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20277+8257
MLR 234


Nearby doubles
14' : 20345+8254
MLR 235

17' : 20200+8306
LOC 454

25' : 20178+8314
LOC 442

28' : 20421+8251
LOC 469

38' : 20228+8334
TDT2220

40' : 20406+8227
TDT2464

44' : 20152+8335
UC 4127

53' : 20077+8336
LOC 443

53' : 20319+8350
LOC 456

62' : 20449+8206
LOC 467

65' : 20167+8156
LOC 441

66' : 20255+8152
LOC 452

93' : 20282+8125
BUP 211AB

97' : 20108+8127
LOC 440

99' : 20084+8127
HU 957

107' : 20465+8118
KPP4213

109' : 20472+8117
TDT2537

110' : 20094+8114
LOC 439

112' : 20165+8109
STT 526

113' : 20295+8105
STT 593AB

119' : 20454+8105
LDS1938

121' : 20079+8454
UC 4092

132' : 20400+8048
LDS1937

134' : 20086+8507
WSI 109AB

139' : 20415+8042
LOC 466

146' : 20214+8523
LOC 457



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.

20277+8257 MLR 234

 
 
20h 27m 41.01s +82° 57' 26.6" P.A. 94.00 sep 0.6 mag 10.03,10.54 Sp F5 dist. 348.43 pc (1136.58 l.y.)
 
 
Coord 2000 20277+8257 Discov num MLR 234 Comp Coord arcsec 2000 20 27 41.01 +82 57 26.6
Date first 1971 Date last 2004 Obs 13
Pa first 90 Pa last 94.3 P.A. Now (θ) 94.3°
Sep first 0.3 Sep last 0.62 Sep. Now (ρ) 0.62"
Mag pri 10.03 Mag sec 10.54 delta mag (ΔM) 0.51 Spectral class F5 (yellow-white)
Pri motion ra +015 Sec motion ra +015
Pri motion dec +025 Sec motion dec +025
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco HIP 100920 Tycho2 4649-03063-1 Gaia DR2 2301912048986345472
BD BD+82 618 Distance 348.43 Distance ly 1136.58
 
 
WDS 20277+8257 MLR 234 : 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
20277+8257 MLR 234 1997 12 91 0.6 10.03 10.54 F5 D 202741.01+825726.6
20277+8257 MLR 234 2004 13 94 0.6 10.03 10.54 F5 D 202741.01+825726.6

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

 
 
WDS 20277+8257 MLR 234 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20277+8257 MLR 234 : MEASURES
 
 
No records found.

 
 
WDS 20277+8257 : VIRTUAL EYEPIECE
 
 

20277+8257 MLR 234A mag 10.03 Sp F5 20277+8257 MLR 234B sep 0.1 P.A. 121.50 mag 10.54 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20277+8257 : ALADIN DSS IMAGE @ 20h 27m 41.01s +82° 57' 26.6"
 
 
 
 
WDS 20277+8257 MLR 234 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20277+8257 MLR 234 distance=0' 20345+8254 MLR 235 distance=14' 20200+8306 LOC 454 distance=17' 20178+8314 LOC 442 distance=25' 20421+8251 LOC 469 distance=28' 20228+8334 TDT2220 distance=38' 20406+8227 TDT2464 distance=40' 20152+8335 UC 4127 distance=44' 20077+8336 LOC 443 distance=53' 20319+8350 LOC 456 distance=53' 20449+8206 LOC 467 distance=62' 20167+8156 LOC 441 distance=65' 20255+8152 LOC 452 distance=66' 20282+8125 BUP 211AB distance=93' 20282+8125 STH 7AC distance=93' 20108+8127 LOC 440 distance=97' 20084+8127 HU 957 distance=99' 20465+8118 KPP4213 distance=107' 20472+8117 TDT2537 distance=109' 20295+8105 BUP 212BC distance=110' 20094+8114 LOC 439 distance=110' 20165+8109 STT 526 distance=112' 20295+8105 STT 593AB distance=113' 20454+8105 LDS1938 distance=119' 20079+8454 UC 4092 distance=121' 20400+8048 LDS1937 distance=132' 20086+8507 WSI 109AB distance=134' 20086+8507 RAO 21AC distance=134' 20415+8042 LOC 466 distance=139' 20214+8523 LOC 457 distance=146' 20144+8032 STF2694 distance=149' 20397+8030 HDS2946 distance=150' 20376+8551 LOC 458 distance=175' 20372+8001 LDS1936 distance=178' 20250+8559 LDS1934 distance=183' 20248+8636 LDS1935 distance=219' 20423+7915 SKF1247 distance=225' 20236+8647 LOC 459 distance=230' 20460+7907 MLR 237AB distance=234' 20119+7847 LOC 437 distance=254' 20195+7836 WFC 232 distance=263' 20277+7828 KPP4200 distance=270' 20156+7826 LOC 436 distance=273' 20291+7819 KPP1433 distance=279' 20099+8756 LOC 447 distance=299' 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 20277+8257 MLR 234 94 0.6
Show 20345+8254 MLR 235 165 0.8 14
Show 20200+8306 LOC 454 145 7.8 17
Show 20178+8314 LOC 442 74 1.5 25
Show 20421+8251 LOC 469 123 1.6 28
Show 20228+8334 TDT2220 59 0.4 38
Show 20406+8227 TDT2464 181 1.3 40
Show 20152+8335 UC 4127 43 42.7 44
Show 20077+8336 LOC 443 8 1.4 53
Show 20319+8350 LOC 456 266 1.1 53
Show 20449+8206 LOC 467 231 22.7 62
Show 20167+8156 LOC 441 139 1.0 65
Show 20255+8152 LOC 452 150 1.1 66
Show 20282+8125 BUP 211 AB 11 109.5 93
Show 20282+8125 STH 7 AC 282 196.6 93
Show 20108+8127 LOC 440 158 1.4 97
Show 20084+8127 HU 957 144 4.9 99
Show 20465+8118 KPP4213 148 5.2 107
Show 20472+8117 TDT2537 209 1.0 109
Show 20295+8105 BUP 212 BC 293 100.4 110
Show 20094+8114 LOC 439 78 3.9 110
Show 20165+8109 STT 526 167 1.3 112
Show 20295+8105 STT 593 AB 36 214.4 113
Show 20454+8105 LDS1938 321 18.2 119
Show 20079+8454 UC 4092 163 45.7 121
Show 20400+8048 LDS1937 312 6.7 132
Show 20086+8507 WSI 109 AB 175 0.1 134
Show 20086+8507 RAO 21 AC 71 1.2 134
Show 20415+8042 LOC 466 26 1.2 139
Show 20214+8523 LOC 457 271 1.9 146
Show 20144+8032 STF2694 345 4.3 149
Show 20397+8030 HDS2946 143 0.2 150
Show 20376+8551 LOC 458 163 3.6 175
Show 20372+8001 LDS1936 313 40.8 178
Show 20250+8559 LDS1934 10 64.2 183
Show 20248+8636 LDS1935 316 14.7 219
Show 20423+7915 SKF1247 338 17.3 225
Show 20236+8647 LOC 459 21 3.3 230
Show 20460+7907 MLR 237 AB 118 3.1 234
Show 20119+7847 LOC 437 230 34.9 254
Show 20195+7836 WFC 232 143 3.8 263
Show 20277+7828 KPP4200 166 1.7 270
Show 20156+7826 LOC 436 217 9.5 273
Show 20291+7819 KPP1433 234 10.8 279
Show 20099+8756 LOC 447 307 7.2 299

 
 
WDS 20277+8257 : COMPONENTS
 
 
  A
B pa=121.5°
sep=0.09"
 
 
20277+8257 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202741.01+825726.6 Mag 10.03 Spectral class F5 (yellow-white)
PmRA 15.00 PmDE 25.0 HIP 100920 Tycho2 4649-03063-1
BD BD+82 618
Tycho2
Tycho2 4649-03063-1 Pflag RAmdeg 306.92135636 DEmdeg 82.95737027
PmRA 15.3 PmDE 25.4 E RAmdeg 14 E DEmdeg 15
E pmRA 1.5 E pmDE 1.5 EpRAm 1989.98 EpDEm 1989.91
Num 7 Q RAmdeg 0.7 Q DEmdeg 1.1 Q pmRA 0.7
Q pmDE 1.1 BTmag 10.222 E BTmag 0.029 VTmag 9.608
E VTmag 0.023 Prox 999 TYC T HIP 100920
CCDM AB RAdeg 306.92106250 DEdeg 82.95731306 EpRA 1990 1.63
EpDE 1990 1.68 E RAdeg 15.3 E DEdeg 15.5 Posflg P
Corr -0.1
Hipparcos
Catalog H HIP 100920 Proxy H RAhms 20 27 40.93
DEdms +82 57 26.3 Vmag 9.49 VarFlag R Vmag H
RAdeg 306.921 DEdeg 82.9573 AstroRef A Plx 3.23
CCDM 20277+8257 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 96 Rho 0.626 HD BD BD+82 618
CD CP Dm number +82 618 VIred 0.76
SpType F5 R SpType Coord arcsec 2000 202740.93+825726.3
Hipparcos 2
HIP 100920 Sn 15 So 3 Nc 2
RArad 5.3567738057 DErad 1.4478783537 Plx 2.87 PmRA 17.93
PmDE 22.8 E RArad 2.71 E DErad 1.46 E Plx 1.91
E pmRA 2.86 E pmDE 1.55 Hpmag 9.5982 E Hpmag 0.0022
SHp 0.022 VA 0 BV 0.505 E BV 0.038
VI 0.58
CCDM
Ccdm 20277+8257 RComp Comp A Note1
Note2 Discov num DRAs -1.02 DDEs 26.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.8 Sp PmNote *
PmRA 9 PmDE 35 Dm number +82 618 Cat1 BD
Name2 +82 598 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS 20364N8237A
HIC 100920
 
 
20277+8257 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202741.05+825726.6 Mag 10.54 PmRA 15.00
PmDE 25.0 Calc delta mag 0.51 Calc coord yes
CCDM
Ccdm 20277+8257 RComp Comp B Note1
Note2 Discov num MLR 234 DRAs DDEs
R dRAs Year 1971 Theta 90 Rho 0.3
Obs 1 Vmag 9.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20364N8237B
HIC 100920