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Current system
21356+2918
GRV 481


Nearby doubles
9' : 21363+2917
BRT 56

25' : 21346+2856
J 2352

41' : 21327+2930
ES 517

46' : 21362+3003
BU 167

52' : 21384+2953
MLB 491

52' : 21331+2958
J 3141AB

53' : 21383+2958
HJ 1670

53' : 21327+2954
HEI 190

54' : 21355+3012
UC 4502

56' : 21401+2928
BRT 57

58' : 21364+3015
MLB 719

59' : 21348+3016
ES 380AB

62' : 21353+3020
MLB 718

65' : 21332+3015
ES 379

67' : 21353+2812
CHR 103

68' : 21390+2826
ES 520

70' : 21410+2920
STT 448

72' : 21395+3009
A 772

78' : 21301+2946
GRV 471

78' : 21342+2804
NSN 66AB

79' : 21416+2911
GRV 493

81' : 21320+2814
TDT3012

82' : 21412+2955
GRV 491

83' : 21418+2901
MLB 492

83' : 21420+2924
MLB 539

84' : 21318+3026
TDT3010



Selections
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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.

21356+2918 GRV 481

 
 
21h 35m 40.22s +29° 18' 34.1" P.A. 184.00 sep 64.0 mag 12.41,14.25
 
 
Coord 2000 21356+2918 Discov num GRV 481 Comp Coord arcsec 2000 21 35 40.22 +29 18 34.1
Date first 1999 Date last 2015 Obs 7
Pa first 184 Pa last 184.1 P.A. Now (θ) 184.1°
Sep first 63.9 Sep last 63.979 Sep. Now (ρ) 63.979"
Mag pri 12.41 Mag sec 14.25 delta mag (ΔM) 1.84 Spectral class
Pri motion ra -007 Sec motion ra -008
Pri motion dec -015 Sec motion dec -016
Notes
rPM=0.079 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1849198895145261696
 
 
WDS 21356+2918 GRV 481 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Grv2004 Eu - Greaves, J. 2004MNRAS.355..585G
Grv2004 MNRAS 355, 585, 2004
Grv2005a Es - Greaves, J. ...................
Grv2005a +C Webb Soc., Double Star Circ. 13, 2005 (GRV 973 - 1147)
Grv2005a (Note: RA for all WDS designations inadvertently truncated to integer minute)
Grv2005b Pa - Greaves, J. ...................
Grv2005b private communication
Grv2005c C - Greaves, J. 2005JDSO....1...41G
Grv2005c JDSO 1, 41, 2005
Grv2006 - Greaves, J. ...................
Grv2006 private communication, 2006
Grv2006 (measures done using LSPM-north, see Vizier On-line Data Catalog I/298;
Grv2006 Lepine & Shara 2005)
Grv2006b Es - Greaves, J. ...................
Grv2006b private Communication, 2006
Grv2006b (Reduction of SDSS data. Calculated position is to J2000, but actual observation
Grv2006b epoch is unknown and proper motion may or may not have been applied.)
Grv2006c Ey - Greaves, J. ...................
Grv2006c private Communication, 2006
Grv2006c (Reduction of SPM3.3 data. Calculated position is to 1991.25, but actual
Grv2006c observation epoch is unknown and proper motion may or may not have been applied.)
Grv2008 Es - Greaves, J. ...................
Grv2008 Webb Soc., Double Star Circ. 16, 2008
Grv2011 C - Greaves, J. ...................
Grv2011 Webb Soc., Double Star Circ. 19, 2011
Grv2011 These carry a discovery designation of SPM and come from the SPM4 Catalog 2011AJ....142...15G
Grv2019a Hg u Greaves, J. 2019JDSO...15...59G
Grv2019a JDSO 15, 59, 2019
Grv2019b Hg u Greaves, J. 2019JDSO...15...77G
Grv2019b JDSO 15, 59, 2019
Grv2019c Hg u Greaves, J. ...................
Grv2019c private communication, 2019 (17 April 2019 email)
Grv2019d Hg - Greaves, J. .
Grv2019d private communication, 2019 (4 Nov 2019 email)
Grv2020a not - Greaves, J. .
Grv2020a private communication, 2020 (14 Mar 2020 email)
Grv2020b Hg j Greaves, J. .
Grv2020b Webb Soc., Double Star Circ. 28, 23, 2020
Grv2020c Hg j Greaves, J. .
Grv2020c Webb Soc., Double Star Circ. 28, 35, 2020
Grv2020d Hg j Greaves, J. .
Grv2020d Webb Soc., Double Star Circ. 28, 39, 2020
Grv2020e Hg u Greaves, J. 2020JDSO...16..317G
Grv2020e JDSO 16, 317, 2020
Grv2020f Hg Greaves, J. 2020JDSO...16..362G
Grv2020f JDSO 16, 362, 2020
Grv2020g Hg - Greaves, J. .
Grv2020g private communication, 2020 (29 Nov 2020 email)
Grv2020h Hg - Greaves, J. .
Grv2020h private communication, 2020 (10 Dec 2020 email)
Grv2020i Hg - Greaves, J. .
Grv2020i private communication, 2020 (12 Dec 2020 email)
Grv2020j Hg - Greaves, J. .
Grv2020j private communication, 2020 (21 Dec 2020 email)
Grv2021a not - Greaves, J. .
Grv2021a private communication, 2021 (18 Feb 2021 email)
Grv2021b not - Greaves, J. .
Grv2021b private communication, 2021 (23 Feb 2021 email)
Grv2021c Hg+ - Greaves, J., Rica Romero, F.M. & Otero, S. 2021JDSO...17..137G
Grv2021c +orb JDSO 17, 137, 2021
Grv2021d Hg - Greaves, J. .
Grv2021d private communication, 2021 (23 Aug 2021 email)
Grv2021e Hg - Greaves, J. .
Grv2021e private communication, 2021 (24 Aug 2021 email)
Grv2022 Hg j Greaves, J. .
Grv2022 Webb Soc., Double Star Circ. 30, 27, 2022
Grv2023a Hg - Greaves, J. .
Grv2023a private communication, 2023 (15 Feb 2023 email)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21356+2918 GRV 481 2000 2 184 63.8 11.80 13.90 D 213540.22+291834.1
21356+2918 GRV 481 2002 3 184 63.8 11.80 13.90 D 213540.22+291834.1
21356+2918 GRV 481 2010 3 184 63.9 12.41 14.25 213540.22+291834.1
21356+2918 GRV 481 2015 4 184 64.0 12.41 14.25 213540.22+291834.1

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

 
 
WDS 21356+2918 GRV 481 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21356+2918 GRV 481 : MEASURES
 
 
No records found.

 
 
WDS 21356+2918 : VIRTUAL EYEPIECE
 
 

21356+2918 GRV 481A mag 12.41 21356+2918 GRV 481B sep 63.9 P.A. 183.60 mag 14.25 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21356+2918 : ALADIN DSS IMAGE @ 21h 35m 40.22s +29° 18' 34.1"
 
 
 
 
WDS 21356+2918 GRV 481 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21356+2918 GRV 481 distance=0' 21363+2917 BRT 56 distance=9' 21346+2856 J 2352 distance=25' 21327+2930 ES 517 distance=41' 21362+3003 BU 167 distance=46' 21384+2953 MLB 491 distance=52' 21331+2958 J 3141AB distance=52' 21331+2958 LOS 5AC distance=52' 21331+2958 LOS 5BC distance=52' 21383+2958 HJ 1670 distance=53' 21327+2954 HEI 190 distance=53' 21355+3012 UC 4502 distance=54' 21401+2928 BRT 57 distance=56' 21364+3015 MLB 719 distance=58' 21348+3016 ES 380CD distance=59' 21348+3016 ES 380AB distance=59' 21348+3016 ES 380AC distance=59' 21353+3020 MLB 718 distance=62' 21332+3015 ES 379 distance=65' 21353+2812 CHR 103 distance=67' 21390+2826 ES 520 distance=68' 21410+2920 STT 448 distance=70' 21395+3009 A 772 distance=72' 21301+2946 GRV 471 distance=78' 21342+2804 NSN 66AB distance=78' 21416+2911 GRV 493 distance=79' 21320+2814 TDT3012 distance=81' 21412+2955 GRV 491 distance=82' 21418+2901 MLB 492 distance=83' 21420+2924 MLB 539 distance=83' 21318+3026 TDT3010 distance=84' 21353+3043 TDT3047 distance=85' 21420+2951 MLB 720 distance=89' 21384+3044 LDS4900 distance=92' 21331+2751 UC 4494 distance=94' 21289+3002 MLB 668 distance=99' 21319+3044 UC 4485 distance=99' 21422+3008 MLB 575AC distance=99' 21422+3008 MLB 575BC distance=99' 21379+2743 HDS3080Aa,Ab distance=101' 21379+2743 MLB1093AB distance=101' 21379+2743 SKF 245AC distance=101' 21430+2951 KPP 498 distance=101' 21358+3101 HJ 939AB distance=103' 21358+3101 STF2808AC distance=103' 21358+3101 HJ 939CD distance=103' 21334+3058 COU 732Aa,Ab distance=104' 21334+3058 KU 132AB distance=104' 21358+3104 HJ 940 distance=106' 21389+3058 TDT3081 distance=108' 21273+2917 TDT2976 distance=110' 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 21356+2918 GRV 481 184 64.0
Show 21363+2917 BRT 56 306 3.2 9
Show 21346+2856 J 2352 247 6.4 25
Show 21327+2930 ES 517 240 2.5 41
Show 21362+3003 BU 167 89 1.7 46
Show 21384+2953 MLB 491 34 4.8 52
Show 21331+2958 J 3141 AB 313 6.8 52
Show 21331+2958 LOS 5 AC 350 6.1 52
Show 21331+2958 LOS 5 BC 70 4.1 52
Show 21383+2958 HJ 1670 78 11.7 53
Show 21327+2954 HEI 190 81 1.8 53
Show 21355+3012 UC 4502 264 46.1 54
Show 21401+2928 BRT 57 137 5.0 56
Show 21364+3015 MLB 719 136 6.0 58
Show 21348+3016 ES 380 CD 312 2.9 59
Show 21348+3016 ES 380 AB 49 16.2 59
Show 21348+3016 ES 380 AC 106 61.5 59
Show 21353+3020 MLB 718 307 8.1 62
Show 21332+3015 ES 379 300 9.0 65
Show 21353+2812 CHR 103 110 0.2 67
Show 21390+2826 ES 520 36 9.3 68
Show 21410+2920 STT 448 31 0.1 70
Show 21395+3009 A 772 112 0.1 72
Show 21301+2946 GRV 471 306 21.0 78
Show 21342+2804 NSN 66 AB 275 4.0 78
Show 21416+2911 GRV 493 184 44.7 79
Show 21320+2814 TDT3012 210 2.1 81
Show 21412+2955 GRV 491 21 31.4 82
Show 21418+2901 MLB 492 114 7.0 83
Show 21420+2924 MLB 539 171 4.8 83
Show 21318+3026 TDT3010 331 0.6 84
Show 21353+3043 TDT3047 19 2.4 85
Show 21420+2951 MLB 720 140 7.2 89
Show 21384+3044 LDS4900 213 17.4 92
Show 21331+2751 UC 4494 264 26.9 94
Show 21289+3002 MLB 668 240 4.8 99
Show 21319+3044 UC 4485 24 25.4 99
Show 21422+3008 MLB 575 AC 133 17.4 99
Show 21422+3008 MLB 575 BC 108 2.7 99
Show 21379+2743 HDS3080 Aa,Ab 109 0.2 101
Show 21379+2743 MLB1093 AB 268 26.7 101
Show 21379+2743 SKF 245 AC 16 3.3 101
Show 21430+2951 KPP 498 58 3.9 101
Show 21358+3101 HJ 939 AB 176 15.6 103
Show 21358+3101 STF2808 AC 286 42.8 103
Show 21358+3101 HJ 939 CD 344 15.1 103
Show 21334+3058 COU 732 Aa,Ab 265 0.5 104
Show 21334+3058 KU 132 AB 256 53.6 104
Show 21358+3104 HJ 940 329 21.0 106
Show 21389+3058 TDT3081 114 0.8 108
Show 21273+2917 TDT2976 275 0.6 110

 
 
WDS 21356+2918 : COMPONENTS
 
 
  A
B pa=183.6°
sep=63.94"
 
 
21356+2918 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 213540.22+291834.1 Mag 12.41 PmRA -7.00
PmDE -15.0
 
 
21356+2918 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 213539.92+291730.3 Mag 14.25 PmRA -8.00
PmDE -16.0 Calc delta mag 1.84 Calc coord yes