18453-2039 EVS 37 AC

 
 
18h 45m 17.50s -20° 38' 50.5" P.A. 67.00 sep 10.8 mag 7.50,16.00 Sp F8Ib dist. 628.93 pc (2051.57 l.y.)
 
 
Coord 2000 18453-2039 Discov num EVS  37 Comp AC Coord arcsec 2000 18 45 17.50 -20 38 50.5
Date first 2011 Date last 2015 Obs 2
Pa first 66 Pa last 66.5 P.A. Now (θ) 66.5°
Sep first 10.6 Sep last 10.762 Sep. Now (ρ) 10.762"
Mag pri 7.50 Mag sec 16.00 delta mag (ΔM) 8.5 Spectral class F8Ib (yellow-white)
Pri motion ra -000 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes N U (See Notes, Proper motion indicates non-physical)
This double is not physical.
 
 
18453-2039 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 187233 18 45 18 -20 38 50 GAA 14 Aa,Ab 2013 2 349 0.0 8.10 8.40 0.30
Show 187233 18 45 18 -20 38 50 EVS 37 AB 2011 1 128 3.1 7.50 17.90 10.40
Show 187233 18 45 18 -20 38 50 EVS 37 AC 2015 2 67 10.8 7.50 16.00 8.50 <===
Show 187233 18 45 18 -20 38 50 EVS 37 AD 2011 1 156 10.6 7.50 16.10 8.60
Show 187233 18 45 18 -20 38 50 EVS 37 AE 2015 2 271 11.5 7.50 18.70 11.20
Show 187233 18 45 18 -20 38 50 EVS 37 AF 2015 3 330 18.2 7.50 16.90 9.40
Show V350 Sgr 187233 18 45 18 -20 38 50 KRV 18 AG 2015 7 250 29.9 7.50 12.30 4.80
Show 187233 18 45 18 -20 38 50 KRV 18 AH 2015 5 304 34.9 7.50 17.00 9.50
Ninefold system
8 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V350 Sgr Constellation Sagittarius SAO 187233 HIP 92013
Tycho2 6292-00030-1 Gaia DR2 4080122796947250176 HD 173297 BD BD-20 5253
Distance 628.93 Distance ly 2051.57
 
 
WDS 18453-2039 EVS 37 AC : NOTES
 
 
discov_num notes refcode
EVS 37 Primary is the Cepheid V350 Sgr. Evs2016a
 
 
REFERENCES
 
 
refcode metd author reference
Evs2016a H3 - Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Tingle, E., Karovska, M., & 2016AJ....151..129E
Evs2016a Pillitteri, I.
Evs2016a AJ 151, 129, 2016
Evs2016a (some theta values replaced with more precise values from Evs2016b) 2016AJ....151..108E
 
 
DISCOVERER
 
 
idgroup discov author
1 GAA Gallenne, A., Merand, A., Kervella, P., Breitfelder, J., Le Bouquin, J.-B.,
1 GAA Monnier,J.D., Gieren, W., Pilecki, B., & Pietryznski, G.
2 GAA Gallenne, A., Kervella, P., Merand, A., Evans, N.R., Girard, J.H.V., Gieren, W., &
2 GAA Pietryznski, G.
3 GAA Gallenne, A., Merand, A., Kervella, P., Monnier, J.D., Schaefer, G.H., Baron, F.,
3 GAA Breitfelder, J., Le Bouquin, J.-B., Roettenbacher, R.M., Gieren, W.,
3 GAA Pietrzynski, G., McAlister, H., et al.
4 GAA Gallenne, A., Pietrzynski, G., Graczyk, D., Konorski, P., Kervella, P.,
4 GAA Merand, A., Gieren, W., Anderson, R.L., & Villanova, S.
5 GAA Gallenne, A., Kervella, P., Evans, N.R., Proffitt, C.R., Monnier, J.D., Merand, A.,
5 GAA Nelan, E., Winston, E., Pietrzynski, G., Schaefer, G., Gieren, W., Anderson, R.I.,
5 GAA Borgniet, S., Kraus, S., Roettenbacher, R.M., Baron, F., Pilecki, B., Taormina, M.,
5 GAA Graczyk, D., Mowlavi, N. & Eyer, L.
6 GAA Gallenne, A., Pietrzynski, G., Graczyk, D., Pilecki, B., Storm, J., Nardetto, N.,
6 GAA Taormina, M., Gieren, W., Tkachenko, A., Kervella, P., Merand, A. & Weber, M.
7 GAA Gallenne, A., Kervella, P., Borgniet, S., Merand, A., Pietrzynski, G., Gieren, W.,
7 GAA Monnier, J.D., Schaefer, G.H., Evans, N.R., Anderson,R.I., Baron, F.,
7 GAA Roettenbacher, R.M. & Karczmarek, P.
8 GAA Gallenne, A., Merand, A., Kervella, P., Graczyk, D., Pietrzynski, G., Gieren, W. &
8 GAA Pilecki, B.
9 KRV Kervella, P., Thevenin, F., & Petr-Gotzens, M.G.
18 KRV Kervella, P., Gallenne, A., Evans, N.R., Szabados, L., Arenouu, F., Merand, A.,
18 KRV Proto, Y., Karczmarek, P., Nardetto, N., Gieren, W. & Pietrzynski, G.
19 KRV Kervella, P., Gallenne, A., Evans, N.R., Szabados, L., Arenouu, F., Merand, A.,
19 KRV Nardetto, N., Gieren, W. & Pietrzynski, G.
21 KRV Kervella, P., Borgniet, S., de Souza, A.D., Merand, A., Gallenne, A., Rivinius, T.,
21 KRV Lacour, S., Carciofi, A., Faes, D.M., Le Bouquin, J.-B., Taormina, M., Pilecki, B.,
21 KRV Berger, J.-P., Bendjoya, P., Klement, R., Millour, F., Janot-Pacheco, E., Spang, A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18453-2039 EVS 37 AC 2011 1 66 10.6 7.52 16.00 F8Ib/II NU 184517.50-203850.5
18453-2039 EVS 37 AC 2015 2 67 10.8 7.52 16.00 F8Ib/II NU 184517.50-203850.5

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

 
 
WDS 18453-2039 EVS 37 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18453-2039 EVS 37 AC : MEASURES
 
 
No records found.

 
 
WDS 18453-2039 : VIRTUAL EYEPIECE
 
 

18453-2039 EVS  37A mag 7.5 Sp F8Ib 18453-2039 GAA  14Ab mag 8.4 Sp A2V 18453-2039 EVS  37B sep 3.0 P.A. 129.90 mag 17.9 Sp K6 18453-2039 EVS  37C sep 10.2 P.A. 65.10 mag 16 18453-2039 EVS  37D sep 10.5 P.A. 157.40 mag 16.1 18453-2039 EVS  37E sep 10.8 P.A. 270.50 mag 18.7 18453-2039 EVS  37F sep 17.9 P.A. 331.40 mag 16.9 18453-2039 KRV  18G sep 28.2 P.A. 248.60 mag 12.3 Sp A2V 18453-2039 KRV  18H sep 33.4 P.A. 305.40 mag 17 Sp K4.5 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 18453-2039 : ALADIN DSS IMAGE @ 18h 45m 17.50s -20° 38' 50.5"
 
 
 
 
WDS 18453-2039 EVS 37 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18453-2039  EVS  37AC distance=0' 18462-2046  I  1030 distance=16' 18431-2051  ARA1159 distance=34' 18436-2013  DON 920 distance=35' 18452-2117  ARA1553 distance=38' 18474-2108  B  1889 distance=42' 18483-2033  DON 924 distance=44' 18441-1954  ARA1160 distance=48' 18439-1954  STN  44 distance=50' 18439-2130  KPP4118 distance=55' 18416-2108  KPP 422 distance=60' 18465-1940  BRT1543 distance=63' 18497-2019  SEE 362 distance=65' 18406-2034  OCC1080 distance=67' 18405-2040  OCC1079 distance=68' 18425-1943  ARA 761 distance=69' 18406-2016  ARA1157 distance=70' 18503-2100  ARA1554 distance=74' 18479-1936  J  1657 distance=75' 18406-2115  ARA1552 distance=75' 18483-1935  B  2461 distance=76' 18407-1957  ARA1158 distance=77' 18398-2052  OCC1078 distance=78' 18510-2018  PLT   3AB distance=83' 18510-2018  EVS  38AC distance=83' 18508-2111  SHN 235 distance=84' 18395-2101  RST5121AB distance=85' 18395-2101  HJ 2833AC distance=85' 18393-2038  ARA1156 distance=85' 18391-2025  ARA1155 distance=89' 18407-2139  RST5122 distance=89' 18429-1917  OCC9184 distance=89' 18510-1958  ARA1162AB distance=91' 18510-1958  FYM 269AC distance=91' 18510-1958  FYM 269AD distance=91' 18470-1912  HJ 2837 distance=91' 18412-1928  OCC9183 distance=92' 18389-2103  WSI  90AB distance=93' 18389-2103  TNN  11AC distance=93' 18389-2103  TNN  11AD distance=93' 18500-1933  KPP4124 distance=94' 18386-2020  DON 917 distance=96' 18484-2205  ARA1899 distance=97' 18387-2114  ARA1551 distance=99' 18385-2110  B  1888 distance=101' 18418-1909  J  2221AB distance=103' 18418-1909  J  2221AC distance=103' 18463-2224  SEE 360 distance=106' 18527-2014  OCC1017 distance=108' 18515-2143  DON 928 distance=108' 18378-2103  ARA1549 distance=108' 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 18453-2039 EVS 37 AB 128 3.1
Show 18453-2039 EVS 37 AC 67 10.8
Show 18453-2039 EVS 37 AD 156 10.6
Show 18453-2039 EVS 37 AE 271 11.5
Show 18453-2039 EVS 37 AF 330 18.2
Show 18453-2039 GAA 14 Aa,Ab 349 0.0
Show 18453-2039 KRV 18 AG 250 29.9
Show 18453-2039 KRV 18 AH 304 34.9
Show 18462-2046 I 1030 161 5.9 16
Show 18431-2051 ARA1159 84 11.7 34
Show 18436-2013 DON 920 336 1.4 35
Show 18452-2117 ARA1553 273 10.1 38
Show 18474-2108 B 1889 218 0.8 42
Show 18483-2033 DON 924 53 1.2 44
Show 18441-1954 ARA1160 184 8.4 48
Show 18439-1954 STN 44 316 1.6 50
Show 18439-2130 KPP4118 341 3.9 55
Show 18416-2108 KPP 422 299 4.7 60
Show 18465-1940 BRT1543 258 3.3 63
Show 18497-2019 SEE 362 13.8 65
Show 18406-2034 OCC1080 -1 0.0 67
Show 18405-2040 OCC1079 -1 0.0 68
Show 18425-1943 ARA 761 242 6.9 69
Show 18406-2016 ARA1157 356 9.5 70
Show 18503-2100 ARA1554 188 9.7 74
Show 18479-1936 J 1657 28 3.6 75
Show 18406-2115 ARA1552 287 12.6 75
Show 18483-1935 B 2461 197 6.7 76
Show 18407-1957 ARA1158 68 6.6 77
Show 18398-2052 OCC1078 -1 0.7 78
Show 18510-2018 PLT 3 AB 101 93.6 83
Show 18510-2018 EVS 38 AC 158 3.3 83
Show 18508-2111 SHN 235 -1 0.2 84
Show 18395-2101 RST5121 AB 21 4.2 85
Show 18395-2101 HJ 2833 AC 314 21.8 85
Show 18393-2038 ARA1156 16 15.8 85
Show 18391-2025 ARA1155 238 11.6 89
Show 18407-2139 RST5122 189 2.1 89
Show 18429-1917 OCC9184 -1 0.1 89
Show 18510-1958 ARA1162 AB 290 10.3 91
Show 18510-1958 FYM 269 AC 179 7.0 91
Show 18510-1958 FYM 269 AD 342 16.7 91
Show 18470-1912 HJ 2837 89 11.2 91
Show 18412-1928 OCC9183 -1 0.2 92
Show 18389-2103 WSI 90 AB 138 0.0 93
Show 18389-2103 TNN 11 AC 340 5.0 93
Show 18389-2103 TNN 11 AD 30 6.4 93
Show 18500-1933 KPP4124 15 1.5 94
Show 18386-2020 DON 917 51 1.1 96
Show 18484-2205 ARA1899 261 10.9 97
Show 18387-2114 ARA1551 137 6.1 99

 
 
WDS 18453-2039 : COMPONENTS
 
 
  A Ab B C D E F G
Ab pa=349.5°
sep=0.00"
 
B pa=129.9°
sep=2.98"
pa=129.9°
sep=2.98"
 
C pa=65.1°
sep=10.18"
pa=65.1°
sep=10.18"
pa=48.3°
sep=9.31"
 
D pa=157.4°
sep=10.49"
pa=157.4°
sep=10.49"
pa=167.3°
sep=7.97"
pa=200.4°
sep=14.91"
 
E pa=270.5°
sep=10.76"
pa=270.5°
sep=10.76"
pa=278.8°
sep=13.20"
pa=258.2°
sep=20.43"
pa=303.5°
sep=17.73"
 
F pa=331.4°
sep=17.89"
pa=331.4°
sep=17.89"
pa=328.4°
sep=20.69"
pa=302.7°
sep=21.14"
pa=333.6°
sep=28.34"
pa=8.0°
sep=15.76"
 
G pa=248.6°
sep=28.17"
pa=248.6°
sep=28.17"
pa=253.7°
sep=29.71"
pa=247.7°
sep=38.34"
pa=268.9°
sep=30.27"
pa=236.2°
sep=18.62"
pa=214.2°
sep=31.41"
 
H pa=305.4°
sep=33.38"
pa=305.4°
sep=33.38"
pa=305.7°
sep=36.35"
pa=292.4°
sep=39.43"
pa=312.9°
sep=42.64"
pa=319.4°
sep=25.31"
pa=281.0°
sep=19.01"
pa=358.1°
sep=29.60"
 
 
18453-2039 A
 
 
Coord arcsec 2000 184517.50-203850.5 Mag 7.5 Spectral class F8Ib (yellow-white) PmRA 0.00
PmDE -3.0 SAO 187233 HIP 92013 Tycho2 6292-00030-1
HD 173297 BD BD-20 5253
Tycho2
Tycho2 6292-00030-1 Pflag RAmdeg 281.32291535 DEmdeg -20.64737975
PmRA 0.1 PmDE -3.0 E RAmdeg 5 E DEmdeg 6
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.50 EpDEm 1991.28
Num 11 Q RAmdeg 1.4 Q DEmdeg 1.0 Q pmRA 1.4
Q pmDE 0.9 BTmag 8.538 E BTmag 0.017 VTmag 7.547
E VTmag 0.011 Prox 999 TYC T HIP 92013
CCDM RAdeg 281.32291500 DEdeg -20.64737306 EpRA 1990 1.92
EpDE 1990 1.84 E RAdeg 4.5 E DEdeg 6.1 Posflg
Corr 0.3
SAO
SAO 187233 DelFlag RA1950 PmRA1950 0.0061
DE1950 PmDE1950 -0.012 Vmag 8.3 SpType F5
Double code Source 23 CatNum 7876 DM BD-20 5253
DMcomp BDsup HD 173297 M HD 0
GC RA1950rad 4.89703663 DE1950rad -0.36128747 PmRA2000 0.0062
PmDE2000 -0.011
Hipparcos
Catalog H HIP 92013 Proxy RAhms 18 45 17.50
DEdms -20 38 50.5 Vmag 7.45 VarFlag 3 R Vmag H
RAdeg 281.323 DEdeg -20.6474 AstroRef Plx -0.1
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 173297 BD BD-20 5253
CD CP Dm number -20 5253 VIred 0.93
SpType F8Ib/II R SpType Coord arcsec 2000 184517.50-203850.5
Hipparcos 2
HIP 92013 Sn 5 So 0 Nc 1
RArad 4.9100110074 DErad -0.3603645916 Plx -1.59 PmRA 1.4
PmDE -4.4 E RArad 1.05 E DErad 0.61 E Plx 0.94
E pmRA 1.94 E pmDE 1.09 Hpmag 7.608 E Hpmag 0.0447
SHp 0.286 VA 1 BV 0.773 E BV 0.02
VI 0.93
 
 
18453-2039 Ab
 
 
Coord arcsec 2000 184517.50-203850.5 Mag 8.4 Spectral class A2V (white) Calc delta mag 0.3
Calc coord yes
 
 
18453-2039 B
 
 
Coord arcsec 2000 184517.66-203852.4 Mag 17.9 Spectral class K6 (yellow-orange) Calc delta mag 9.8
Calc coord yes
 
 
18453-2039 C
 
 
Coord arcsec 2000 184518.16-203846.2 Mag 16 Calc delta mag 7.9 Calc coord yes
 
 
18453-2039 D
 
 
Coord arcsec 2000 184517.79-203900.2 Mag 16.1 Calc delta mag 8 Calc coord yes
 
 
18453-2039 E
 
 
Coord arcsec 2000 184516.73-203850.4 Mag 18.7 Calc delta mag 10.6 Calc coord yes
 
 
18453-2039 F
 
 
Coord arcsec 2000 184516.89-203834.8 Mag 16.9 Calc delta mag 8.8 Calc coord yes
 
 
18453-2039 G
 
 
Coord arcsec 2000 184515.63-203900.8 Mag 12.3 Spectral class A2V (white) Calc delta mag 4.2
Calc coord yes
 
 
18453-2039 H
 
 
Coord arcsec 2000 184515.56-203831.2 Mag 17 Spectral class K4.5 (yellow-orange) Calc delta mag 8.9
Calc coord yes