20168+3731 ARY 25 (HD 228721)

 
 
20h 16m 52.85s +37° 31' 04.7" P.A. 293.00 sep 147.1 mag 8.65,8.72 Sp G9.5IIIb
 
 
Coord 2000 20168+3731 Discov num ARY  25 Comp Coord arcsec 2000 20 16 52.85 +37 31 04.7
Date first 1896 Date last 2022 Obs 20
Pa first 295 Pa last 293.2 P.A. Now (θ) 293.2°
Sep first 144.8 Sep last 147.08 Sep. Now (ρ) 147.08"
Mag pri 8.65 Mag sec 8.72 delta mag (ΔM) 0.07 Spectral class G9.5IIIb (yellow)
Pri motion ra +026 Sec motion ra +000
Pri motion dec +000 Sec motion dec -005
Notes
rPM=1.018
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 228721 Constellation Cygnus SAO 69750 Tycho2 3151-00943-1
Gaia DR2 2060665733151845120 HD 228721
 
 
WDS 20168+3731 ARY 25 (HD 228721) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ary1977 Ma - Argyle, R.W. ...................
Ary1977 +Mr Webb Society Handbook 1, 1977
Ary1979 Ma j Argyle, R.W. 1979RGOB..184...17A
Ary1979 R. Obs. Bull. #184, 1979
Ary1983 Ma j Argyle, R.W. 1983A&AS...53..177A
Ary1983 A&AS 53, 177, 1983
Ary1989 Mb - Argyle, R.W. ...................
Ary1989 Webb Soc., Double Star Circ. 4, 1989
Ary1992 Ma - Argyle, R.W. ...................
Ary1992 Webb Soc., Double Star Circ. 5, 1992
Ary1994 Ma - Argyle, R.W. ...................
Ary1994 Webb Soc., Double Star Circ. 6, 1994
Ary1998 Ma - Argyle, R.W. ...................
Ary1998 Webb Soc., Double Star Circ. 7, 1998
Ary2000 Ma - Argyle, R.W. ...................
Ary2000 Webb Soc., Double Star Circ. 8, 2000
Ary2001a orb - Argyle, R.W. & Alzner, A. 2001IAUDS.143....1A
Ary2001a Inf. Circ. 143, 1, 2001
Ary2001b Ma - Argyle, R.W. ...................
Ary2001b Webb Soc., Double Star Circ. 9, 2001
Ary2002 Ma - Argyle, R.W. ...................
Ary2002 Webb Soc., Double Star Circ. 10, 2002
Ary2002b orb - Argyle, R.W., Alzner, A. & Horch, E. 2002A&A...384..171A
Ary2002b A&A 384, 171, 2002
Ary2003 Ma j Argyle, R.W. ...................
Ary2003 Webb Soc., Double Star Circ. 11, 2, 2003
Ary2004 Ma j Argyle, R.W. ...................
Ary2004 Webb Soc., Double Star Circ. 12, 1, 2004
Ary2005 Ma j Argyle, R.W. ...................
Ary2005 Webb Soc., Double Star Circ. 13, 1, 2005
Ary2006 Ma j Argyle, R.W. ...................
Ary2006 Webb Soc., Double Star Circ. 14, 2006
Ary2007 Ma j Argyle, R.W. ...................
Ary2007 Webb Soc., Double Star Circ. 15, 2007
Ary2008 Ma j Argyle, R.W. ...................
Ary2008 Webb Soc., Double Star Circ. 16, 2008
Ary2009 Ma j Argyle, R.W. ...................
Ary2009 Webb Soc., Double Star Circ. 17, 2009
Ary2010 orb - Argyle, R.W. & Alzner, A. 2010IAUDS.170....1A
Ary2010 Inf. Circ. 170, 1, 2010
Ary2010b Ma j Argyle, R.W. ...................
Ary2010b Webb Soc., Double Star Circ. 18, 2010
Ary2011 Ma j Argyle, R.W. ...................
Ary2011 Webb Soc., Double Star Circ. 19, 2011
Ary2012 Ma j Argyle, R.W. ...................
Ary2012 Webb Soc., Double Star Circ. 20, 2012
Ary2013 Ma j Argyle, R.W. ...................
Ary2013 Webb Soc., Double Star Circ. 21, 2013
Ary2014 Ma j Argyle, R.W. ...................
Ary2014 Webb Soc., Double Star Circ. 22, 2014
Ary2014b Ma j Argyle, R.W. ...................
Ary2014b Webb Soc., Double Star Circ. 22, 2014
Ary2015 Ma j Argyle, R.W. ...................
Ary2015 Webb Soc., Double Star Circ. 23, 1, 2015
Ary2015b Ma j Argyle, R.W., Alzner, A. & van Leeuwen, F. 2015AN....336..378S
Ary2015b +orb AN 336, 378, 2015
Ary2016 Ma j Argyle, R.W. ...................
Ary2016 Webb Soc., Double Star Circ. 24, 1, 2016
Ary2016b Ma j Argyle, R.W. (measure in Csr2016) ..................
Ary2016b Webb Soc., Double Star Circ. 24, 40, 2016
Ary2017a Ma j Argyle, R.W. ...................
Ary2017a Webb Soc., Double Star Circ. 25, 1, 2017
Ary2017b Ma j Argyle, R.W. ...................
Ary2017b Webb Soc., Double Star Circ. 25, 6, 2017
Ary2018a Ma j Argyle, R.W. ...................
Ary2018a Webb Soc., Double Star Circ. 26, 1, 2018
Ary2019a Ma j Argyle, R.W. ...................
Ary2019a Webb Soc., Double Star Circ. 27, 1, 2019
Ary2020 Ma j Argyle, R.A. .
Ary2020 Webb Soc., Double Star Circ. 28, 1, 2020
Ary2022 Hg j Argyle, R.A. .
Ary2022 Webb Soc., Double Star Circ. 30, 6, 2022
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20168+3731 ARY 25 2000 11 293 144.8 8.65 8.72 D 201652.85+373104.7
20168+3731 ARY 25 2010 12 293 146.6 8.65 8.72 D 201652.85+373104.7
20168+3731 ARY 25 2015 15 293 146.9 8.65 8.72 G9.5IIIb 201652.85+373104.7
20168+3731 ARY 25 2019 19 293 147.1 8.65 8.72 G9.5IIIb 201652.85+373104.7
20168+3731 ARY 25 2022 20 293 147.1 8.65 8.72 G9.5IIIb 201652.85+373104.7

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

 
 
WDS 20168+3731 ARY 25 (HD 228721) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20168+3731 ARY 25 (HD 228721) : MEASURES
 
 
No records found.

 
 
WDS 20168+3731 (HD 228721) : VIRTUAL EYEPIECE
 
 

20168+3731 ARY  25A mag 8.65 Sp G9.5IIIb 20168+3731 ARY  25B sep 121.9 P.A. 298.40 mag 8.72 virtual eyepiece
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Radius:
Components only
 
 
WDS 20168+3731 (HD 228721) : ALADIN DSS IMAGE @ 20h 16m 52.85s +37° 31' 04.7"
 
 
 
 
WDS 20168+3731 ARY 25 (HD 228721) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20168+3731  ARY  25 distance=0' 20170+3725  HDS2891Aa,Ab distance=6' 20170+3725  A  1423AB distance=6' 20170+3725  CIA   9Aa1,2 distance=6' 20171+3738  SLE 986AB distance=8' 20171+3738  SLE 986AC distance=8' 20165+3739  BU  442UV distance=9' 20165+3739  BU  442BC distance=9' 20165+3739  BU  442BD distance=9' 20165+3739  ABH 135BE distance=9' 20165+3739  ABH 135BF distance=9' 20165+3739  ABH 135BO distance=9' 20165+3739  BU  442BP distance=9' 20165+3739  BU  442BR distance=9' 20165+3739  BU  442BS distance=9' 20165+3739  BU  442BT distance=9' 20165+3739  BU  442BU distance=9' 20165+3739  BU  442BV distance=9' 20165+3739  BU  442CD distance=9' 20165+3739  BU  442CU distance=9' 20165+3739  BU  442CV distance=9' 20165+3739  BU  442AB distance=9' 20165+3739  SLE 982AG distance=9' 20165+3739  SLE 982AH distance=9' 20165+3739  SLE 982AI distance=9' 20165+3739  SLE 982AJ distance=9' 20165+3739  SLE 982AK distance=9' 20165+3739  SLE 982AL distance=9' 20165+3739  SLE 982AM distance=9' 20165+3739  SLE 982AN distance=9' 20165+3739  BU  442AQ distance=9' 20165+3739  SLV   8AC distance=9' 20165+3739  BU  442AP distance=9' 20165+3739  BU  442AR distance=9' 20165+3739  ABH 135AD distance=9' 20165+3739  SLE 982AO distance=9' 20176+3729  SLE 987 distance=10' 20161+3738  SLE 980 distance=12' 20169+3743  SLE 985 distance=12' 20177+3740  SLE 989 distance=14' 20162+3745  TOB 183 distance=17' 20185+3735  TDT2155 distance=20' 20150+3729  KPP2316 distance=23' 20160+3751  TDT2130 distance=23' 20179+3712  SEI1071 distance=23' 20155+3713  ES 2189 distance=24' 20189+3730  TDT2160 distance=24' 20151+3742  COU2416 distance=24' 20168+3755  SLE 984 distance=25' 20187+3720  SLE 995 distance=25' 20150+3743  SEI1043 distance=26' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 20168+3731 ARY 25 293 147.1
Show 20170+3725 HDS2891 Aa,Ab 55 0.9 6
Show 20170+3725 A 1423 AB 128 4.4 6
Show 20170+3725 CIA 9 Aa1,2 305 0.0 6
Show 20171+3738 SLE 986 AB 347 6.4 8
Show 20171+3738 SLE 986 AC 1 17.9 8
Show 20165+3739 BU 442 UV 127 8.0 9
Show 20165+3739 BU 442 BC 49 16.9 9
Show 20165+3739 BU 442 BD 2 20.1 9
Show 20165+3739 ABH 135 BE 88 50.2 9
Show 20165+3739 ABH 135 BF 139 64.4 9
Show 20165+3739 ABH 135 BO 125 41.5 9
Show 20165+3739 BU 442 BP 269 16.6 9
Show 20165+3739 BU 442 BR 308 34.4 9
Show 20165+3739 BU 442 BS 124 3.7 9
Show 20165+3739 BU 442 BT 162 6.5 9
Show 20165+3739 BU 442 BU 74 26.0 9
Show 20165+3739 BU 442 BV 86 31.3 9
Show 20165+3739 BU 442 CD 306 15.1 9
Show 20165+3739 BU 442 CU 109 12.7 9
Show 20165+3739 BU 442 CV 116 20.4 9
Show 20165+3739 BU 442 AB 103 18.3 9
Show 20165+3739 SLE 982 AG 10 88.5 9
Show 20165+3739 SLE 982 AH 19 111.6 9
Show 20165+3739 SLE 982 AI 43 63.2 9
Show 20165+3739 SLE 982 AJ 34 96.5 9
Show 20165+3739 SLE 982 AK 34 114.9 9
Show 20165+3739 SLE 982 AL 27 177.3 9
Show 20165+3739 SLE 982 AM 65 88.9 9
Show 20165+3739 SLE 982 AN 76 155.9 9
Show 20165+3739 BU 442 AQ 156 8.7 9
Show 20165+3739 SLV 8 AC 77 31.4 9
Show 20165+3739 BU 442 AP 155 4.7 9
Show 20165+3739 BU 442 AR 332 19.2 9
Show 20165+3739 ABH 135 AD 49 24.4 9
Show 20165+3739 SLE 982 AO 118 58.7 9
Show 20176+3729 SLE 987 208 11.1 10
Show 20161+3738 SLE 980 226 14.2 12
Show 20169+3743 SLE 985 186 14.1 12
Show 20177+3740 SLE 989 223 8.9 14
Show 20162+3745 TOB 183 256 14.7 17
Show 20185+3735 TDT2155 125 0.6 20
Show 20150+3729 KPP2316 227 19.3 23
Show 20160+3751 TDT2130 236 2.0 23
Show 20179+3712 SEI1071 11 27.5 23
Show 20155+3713 ES 2189 136 3.3 24
Show 20189+3730 TDT2160 274 6.0 24
Show 20151+3742 COU2416 128 0.3 24
Show 20168+3755 SLE 984 175 8.2 25
Show 20187+3720 SLE 995 143 8.8 25
Show 20150+3743 SEI1043 341 21.1 26

 
 
WDS 20168+3731 : COMPONENTS
 
 
  A
B pa=298.4°
sep=121.87"
 
 
20168+3731 A
 
 
Componente originario normalizzato AB Name HD 228721 Coord arcsec 2000 201652.85+373104.7 Mag 8.65
Spectral class G9.5IIIb (yellow) PmRA 26.00 PmDE 0.0 SAO 69750
Tycho2 3151-00943-1 HD 228721 DM BD+37 3865
Tycho2
Tycho2 3151-00943-1 Pflag RAmdeg 304.22019830 DEmdeg 37.51798120
PmRA 25.7 PmDE 1.0 E RAmdeg 9 E DEmdeg 8
E pmRA 1.2 E pmDE 1.2 EpRAm 1990.56 EpDEm 1990.94
Num 10 Q RAmdeg 0.9 Q DEmdeg 1.2 Q pmRA 0.9
Q pmDE 1.2 BTmag 9.883 E BTmag 0.023 VTmag 8.654
E VTmag 0.013 Prox 999 TYC T HIP
CCDM RAdeg 304.22012306 DEdeg 37.51797861 EpRA 1990 1.61
EpDE 1990 1.69 E RAdeg 8.5 E DEdeg 8.4 Posflg
Corr 0.0
SAO
SAO 69750 DelFlag RA1950 PmRA1950 0.0019
DE1950 PmDE1950 0.004 Vmag 8.4 SpType A7
Double code Source 5 CatNum 1947 DM BD+37 3865
DMcomp BDsup HD 228721 M HD 0
GC RA1950rad 5.30153747 DE1950rad 0.65209843 PmRA2000 0.0022
PmDE2000 0.002
 
 
20168+3731 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 201643.84+373202.6 Mag 8.72 PmRA 0.00
PmDE -5.0 Calc delta mag 0.07 Calc coord yes