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Doubles in session


Current system
21442+2942
MLB 493


Nearby doubles
18' : 21455+2948
DAM 237

19' : 21430+2951
KPP 498

21' : 21458+2945
DAM 236

25' : 21458+2954
TDT3146

25' : 21457+2957
TDT3145

31' : 21452+2914
UC 4550

31' : 21420+2951
MLB 720

34' : 21420+2924
MLB 539

37' : 21429+3014
TDT3119

39' : 21470+2930
GRV 503

42' : 21412+2955
GRV 491

43' : 21473+2932
STJ 58

45' : 21416+2911
GRV 493

46' : 21451+3026
TDT3136

47' : 21410+2920
STT 448

50' : 21469+2907
CVR 919

51' : 21418+2901
MLB 492

53' : 21461+2855
BRT 58

57' : 21441+2845
STF2822AB

58' : 21401+2928
BRT 57

63' : 21474+2855
AG 420

67' : 21395+3009
A 772

75' : 21412+3043
J 3143

76' : 21384+2953
MLB 491

78' : 21444+2824
KPP3373

79' : 21383+2958
HJ 1670



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.

21442+2942 MLB 493

 
 
21h 44m 10.69s +29° 41' 31.7" P.A. 330.00 sep 8.6 mag 10.38,12.40
 
 
Coord 2000 21442+2942 Discov num MLB 493 Comp Coord arcsec 2000 21 44 10.69 +29 41 31.7
Date first 1926 Date last 2015 Obs 8
Pa first 352 Pa last 329.5 P.A. Now (θ) 329.5°
Sep first 7.9 Sep last 8.556 Sep. Now (ρ) 8.556"
Mag pri 10.38 Mag sec 12.40 delta mag (ΔM) 2.02 Spectral class
Pri motion ra -006 Sec motion ra -042
Pri motion dec +001 Sec motion dec +000
Notes
rPM=0.857
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2201-01761-1 Gaia DR2 1801429203727263872
 
 
WDS 21442+2942 MLB 493 : 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
21442+2942 MLB 493 1999 2 332 8.4 10.38 10.90 D 214410.69+294131.7
21442+2942 MLB 493 2010 3 330 8.6 10.38 12.40 D 214410.69+294131.7
21442+2942 MLB 493 2015 5 330 8.6 10.38 12.40 214410.69+294131.7

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

 
 
WDS 21442+2942 MLB 493 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21442+2942 MLB 493 : MEASURES
 
 
No records found.

 
 
WDS 21442+2942 : VIRTUAL EYEPIECE
 
 

21442+2942 MLB 493A mag 10.38 21442+2942 MLB 493B sep 8.3 P.A. 332.90 mag 12.4 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 21442+2942 : ALADIN DSS IMAGE @ 21h 44m 10.69s +29° 41' 31.7"
 
 
 
 
WDS 21442+2942 MLB 493 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21442+2942 MLB 493 distance=0' 21455+2948 DAM 237 distance=18' 21430+2951 KPP 498 distance=19' 21458+2945 DAM 236 distance=21' 21458+2954 TDT3146 distance=25' 21457+2957 TDT3145 distance=25' 21452+2914 UC 4550 distance=31' 21420+2951 MLB 720 distance=31' 21420+2924 MLB 539 distance=34' 21429+3014 TDT3119 distance=37' 21422+3008 MLB 575BC distance=38' 21422+3008 MLB 575AC distance=38' 21470+2930 GRV 503 distance=39' 21412+2955 GRV 491 distance=42' 21473+2932 STJ 58 distance=43' 21416+2911 GRV 493 distance=45' 21451+3026 TDT3136 distance=46' 21410+2920 STT 448 distance=47' 21469+2907 CVR 919 distance=50' 21418+2901 MLB 492 distance=51' 21461+2855 BRT 58 distance=53' 21441+2845 ES 521DE distance=55' 21441+2845 FYM 25DG distance=55' 21441+2845 STF2822BD distance=57' 21441+2845 STF2822AB distance=57' 21441+2845 STF2822AC distance=57' 21441+2845 STF2822AD distance=57' 21441+2845 FYM 25AF distance=57' 21441+2845 FYM 25AG distance=57' 21401+2928 BRT 57 distance=58' 21474+2855 AG 420 distance=63' 21395+3009 A 772 distance=67' 21412+3043 J 3143 distance=75' 21384+2953 MLB 491 distance=76' 21444+2824 KPP3373 distance=78' 21383+2958 HJ 1670 distance=79' 21474+2834 A 300AB distance=80' 21474+2834 A 300AC distance=80' 21474+2834 A 300AD distance=80' 21454+2819 J 3145 distance=83' 21422+3100 OSO 154AB distance=83' 21422+3100 OSO 154AC distance=83' 21422+3100 OSO 154AD distance=83' 21422+3100 OSO 154AE distance=83' 21462+2817 MLB 540AB distance=88' 21462+2817 MLB 540AC distance=88' 21462+2817 ABH 152AD distance=88' 21462+2817 ABH 152AE distance=88' 21407+3056 GRV 490 distance=88' 21494+3045 STF2829 distance=93' 21455+3113 TDT3141 distance=93' 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 21442+2942 MLB 493 330 8.6
Show 21455+2948 DAM 237 233 6.3 18
Show 21430+2951 KPP 498 58 3.9 19
Show 21458+2945 DAM 236 143 5.9 21
Show 21458+2954 TDT3146 359 2.5 25
Show 21457+2957 TDT3145 250 2.2 25
Show 21452+2914 UC 4550 15 42.5 31
Show 21420+2951 MLB 720 140 7.2 31
Show 21420+2924 MLB 539 171 4.8 34
Show 21429+3014 TDT3119 157 2.7 37
Show 21422+3008 MLB 575 BC 108 2.7 38
Show 21422+3008 MLB 575 AC 133 17.4 38
Show 21470+2930 GRV 503 331 20.4 39
Show 21412+2955 GRV 491 21 31.4 42
Show 21473+2932 STJ 58 193 1.8 43
Show 21416+2911 GRV 493 184 44.7 45
Show 21451+3026 TDT3136 0.8 46
Show 21410+2920 STT 448 31 0.1 47
Show 21469+2907 CVR 919 201 23.5 50
Show 21418+2901 MLB 492 114 7.0 51
Show 21461+2855 BRT 58 165 4.4 53
Show 21441+2845 ES 521 DE 286 17.5 55
Show 21441+2845 FYM 25 DG 164 89.6 55
Show 21441+2845 STF2822 BD 45 196.7 57
Show 21441+2845 STF2822 AB 325 1.6 57
Show 21441+2845 STF2822 AC 292 76.6 57
Show 21441+2845 STF2822 AD 43 197.0 57
Show 21441+2845 FYM 25 AF 72 111.5 57
Show 21441+2845 FYM 25 AG 73 168.1 57
Show 21401+2928 BRT 57 137 5.0 58
Show 21474+2855 AG 420 145 7.5 63
Show 21395+3009 A 772 112 0.1 67
Show 21412+3043 J 3143 262 6.6 75
Show 21384+2953 MLB 491 34 4.8 76
Show 21444+2824 KPP3373 242 2.1 78
Show 21383+2958 HJ 1670 78 11.7 79
Show 21474+2834 A 300 AB 252 2.3 80
Show 21474+2834 A 300 AC 29 7.5 80
Show 21474+2834 A 300 AD 170 8.4 80
Show 21454+2819 J 3145 112 5.4 83
Show 21422+3100 OSO 154 AB 25 15.3 83
Show 21422+3100 OSO 154 AC 239 15.8 83
Show 21422+3100 OSO 154 AD 166 16.4 83
Show 21422+3100 OSO 154 AE 108 19.6 83
Show 21462+2817 MLB 540 AB 256 4.1 88
Show 21462+2817 MLB 540 AC 322 8.7 88
Show 21462+2817 ABH 152 AD 68 41.8 88
Show 21462+2817 ABH 152 AE 96 80.1 88
Show 21407+3056 GRV 490 328 31.7 88
Show 21494+3045 STF2829 15 17.1 93
Show 21455+3113 TDT3141 358 2.5 93

 
 
WDS 21442+2942 : COMPONENTS
 
 
  A
B pa=332.9°
sep=8.28"
 
 
21442+2942 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 214410.69+294131.7 Mag 10.38 PmRA -6.00
PmDE 1.0 Tycho2 2201-01761-1
Tycho2
Tycho2 2201-01761-1 Pflag RAmdeg 326.04455125 DEmdeg 29.69216075
PmRA -6.5 PmDE 4.6 E RAmdeg 26 E DEmdeg 27
E pmRA 2.2 E pmDE 2.2 EpRAm 1990.20 EpDEm 1990.24
Num 3 Q RAmdeg 0.8 Q DEmdeg 0.6 Q pmRA 0.8
Q pmDE 0.6 BTmag 11.998 E BTmag 0.083 VTmag 10.382
E VTmag 0.031 Prox 999 TYC T HIP
CCDM RAdeg 326.04456889 DEdeg 29.69215028 EpRA 1990 1.60
EpDE 1990 1.81 E RAdeg 25.5 E DEdeg 27.4 Posflg
Corr 0.0
 
 
21442+2942 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 214410.40+294139.1 Mag 12.4 PmRA -42.00
PmDE 0.0 Calc delta mag 2.02 Calc coord yes