18520+3731 ES 2026 BC

 
 
18h 52m 03.12s +37° 30' 52.2" P.A. 334.00 sep 4.6 mag 12.80,13.30
 
 
Coord 2000 18520+3731 Discov num ES 2026 Comp BC Coord arcsec 2000 18 52 03.12 +37 30 52.2
Date first 1923 Date last 2015 Obs 4
Pa first 340 Pa last 334.4 P.A. Now (θ) 334.4°
Sep first 5.1 Sep last 4.613 Sep. Now (ρ) 4.613"
Mag pri 12.80 Mag sec 13.30 delta mag (ΔM) 0.5 Spectral class
Pri motion ra +019 Sec motion ra
Pri motion dec -020 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18520+3731 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 67494 18 52 02 +37 30 60 ES 2026 AB 2015 4 112 20.5 7.34 12.80 5.46
Show 18 52 03 +37 30 52 ES 2026 BC 2015 4 334 4.6 12.80 13.30 0.50 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra Gaia DR2 2093997771726942080
 
 
WDS 18520+3731 ES 2026 BC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Es_1901 Mb - Espin, T.E. 1901AN....155..321E
Es_1901 AN 155, 321, 1901 (ES 1 - 39)
Es_1902a Ma - Espin, T.E. 1902AN....158..241E
Es_1902a +Mb AN 158, 241, 1902 (ES 40 - 112)
Es_1902b Mb - Espin, T.E. 1902MNRAS..62..528E
Es_1902b MNRAS 62, 528, 1902
Es_1902c Mb j Espin, T.E. 1902MNRAS..62..402E
Es_1902c MNRAS 62, 402, 1902
Es_1903 Mb - Espin, T.E. 1903MNRAS..63..172E
Es_1903 MNRAS 63, 172, 1903 (ES 113 - 150)
Es_1904a - Espin, T.E. 1904MNRAS..64..238E
Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E
Es_1904b Mb - Espin, T.E. 1904MNRAS..64..675E
Es_1904b MNRAS 64, 675, 1904
Es_1905 Mb - Espin, T.E. 1905MNRAS..65..710E
Es_1905 MNRAS 65, 710, 1905 (ES 151 - 221)
Es_1906a Mb - Espin, T.E. 1906MNRAS..66..141E
Es_1906a MNRAS 66, 141, 1906 (ES 222 - 269)
Es_1906b Mb - Espin, T.E. 1906MNRAS..66..430E
Es_1906b MNRAS 66, 430, 1906 (ES 270 - 311)
Es_1906C Mb - Espin, T.E. 1906QB821.B972.....
Es_1906C cited in BDS (Burnham Double Star Cat.), 1906
Es_1906D Mb - Espin, T.E. 1906MmRAS..56....1L
Es_1906D cited by Lewis (MemRAS 56, 1, 1906)
Es_1907a Mb j Espin, T.E. 1907MNRAS..67..190E
Es_1907a MNRAS 67, 190, 1907 (ES 312 - 403)
Es_1907b Mb - Espin, T.E. 1907MNRAS..67..495E
Es_1907b MNRAS 67, 495, 1907 (ES 404 - 442)
Es_1908a Mb j Espin, T.E. 1908MNRAS..68..202E
Es_1908a MNRAS 68, 202, 1908 (ES 443 - 551)
Es_1908b Mb - Espin, T.E. 1908MNRAS..68..523E
Es_1908b MNRAS 68, 523, 1908 (ES 552 - 609)
Es_1908c - Espin, T.E. 1908JRASC...2..248E
Es_1908c JRASC 2, 248, 1908 (data also in MNRAS 69, 218, 1909) 1909MNRAS..69..218E
Es_1909a Mb j Espin, T.E. 1909MNRAS..69..218E
Es_1909a MNRAS 69, 218, 1909 (ES 610 - 704)
Es_1909b Mb j Espin, T.E. 1909MNRAS..69..604E
Es_1909b MNRAS 69, 604, 1909 (ES 705 - 743)
Es_1910a Mb - Espin, T.E. 1910MNRAS..70..237E
Es_1910a MNRAS 70, 237, 1910 (ES 744 - 864)
Es_1910b Mb - Espin, T.E. 1910MNRAS..70..541E
Es_1910b MNRAS 70, 541, 1910 (ES 865 - 927)
Es_1911 Mb - Espin, T.E. 1911MNRAS..71..217E
Es_1911 MNRAS 71, 217, 1911 (ES 928 - 1051)
Es_1912 Mb - Espin, T.E. 1912MNRAS..72..191E
Es_1912 MNRAS 72, 191, 1912 (ES 1052 - 1125)
Es_1913 Mb j Espin, T.E. 1913MNRAS..73..162E
Es_1913 MNRAS 73, 162, 1913 (ES 1126 - 1191)
Es_1914 Mb j Espin, T.E. 1914MNRAS..74..244E
Es_1914 MNRAS 74, 244, 1914 (ES 1192 - 1293)
Es_1915a Mb - Espin, T.E. 1915MNRAS..75..203E
Es_1915a MNRAS 75, 203, 1915 (ES 1294 - 1356)
Es_1915b Mb - Espin, T.E. 1915MNRAS..75..555E
Es_1915b MNRAS 75, 555, 1915 (ES 1357 - 1405)
Es_1915c Mb - Espin, T.E. 1915MNRAS..76..210E
Es_1915c MNRAS 76, 210, 1915 (ES 1406 - 1479)
Es_1917 Mb - Espin, T.E. 1917MNRAS..77..236E
Es_1917 MNRAS 77, 236, 1917 (ES 1480 - 1600)
Es_1918 Mb j Espin, T.E. 1918MNRAS..78..189E
Es_1918 MNRAS 78, 189, 1918 (ES 1601 - 1705, MLB 1 - 35)
Es_1919 Mb - Espin, T.E. 1919MNRAS..79..211E
Es_1919 MNRAS 79, 211, 1919 (ES 1706 - 1768, MLB 36 - 106)
Es_1920 Mb - Espin, T.E. 1920MNRAS..80..329E
Es_1920 MNRAS 80, 329, 1920 (ES 1769 - 1805, MLB 107 - 149)
Es_1921 Mb j Espin, T.E. 1921MNRAS..81..232E
Es_1921 MNRAS 81, 232, 1921 (ES 1806 - 1864, MLB 150 - 182)
Es_1922 Mb - Espin, T.E. 1922MNRAS..82..187E
Es_1922 MNRAS 82, 187, 1922 (ES 1865 - 1933, MLB 183 - 241)
Es_1923 Mb - Espin, T.E. 1923MNRAS..83..154E
Es_1923 MNRAS 83, 154, 1923 (ES 1934 - 2006, MLB 242 - 275)
Es_1924 Mb - Espin, T.E. 1924MNRAS..84..162E
Es_1924 MNRAS 84, 162, 1924 (ES 2007 - 2078, MLB 276 - 322)
Es_1925a Mb - Espin, T.E. 1925MNRAS..85..276E
Es_1925a MNRAS 85, 276, 1925 (ES 2079 - 2137, MLB 323 - 376)
Es_1925b Mb - Espin, T.E. 1925MNRAS..86...79E
Es_1925b MNRAS 86, 79, 1925
Es_1926 Mb - Espin, T.E. 1926MNRAS..86..131E
Es_1926 MNRAS 86, 131, 1926 (ES 2138 - 2209, MLB 377 - 440)
Es_1927 Mb - Espin, T.E. 1927MNRAS..87..215E
Es_1927 MNRAS 87, 215, 1927 (ES 2210 - 2273, MLB 441 - 510)
Es_1928 Mb - Espin, T.E. 1928MNRAS..88..185E
Es_1928 MNRAS 88, 185, 1928 (ES 2274 - 2328, MLB 511 - 551)
Es_1929 Mb - Espin, T.E. 1929MNRAS..89..268E
Es_1929 MNRAS 89, 268, 1929 (ES 2329 - 2362, MLB 552 - 591)
Es_1930 Mb - Espin, T.E. 1930MNRAS..90..317E
Es_1930 MNRAS 90, 317, 1930 (ES 2363 - 2400, MLB 592 - 630)
Es_1931 Mb - Espin, T.E. 1931MNRAS..91..294E
Es_1931 MNRAS 91, 294, 1931 (ES 2401 - 2444, MLB 631 - 673)
Es_1932a Mb - Espin, T.E. 1932MNRAS..92..214E
Es_1932a MNRAS 92, 214, 1932 (ES 2445 - 2543, MLB 674 - 732)
Es_1932B Mb - Espin, T.E. 1932QB821.A43......
Es_1932B cited in ADS (Aitken Double Star Cat.), 1932
Es_1933 Mb - Espin, T.E. 1933MNRAS..93..192E
Es_1933 MNRAS 93, 192, 1933 (ES 2544 - 2575, MLB 733 - 806)
Es_1937A Mb - Espin, T.E. 1937AnLei..18....1S
Es_1937A cited by Strand (Ann. Sterrew. Leiden 18, 1937)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18520+3731 ES 2026 BC 2000 2 330 4.4 12.80 13.30 D 185203.12+373052.2
18520+3731 ES 2026 BC 2002 3 332 4.5 12.80 13.30 D 185203.12+373052.2
18520+3731 ES 2026 BC 2015 4 334 4.6 12.80 13.30 185203.12+373052.2

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

 
 
WDS 18520+3731 ES 2026 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18520+3731 ES 2026 BC : MEASURES
 
 
No records found.

 
 
WDS 18520+3731 : VIRTUAL EYEPIECE
 
 

18520+3731 ES 2026A mag 7.34 Sp B8V 18520+3731 ES 2026B sep 20.6 P.A. 110.70 mag 12.8 18520+3731 ES 2026C sep 18.0 P.A. 100.10 mag 13.3 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 18520+3731 : ALADIN DSS IMAGE @ 18h 52m 03.12s +37° 30' 52.2"
 
 
 
 
WDS 18520+3731 ES 2026 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18520+3731  ES 2026BC distance=0' 18520+3731  ES 2026AB distance=1' 18516+3739  ES 2025AB distance=10' 18516+3739  ES 2025AD distance=10' 18516+3739  FYM  39AE distance=10' 18516+3739  FYM  39AF distance=10' 18516+3739  FYM  39AG distance=10' 18516+3739  ES 2025BC distance=10' 18516+3739  ES 2025BD distance=10' 18534+3728  HO   89 distance=16' 18523+3713  COU1311 distance=18' 18540+3723  BU  137AB distance=25' 18540+3723  BU  137AC distance=25' 18541+3743  TOI1191 distance=28' 18527+3704  UC 3706 distance=28' 18536+3752  ES 2027 distance=28' 18545+3719  HO   90 distance=32' 18537+3658  H 6   3 distance=39' 18532+3654  TDT1110 distance=40' 18516+3648  ES  241 distance=43' 18550+3702  L    41 distance=44' 18545+3654  SMR  13HI distance=45' 18536+3651  UC 3714 distance=45' 18483+3741  UC 3677 distance=46' 18545+3654  ES 2028BC distance=46' 18546+3656  ELS   7AB distance=47' 18546+3656  ELS   7AC distance=47' 18536+3814  UC 3713 distance=47' 18545+3654  ES 2028AB distance=48' 18545+3654  SMR  13AD distance=48' 18545+3654  SMR  13AE distance=48' 18545+3654  SMR  13AF distance=48' 18545+3654  SMR  13AG distance=48' 18545+3654  SMR  13AH distance=48' 18545+3654  SMR  13AJ distance=48' 18545+3654  SMR  13AK distance=48' 18559+3707  ES 2486 distance=53' 18496+3818  AG  226 distance=56' 18496+3819  FYM 173 distance=57' 18551+3645  ES 2485 distance=59' 18562+3803  UC 3731 distance=60' 18572+3704  ES 2030AB distance=67' 18572+3704  ES 2030AC distance=67' 18471+3656  COU1310 distance=69' 18475+3647  ES 2022 distance=70' 18463+3745  ES 2484 distance=71' 18530+3621  HJ 1354AB distance=71' 18529+3614  A  1383 distance=78' 18504+3614  ES 2024 distance=80' 18459+3657  COU1309 distance=82' 18466+3821  HU 1191 distance=82' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 18520+3731 ES 2026 BC 334 4.6
Show 18520+3731 ES 2026 AB 112 20.5 1
Show 18516+3739 ES 2025 AB 353 25.0 10
Show 18516+3739 ES 2025 AD 356 30.1 10
Show 18516+3739 FYM 39 AE 299 63.2 10
Show 18516+3739 FYM 39 AF 205 87.9 10
Show 18516+3739 FYM 39 AG 116 55.1 10
Show 18516+3739 ES 2025 BC 78 5.9 10
Show 18516+3739 ES 2025 BD 11 5.3 10
Show 18534+3728 HO 89 170 6.0 16
Show 18523+3713 COU1311 226 1.3 18
Show 18540+3723 BU 137 AB 167 1.6 25
Show 18540+3723 BU 137 AC 146 23.6 25
Show 18541+3743 TOI1191 86 0.7 28
Show 18527+3704 UC 3706 241 15.4 28
Show 18536+3752 ES 2027 137 4.1 28
Show 18545+3719 HO 90 228 4.0 32
Show 18537+3658 H 6 3 20 175.3 39
Show 18532+3654 TDT1110 3 1.3 40
Show 18516+3648 ES 241 72 2.2 43
Show 18550+3702 L 41 32 1.7 44
Show 18545+3654 SMR 13 HI 251 26.1 45
Show 18536+3651 UC 3714 305 76.2 45
Show 18483+3741 UC 3677 338 64.3 46
Show 18545+3654 ES 2028 BC 135 2.1 46
Show 18546+3656 ELS 7 AB 338 8.5 47
Show 18546+3656 ELS 7 AC 121 10.3 47
Show 18536+3814 UC 3713 297 81.8 47
Show 18545+3654 ES 2028 AB 349 86.3 48
Show 18545+3654 SMR 13 AD 210 193.1 48
Show 18545+3654 SMR 13 AE 238 400.6 48
Show 18545+3654 SMR 13 AF 245 369.4 48
Show 18545+3654 SMR 13 AG 261 335.9 48
Show 18545+3654 SMR 13 AH 284 229.4 48
Show 18545+3654 SMR 13 AJ 249 279.5 48
Show 18545+3654 SMR 13 AK 236 304.2 48
Show 18559+3707 ES 2486 269 7.9 53
Show 18496+3818 AG 226 54 26.0 56
Show 18496+3819 FYM 173 166 19.3 57
Show 18551+3645 ES 2485 162 6.2 59
Show 18562+3803 UC 3731 213 23.7 60
Show 18572+3704 ES 2030 AB 233 2.9 67
Show 18572+3704 ES 2030 AC 240 12.7 67
Show 18471+3656 COU1310 4 1.5 69
Show 18475+3647 ES 2022 127 4.5 70
Show 18463+3745 ES 2484 153 6.8 71
Show 18530+3621 HJ 1354 AB 5 10.2 71
Show 18529+3614 A 1383 299 1.4 78
Show 18504+3614 ES 2024 351 6.4 80
Show 18459+3657 COU1309 175 0.5 82
Show 18466+3821 HU 1191 338 0.2 82

 
 
WDS 18520+3731 : COMPONENTS
 
 
  A B
B pa=110.7°
sep=20.61"
 
C pa=100.1°
sep=17.97"
pa=339.2°
sep=4.45"
 
 
18520+3731 A
 
 
Coord arcsec 2000 185201.50+373059.5 Mag 7.34 Spectral class B8V (blue-white) PmRA 1.00
PmDE -4.0 SAO 67494 HIP 92590 Tycho2 3119-02078-1
HD 175081 ADS 11777 BD BD+37 3262
Tycho2
Tycho2 3119-02078-1 Pflag RAmdeg 283.00625951 DEmdeg 37.51651702
PmRA 1.1 PmDE -5.0 E RAmdeg 4 E DEmdeg 4
E pmRA 1.3 E pmDE 1.5 EpRAm 1991.31 EpDEm 1991.49
Num 12 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 1.2
Q pmDE 0.7 BTmag 7.242 E BTmag 0.015 VTmag 7.306
E VTmag 0.010 Prox 999 TYC T HIP 92590
CCDM RAdeg 283.00625639 DEdeg 37.51652861 EpRA 1990 1.57
EpDE 1990 1.69 E RAdeg 4.2 E DEdeg 4.1 Posflg
Corr 0.0
SAO
SAO 67494 DelFlag RA1950 PmRA1950 0.0008
DE1950 PmDE1950 -0.013 Vmag 7.9 SpType B3
Double code Source 5 CatNum 1703 DM BD+37 3262
DMcomp BDsup HD 175081 M HD 0
GC RA1950rad 4.93184183 DE1950rad 0.65371177 PmRA2000 0.0012
PmDE2000 -0.013
Hipparcos
Catalog H HIP 92590 Proxy RAhms 18 52 01.50
DEdms +37 30 59.5 Vmag 7.33 VarFlag R Vmag G
RAdeg 283.006 DEdeg 37.5165 AstroRef Plx 3.65
CCDM 18520+3731 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 175081 BD BD+37 3262
CD CP Dm number +37 3262 VIred -0.06
SpType B5n R SpType Coord arcsec 2000 185201.50+373059.5
Hipparcos 2
HIP 92590 Sn 5 So 0 Nc 1
RArad 4.9393909624 DErad 0.6547869994 Plx 2.83 PmRA 1.61
PmDE -2.61 E RArad 0.31 E DErad 0.44 E Plx 0.49
E pmRA 0.38 E pmDE 0.5 Hpmag 7.3117 E Hpmag 0.001
SHp 0.011 VA 0 BV -0.078 E BV 0.008
VI -0.06
CCDM
Ccdm 18520+3731 RComp Comp A Note1
Note2 Discov num DRAs 1.50 DDEs -0.4
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.1 Sp B3 PmNote *
PmRA 1 PmDE -4 Dm number +37 3262 Cat1 BD
Name2 +37 1703 Cat2 AGK2/3 HD 175081 M HD
ADS BDS A11777 M ADS BDS N IDS IDS 18486N3724A
HIC 92590
 
 
18520+3731 B
 
 
Coord arcsec 2000 185203.12+373052.2 Coord calc 185203.12+373052.2 Mag 12.8 PmRA 19.00
PmDE -20.0 Calc delta mag 5.46
CCDM
Ccdm 18520+3731 RComp Comp B Note1
Note2 Discov num ES 2026 DRAs DDEs
R dRAs Year 1923 Theta 108 Rho 19.7
Obs 1 Vmag 12.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11777 M ADS BDS N IDS IDS 18486N3724B
HIC
 
 
18520+3731 C
 
 
Coord arcsec 2000 185202.99+373056.4 Mag 13.3 Calc delta mag 5.96 Calc coord yes
CCDM
Ccdm 18520+3731 RComp B Comp C Note1
Note2 Discov num ES 2026 DRAs DDEs
R dRAs Year 1923 Theta 340 Rho 5.0
Obs 1 Vmag 13.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11777 M ADS BDS N IDS IDS 18486N3724C
HIC