18562+0412 STF 2417 AB (Alya)

 
 
18h 56m 13.18s +04° 12' 12.9" P.A. 106.00 sep 22.4 mag 4.59,4.93 Sp A5V+A5Vn dist. 47.42 pc (154.68 l.y.)
 
 
Coord 2000 18562+0412 Discov num STF2417 Comp AB Coord arcsec 2000 18 56 13.18 +04 12 12.9
Date first 1755 Date last 2019 Obs 236
Pa first 106 Pa last 105.5 P.A. Now (θ) 105.5°
Sep first 22.1 Sep last 22.435 Sep. Now (ρ) 22.435"
Mag pri 4.59 Mag sec 4.93 delta mag (ΔM) 0.34 Spectral class A5V+A5Vn (white/white)
Pri motion ra +038 Sec motion ra +052
Pri motion dec +027 Sec motion dec +031
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.241 (< 0.3, Physical double)
This double is physical.
 
 
18562+0412 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Alya 124068 18 56 13 +04 12 13 STF 2417 AB 2019 236 106 22.4 4.59 4.93 0.34 <===
Show 124068 18 56 13 +04 12 13 STF 2417 AC 2007 18 58 421.0 4.59 6.78 2.19
Show 124070 18 56 15 +04 12 08 STF 2417 BC 2007 17 56 405.6 4.93 6.78 1.85
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Alya Var name NSV11557 Ser Constellation Serpens SAO 124068
HIP 92946 Tycho2 0457-00687-1 Gaia DR2 4281199284413726208 HD 175638
HR 7141 GC 25991 ADS 11853 BD BD+04 3916
Bayer Theta 1 Serpentis Bayer name The1 Ser Flamsteed 63 Serpentis Flamsteed name 63 Ser
FK5 709 Distance 47.42 Distance ly 154.68 Bayer greek θ1 Ser
Other names Alga
 
 
WDS 18562+0412 STF 2417 AB (Alya) : NOTES
 
 
discov_num notes refcode
STF2417 A: the 1 Ser = 63 Ser A = Alya
B: the 2 Ser = 63 Ser B = BD+04@3917.
AC: C component = A component of 18566+0416 TOK 620.
BC: This system was analysed in detail by Teague, who determined the Tea2001
source of the errors in all three historical measures (Labitzke, Lbz1929
Przbyllok, and Kamper), which actually belong with the AC pair of this Prz1926
system. Kpr1992
BC: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
AB: H 4 6. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
Kpr1992 Po - Kamper, K.W. 1992AJ....104..231K
Kpr1992 AJ 104, 231, 1992
Lbz1929 Po - Labitzke, P. & Przbyllok, E. .
Lbz1929 Koenigsberg Obs. 45, 65, 1929
Lbz1929 = Leeward Community College
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Prz1926 Ma - Przbyllok, E., Labitzke, P., & Meier, P. .
Prz1926 +Po Beob. Sternw. Koenigsberg #44, 1926
Tea2001 Ma - Teague, E.T.H. 2001DSO.....7....4T
Tea2001 Double Star Observer 7, #4, 2001
 
 
DISCOVERER
 
 
idgroup discov author
1 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
18562+0412 STF2417 AB 2007 197 104 22.4 4.59 4.93 A5V A5Vn N D 185613.18+041212.9
18562+0412 STF2417 AB 2008 205 104 22.3 4.59 4.93 A5V A5Vn N DV 185613.18+041212.9
18562+0412 STF2417 AB 2009 210 103 23.0 4.59 4.93 A5V A5Vn NVD 185613.18+041212.9
18562+0412 STF2417 AB 2010 214 104 22.4 4.59 4.93 A5V A5Vn NVD 185613.18+041212.9
18562+0412 STF2417 AB 2011 215 99 24.7 4.59 4.93 A5V A5Vn NVD 185613.18+041212.9
18562+0412 STF2417 AB 2012 217 104 22.3 4.59 4.93 A5V A5Vn NVD 185613.18+041212.9
18562+0412 STF2417 AB 2013 219 104 22.3 4.59 4.93 A5V A5Vn NVD 185613.18+041212.9
18562+0412 STF2417 AB 2014 220 103 22.4 4.59 4.93 A5V A5Vn NVD 185613.18+041212.9
18562+0412 STF2417 AB 2015 221 105 22.5 4.59 4.93 A5V+A5Vn NV 185613.18+041212.9
18562+0412 STF2417 AB 2016 225 104 22.6 4.59 4.93 A5V+A5Vn NV 185613.18+041212.9
18562+0412 STF2417 AB 2017 226 104 22.5 4.59 4.93 A5V+A5Vn NV 185613.18+041212.9
18562+0412 STF2417 AB 2018 227 104 22.5 4.59 4.93 A5V+A5Vn NV 185613.18+041212.9
18562+0412 STF2417 AB 2019 233 106 22.4 4.59 4.93 A5V+A5Vn NV 185613.18+041212.9

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

 
 
WDS 18562+0412 STF 2417 AB (Alya) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18562+0412 STF 2417 AB (Alya) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 15/08/16 g.locatelli easy 22.51 0.06 105.24 0.16 0.30 1 Rc mag A 4.1 B 4.4
 
 
WDS 18562+0412 (Alya) : VIRTUAL EYEPIECE
 
 

18562+0412 STF2417A mag 4.59 Sp A5V 18562+0412 STF2417B sep 22.5 P.A. 103.60 mag 4.93 Sp A5Vn 18562+0412 STF2417C sep 420.1 P.A. 58.00 mag 6.78 virtual eyepiece
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Radius:
Components only
 
 
WDS 18562+0412 (Alya) : ALADIN DSS IMAGE @ 18h 56m 13.18s +04° 12' 12.9"
 
 
 
 
WDS 18562+0412 STF 2417 AB (Alya) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18562+0412  STF2417AB (Alya) distance=0' 18562+0412  STF2417BC distance=1' 18566+0416  TOK 620 distance=8' 18573+0422  J  2159 distance=18' 18578+0409  HJ  873 distance=24' 18583+0347  HDS2690 distance=41' 18578+0339  BAL2501 distance=41' 18532+0413  A   358AB distance=46' 18532+0413  GII 274Aa,Ab distance=46' 18558+0327  A  2192 distance=46' 18572+0500  HEI 898 distance=49' 18559+0323  A  2193 distance=51' 18590+0330  ALL   3A,BC distance=59' 18590+0330  VOU  39BC distance=59' 18525+0420  J  2155 distance=60' 18583+0503  KPP2008 distance=60' 18578+0315  UC  243 distance=62' 18534+0323  STF2413 distance=65' 18574+0302  UC  242 distance=73' 18514+0351  DOO  72 distance=75' 18553+0251  ROE   8 distance=83' 18586+0237  A  2194AB distance=103' 18564+0228  J  2681BC distance=103' 18564+0228  J  2681AB distance=104' 19031+0350  HJL1100 distance=105' 18570+0228  HJ 5504 distance=106' 19030+0440  KPP 431 distance=106' 18580+0554  CSN  11AB distance=106' 18580+0554  CSN  11AC distance=106' 18580+0554  CSN  11AD distance=106' 18580+0554  CSN  11AE distance=106' 18580+0554  CSN  11AF distance=106' 18580+0554  CSN  11AG distance=106' 18580+0554  CSN  11AH distance=106' 18580+0554  CSN  11AI distance=106' 18580+0554  CSN  11AJ distance=106' 18580+0554  CSN  11AK distance=106' 18580+0554  CSN  11AL distance=106' 18580+0554  CSN  11AM distance=106' 19034+0432  TDS 962 distance=109' 18581+0559  OL  215 distance=111' 19002+0237  J   474 distance=113' 19004+0552  LDS6333 distance=118' 18530+0602  LDS1016 distance=123' 18549+0615  J  1267 distance=124' 18584+0614  TOK 621 distance=127' 18588+0207  MIL   6 distance=131' 19049+0433  HDS2707 distance=132' 18526+0212  TDS 951 distance=132' 19021+0230  BAL1973 distance=135' 18545+0154  STTA176CD distance=139' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show Alya 18562+0412 STF2417 AB 106 22.4
Show Alya 18562+0412 STF2417 AC 58 421.0
Show 18562+0412 STF2417 BC 56 405.6 1
Show 18566+0416 TOK 620 270 842.1 8
Show 18573+0422 J 2159 186 7.1 18
Show 18578+0409 HJ 873 73 21.6 24
Show 18583+0347 HDS2690 14 0.1 41
Show 18578+0339 BAL2501 346 3.7 41
Show 18532+0413 A 358 AB 109 1.6 46
Show 18532+0413 GII 274 Aa,Ab 157 0.1 46
Show 18558+0327 A 2192 319 0.2 46
Show 18572+0500 HEI 898 183 2.2 49
Show 18559+0323 A 2193 357 1.0 51
Show 18590+0330 ALL 3 A,BC 47 34.7 59
Show 18590+0330 VOU 39 BC 175 0.2 59
Show 18525+0420 J 2155 276 8.1 60
Show 18583+0503 KPP2008 250 16.0 60
Show 18578+0315 UC 243 91 10.8 62
Show 18534+0323 STF2413 200 10.3 65
Show 18574+0302 UC 242 180 19.8 73
Show 18514+0351 DOO 72 52 31.5 75
Show 18553+0251 ROE 8 246 5.6 83
Show 18586+0237 A 2194 AB 325 1.5 103
Show 18564+0228 J 2681 BC 101 6.2 103
Show 18564+0228 J 2681 AB 34 83.4 104
Show 19031+0350 HJL1100 22 88.6 105
Show 18570+0228 HJ 5504 306 68.6 106
Show 19030+0440 KPP 431 158 3.2 106
Show 18580+0554 CSN 11 AB 179 4.4 106
Show 18580+0554 CSN 11 AC 271 7.1 106
Show 18580+0554 CSN 11 AD 275 8.3 106
Show 18580+0554 CSN 11 AE 215 8.5 106
Show 18580+0554 CSN 11 AF 330 9.3 106
Show 18580+0554 CSN 11 AG 108 10.5 106
Show 18580+0554 CSN 11 AH 251 11.6 106
Show 18580+0554 CSN 11 AI 299 11.7 106
Show 18580+0554 CSN 11 AJ 218 12.4 106
Show 18580+0554 CSN 11 AK 310 13.6 106
Show 18580+0554 CSN 11 AL 51 16.4 106
Show 18580+0554 CSN 11 AM 231 16.6 106
Show 19034+0432 TDS 962 138 1.0 109
Show 18581+0559 OL 215 104 5.7 111
Show 19002+0237 J 474 101 2.9 113
Show 19004+0552 LDS6333 26 17.3 118
Show 18530+0602 LDS1016 108 7.6 123
Show 18549+0615 J 1267 236 5.4 124
Show 18584+0614 TOK 621 155 999.9 127
Show 18588+0207 MIL 6 87 0.5 131
Show 19049+0433 HDS2707 145 0.1 132
Show 18526+0212 TDS 951 113 0.7 132
Show 19021+0230 BAL1973 190 10.7 135

 
 
WDS 18562+0412 : COMPONENTS
 
 
  A B
B pa=103.6°
sep=22.47"
 
C pa=58.0°
sep=420.14"
pa=55.8°
sep=404.73"
 
 
18562+0412 A
 
 
Common name Alya Other names Alga Coord arcsec 2000 185613.18+041212.9 Mag 4.59
Spectral class A5V (white) PmRA 38.00 PmDE 27.0 SAO 124068
HIP 92946 Tycho2 0457-00687-1 HD 175638 HR 7141
GC 25991 BD BD+04 3916 Bayer Theta 1 Serpentis Bayer name The1 Ser
Flamsteed 63 Serpentis Flamsteed name 63 Ser FK5 709
Tycho2
Tycho2 0457-00687-1 Pflag RAmdeg 284.05494550 DEmdeg 4.20359728
PmRA 46.7 PmDE 29.8 E RAmdeg 3 E DEmdeg 4
E pmRA 0.4 E pmDE 0.4 EpRAm 1990.73 EpDEm 1989.92
Num 25 Q RAmdeg 1.7 Q DEmdeg 1.5 Q pmRA 1.5
Q pmDE 1.2 BTmag 4.776 E BTmag 0.014 VTmag 4.592
E VTmag 0.009 Prox 224 TYC T HIP 92946
CCDM A RAdeg 284.05483778 DEdeg 4.20352833 EpRA 1990 1.73
EpDE 1990 1.66 E RAdeg 3.4 E DEdeg 3.6 Posflg
Corr -0.3
SAO
SAO 124068 DelFlag RA1950 PmRA1950 0.0031
DE1950 PmDE1950 0.032 Vmag 4.5 SpType A5
Double code Source 74 CatNum 709 DM BD+04 3916
DMcomp BDsup HD 175638 M HD 0
GC 25991 RA1950rad 4.94684312 DE1950rad 0.07220452 PmRA2000 0.0033
PmDE2000 0.031
Hipparcos
Catalog H HIP 92946 Proxy RAhms 18 56 13.16
DEdms +04 12 12.7 Vmag 4.62 VarFlag R Vmag G
RAdeg 284.055 DEdeg 4.20353 AstroRef A Plx 24.73
CCDM 18563+0413 N CCDM I Nsys 3 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 175638 BD BD+04 3916
CD CP Dm number +04 3916 VIred 0.2
SpType A5V R SpType Coord arcsec 2000 185613.16+041212.7
Hipparcos 2
HIP 92946 Sn 95 So 3 Nc 1
RArad 4.95769212 DErad 0.0733654477 Plx 21.09 PmRA 36.23
PmDE 23.15 E RArad 2.28 E DErad 1.69 E Plx 2.86
E pmRA 2.66 E pmDE 2.12 Hpmag 4.6864 E Hpmag 0.0655
SHp 0.098 VA 0 BV 0.161 E BV 0.01
VI 0.2
 
 
18562+0412 B
 
 
Coord arcsec 2000 185614.64+041207.6 Coord calc 185614.64+041207.6 Mag 4.93 Spectral class A5Vn (white)
PmRA 52.00 PmDE 31.0 SAO 124070 HIP 92951
Tycho2 0457-00688-1 HD 175639 HR 7142 GC 25993
BD BD+04 3917 Bayer Theta 2 Serpentis Bayer name The2 Ser Flamsteed 63 Serpentis
Flamsteed name 63 Ser Calc delta mag 0.34
Tycho2
Tycho2 0457-00688-1 Pflag RAmdeg 284.06098815 DEmdeg 4.20209847
PmRA 42.0 PmDE 13.4 E RAmdeg 3 E DEmdeg 4
E pmRA 2.3 E pmDE 2.4 EpRAm 1991.76 EpDEm 1991.65
Num 3 Q RAmdeg 4.0 Q DEmdeg 0.8 Q pmRA 3.9
Q pmDE 0.7 BTmag 5.153 E BTmag 0.014 VTmag 4.930
E VTmag 0.009 Prox 224 TYC T HIP 92951
CCDM B RAdeg 284.06089222 DEdeg 4.20206750 EpRA 1990 1.78
EpDE 1990 1.69 E RAdeg 3.4 E DEdeg 3.7 Posflg
Corr -0.1
SAO
SAO 124070 DelFlag RA1950 PmRA1950 0.0031
DE1950 PmDE1950 0.027 Vmag 5.4 SpType A5
Double code Source 70 CatNum 25993 DM BD+04 3917
DMcomp BDsup HD 175639 M HD 0
GC 25993 RA1950rad 4.94694812 DE1950rad 0.0721776 PmRA2000 0.0033
PmDE2000 0.026
Hipparcos
Catalog H HIP 92951 Proxy RAhms 18 56 14.61
DEdms +04 12 07.4 Vmag 4.98 VarFlag R Vmag G
RAdeg 284.061 DEdeg 4.20206 AstroRef B Plx 22.84
CCDM 18563+0413 N CCDM I Nsys 3 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD 175639 BD BD+04 3917
CD CP Dm number +04 3917 VIred 0.22
SpType A5Vn R SpType Coord arcsec 2000 185614.61+041207.4
Hipparcos 2
HIP 92951 Sn 95 So 3 Nc 1
RArad 4.957797707 DErad 0.0733397876 Plx 19.25 PmRA 42.13
PmDE 23.98 E RArad 2.92 E DErad 2.25 E Plx 3.57
E pmRA 3.23 E pmDE 2.66 Hpmag 5.056 E Hpmag 0.0828
SHp 0 VA 0 BV 0.204 E BV 0.008
VI 0.22
 
 
18562+0412 C
 
 
Coord arcsec 2000 185637.01+041555.4 Mag 6.78 PmRA -1.00 PmDE -84.0
Calc delta mag 2.19 Calc coord yes