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Doubles in session


Current system
20273+2820
MLB 774 BC


Nearby doubles
10' : 20281+2819
MLB 662

15' : 20266+2831
TDT2276

17' : 20276+2803
AG 405

18' : 20264+2832
TDT2269

18' : 20268+2804
A 393

25' : 20284+2800
TDT2311

36' : 20297+2837
MLB1088

39' : 20290+2852
TDT2317

40' : 20266+2858
TDT2275

42' : 20270+2902
TDT2283

43' : 20280+2739
BRT 48

43' : 20241+2823
AG 404

43' : 20282+2901
ES 504AB

44' : 20244+2802
HDS2918

46' : 20307+2826
GRV 347

46' : 20275+2735
BVD 164

49' : 20288+2735
TDS1076

50' : 20269+2731
RAO 432

53' : 20261+2910
MLB 479

55' : 20284+2728
COU 725

55' : 20247+2739
MLB 707

55' : 20292+2731
HJ 1519

56' : 20241+2746
TDT2238

58' : 20258+2726
TDT2265

59' : 20242+2900
BU 443AB

59' : 20294+2729
KPP1957



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.

20273+2820 MLB 774 BC

 
 
20h 27m 21.58s +28° 20' 04.2" P.A. 279.00 sep 4.3 mag 13.70,13.70
 
 
Coord 2000 20273+2820 Discov num MLB 774 Comp BC Coord arcsec 2000 20 27 21.58 +28 20 04.2
Date first 1932 Date last 2015 Obs 4
Pa first 273 Pa last 279.4 P.A. Now (θ) 279.4°
Sep first 4.1 Sep last 4.318 Sep. Now (ρ) 4.318"
Mag pri 13.70 Mag sec 13.70 delta mag (ΔM) 0 Spectral class
Pri motion ra +086 Sec motion ra -066
Pri motion dec -022 Sec motion dec +001
Notes
rPM=1.732
This double is not physical.
 
 
20273+2820 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 88699 20 27 19 +28 19 44 MLB 774 AB 2015 4 63 44.1 8.83 13.70 4.87
Show 20 27 22 +28 20 04 MLB 774 BC 2015 4 279 4.3 13.70 13.70 0.00 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Gaia DR2 1860105054077255168
 
 
WDS 20273+2820 MLB 774 BC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Mlb1918 Mb - Milburn, W. (Espin, T.E.) 1918MNRAS..78..189E
Mlb1918 MNRAS 78, 189, 1918 (MLB 1 - 35; measures by Espin)
Mlb1919 Mb - Milburn, W. (Espin, T.E.) 1919MNRAS..79..211E
Mlb1919 MNRAS 79, 211, 1919 (MLB 36 - 106; measures by Espin)
Mlb1920 Mb - Milburn, W. 1920MNRAS..80..329M
Mlb1920 MNRAS 80, 329, 1920 (MLB 107 - 149)
Mlb1921 Mb - Milburn, W. 1921MNRAS..81..232E
Mlb1921 MNRAS 81, 232, 1921 (MLB 150 - 182)
Mlb1922 Mb j Milburn, W. (Espin, T.E.) 1922MNRAS..82..187E
Mlb1922 MNRAS 82, 187, 1922 (MLB 183 - 241; measures by Espin)
Mlb1923 Mb - Milburn, W. 1923MNRAS..83..154E
Mlb1923 MNRAS 83, 154, 1923 (MLB 242 - 275)
Mlb1924 Mb - Milburn, W. 1924MNRAS..84..162E
Mlb1924 MNRAS 84, 162, 1924 (MLB 276 - 322)
Mlb1925 Mb j Milburn, W. 1925MNRAS..85..276E
Mlb1925 MNRAS 85, 276, 1925 (MLB 323 - 376)
Mlb1926 Mb - Milburn, W. 1926MNRAS..86..131E
Mlb1926 MNRAS 86, 131, 1926 (MLB 377 - 440)
Mlb1927 Mb j Milburn, W. 1927MNRAS..87..215E
Mlb1927 +Po MNRAS 87, 215, 1927 (MLB 441 - 510)
Mlb1928 Mb - Milburn, W. 1928MNRAS..88..185E
Mlb1928 MNRAS 88, 185, 1928 (MLB 511 - 551)
Mlb1929 Mb - Milburn, W. 1929MNRAS..89..268E
Mlb1929 MNRAS 89, 268, 1929 (MLB 552 - 591)
Mlb1930 Mb - Milburn, W. 1930MNRAS..90..317E
Mlb1930 MNRAS 90, 317, 1930 (MLB 592 - 630)
Mlb1931 Mb j Milburn, W. 1931MNRAS..91..294E
Mlb1931 MNRAS 91, 294, 1931 (MLB 631 - 673)
Mlb1932 Ma - Milburn, W. 1932MNRAS..92..214E
Mlb1932 +Mb MNRAS 92, 214, 1932 (MLB 674 - 732)
Mlb1932B Ma - Milburn, W. 1932QB821.A43......
Mlb1932B cited by ADS (Aitken Double Star Cat., 1932)
Mlb1933 Ma j Milburn, W. 1933MNRAS..93..192E
Mlb1933 +Mb MNRAS 93, 192, 1933 (MLB 733 - 806)
Mlb1934 Mb j Milburn, W. 1934MNRAS..94..255M
Mlb1934 MNRAS 94, 255, 1934 (MLB 807 - 912)
Mlb1935 Mb j Milburn, W. 1935MNRAS..95..298M
Mlb1935 MNRAS 95, 298, 1935 (MLB 913 - 969)
Mlb1936 Mb - Milburn, W. 1936MNRAS..96..266M
Mlb1936 MNRAS 96, 266, 1936 (MLB 970 - 997)
Mlb1937 Ma - Milburn, W. 1937MNRAS..97..222M
Mlb1937 +Mb MNRAS 97, 222, 1937 (MLB 998 - 1025)
Mlb1938 Ma - Milburn, W. 1938MNRAS..98..223M
Mlb1938 +Mb MNRAS 98, 223, 1938 (MLB 1026 - 1032)
Mlb1939 Mb - Milburn, W. 1939MNRAS..99..278M
Mlb1939 MNRAS 99, 278, 1939 (MLB 1033 - 1051)
Mlb9999 Mb - Milburn, W. ...................
Mlb9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20273+2820 MLB 774 BC 1997 2 279 4.2 11.20 11.30 D 202721.59+282004.3
20273+2820 MLB 774 BC 2002 3 279 4.2 13.70 13.70 D 202721.58+282004.2
20273+2820 MLB 774 BC 2010 4 280 3.8 13.70 13.70 202721.58+282004.2
20273+2820 MLB 774 BC 2015 4 279 4.3 13.70 13.70 202721.58+282004.2

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

 
 
WDS 20273+2820 MLB 774 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20273+2820 MLB 774 BC : MEASURES
 
 
No records found.

 
 
WDS 20273+2820 : VIRTUAL EYEPIECE
 
 

20273+2820 MLB 774A mag 8.83 Sp B8 20273+2820 MLB 774B sep 43.9 P.A. 62.50 mag 13.7 20273+2820 MLB 774C sep 41.0 P.A. 59.20 mag 13.7 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 20273+2820 : ALADIN DSS IMAGE @ 20h 27m 21.58s +28° 20' 04.2"
 
 
 
 
WDS 20273+2820 MLB 774 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20273+2820 MLB 774BC distance=0' 20273+2820 MLB 774AB distance=1' 20281+2819 MLB 662 distance=10' 20266+2831 TDT2276 distance=15' 20276+2803 AG 405 distance=17' 20264+2832 TDT2269 distance=18' 20268+2804 A 393 distance=18' 20284+2800 TDT2311 distance=25' 20297+2837 MLB1088 distance=36' 20290+2852 TDT2317 distance=39' 20266+2858 TDT2275 distance=40' 20270+2902 TDT2283 distance=42' 20280+2739 BRT 48 distance=43' 20241+2823 AG 404 distance=43' 20282+2901 TDT2308Aa,Ab distance=43' 20282+2901 ES 504AB distance=43' 20244+2802 HDS2918 distance=44' 20307+2826 GRV 347 distance=46' 20275+2735 BVD 164 distance=46' 20288+2735 TDS1076 distance=49' 20269+2731 RAO 432 distance=50' 20261+2910 MLB 479 distance=53' 20284+2728 COU 725 distance=55' 20247+2739 MLB 707 distance=55' 20292+2731 HJ 1519 distance=55' 20241+2746 TDT2238 distance=56' 20258+2726 TDT2265 distance=58' 20242+2900 BU 443AB distance=59' 20242+2900 BU 443AC distance=59' 20242+2900 BU 443AD distance=59' 20294+2729 KPP1957 distance=59' 20254+2727 J 509 distance=60' 20312+2855 ES 506 distance=62' 20256+2723 J 2310BC distance=63' 20256+2723 J 2310AB distance=63' 20256+2723 J 2310AC distance=63' 20227+2837 COU1169AB distance=65' 20227+2837 COU1169AC distance=65' 20287+2924 MLB 532 distance=66' 20223+2826 TDT2214 distance=67' 20244+2923 HO 457AB distance=75' 20244+2923 HO 457AC distance=75' 20333+2824 NSN 734 distance=79' 20331+2852 ES 507DS distance=81' 20331+2852 ES 507AB distance=82' 20331+2852 ES 507AC distance=82' 20331+2852 ES 507AD distance=82' 20331+2852 FYM 137AE distance=82' 20331+2852 FYM 137AF distance=82' 20331+2852 FYM 137AG distance=82' 20222+2736 MLB 611 distance=82' 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 20273+2820 MLB 774 BC 279 4.3
Show 20273+2820 MLB 774 AB 63 44.1 1
Show 20281+2819 MLB 662 42 3.4 10
Show 20266+2831 TDT2276 316 0.7 15
Show 20276+2803 AG 405 70 23.3 17
Show 20264+2832 TDT2269 332 0.4 18
Show 20268+2804 A 393 217 0.5 18
Show 20284+2800 TDT2311 97 1.5 25
Show 20297+2837 MLB1088 334 9.5 36
Show 20290+2852 TDT2317 323 0.5 39
Show 20266+2858 TDT2275 87 0.4 40
Show 20270+2902 TDT2283 355 0.4 42
Show 20280+2739 BRT 48 265 4.2 43
Show 20241+2823 AG 404 247 34.4 43
Show 20282+2901 TDT2308 Aa,Ab 343 0.6 43
Show 20282+2901 ES 504 AB 87 5.9 43
Show 20244+2802 HDS2918 228 0.2 44
Show 20307+2826 GRV 347 8 22.4 46
Show 20275+2735 BVD 164 350 2.9 46
Show 20288+2735 TDS1076 293 1.0 49
Show 20269+2731 RAO 432 336 0.2 50
Show 20261+2910 MLB 479 141 6.4 53
Show 20284+2728 COU 725 59 0.5 55
Show 20247+2739 MLB 707 358 3.5 55
Show 20292+2731 HJ 1519 234 15.6 55
Show 20241+2746 TDT2238 205 0.4 56
Show 20258+2726 TDT2265 264 2.5 58
Show 20242+2900 BU 443 AB 151 16.7 59
Show 20242+2900 BU 443 AC 97 33.6 59
Show 20242+2900 BU 443 AD 139 31.6 59
Show 20294+2729 KPP1957 36 15.5 59
Show 20254+2727 J 509 262 4.0 60
Show 20312+2855 ES 506 304 5.9 62
Show 20256+2723 J 2310 BC 357 5.3 63
Show 20256+2723 J 2310 AB 323 33.5 63
Show 20256+2723 J 2310 AC 328 38.0 63
Show 20227+2837 COU1169 AB 59 0.3 65
Show 20227+2837 COU1169 AC 175 1.7 65
Show 20287+2924 MLB 532 351 8.9 66
Show 20223+2826 TDT2214 8 1.0 67
Show 20244+2923 HO 457 AB 61 2.0 75
Show 20244+2923 HO 457 AC 268 28.0 75
Show 20333+2824 NSN 734 94 10.0 79
Show 20331+2852 ES 507 DS 146 16.0 81
Show 20331+2852 ES 507 AB 295 7.1 82
Show 20331+2852 ES 507 AC 346 36.4 82
Show 20331+2852 ES 507 AD 224 36.8 82
Show 20331+2852 FYM 137 AE 101 42.6 82
Show 20331+2852 FYM 137 AF 176 23.3 82
Show 20331+2852 FYM 137 AG 299 32.9 82
Show 20222+2736 MLB 611 206 9.9 82

 
 
WDS 20273+2820 : COMPONENTS
 
 
  A B
B pa=62.5°
sep=43.92"
 
C pa=59.2°
sep=40.99"
pa=280.7°
sep=3.82"
 
 
20273+2820 A
 
 
Coord arcsec 2000 202718.63+281943.9 Mag 8.83 Spectral class B8 (blue-white) PmRA -4.00
PmDE -7.0 SAO 88699 Tycho2 2168-00778-1 HD 334415
DM BD+27 3738
Tycho2
Tycho2 2168-00778-1 Pflag RAmdeg 306.82763075 DEmdeg 28.32887689
PmRA -4.2 PmDE -7.0 E RAmdeg 5 E DEmdeg 5
E pmRA 1.3 E pmDE 1.1 EpRAm 1991.50 EpDEm 1991.40
Num 10 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.1 BTmag 8.907 E BTmag 0.015 VTmag 8.831
E VTmag 0.012 Prox 999 TYC T HIP
CCDM RAdeg 306.82764167 DEdeg 28.32889306 EpRA 1990 1.80
EpDE 1990 1.75 E RAdeg 5.1 E DEdeg 5.4 Posflg
Corr 0.3
SAO
SAO 88699 DelFlag RA1950 PmRA1950 -0.0003
DE1950 PmDE1950 0.003 Vmag 8.5 SpType B8
Double code Source 34 CatNum 11331 DM BD+27 3738
DMcomp BDsup HD 334415 M HD 0
GC RA1950rad 5.34606627 DE1950rad 0.49154006 PmRA2000 -0.0002
PmDE2000 0
CCDM
Ccdm 20273+2820 RComp Comp A Note1
Note2 Discov num DRAs 0.59 DDEs -15.4
R dRAs 65 Year Theta Rho
Obs 3 Vmag 8.7 Sp B8 PmNote *
PmRA -15 PmDE -6 Dm number +27 3738 Cat1 BD
Name2 +28 2253 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS 20221N2800A
HIC
 
 
20273+2820 B
 
 
Coord arcsec 2000 202721.58+282004.2 Coord calc 202721.58+282004.2 Mag 13.7 PmRA 86.00
PmDE -22.0 Calc delta mag 4.87
CCDM
Ccdm 20273+2820 RComp Comp B Note1
Note2 Discov num MLB 774 DRAs 3.46 DDEs 4.4
R dRAs 65 Year 1932 Theta 064 Rho 39.0
Obs 1 Vmag 11.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20221N2800B
HIC
 
 
20273+2820 C
 
 
Coord arcsec 2000 202721.30+282004.9 Mag 13.7 PmRA -66.00 PmDE 1.0
Calc delta mag 4.87 Calc coord yes
CCDM
Ccdm 20273+2820 RComp B Comp C Note1
Note2 Discov num MLB 774 DRAs DDEs
R dRAs Year 1932 Theta 273 Rho 4.1
Obs 1 Vmag 11.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20221N2800C
HIC