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Current system
16133+1332
STF 2021 AB
49 Ser


Nearby doubles
29' : 16151+1343
LDS4654

40' : 16158+1348
BPM 656

64' : 16094+1305
HEI 385

64' : 16121+1433
STF2017

66' : 16177+1342
YSC 154

70' : 16153+1435
BPM 655

85' : 16149+1453
ZHN 30

87' : 16074+1320
GWP2598AB

89' : 16186+1247
HEI 241

91' : 16168+1447
HDS2301

93' : 16150+1203
BPM 654

96' : 16079+1425
A 1798

97' : 16170+1212
GWP2614

99' : 16121+1155
STF2016

100' : 16115+1507
A 1799

102' : 16064+1319
ITF 134

106' : 16061+1319
ITF 137

107' : 16060+1319
STF2007AB

111' : 16057+1332
BPM 650

112' : 16057+1319
ITF 136

114' : 16109+1144
ZUC 13

116' : 16095+1513
BPM 652

119' : 16131+1133
KPP 361

119' : 16068+1444
CVR 179

122' : 16216+1339
BPM 659

126' : 16104+1530
BPM 653



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.

16133+1332 STF 2021 AB (49 Ser)

 
 
16h 13m 18.45s +13° 31' 37.2" sep 4.0 mag 7.43,7.48 Sp G9V dist. 23.58 pc (76.92 l.y.)
 
 
Coord 2000 16133+1332 Discov num STF2021 Comp AB Coord arcsec 2000 16 13 18.45 +13 31 37.2
Date first 1825 Date last 2021 Obs 430
Pa first 318 Pa last 0.4 P.A. Now (θ) 0.4°
Sep first 3.5 Sep last 4.04 Sep. Now (ρ) 4.04"
Mag pri 7.43 Mag sec 7.48 delta mag (ΔM) 0.05 Spectral class G9V (yellow)
Pri motion ra +183 Sec motion ra +183
Pri motion dec -419 Sec motion dec -419
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
16133+1332 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 102018 16 13 18 +13 31 37 CHR 52 Aa,Ab 1983 1 125 0.2 7.53
Show 49 Ser 16 13 18 +13 31 37 STF 2021 AB 2021 430 0 4.0 7.43 7.48 0.05 Y <===
Show 16 13 18 +13 31 37 STF 2021 AC 2001 13 118 206.2 7.43 11.28 3.85
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 49 Ser Constellation Hercules HIP 79492 Tycho2 0958-01468-1
Gaia DR2 4464207428577214464 HD 145958 GC 21821 ADS 9969
GL Gl 615.1A BD BD+13 3091 Flamsteed 49 Serpentis Flamsteed name 49 Ser
Distance 23.58 Distance ly 76.92
Bayer or Flamsteed indentifiers not always match the correct constellation because of procession and proper motion of the star. (Ser vs Her)
 
 
ORBITAL ELEMENTS
 
 
Period (P)949.6773y± 430.3609 Periastron (T)1713.7408y± 68.8958 Semi-major axis (a)3.97885a± 1.05309
Eccentricity (e)0.29964± 0.29398 Inclination (i)52.38°± 10.38 Longitude of periastron (ω)79.167°± 47.111
Node (Ω)150.395°± 27.753 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 354.0 4.105
2001 354.2 4.102
2002 354.4 4.100
2003 354.7 4.098
2004 354.9 4.095
2005 355.1 4.093
2006 355.3 4.090
2007 355.5 4.088
2008 355.7 4.085
2009 355.9 4.082
2010 356.1 4.080
2011 356.3 4.077
2012 356.5 4.074
2013 356.8 4.071
2014 357.0 4.068
2015 357.2 4.065
2016 357.4 4.062
2017 357.6 4.059
2018 357.8 4.056
2019 358.0 4.053
2020 358.2 4.050
2021 358.4 4.046
2022 358.7 4.043
2023 358.9 4.039
2024 359.1 4.036
2025 359.3 4.033
2026 359.5 4.029
2027 359.7 4.025
2028 360.0 4.022
2029 0.2 4.018
2030 0.4 4.014


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


 
  


wds16133%2B1332b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 16133+1332 STF 2021 AB (49 Ser) : NOTES
 
 
discov_num notes refcode
STF2021 49 Ser
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
Hopmann (1964) orbit rejected from Fourth Orbit Catalog Hop1964b
("period over 4000 years") Wor1983
AB: NLTT 42273/42272 Chm2004
AC: Optical pair, based on study of relative motion of the
components using the method of apparent motion parameters. Kiy2008
AB: H 1 82. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Chm2004 E - Chaname, J. & Gould, A. 2004ApJ...601..289C
Chm2004 ApJ 601, 289, 2004
Chm2004 (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004 versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004 identical to discovery observations - predominantly close pairs - were assumed
Chm2004 not new observations, so not included in WDS. Similar concerns when primary and
Chm2004 secondary magnitudes or proper motions were the same.)
Hop1964b orb - Hopmann, J. 1964AnWie..26....1H
Hop1964b Ann. Sternw. Wien 26, #1, 1964
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Wor1983 - Worley, C.E. & Heintz, W.D. 1983PUSNO..24g...1W
Wor1983 Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
3 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
16133+1332 STF2021 AB 2007 397 358 4.1 7.43 7.48 ODV 161318.45+133137.2
16133+1332 STF2021 AB 2008 401 357 4.0 7.43 7.48 ODV 161318.45+133137.2
16133+1332 STF2021 AB 2009 402 356 4.1 7.43 7.48 ODV 161318.45+133137.2
16133+1332 STF2021 AB 2010 404 356 4.0 7.43 7.48 NOD 161318.45+133137.2
16133+1332 STF2021 AB 2012 407 357 4.1 7.43 7.48 G9V NOD 161318.45+133137.2
16133+1332 STF2021 AB 2014 409 358 4.0 7.43 7.48 G9V NOD 161318.45+133137.2
16133+1332 STF2021 AB 2015 415 358 4.1 7.43 7.48 G9V NO 161318.45+133137.2
16133+1332 STF2021 AB 2017 421 358 4.0 7.43 7.48 G9V NO 161318.45+133137.2
16133+1332 STF2021 AB 2018 423 358 4.1 7.43 7.48 G9V NO 161318.45+133137.2
16133+1332 STF2021 AB 2019 426 358 4.0 7.43 7.48 G9V NO 161318.45+133137.2
16133+1332 STF2021 AB 2021 429 0 4.0 7.43 7.48 G9V NO 161318.45+133137.2

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

 
 
WDS 16133+1332 STF 2021 AB (49 Ser) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 22/06/10 daedalus1 mean difficulty separated 358   Seeing: Pickering 6, good. Measures: theta 358, rho 4.0 +/- 0.25. Beautiful, bright pair. C component easily recognized.

 
 
WDS 16133+1332 STF 2021 AB (49 Ser) : MEASURES
 
 
No records found.

 
 
WDS 16133+1332 (49 Ser) : VIRTUAL EYEPIECE
 
 

16133+1332 STF2021A mag 7.43 Sp G9V 16133+1332 CHR 52Ab sep 0.2 P.A. 125.30 16133+1332 STF2021B sep 4.0 P.A. 0.40 mag 7.48 16133+1332 STF2021C sep 201.7 P.A. 118.60 mag 11.28 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 16133+1332 (49 Ser) : ALADIN DSS IMAGE @ 16h 13m 18.45s +13° 31' 37.2"
 
 
 
 
WDS 16133+1332 STF 2021 AB (49 Ser) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16133+1332 STF2021AB distance=0' 16151+1343 LDS4654 distance=29' 16158+1348 BPM 656 distance=40' 16094+1305 HEI 385 distance=64' 16121+1433 STF2017 distance=64' 16177+1342 YSC 154 distance=66' 16153+1435 BPM 655 distance=70' 16149+1453 ZHN 30 distance=85' 16074+1320 GWP2598AB distance=87' 16186+1247 HEI 241 distance=89' 16168+1447 HDS2301 distance=91' 16150+1203 BPM 654 distance=93' 16079+1425 A 1798 distance=96' 16170+1212 GWP2614 distance=97' 16121+1155 STF2016 distance=99' 16115+1507 A 1799 distance=100' 16064+1319 ITF 134 distance=102' 16061+1319 ITF 137 distance=106' 16060+1319 STF2007AB distance=107' 16060+1319 STF2007AC distance=107' 16057+1332 BPM 650 distance=111' 16057+1319 ITF 136 distance=112' 16109+1144 ZUC 13 distance=114' 16095+1513 BPM 652 distance=116' 16131+1133 KPP 361 distance=119' 16068+1444 CVR 179 distance=119' 16216+1339 BPM 659 distance=122' 16104+1530 BPM 653 distance=126' 16160+1126 BUP 166BC distance=133' 16160+1126 ENG 56AB distance=133' 16160+1126 BUP 166AC distance=133' 16160+1120 HEI 541 distance=138' 16075+1141 SLW1164 distance=140' 16038+1406 HDS2265 distance=143' 16223+1238 KPP1229 distance=143' 16231+1350 STF2040 distance=144' 16039+1233 GWP2586 distance=149' 16148+1600 A 2083 distance=151' 16221+1214 FAR 18 distance=151' 16030+1359 STF2000AB distance=153' 16027+1257 HEI 240 distance=159' 16211+1131 BPM 658 distance=166' 16062+1116 HEI 540 distance=171' 16014+1307 BPM 648 distance=177' 16254+1353 SLW1179 distance=177' 16254+1402 BU 625AB (Cujam) distance=179' 16254+1402 BU 625AC (Cujam) distance=179' 16254+1402 BU 625AD (Cujam) distance=179' 16018+1437 HEI 68 distance=180' 16020+1218 GWP2579 distance=182' 16009+1316 STT 303AB distance=182' 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 16133+1332 CHR 52 Aa,Ab 125 0.2
Show 16133+1332 STF2021 AB 4.0
Show 16133+1332 STF2021 AC 118 206.2
Show 16151+1343 LDS4654 141 69.1 29
Show 16158+1348 BPM 656 264 36.2 40
Show 16094+1305 HEI 385 8 1.9 64
Show 16121+1433 STF2017 258 29.9 64
Show 16177+1342 YSC 154 45 0.7 66
Show 16153+1435 BPM 655 4 82.7 70
Show 16149+1453 ZHN 30 56 437.8 85
Show 16074+1320 GWP2598 AB 350 27.8 87
Show 16186+1247 HEI 241 60 0.8 89
Show 16168+1447 HDS2301 55 1.0 91
Show 16150+1203 BPM 654 227 67.8 93
Show 16079+1425 A 1798 344 0.2 96
Show 16170+1212 GWP2614 60 55.3 97
Show 16121+1155 STF2016 147 7.5 99
Show 16115+1507 A 1799 116 0.8 100
Show 16064+1319 ITF 134 139 5.3 102
Show 16061+1319 ITF 137 284 8.4 106
Show 16060+1319 STF2007 AB 322 37.7 107
Show 16060+1319 STF2007 AC 137 162.7 107
Show 16057+1332 BPM 650 348 27.2 111
Show 16057+1319 ITF 136 222 1.7 112
Show 16109+1144 ZUC 13 294 3.1 114
Show 16095+1513 BPM 652 136 96.8 116
Show 16131+1133 KPP 361 81 3.9 119
Show 16068+1444 CVR 179 316 66.2 119
Show 16216+1339 BPM 659 161 117.3 122
Show 16104+1530 BPM 653 130 42.9 126
Show 16160+1126 BUP 166 BC 17 106.6 133
Show 16160+1126 ENG 56 AB 252 61.6 133
Show 16160+1126 BUP 166 AC 342 86.8 133
Show 16160+1120 HEI 541 352 0.4 138
Show 16075+1141 SLW1164 106 107.9 140
Show 16038+1406 HDS2265 170 0.1 143
Show 16223+1238 KPP1229 110 9.5 143
Show 16231+1350 STF2040 313 7.0 144
Show 16039+1233 GWP2586 214 30.6 149
Show 16148+1600 A 2083 156 1.2 151
Show 16221+1214 FAR 18 311 62.5 151
Show 16030+1359 STF2000 AB 226 2.6 153
Show 16027+1257 HEI 240 117 1.3 159
Show 16211+1131 BPM 658 180 44.9 166
Show 16062+1116 HEI 540 61 3.6 171
Show 16014+1307 BPM 648 47 116.5 177
Show 16254+1353 SLW1179 55 12.3 177
Show Cujam 16254+1402 BU 625 AB 304 0.9 179
Show Cujam 16254+1402 BU 625 AC 87 25.4 179
Show Cujam 16254+1402 BU 625 AD 272 130.0 179
Show 16018+1437 HEI 68 64 4.2 180

 
 
WDS 16133+1332 : COMPONENTS
 
 
  A Ab B
Ab pa=125.3°
sep=0.21"
 
B pa=0.4°
sep=4.04"
pa=358.0°
sep=4.16"
 
C pa=118.6°
sep=201.72"
pa=118.6°
sep=201.51"
pa=119.6°
sep=203.65"
 
 
16133+1332 A
 
 
Name 49 Ser Coord arcsec 2000 161318.45+133137.2 Mag 7.43 Spectral class G9V (yellow)
PmRA 183.00 PmDE -419.0
 
 
16133+1332 Ab
 
 
Coord arcsec 2000 161318.46+133137.1 SAO 102018 HIP 79492 Tycho2 0958-01468-1
HD 145958 GC 21821 BD BD+13 3091 Flamsteed 49 Serpentis
Flamsteed name 49 Ser Calc delta mag 7.53 Calc coord yes
Tycho2
Tycho2 0958-01468-1 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 8.304 E BTmag 0.017 VTmag 7.427
E VTmag 0.011 Prox 41 TYC T HIP 79492
CCDM A RAdeg 243.32639056 DEdeg 13.52802722 EpRA 1990 1.50
EpDE 1990 1.05 E RAdeg 4.9 E DEdeg 5.8 Posflg D
Corr -0.1
SAO
SAO 102018 DelFlag RA1950 PmRA1950 0.0122
DE1950 PmDE1950 -0.412 Vmag 6.8 SpType K0
Double code Source 70 CatNum 21821 DM BD+13 3091
DMcomp BDsup HD 145958 M HD 0
GC 21821 RA1950rad 4.23666902 DE1950rad 0.23840772 PmRA2000 0.0124
PmDE2000 -0.409
Hipparcos
Catalog H HIP 79492 Proxy H RAhms 16 13 18.34
DEdms +13 31 40.5 Vmag 6.68 VarFlag R Vmag G
RAdeg 243.326 DEdeg 13.5279 AstroRef A Plx 41.05
CCDM 16134+1331 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 352 Rho 4.139 HD 145958 BD BD+13 3091
CD CP Dm number +13 3091 VIred 0.8
SpType G8V R SpType Coord arcsec 2000 161318.34+133140.5
Hipparcos 2
HIP 79492 Sn 15 So 3 Nc 2
RArad 4.2468473215 DErad 0.236106883 Plx 42.4 PmRA 182.93
PmDE -420.02 E RArad 0.83 E DErad 0.76 E Plx 1.12
E pmRA 0.94 E pmDE 0.93 Hpmag 6.7991 E Hpmag 0.0006
SHp 0.008 VA 0 BV 0.764 E BV 0.001
VI 0.8
 
 
16133+1332 B
 
 
Coord arcsec 2000 161318.45+133141.2 Mag 7.48 PmRA 183.00 PmDE -419.0
Calc delta mag 0.05 Calc coord yes
 
 
16133+1332 C
 
 
Coord arcsec 2000 161330.60+133000.7 Mag 11.28 PmRA -6.00 PmDE 5.0
Calc delta mag 3.75 Calc coord yes