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Current system
19490+7715
MLR 228
HD 188926


Nearby doubles
2' : 19486+7714
TDT1773

24' : 19439+7732
LOC 420

40' : 20006+7709
LOC 434

41' : 19370+7725
MLR 223

44' : 19554+7754
LOC 421

46' : 19510+7631
LDS1919

48' : 19367+7740
SLW1224

54' : 19392+7634
STF2592

57' : 19591+7630
HU 956AB

58' : 19421+7809
LOC 422

61' : 19391+7625
MLR 224

61' : 19399+7623
MLR 225

63' : 20077+7718
OL 122

67' : 20089+7715
LDS1928AB

68' : 20066+7643
TDT1986

69' : 19515+7607
LDS1920

69' : 19335+7631
UC 3975

69' : 20062+7756
LOC 435

70' : 20066+7639
SKF2804

71' : 20089+7743
STF2675AB

73' : 19430+7606
LOC 418

87' : 19295+7816
STF2571AB

89' : 19398+7553
LDS1913

100' : 19351+7847
LDS1912

100' : 19443+7538
LDS1915

112' : 19510+7524
STF2617



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.

19490+7715 MLR 228 (HD 188926)

 
 
19h 48m 57.85s +77° 15' 14.5" P.A. 266.00 sep 0.3 mag 9.80,10.40 Sp A2
 
 
Coord 2000 19490+7715 Discov num MLR 228 Comp Coord arcsec 2000 19 48 57.85 +77 15 14.5
Date first 1971 Date last 2010 Obs 6
Pa first 226 Pa last 265.8 P.A. Now (θ) 265.8°
Sep first 0.2 Sep last 0.295 Sep. Now (ρ) 0.295"
Mag pri 9.80 Mag sec 10.40 delta mag (ΔM) 0.6 Spectral class A2 (white)
Pri motion ra +002 Sec motion ra
Pri motion dec +006 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 188926 Constellation Draco SAO 9554 Tycho2 4588-00473-1
Gaia DR2 2289779045550371712 HD 188926
 
 
WDS 19490+7715 MLR 228 (HD 188926) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Mlr1938 Ma - Muller, P. 1938JO.....21..113M
Mlr1938 +Mc J. Obs. 21, 113, 1938
Mlr1939 - Muller, P. 1939JO.....22..181M
Mlr1939 J. Obs. 22, 181, 1939 (all data published elsewhere)
Mlr1946a Ma - Muller, P. 1946JO.....29...69M
Mlr1946a +Mc J. Obs. 29, 69, 1946
Mlr1946b Mc - Muller, P. (measure by Danjon, A.) 1946JO.....29...69M
Mlr1946b J. Obs. 29, 69, 1946
Mlr1947 Ma - Muller, P. 1947JO.....30..104M
Mlr1947 +Mc J. Obs. 30, 104, 1947
Mlr1948 Md - Muller, P. 1948AnStr...5....1M
Mlr1948 Ann. Obs. Strasbourg 5, pt. 1, 1948
Mlr1948 (Visual measures with double-image micrometer and 16cm refractor. No dates given
Mlr1948 for measures; default date = decade of publication added.)
Mlr1949a Md - Muller, P. 1949AnStr...5....2M
Mlr1949a Ann. Obs. Strasbourg 5, pt. 2, 1949
Mlr1949a (Visual measures with double-image micrometer and 49cm refractor. No dates given
Mlr1949a for measures; default date = decade of publication added.)
Mlr1949b Mc - Muller, P. 1949JO.....32...77M
Mlr1949b J. Obs. 32, 77, 1949
Mlr1949c orb - Muller, P. 1949JO.....32...34M
Mlr1949c J. Obs. 32, 34, 1949
Mlr1950a Mc - Muller, P. 1950JO.....33...93M
Mlr1950a J. Obs. 33, 93, 1950
Mlr1950b Mc - Muller, P. 1950JO.....33..105M
Mlr1950b J. Obs. 33, 105, 1950
Mlr1951a Mc - Muller, P. 1951JO.....34...81M
Mlr1951a J. Obs. 34, 81, 1951
Mlr1951b Md - Muller, P. 1951AnStr...5....3M
Mlr1951b Ann. Obs. Strasbourg 5, pt. 3, 1951
Mlr1951b (Visual measures with double-image micrometer and 16cm refractor. No dates given
Mlr1951b for measures; default date = decade of publication added.)
Mlr1951c Md - Muller, P. 1951AnStr...5....3M
Mlr1951c Ann. Obs. Strasbourg 5, pt. 3, 1951
Mlr1951c (Visual measures with double-image micrometer on 23 and 60cm refractors at
Mlr1951c Pic-du-Midi. See Mlr1950b. No dates listed; default date = decade of publication.)
Mlr1952a Mc - Muller, P. 1952JO.....35...95M
Mlr1952a J. Obs. 35, 95, 1952
Mlr1952b orb - Muller, P. .
Mlr1952b Bull. Astron. Paris 16, 203-212, 1952
Mlr1952c Md - Muller, P. 1952AnStr...5....4M
Mlr1952c Ann. Obs. Strasbourg 5, pt. 4, 1952
Mlr1952c (Visual measures with double-image micrometer and various filters on 16 and 49 cm
Mlr1952c refractors at Strasbourg and 60cm at Pic-du-Midi. Measures listed as "III" are
Mlr1952c tabulated. Some of these measures are incorporated in earlier MLR lists. No dates
Mlr1952c listed; default date = decade of publication.)
Mlr1952d orb - Muller, P. .
Mlr1952d Bull. Astron. Paris 16, 263-275, 1952
Mlr1952e orb - Muller, P. .
Mlr1952e Bull. Astron. Paris 16, 277-282, 1952
Mlr1952f - Muller, P. 1952POHP....2...49M
Mlr1952f Pub. Obs. Haute Provence 2, #49, 1952
Mlr1952g Md - Muller, P. 1952JO.....35..177M
Mlr1952g +Mc J. Obs. 35, 177, 1952
Mlr1953a - Muller, P. 1953JO.....36..104M
Mlr1953a J. Obs. 36, 104, 1953
Mlr1953b Mc - Muller, P. 1953JO.....36..130M
Mlr1953b J. Obs. 36, 130, 1953
Mlr1954a Mc - Muller, P. 1954AJ.....59..388M
Mlr1954a +orb AJ 59, 388, 1954
Mlr1954b orb - Muller, P. 1954JO.....37...61M
Mlr1954b J. Obs. 37, 61-72, 1954
Mlr1954c Mc - Muller, P. 1954JO.....37..125M
Mlr1954c J. Obs. 37, 125, 1954
Mlr1954d - Muller, P. 1954JO.....37..169M
Mlr1954d J. Obs. 37, 169, 1954
Mlr1955a orb - Muller, P. 1955JO.....38...17M
Mlr1955a J. Obs. 38, 17-26, 1955
Mlr1955b orb - Muller, P. 1955JO.....38...58M
Mlr1955b J. Obs. 38, 58-64, 1955
Mlr1955c Mc - Muller, P. 1955JO.....38..221M
Mlr1955c J. Obs. 38, 221, 1955
Mlr1956a Mc - Muller, P. 1956JO.....39..127M
Mlr1956a J. Obs. 39, 127, 1956
Mlr1956b orb - Muller, P. 1956AnStr...5...29M
Mlr1956b Ann. Obs. Strasbourg 5 pt. 29, 1956
Mlr1956c orb - Muller, P. .
Mlr1956c Bull. Astron. Paris 20, 145, 1956
Mlr1956d Mc - Muller, P. 1956JO.....39..181M
Mlr1956d J. Obs. 39, 183, 1956
Mlr1957a orb - Muller, P. .
Mlr1957a Bull. Astron. Paris 21, 131, 1957
Mlr1957b orb - Muller, P. 1957JO.....40...48M
Mlr1957b J. Obs. 40, 48, 1957
Mlr1957c Mc - Muller, P. 1958JO.....40..157M
Mlr1957c J. Obs. 40, 157, 1957
Mlr1958 Mc - Muller, P. 1958JO.....41..109M
Mlr1958 J. Obs. 41, 109, 1958
Mlr1959 Mc - Muller, P. 1959JO.....42...85M
Mlr1959 J. Obs. 42, 85, 1959
Mlr1963 orb - Muller, P. .
Mlr1963 Bull. Astron. Paris 24, 1, 1963
Mlr1966a Mc - Muller, P. 1966JO.....49..335M
Mlr1966a J. Obs. 49, 335, 1966
Mlr1966b orb - Muller, P. 1966IAUDS..39....1M
Mlr1966b Inf. Circ. 39, 1, 1966
Mlr1970 Ma - Muller, P. 1970A&AS....1..399M
Mlr1970 A&AS 1, 399, 1970
Mlr1973a Ma - Muller, P. .
Mlr1973a +Mc Pub. Obs. Paris, June 1973
Mlr1973b orb - Muller, P. 1973IAUDS..59....1M
Mlr1973b Inf. Circ. 59, 1, 1973
Mlr1973c Ma - Muller, P. 1973IAUDS..60....1M
Mlr1973c Inf. Circ. 60, 1, 1973
Mlr1973d Ma - Muller, P. 1973IAUDS..61R...1M
Mlr1973d Inf. Circ. 61, 1, 1973
Mlr1974b Ma - Muller, P. 1974IAUDS..62....1M
Mlr1974b Inf. Circ. 62, 1, 1974
Mlr1974 orb - Muller, P. 1974A&AS...13...99M
Mlr1974 A&AS 13, 99, 1974
Mlr1975a Ma - Muller, P. 1975IAUDS..64....1M
Mlr1975a Inf. Circ. 64, 1, 1975
Mlr1975b Ma - Muller, P. 1975IAUDS..67....1M
Mlr1975b Inf. Circ. 67, 1, 1975
Mlr1976b Ma - Muller, P. 1976IAUDS..70....1M
Mlr1976b Inf. Circ. 70, 1, 1976
Mlr1976 Mc - Muller, P. 1976A&AS...23..205M
Mlr1976 A&AS 23, 205, 1976
Mlr1978a orb - Muller, P. 1978A&AS...32..173M
Mlr1978a A&AS 32, 173, 1978
Mlr1978b Ma - Muller, P. 1978A&AS...33..275M
Mlr1978b A&AS 33, 275, 1978
Mlr1980a Ma - Muller, P. 1980IAUDS..81....1M
Mlr1980a Inf. Circ. 81, 1, 1980
Mlr1980b Ma - Muller, P. 1980IAUDS..82....1M
Mlr1980b Inf. Circ. 82, 1, 1980
Mlr1981 Ma - Muller, P. 1981IAUDS..85....1M
Mlr1981 Inf. Circ. 85, 1, 1981
Mlr1982 Ma - Muller, P. 1982IAUDS..88....1M
Mlr1982 Inf. Circ. 88, 1, 1982
Mlr1983 Ma - Muller, P. 1983IAUDS..90....1M
Mlr1983 Inf. Circ. 90, 1, 1983
Mlr1984 Ma j Muller, P. 1984A&AS...57..467M
Mlr1984 A&AS 57, 467, 1984
Mlr1986 Ma - Muller, P. 1986IAUDS..98....1M
Mlr1986 Inf. Circ. 98, 1, 1986
Mlr1987A Ma - Muller, P. 1987A&A....70..193C
Mlr1987A cited by Couteau (A&A 70, 193, 1987)
Mlr1990 Ma j Muller, P. 1990A&AS...84..619M
Mlr1990 A&AS 84, 619, 1990
Mlr1991b orb - Muller, P. 1991O&T....28...12M
Mlr1991b Obs. et Travaux 28, 12, 1991
Mlr1991 orb - Muller, P. 1991IAUDS.115....1M
Mlr1991 Inf. Circ. 115, 1, 1991
Mlr1993 Ma j Muller, P. 1993A&AS..102..643M
Mlr1993 A&AS 102, 643, 1993
Mlr1993b - Muller, P. 1993O&T....33....9M
Mlr1993b Obs. et Travaux 33, 9, 1993
Mlr1997 Ma - Muller, P. 1997A&AS..126..273M
Mlr1997 A&AS 126, 273, 1997
Mlr2006 Ma - Muller, P. (article by P. Durand & C. Pinlou) 2006O&T....64...16D
Mlr2006 Obs. et Travaux 64, 16, 2006
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19490+7715 MLR 228 1984 5 207 0.2 9.80 10.40 A2 194857.85+771514.5
19490+7715 MLR 228 2010 6 266 0.3 9.80 10.40 A2 194857.85+771514.5

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

 
 
WDS 19490+7715 MLR 228 (HD 188926) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19490+7715 MLR 228 (HD 188926) : MEASURES
 
 
No records found.

 
 
WDS 19490+7715 (HD 188926) : VIRTUAL EYEPIECE
 
 

19490+7715 MLR 228A mag 9.8 Sp A2 19490+7715 MLR 228B sep 0.1 P.A. 251.60 mag 10.4 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 19490+7715 (HD 188926) : ALADIN DSS IMAGE @ 19h 48m 57.85s +77° 15' 14.5"
 
 
 
 
WDS 19490+7715 MLR 228 (HD 188926) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19490+7715 MLR 228 distance=0' 19486+7714 TDT1773 distance=2' 19439+7732 LOC 420 distance=24' 20006+7709 LOC 434 distance=40' 19370+7725 MLR 223 distance=41' 19554+7754 LOC 421 distance=44' 19510+7631 LDS1919 distance=46' 19367+7740 SLW1224 distance=48' 19392+7634 STF2592 distance=54' 19591+7630 HU 956AB distance=57' 19591+7630 HU 956AC distance=57' 19421+7809 LOC 422 distance=58' 19391+7625 MLR 224 distance=61' 19399+7623 MLR 225 distance=61' 20077+7718 OL 122 distance=63' 20089+7715 LDS1928AB distance=67' 20066+7643 TDT1986 distance=68' 19515+7607 LDS1920 distance=69' 19335+7631 UC 3975 distance=69' 20062+7756 LOC 435 distance=69' 20066+7639 SKF2804 distance=70' 20089+7743 STF2675AB distance=71' 20089+7743 STF2675AC distance=71' 19430+7606 LOC 418 distance=73' 19295+7816 GUI 23DE distance=86' 19295+7816 STF2571AB distance=87' 19295+7816 GUI 23AC distance=87' 19295+7816 GUI 23AD distance=87' 19398+7553 LDS1913 distance=89' 19351+7847 LDS1912 distance=100' 19443+7538 LDS1915 distance=100' 19510+7524 STF2617 distance=112' 19329+7520 HDS2776 distance=129' 19320+7917 LOC 408 distance=133' 19560+7927 STF2647 distance=134' 19540+7501 LDS1922 distance=135' 19310+7919 LOC 407 distance=135' 19443+7453 LDS1914 distance=143' 19348+7501 STF2575 distance=144' 19440+7941 LOC 423 distance=147' 19593+7941 TDT1902 distance=149' 19440+7952 WIS 335 distance=158' 19589+8000 LOC 424 distance=168' 19484+7421 HDS2816 distance=175' 19547+8010 LOC 426 distance=176' 19352+7423 MLR 222AB distance=180' 19352+7423 MLR 222AC distance=180' 19352+7423 MLR 222AD distance=180' 19579+7415 A 1195 distance=184' 19493+7409 MLR 227 distance=187' 19562+8028 KPP4178 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 19490+7715 MLR 228 266 0.3
Show 19486+7714 TDT1773 153 0.7 2
Show 19439+7732 LOC 420 7 7.9 24
Show 20006+7709 LOC 434 176 2.1 40
Show 19370+7725 MLR 223 233 0.6 41
Show 19554+7754 LOC 421 290 3.5 44
Show 19510+7631 LDS1919 54 15.4 46
Show 19367+7740 SLW1224 51 97.5 48
Show 19392+7634 STF2592 297 0.8 54
Show 19591+7630 HU 956 AB 88 0.9 57
Show 19591+7630 HU 956 AC 132 138.9 57
Show 19421+7809 LOC 422 203 1.3 58
Show 19391+7625 MLR 224 288 0.2 61
Show 19399+7623 MLR 225 246 0.3 61
Show 20077+7718 OL 122 203 2.5 63
Show 20089+7715 LDS1928 AB 166 5.4 67
Show 20066+7643 TDT1986 138 0.7 68
Show 19515+7607 LDS1920 88 11.4 69
Show 19335+7631 UC 3975 95 14.9 69
Show 20062+7756 LOC 435 260 1.0 69
Show 20066+7639 SKF2804 345 19.0 70
Show 20089+7743 STF2675 AB 120 7.3 71
Show 20089+7743 STF2675 AC 334 170.2 71
Show 19430+7606 LOC 418 239 11.5 73
Show 19295+7816 GUI 23 DE 32 35.5 86
Show 19295+7816 STF2571 AB 19 11.4 87
Show 19295+7816 GUI 23 AC 132 50.1 87
Show 19295+7816 GUI 23 AD 54 201.4 87
Show 19398+7553 LDS1913 327 3.1 89
Show 19351+7847 LDS1912 260 29.3 100
Show 19443+7538 LDS1915 125 9.9 100
Show 19510+7524 STF2617 39 27.9 112
Show 19329+7520 HDS2776 92 0.4 129
Show 19320+7917 LOC 408 168 12.8 133
Show 19560+7927 STF2647 258 8.5 134
Show 19540+7501 LDS1922 226 16.0 135
Show 19310+7919 LOC 407 136 2.6 135
Show 19443+7453 LDS1914 49 6.3 143
Show 19348+7501 STF2575 33 7.6 144
Show 19440+7941 LOC 423 321 2.2 147
Show 19593+7941 TDT1902 119 0.6 149
Show 19440+7952 WIS 335 197 998.0 158
Show 19589+8000 LOC 424 204 4.8 168
Show 19484+7421 HDS2816 85 0.2 175
Show 19547+8010 LOC 426 50 1.7 176
Show 19352+7423 MLR 222 AB 197 7.5 180
Show 19352+7423 MLR 222 AC 215 22.6 180
Show 19352+7423 MLR 222 AD 217 42.1 180
Show 19579+7415 A 1195 294 4.0 184
Show 19493+7409 MLR 227 77 0.2 187
Show 19562+8028 KPP4178 181 55.7 195

 
 
WDS 19490+7715 : COMPONENTS
 
 
  A
B pa=251.6°
sep=0.07"
 
 
19490+7715 A
 
 
Componente originario normalizzato AB Name HD 188926 Coord arcsec 2000 194857.85+771514.5 Mag 9.8
Spectral class A2 (white) PmRA 2.00 PmDE 6.0 SAO 9554
Tycho2 4588-00473-1 HD 188926 DM BD+76 758
Tycho2
Tycho2 4588-00473-1 Pflag RAmdeg 297.24106245 DEmdeg 77.25405333
PmRA 2.4 PmDE -2.9 E RAmdeg 9 E DEmdeg 10
E pmRA 1.2 E pmDE 1.2 EpRAm 1990.85 EpDEm 1990.53
Num 8 Q RAmdeg 0.8 Q DEmdeg 0.7 Q pmRA 0.8
Q pmDE 0.7 BTmag 9.513 E BTmag 0.019 VTmag 9.255
E VTmag 0.017 Prox 933 TYC T HIP
CCDM RAdeg 297.24103722 DEdeg 77.25406056 EpRA 1990 1.69
EpDE 1990 1.60 E RAdeg 8.9 E DEdeg 9.9 Posflg
Corr 0.0
SAO
SAO 9554 DelFlag RA1950 PmRA1950 -0.003
DE1950 PmDE1950 -0.003 Vmag 8.9 SpType A2
Double code Source 1 CatNum 557 DM BD+76 758
DMcomp BDsup HD 188926 M HD 0
GC RA1950rad 5.19559996 DE1950rad 1.34609811 PmRA2000 -0.0021
PmDE2000 -0.006
CCDM
Ccdm 19490+7715 RComp Comp A Note1
Note2 Discov num DRAs -2.28 DDEs 14.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.3 Sp A2 PmNote *
PmRA 3 PmDE -7 Dm number +76 758 Cat1 BD
Name2 +77 557 Cat2 AGK2/3 HD 188926 M HD
ADS BDS M ADS BDS N IDS IDS 19525N7700A
HIC
 
 
19490+7715 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 194857.83+771514.5 Mag 10.4 Calc delta mag 0.6
Calc coord yes
CCDM
Ccdm 19490+7715 RComp Comp B Note1
Note2 Discov num MLR 228 DRAs DDEs
R dRAs Year 1971 Theta 226 Rho 0.2
Obs 1 Vmag 9.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 19525N7700B
HIC