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Current system
20298+4143
GRV 344


Nearby doubles
6' : 20300+4149
J 130

12' : 20307+4137
CAN 28AB

17' : 20312+4137
J 1196

20' : 20312+4132
CAN 3AB

20' : 20315+4148
BRT2265

20' : 20301+4124
CAN 14AB

21' : 20317+4143
HJ 1530

21' : 20316+4149
TDT2338

22' : 20314+4131
CAN 31AB

25' : 20311+4203
CAN 25AB

27' : 20302+4210
TDT2325

28' : 20318+4128
CAN 34AB

28' : 20313+4121
MZA 39AB

30' : 20323+4152
BU 434

31' : 20276+4202
HDS2928

31' : 20305+4113
CAN 27AB

32' : 20322+4127
MZA 24AB

33' : 20324+4130
CAN 37AB

33' : 20323+4126
CAN 36AB

34' : 20325+4129
CAN 39AB

34' : 20318+4118
CAN 4AB

34' : 20269+4152
A 293

35' : 20318+4117
CAN 33AB

35' : 20283+4113
TDT2305

35' : 20325+4126
CAN 38AB

36' : 20329+4154
BLA 8



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.

20298+4143 GRV 344

 
 
20h 29m 48.11s +41° 43' 21.6" P.A. 34.00 sep 20.5 mag 9.04,10.89 Sp F5
 
 
Coord 2000 20298+4143 Discov num GRV 344 Comp Coord arcsec 2000 20 29 48.11 +41 43 21.6
Date first 1892 Date last 2016 Obs 12
Pa first 35 Pa last 33.7 P.A. Now (θ) 33.7°
Sep first 20.8 Sep last 20.514 Sep. Now (ρ) 20.514"
Mag pri 9.04 Mag sec 10.89 delta mag (ΔM) 1.85 Spectral class F5 (yellow-white)
Pri motion ra +033 Sec motion ra +035
Pri motion dec +021 Sec motion dec +023
Notes
rPM=0.068 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3160-00185-1 Gaia DR2 2068051084017233024
 
 
WDS 20298+4143 GRV 344 : 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
20298+4143 GRV 344 2000 5 34 20.5 9.00 10.80 D 202948.11+414321.6
20298+4143 GRV 344 2002 6 34 20.6 9.00 10.80 D 202948.11+414321.6
20298+4143 GRV 344 2010 6 34 20.5 9.04 10.89 F5 202948.11+414321.6
20298+4143 GRV 344 2015 7 34 20.5 9.04 10.89 F5 202948.11+414321.6
20298+4143 GRV 344 2016 12 34 20.5 9.04 10.89 F5 202948.11+414321.6

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

 
 
WDS 20298+4143 GRV 344 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20298+4143 GRV 344 : MEASURES
 
 
No records found.

 
 
WDS 20298+4143 : VIRTUAL EYEPIECE
 
 

20298+4143 GRV 344A mag 9.04 Sp F5 20298+4143 GRV 344B sep 19.1 P.A. 26.50 mag 10.89 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 20298+4143 : ALADIN DSS IMAGE @ 20h 29m 48.11s +41° 43' 21.6"
 
 
 
 
WDS 20298+4143 GRV 344 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20298+4143 GRV 344 distance=1' 20300+4149 J 130 distance=6' 20307+4137 CAN 1Aa,Ab distance=12' 20307+4137 CAN 28AB distance=12' 20307+4137 CAN 28AC distance=12' 20307+4137 CAN 28AD distance=12' 20307+4137 CAN 28AE distance=12' 20307+4137 CAN 28AF distance=12' 20307+4137 CAN 28AG distance=12' 20307+4137 CAN 28AH distance=12' 20307+4137 CAN 28AI distance=12' 20307+4137 CAN 28AJ distance=12' 20307+4137 CAN 28AK distance=12' 20307+4137 CAN 28AL distance=12' 20307+4137 CAN 28AM distance=12' 20307+4137 CAN 28AN distance=12' 20307+4137 CAN 28AO distance=12' 20312+4137 J 1196 distance=17' 20312+4132 CAN 3AB distance=20' 20312+4132 CAN 29AC distance=20' 20315+4148 BRT2265 distance=20' 20301+4124 CAN 14AB distance=20' 20301+4124 CAN 14AC distance=20' 20301+4124 CAN 14AD distance=20' 20301+4124 CAN 14AE distance=20' 20301+4124 CAN 14AF distance=20' 20301+4124 CAN 14AG distance=20' 20301+4124 CAN 14AH distance=20' 20301+4124 CAN 14AI distance=20' 20301+4124 CAN 14AJ distance=20' 20301+4124 CAN 14AK distance=20' 20301+4124 CAN 14AL distance=20' 20317+4143 HJ 1530 distance=21' 20316+4149 TDT2338 distance=21' 20314+4131 CAN 31AB distance=22' 20314+4131 CAN 31AC distance=22' 20311+4203 CAN 2Aa,Ab distance=25' 20311+4203 CAN 25AB distance=25' 20302+4210 TDT2325 distance=27' 20318+4128 CAN 34AB distance=28' 20318+4128 CAN 34AC distance=28' 20318+4128 CAN 34AD distance=28' 20318+4128 CAN 34AE distance=28' 20318+4128 CAN 34AF distance=28' 20318+4128 CAN 34AG distance=28' 20318+4128 CAN 34AH distance=28' 20318+4128 CAN 34AI distance=28' 20318+4128 CAN 34AJ distance=28' 20318+4128 CAN 34AK distance=28' 20318+4128 CAN 34AL distance=28' 20318+4128 CAN 34AM distance=28' 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 20298+4143 GRV 344 34 20.5 1
Show 20300+4149 J 130 265 2.5 6
Show 20307+4137 CAN 1 Aa,Ab 91 0.3 12
Show 20307+4137 CAN 28 AB 336 2.6 12
Show 20307+4137 CAN 28 AC 342 6.0 12
Show 20307+4137 CAN 28 AD 168 7.0 12
Show 20307+4137 CAN 28 AE 337 7.8 12
Show 20307+4137 CAN 28 AF 20 8.2 12
Show 20307+4137 CAN 28 AG 158 9.0 12
Show 20307+4137 CAN 28 AH 284 9.2 12
Show 20307+4137 CAN 28 AI 44 10.1 12
Show 20307+4137 CAN 28 AJ 118 10.1 12
Show 20307+4137 CAN 28 AK 14 10.2 12
Show 20307+4137 CAN 28 AL 104 10.3 12
Show 20307+4137 CAN 28 AM 77 12.0 12
Show 20307+4137 CAN 28 AN 2 13.4 12
Show 20307+4137 CAN 28 AO 281 13.8 12
Show 20312+4137 J 1196 9 4.7 17
Show 20312+4132 CAN 3 AB 342 1.2 20
Show 20312+4132 CAN 29 AC 152 6.3 20
Show 20315+4148 BRT2265 285 5.4 20
Show 20301+4124 CAN 14 AB 190 4.2 20
Show 20301+4124 CAN 14 AC 99 4.4 20
Show 20301+4124 CAN 14 AD 114 5.6 20
Show 20301+4124 CAN 14 AE 212 6.7 20
Show 20301+4124 CAN 14 AF 316 8.3 20
Show 20301+4124 CAN 14 AG 1 9.5 20
Show 20301+4124 CAN 14 AH 74 9.6 20
Show 20301+4124 CAN 14 AI 356 9.7 20
Show 20301+4124 CAN 14 AJ 17 9.8 20
Show 20301+4124 CAN 14 AK 241 12.6 20
Show 20301+4124 CAN 14 AL 52 12.7 20
Show 20317+4143 HJ 1530 242 16.2 21
Show 20316+4149 TDT2338 200 2.5 21
Show 20314+4131 CAN 31 AB 116 3.9 22
Show 20314+4131 CAN 31 AC 30 6.0 22
Show 20311+4203 CAN 2 Aa,Ab 258 0.3 25
Show 20311+4203 CAN 25 AB 221 4.2 25
Show 20302+4210 TDT2325 261 2.0 27
Show 20318+4128 CAN 34 AB 276 2.9 28
Show 20318+4128 CAN 34 AC 328 3.0 28
Show 20318+4128 CAN 34 AD 63 3.5 28
Show 20318+4128 CAN 34 AE 177 4.8 28
Show 20318+4128 CAN 34 AF 112 5.4 28
Show 20318+4128 CAN 34 AG 92 5.9 28
Show 20318+4128 CAN 34 AH 148 8.3 28
Show 20318+4128 CAN 34 AI 295 9.5 28
Show 20318+4128 CAN 34 AJ 341 9.5 28
Show 20318+4128 CAN 34 AK 7 9.6 28
Show 20318+4128 CAN 34 AL 105 9.6 28
Show 20318+4128 CAN 34 AM 282 12.0 28

 
 
WDS 20298+4143 : COMPONENTS
 
 
  A
B pa=26.5°
sep=19.06"
 
 
20298+4143 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202948.11+414321.6 Mag 9.04 Spectral class F5 (yellow-white)
PmRA 33.00 PmDE 21.0 Tycho2 3160-00185-1
Tycho2
Tycho2 3160-00185-1 Pflag RAmdeg 307.45045179 DEmdeg 41.72268192
PmRA 30.7 PmDE 22.6 E RAmdeg 9 E DEmdeg 9
E pmRA 1.2 E pmDE 1.2 EpRAm 1990.68 EpDEm 1990.99
Num 7 Q RAmdeg 0.9 Q DEmdeg 0.6 Q pmRA 0.9
Q pmDE 0.6 BTmag 9.536 E BTmag 0.019 VTmag 9.043
E VTmag 0.015 Prox 755 TYC T HIP
CCDM RAdeg 307.45035611 DEdeg 41.72262972 EpRA 1990 1.60
EpDE 1990 1.76 E RAdeg 8.5 E DEdeg 8.6 Posflg
Corr 0.0
 
 
20298+4143 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202948.87+414338.7 Mag 10.89 PmRA 35.00
PmDE 23.0 Calc delta mag 1.85 Calc coord yes