20427+0217 GRV 370

 
 
20h 42m 45.49s +02° 17' 48.8" P.A. 313.00 sep 25.4 mag 9.50,11.70 Sp F5
 
 
Coord 2000 20427+0217 Discov num GRV 370 Comp Coord arcsec 2000 20 42 45.49 +02 17 48.8
Date first 1909 Date last 2015 Obs 12
Pa first 313 Pa last 313 P.A. Now (θ) 313°
Sep first 25.4 Sep last 25.434 Sep. Now (ρ) 25.434"
Mag pri 9.50 Mag sec 11.70 delta mag (ΔM) 2.2 Spectral class F5 (yellow-white)
Pri motion ra +027 Sec motion ra +027
Pri motion dec -012 Sec motion dec -011
Notes
rPM=0.034 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius Tycho2 0515-02165-1 Gaia DR2 4231833269615129728
 
 
WDS 20427+0217 GRV 370 : 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
20427+0217 GRV 370 2000 7 313 25.4 9.50 11.77 D 204245.49+021748.8
20427+0217 GRV 370 2013 8 314 25.4 9.50 11.70 F5 204245.49+021748.8
20427+0217 GRV 370 2015 10 313 25.4 9.50 11.70 F5 204245.49+021748.8

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

 
 
WDS 20427+0217 GRV 370 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20427+0217 GRV 370 : MEASURES
 
 
No records found.

 
 
WDS 20427+0217 : VIRTUAL EYEPIECE
 
 

20427+0217 GRV 370A mag 9.5 Sp F5 20427+0217 GRV 370B sep 25.4 P.A. 313.00 mag 11.7 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 20427+0217 : ALADIN DSS IMAGE @ 20h 42m 45.49s +02° 17' 48.8"
 
 
 
 
WDS 20427+0217 GRV 370 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20427+0217  GRV 370 distance=1' 20419+0218  UC  252 distance=13' 20434+0204  GWP2989 distance=17' 20413+0216  BAL1569 distance=24' 20418+0156  GWP2986 distance=27' 20414+0244  GWP2984 distance=34' 20431+0253  AG  262 distance=36' 20414+0147  BAL1570 distance=37' 20419+0258  HJ 2988 distance=42' 20455+0201  BAL1571 distance=45' 20424+0304  KPP3360 distance=47' 20459+0211  GRV 377 distance=48' 20393+0219  BAL1567 distance=53' 20409+0128  BAL1568 distance=57' 20388+0202  HJ  920 distance=61' 20387+0156  J   569 distance=69' 20400+0118  A  2283AB distance=73' 20472+0247  UC 4286 distance=74' 20471+0253  TDT2536 distance=74' 20414+0105  GWP2985 distance=76' 20389+0128  KPP3420 distance=77' 20391+0312  BAL2032 distance=77' 20376+0211  GRV 364 distance=78' 20403+0326  STT 409AB distance=78' 20403+0326  STT 409AC distance=78' 20425+0100  TDT2487 distance=79' 20440+0049  HJ  923 distance=79' 20433+0059  SLN  39 distance=80' 20481+0224  BAL2035 distance=81' 20377+0152  J  3255 distance=83' 20393+0112  BAL1217 distance=84' 20412+0338  BAL2543 distance=84' 20485+0143  RST5471 distance=93' 20373+0134  GWP2973 distance=94' 20372+0135  J  2574 distance=95' 20441+0044  BAL1218 distance=97' 20460+0344  BAL2544 distance=99' 20379+0325  BAL2540 distance=99' 20403+0349  J   156 distance=100' 20493+0156  OSO 136 distance=102' 20367+0132  GRV 361 distance=102' 20452+0352  UC 4280 distance=102' 20475+0105  BAL1220 distance=103' 20466+0344  BAL2545 distance=104' 20403+0041  A  2284 distance=104' 20409-0036  A   874 distance=106' 20373+0332  BAL2539 distance=111' 20366+0123  HJ 5513AB distance=112' 20366+0123  HJ 5513AC distance=112' 20366+0123  HJ 5513AD distance=112' 20445+0029  BAL1219 distance=113' 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 20427+0217 GRV 370 313 25.4 1
Show 20419+0218 UC 252 164 62.6 13
Show 20434+0204 GWP2989 131 44.7 17
Show 20413+0216 BAL1569 62 11.2 24
Show 20418+0156 GWP2986 350 16.1 27
Show 20414+0244 GWP2984 263 182.0 34
Show 20431+0253 AG 262 94 5.7 36
Show 20414+0147 BAL1570 12 5.1 37
Show 20419+0258 HJ 2988 142 23.2 42
Show 20455+0201 BAL1571 307 6.8 45
Show 20424+0304 KPP3360 234 1.5 47
Show 20459+0211 GRV 377 354 27.3 48
Show 20393+0219 BAL1567 205 19.3 53
Show 20409+0128 BAL1568 346 8.8 57
Show 20388+0202 HJ 920 213 14.1 61
Show 20387+0156 J 569 316 3.0 69
Show 20400+0118 A 2283 AB 350 2.3 73
Show 20472+0247 UC 4286 114 31.3 74
Show 20471+0253 TDT2536 352 1.6 74
Show 20414+0105 GWP2985 352 30.4 76
Show 20389+0128 KPP3420 241 6.3 77
Show 20391+0312 BAL2032 33 16.3 77
Show 20376+0211 GRV 364 156 40.3 78
Show 20403+0326 STT 409 AB 84 16.8 78
Show 20403+0326 STT 409 AC 330 62.8 78
Show 20425+0100 TDT2487 302 1.1 79
Show 20440+0049 HJ 923 62 7.0 79
Show 20433+0059 SLN 39 233 19.0 80
Show 20481+0224 BAL2035 304 12.9 81
Show 20377+0152 J 3255 327 3.7 83
Show 20393+0112 BAL1217 2 7.9 84
Show 20412+0338 BAL2543 33 6.5 84
Show 20485+0143 RST5471 14 0.6 93
Show 20373+0134 GWP2973 106 21.3 94
Show 20372+0135 J 2574 158 5.0 95
Show 20441+0044 BAL1218 229 3.4 97
Show 20460+0344 BAL2544 14 16.7 99
Show 20379+0325 BAL2540 94 16.1 99
Show 20403+0349 J 156 21 2.3 100
Show 20493+0156 OSO 136 109 12.8 102
Show 20367+0132 GRV 361 103 28.0 102
Show 20452+0352 UC 4280 255 36.1 102
Show 20475+0105 BAL1220 193 21.1 103
Show 20466+0344 BAL2545 281 11.8 104
Show 20403+0041 A 2284 287 4.8 104
Show 20409-0036 A 874 345 1.9 106
Show 20373+0332 BAL2539 77 130.2 111
Show 20366+0123 HJ 5513 AB 93 11.9 112
Show 20366+0123 HJ 5513 AC 284 28.7 112
Show 20366+0123 HJ 5513 AD 89 42.5 112
Show 20445+0029 BAL1219 214 17.3 113

 
 
WDS 20427+0217 : COMPONENTS
 
 
  A
B pa=313.0°
sep=25.42"
 
 
20427+0217 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204245.49+021748.8 Mag 9.5 Spectral class F5 (yellow-white)
PmRA 27.00 PmDE -12.0 Tycho2 0515-02165-1
Tycho2
Tycho2 0515-02165-1 Pflag RAmdeg 310.68953493 DEmdeg 2.29687808
PmRA 25.0 PmDE -12.7 E RAmdeg 13 E DEmdeg 16
E pmRA 1.1 E pmDE 1.1 EpRAm 1988.93 EpDEm 1987.43
Num 9 Q RAmdeg 0.7 Q DEmdeg 0.6 Q pmRA 0.7
Q pmDE 0.6 BTmag 10.019 E BTmag 0.028 VTmag 9.501
E VTmag 0.024 Prox 255 TYC T HIP
CCDM RAdeg 310.68947694 DEdeg 2.29690833 EpRA 1990 1.73
EpDE 1990 1.43 E RAdeg 13.9 E DEdeg 17.1 Posflg
Corr 0.0
 
 
20427+0217 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204244.25+021806.1 Mag 11.7 PmRA 27.00
PmDE -11.0 Tycho2 0515-01726-1 Calc delta mag 2.2 Calc coord yes
Tycho2
Tycho2 0515-01726-1 Pflag RAmdeg 310.68437610 DEmdeg 2.30171663
PmRA 26.8 PmDE -11.0 E RAmdeg 37 E DEmdeg 39
E pmRA 1.6 E pmDE 1.6 EpRAm 1975.10 EpDEm 1973.22
Num 5 Q RAmdeg 0.4 Q DEmdeg 0.7 Q pmRA 0.3
Q pmDE 0.8 BTmag 12.655 E BTmag 0.264 VTmag 11.768
E VTmag 0.171 Prox 255 TYC HIP
CCDM RAdeg 310.68430889 DEdeg 2.30175528 EpRA 1990 1.73
EpDE 1990 1.38 E RAdeg 85.2 E DEdeg 108.4 Posflg
Corr -0.1