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Current system
21257+3422
GRV 465


Nearby doubles
14' : 21267+3413
ES 2261

18' : 21272+3428
TDT2975

19' : 21267+3438
SEI1515

24' : 21254+3446
TDS1128

27' : 21271+3402
ES 2262

32' : 21279+3439
TDT2980

36' : 21261+3457
TDT2962

37' : 21242+3358
J 2346

41' : 21284+3447
COU1638

41' : 21282+3355
TDT2982

43' : 21268+3337
ES 2382

45' : 21262+3339
TDT2964

49' : 21291+3357
ES 2263

49' : 21295+3438
TDT2993

51' : 21217+3436
COU1334

52' : 21229+3459
TDT2934

54' : 21216+3409
RAO 452

54' : 21258+3329
GYL 56

55' : 21267+3329
TDT2973

59' : 21302+3404
HJ 1652

63' : 21225+3509
POP 50

65' : 21308+3440
SEI1522

65' : 21206+3420
JNN 129

67' : 21261+3529
POP 49

67' : 21308+3446
COU1479

68' : 21265+3315
HJ 935AB



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.

21257+3422 GRV 465

 
 
21h 25m 47.93s +34° 22' 32.7" P.A. 6.00 sep 51.1 mag 12.44,12.92
 
 
Coord 2000 21257+3422 Discov num GRV 465 Comp Coord arcsec 2000 21 25 47.93 +34 22 32.7
Date first 1934 Date last 2015 Obs 8
Pa first 6 Pa last 5.7 P.A. Now (θ) 5.7°
Sep first 51.3 Sep last 51.109 Sep. Now (ρ) 51.109"
Mag pri 12.44 Mag sec 12.92 delta mag (ΔM) 0.48 Spectral class
Pri motion ra -009 Sec motion ra -013
Pri motion dec -011 Sec motion dec -011
Notes
rPM=0.235 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1855169140212141440
 
 
WDS 21257+3422 GRV 465 : 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
21257+3422 GRV 465 2000 3 6 51.1 12.30 12.70 D 212547.93+342232.7
21257+3422 GRV 465 2002 4 6 51.1 12.30 12.70 D 212547.93+342232.7
21257+3422 GRV 465 2010 4 6 51.1 12.44 12.92 212547.93+342232.7
21257+3422 GRV 465 2015 5 6 51.1 12.44 12.92 212547.93+342232.7

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

 
 
WDS 21257+3422 GRV 465 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21257+3422 GRV 465 : MEASURES
 
 
No records found.

 
 
WDS 21257+3422 : VIRTUAL EYEPIECE
 
 

21257+3422 GRV 465A mag 12.44 21257+3422 GRV 465B sep 51.0 P.A. 4.70 mag 12.92 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 21257+3422 : ALADIN DSS IMAGE @ 21h 25m 47.93s +34° 22' 32.7"
 
 
 
 
WDS 21257+3422 GRV 465 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21257+3422 GRV 465 distance=1' 21267+3413 ES 2261 distance=14' 21272+3428 TDT2975 distance=18' 21267+3438 SEI1515 distance=19' 21254+3446 TDS1128 distance=24' 21271+3402 ES 2262 distance=27' 21279+3439 TDT2980 distance=32' 21261+3457 TDT2962 distance=36' 21242+3358 J 2346 distance=37' 21284+3447 COU1638 distance=41' 21282+3355 TDT2982 distance=41' 21268+3337 ES 2382 distance=43' 21262+3339 TDT2964 distance=45' 21291+3357 ES 2263 distance=49' 21295+3438 TDT2993 distance=49' 21217+3436 COU1334 distance=51' 21229+3459 TDT2934 distance=52' 21216+3409 RAO 452 distance=54' 21258+3329 GYL 56 distance=54' 21267+3329 TDT2973 distance=55' 21302+3404 HJ 1652 distance=59' 21225+3509 POP 50 distance=63' 21308+3440 SEI1522 distance=65' 21206+3420 JNN 129 distance=65' 21261+3529 POP 49 distance=67' 21308+3446 COU1479 distance=67' 21265+3315 HJ 935BC distance=68' 21265+3315 HJ 935AB distance=68' 21304+3504 HLD 45 distance=70' 21299+3519 TDT2996 distance=76' 21214+3517 GRV 454 distance=78' 21321+3412 HO 603BC distance=78' 21221+3525 ES 2259 distance=78' 21321+3412 HO 603AB distance=79' 21320+3448 COU1480 distance=80' 21318+3349 STF2802 distance=82' 21218+3528 TDT2923 distance=82' 21192+3411 SLE 385 distance=83' 21225+3311 KPP3369 distance=83' 21219+3530 TDT2925 distance=83' 21190+3418 COU 131 distance=84' 21207+3327 BU 446AB distance=85' 21207+3327 BU 446AC distance=85' 21207+3327 FOX9035AD distance=85' 21322+3349 HEI 882 distance=86' 21214+3321 J 3136 distance=87' 21232+3543 ALI 218 distance=87' 21318+3338 KUI 124 distance=88' 21326+3401 KPP1585 distance=88' 21186+3430 HU 769 distance=90' 21322+3341 ES 2383 distance=91' 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 21257+3422 GRV 465 6 51.1 1
Show 21267+3413 ES 2261 155 4.1 14
Show 21272+3428 TDT2975 259 2.1 18
Show 21267+3438 SEI1515 43 10.6 19
Show 21254+3446 TDS1128 18 1.3 24
Show 21271+3402 ES 2262 74 1.3 27
Show 21279+3439 TDT2980 235 2.3 32
Show 21261+3457 TDT2962 238 2.4 36
Show 21242+3358 J 2346 229 4.1 37
Show 21284+3447 COU1638 226 1.3 41
Show 21282+3355 TDT2982 358 1.8 41
Show 21268+3337 ES 2382 257 7.7 43
Show 21262+3339 TDT2964 258 0.4 45
Show 21291+3357 ES 2263 28 2.8 49
Show 21295+3438 TDT2993 246 0.5 49
Show 21217+3436 COU1334 148 0.8 51
Show 21229+3459 TDT2934 304 1.0 52
Show 21216+3409 RAO 452 214 3.7 54
Show 21258+3329 GYL 56 3 16.3 54
Show 21267+3329 TDT2973 330 0.5 55
Show 21302+3404 HJ 1652 26 15.4 59
Show 21225+3509 POP 50 29 7.1 63
Show 21308+3440 SEI1522 180 23.7 65
Show 21206+3420 JNN 129 213 0.1 65
Show 21261+3529 POP 49 205 4.8 67
Show 21308+3446 COU1479 143 0.7 67
Show 21265+3315 HJ 935 BC 52 1.7 68
Show 21265+3315 HJ 935 AB 16 12.9 68
Show 21304+3504 HLD 45 198 1.3 70
Show 21299+3519 TDT2996 122 1.3 76
Show 21214+3517 GRV 454 168 48.6 78
Show 21321+3412 HO 603 BC 276 3.6 78
Show 21221+3525 ES 2259 245 4.3 78
Show 21321+3412 HO 603 AB 251 80.6 79
Show 21320+3448 COU1480 204 1.7 80
Show 21318+3349 STF2802 9 3.9 82
Show 21218+3528 TDT2923 79 1.4 82
Show 21192+3411 SLE 385 175 12.8 83
Show 21225+3311 KPP3369 47 1.8 83
Show 21219+3530 TDT2925 228 2.6 83
Show 21190+3418 COU 131 195 3.9 84
Show 21207+3327 BU 446 AB 258 3.2 85
Show 21207+3327 BU 446 AC 214 70.8 85
Show 21207+3327 FOX9035 AD 109 74.2 85
Show 21322+3349 HEI 882 182 2.0 86
Show 21214+3321 J 3136 179 8.1 87
Show 21232+3543 ALI 218 264 12.2 87
Show 21318+3338 KUI 124 143 4.2 88
Show 21326+3401 KPP1585 342 12.0 88
Show 21186+3430 HU 769 178 0.9 90
Show 21322+3341 ES 2383 44 5.2 91

 
 
WDS 21257+3422 : COMPONENTS
 
 
  A
B pa=4.7°
sep=51.03"
 
 
21257+3422 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 212547.93+342232.7 Mag 12.44 PmRA -9.00
PmDE -11.0
 
 
21257+3422 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212548.27+342323.6 Mag 12.92 PmRA -13.00
PmDE -11.0 Calc delta mag 0.48 Calc coord yes