distance=149' 15193+0146 STF1930AC distance=149' 15193+0146 STF1930AD distance=149' 15276+0522 STF1943 distance=151' 15180+0250 BAL2407 distance=153' 15315+0521 J 3294 distance=158' 15351+0045 HDS2189 distance=164' 15182+0143 HEI 536 distance=166' 15210+0043 BU 32AB distance=168' 15210+0043 GWP2515AC distance=168' 15296+0541 SLW1099 distance=172' 15387+0406 KPP 802 distance=174' 15329+0531 STF1953 distance=175' 15398+0230 CVR 168 distance=176' 15399+0227 SLE 926 distance=178' 15365+0504 GWP2536 distance=182' 15299+0552 GAU 14 distance=184' 15212+0523 HDS2159 distance=185' 15370-0041 HJ 1276 distance=186' 15184+0056 BU 943 distance=188' 15353-0018 CBL 492 distance=188' 15197-0032 GWP2513 distance=189' 15176+0110 GWP2509 distance=190' 15256+0558 HJ 2780 distance=191' 15277+0606 STF1944 distance=195' 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 15282+0251 A 2175 223 0.2 1
Show 15281+0255 TDS9524 AB 309 0.5 5
Show 15281+0255 TDS9524 AC 342 1.9 5
Show 15273+0306 HDS2172 52 0.5 21
Show 15292+0317 LDS5838 220 14.3 31
Show 15279+0215 SLW1096 222 83.6 37
Show 15306+0303 CVR 788 191 27.8 38
Show 15257+0307 J 442 87 4.5 41
Show 15262+0221 SLW1091 357 14.7 44
Show 15301+0216 SLW1100 231 165.0 46
Show 15243+0248 HDS2165 1 0.6 59
Show 15259+0340 UC 3002 36 24.9 60
Show 15296+0141 KPP1203 50 9.3 74
Show 15302+0140 BAL1904 158 2.9 77
Show 15287+0416 UC 3009 67 16.2 86
Show 15330+0308 GRV1114 240 28.5 87
Show 15345+0307 HDS2187 240 0.6 96
Show 15250+0128 UC 2999 204 15.0 97
Show 15347+0212 RAO 337 34 0.9 105
Show 15323+0417 UC 3025 47 31.0 106
Show 15298+0439 HDS2180 229 1.3 110
Show 15356+0209 BAL1905 26 5.1 119
Show 15317+0053 TOK 48 17 0.0 130
Show 15374+0214 SLW1116 83 44.7 144
Show 15216+0437 CVR 785 333 17.2 145
Show 15333+0454 SKF2213 130 3.4 145
Show 15193+0146 STF1930 AB 36 11.7 149
Show 15193+0146 STF1930 AC 17 152.2 149
Show 15193+0146 STF1930 AD 275 713.6 149
Show 15276+0522 STF1943 148 5.1 151
Show 15180+0250 BAL2407 233 6.0 153
Show 15315+0521 J 3294 239 2.3 158
Show 15351+0045 HDS2189 11 0.2 164
Show 15182+0143 HEI 536 175 3.1 166
Show 15210+0043 BU 32 AB 23 3.4 168
Show 15210+0043 GWP2515 AC 139 75.8 168
Show 15296+0541 SLW1099 162 16.8 172
Show 15387+0406 KPP 802 8 6.9 174
Show 15329+0531 STF1953 252 6.7 175
Show 15398+0230 CVR 168 132 101.6 176
Show 15399+0227 SLE 926 314 22.1 178
Show 15365+0504 GWP2536 233 27.5 182
Show 15299+0552 GAU 14 264 9.1 184
Show 15212+0523 HDS2159 280 0.5 185
Show 15370-0041 HJ 1276 258 5.4 186
Show 15184+0056 BU 943 92 3.0 188
Show 15353-0018 CBL 492 220 30.1 188
Show 15197-0032 GWP2513 39 10.8 189
Show 15176+0110 GWP2509 281 7.4 190
Show 15256+0558 HJ 2780 156 30.9 191
Show 15277+0606 STF1944 293 0.7 195

 
 
WDS 15282+0251 : COMPONENTS
 
 
  A
B pa=222.8°
sep=0.20"
 
 
15282+0251 A
 
 
Componente originario normalizzato AB Name HD 137844 Coord arcsec 2000 152812.94+025121.6 Mag 8.78
Spectral class A5 (white) PmRA -16.00 PmDE -16.0 SAO 121015
HIP 75724 Tycho2 0341-00121-1 HD 137844 ADS 9654
BD BD+03 3034
Tycho2
Tycho2 0341-00121-1 Pflag RAmdeg 232.05386517 DEmdeg 2.85597960
PmRA -19.2 PmDE -7.0 E RAmdeg 6 E DEmdeg 6
E pmRA 1.3 E pmDE 1.2 EpRAm 1991.20 EpDEm 1991.19
Num 9 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.1 BTmag 8.492 E BTmag 0.016 VTmag 8.137
E VTmag 0.013 Prox 999 TYC T HIP 75724
CCDM AB RAdeg 232.05391000 DEdeg 2.85599556 EpRA 1990 1.65
EpDE 1990 1.65 E RAdeg 5.8 E DEdeg 6.3 Posflg P
Corr 0.0
SAO
SAO 121015 DelFlag RA1950 PmRA1950 -0.001
DE1950 PmDE1950 -0.015 Vmag 8.2 SpType A5
Double code Source 30 CatNum 5212 DM BD+03 3034
DMcomp BDsup HD 137844 M HD 0
GC RA1950rad 4.03912455 DE1950rad 0.05285594 PmRA2000 -0.0008
PmDE2000 -0.012
Hipparcos
Catalog H HIP 75724 Proxy H RAhms 15 28 12.94
DEdms +02 51 21.6 Vmag 8.09 VarFlag R Vmag H
RAdeg 232.054 DEdeg 2.856 AstroRef * Plx 5.13
CCDM 15282+0251 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 197 Rho 0.274 HD 137844 BD BD+03 3034
CD CP Dm number +03 3034 VIred 0.41
SpType A5 R SpType Coord arcsec 2000 152812.94+025121.6
Hipparcos 2
HIP 75724 Sn 55 So 3 Nc 2
RArad 4.0501048264 DErad 0.0498465492 Plx 3.99 PmRA -19.47
PmDE -11.31 E RArad 1.01 E DErad 0.66 E Plx 1.16
E pmRA 1.1 E pmDE 0.98 Hpmag 8.1702 E Hpmag 0.0021
SHp 0.016 VA 0 BV 0.334 E BV 0.015
VI 0.39
CCDM
Ccdm 15282+0251 RComp Comp A Note1
Note2 Discov num DRAs 0.94 DDEs 20.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.9 Sp A5 PmNote *
PmRA -16 PmDE -21 Dm number +03 3034 Cat1 BD
Name2 +03 1863 Cat2 AGK2/3 HD 137844 M HD
ADS BDS A 9654 M ADS BDS N IDS IDS 15232N0312A
HIC 75724
 
 
15282+0251 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 152812.93+025121.5 Mag 9.09 Calc delta mag 0.31
Calc coord yes
CCDM
Ccdm 15282+0251 RComp Comp B Note1 *
Note2 Discov num A 2175 DRAs DDEs
R dRAs Year 1910 Theta Rho
Obs 15 Vmag 8.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 9654 M ADS BDS N IDS IDS 15232N0312B
HIC 75724