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Doubles in session


Current system
20520+4346
SKF 2740 BC


Nearby doubles
24' : 20535+4328
LDS2465

28' : 20501+4404
STT 595AB

29' : 20517+4317
LDS2461

31' : 20512+4415
CHN 31

33' : 20524+4314
LDS2462

36' : 20519+4309
GRV 389

38' : 20509+4421
CHN 30AB

39' : 20506+4421
CHN 29

41' : 20532+4423
LSC 94

43' : 20553+4322
LDS2468

43' : 20559+4345
COU2543

45' : 20525+4430
BRT2279

48' : 20476+4347
CHN 28

49' : 20530+4258
COU2542

50' : 20565+4333
BRT1139

51' : 20473+4345
COU2425

53' : 20521+4438
HER 18

53' : 20568+4335
BRT1957

55' : 20470+4335
GRV 380AB

60' : 20474+4314
TDT2539

61' : 20538+4443
LDS5914

62' : 20564+4308
COU2544

64' : 20461+4353
GRV 378

64' : 20573+4319
ES 1450

67' : 20472+4427
COU2424

68' : 20513+4238
A 614



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.

20520+4346 SKF 2740 BC

 
 
20h 51m 59.38s +43° 45' 24.2" P.A. 192.00 sep 73.4 mag 8.94,11.90 Sp A3m dist. 363.64 pc (1186.19 l.y.)
 
 
Coord 2000 20520+4346 Discov num SKF2740 Comp BC Coord arcsec 2000 20 51 59.38 +43 45 24.2
Date first 1892 Date last 2015 Obs 9
Pa first 192 Pa last 192.1 P.A. Now (θ) 192.1°
Sep first 73.3 Sep last 73.429 Sep. Now (ρ) 73.429"
Mag pri 8.94 Mag sec 11.90 delta mag (ΔM) 2.96 Spectral class A3m (white)
Pri motion ra +029 Sec motion ra +029
Pri motion dec +005 Sec motion dec +005
Notes V (Proper motion indicates physical)
This double is physical.
 
 
20520+4346 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 198896 20 51 59 +43 45 29 STT 416 AB 2016 109 117 9.6 8.64 8.94 0.30
Show 20 51 59 +43 45 24 SKF 2740 BC 2015 9 192 73.4 8.94 11.90 2.96 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus HIP 102990 Tycho2 3179-01479-1 Gaia DR2 2066846221134067840
HD 198896 BD BD+43 3746 Distance 363.64 Distance ly 1186.19
 
 
WDS 20520+4346 SKF 2740 BC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Skf2000 Ma - Skiff, B.A. ...................
Skf2000 Webb Soc., Double Star Circ. 8, 2000 (may not be properly precessed)
Skf2002 C - Skiff, B.A. ...................
Skf2002 private communication, 2002
Skf2002 (measure based on 2MASS data, may not be properly precessed)
Skf2003 - Skiff, B.A. ...................
Skf2003 private communication, 2003 (may not be properly precessed)
Skf2004 - Skiff, B.A. ...................
Skf2004 private communication, 2004 (may not be properly precessed)
Skf2004 (coordinates and identifications for Stock & Wroblewski pairs)
Skf2005 C - Skiff, B.A. ...................
Skf2005 private communication, 2005 (may not be properly precessed)
Skf2006 - Skiff, B.A. ...................
Skf2006 private communication, 2006 (may not be properly precessed)
Skf2006b Pa - Skiff, B.A. ...................
Skf2006b private communication, 2006 (may not be properly precessed)
Skf2006b (data mining of Stephenson, C.B., AJ 91, 144, 1986) 1986AJ.....91..144S
Skf2006c Po - Skiff, B.A. ...................
Skf2006c private communication, 2006 (may not be properly precessed)
Skf2006c (data mining of Joy & Abt, ApJS 28, 1, 1974) 1974ApJS...28....1J
Skf2007 - Skiff, B.A. ...................
Skf2007 private communication, 2007 (may not be properly precessed)
Skf2009 E2 - Skiff, B.A. ...................
Skf2009 private communication, 2009 (may not be properly precessed)
Skf2010 C j Skiff, B.A. ...................
Skf2010 +E+ private communication, 2010 (may not be properly precessed)
Skf2010 +Pa
Skf2011 C j Skiff, B.A. ...................
Skf2011 +E+ private communication, 2011 (may not be properly precessed)
Skf2011 +H+
Skf2011 +M+
Skf2011 +P+
Skf2011 +T
Skf2011b Pa j Skiff, B.A. ...................
Skf2011b +E+ Webb Soc., Double Star Circ. 19, 2011 (may not be properly precessed)
Skf2012 A j Skiff, B.A. ...................
Skf2012 +C private communication, 2012 (may not be properly precessed)
Skf2012 +E+
Skf2012 +H+
Skf2012 +P+
Skf2012 +T+
Skf2012b C j Skiff, B.A. ...................
Skf2012b private communication, 2012 (may not be properly precessed)
Skf2012b (measure calculated from component coords in Alcock et al., ApJ 562, 337, 2001) 2001ApJ...562..337A
Skf2012c Ci - Skiff, B.A. ...................
Skf2012c private communication, 2012 (may not be properly precessed)
Skf2012c (measure calculated from component coords in FLX2006) 2006ApJ...639..816E
Skf2012d Pa j Skiff, B.A. ...................
Skf2012d private communication, 2012 (may not be properly precessed)
Skf2012d (measure calculated from component coords in Fresneau et al., A&A 469, 1221, 2007) 2007A&A...469.1221F
Skf2012e C j Skiff, B.A. ...................
Skf2012e private communication, 2012 (may not be properly precessed)
Skf2012e (measure calculated from component coords in Slesnick et al. 2002) 2002ApJ...576..880S
Skf2012f C j Skiff, B.A. ...................
Skf2012f +H private communication, 2012 (may not be properly precessed)
Skf2012f (measure calculated from component coords in Romano et al., A&A 488, 1221, 2008) 2008A&A...488.1221R
Skf2012g C - Skiff, B.A. ...................
Skf2012g private communication, 2012 (may not be properly precessed)
Skf2012g (measure calculated from component coords in Trullols et al. 1997) 1997A&A...324..549T
Skf2012h C - Skiff, B.A. ...................
Skf2012h private communication, 2012 (may not be properly precessed)
Skf2012h (measure calculated from component coords in Herbig, ApJ 497, 736, 1998) 1998ApJ...497..736H
Skf2012i H - Skiff, B.A. ...................
Skf2012i private communication, 2012 (may not be properly precessed)
Skf2012i (measure calculated from component coords in Najita et al. 2000) 2000ApJ...541..977N
Skf2012j C j Skiff, B.A. ...................
Skf2012j private communication, 2012 (may not be properly precessed)
Skf2012j (measure calculated from component coords in Luhman et al. 2003) 2003ApJ...593.1093L
Skf2012k C - Skiff, B.A. ...................
Skf2012k private communication, 2012 (may not be properly precessed)
Skf2012k (measure calculated from component coords in Cohen et al. 2004) 2004AJ....127.1602C
Skf2012l C - Skiff, B.A. ...................
Skf2012l private communication, 2012 (may not be properly precessed)
Skf2012l (measure calculated from component coords in Littlefair et al, MNRAS 358,341,2005) 2005MNRAS.358..341L
Skf2012m H - Skiff, B.A. ...................
Skf2012m private communication, 2012 (may not be properly precessed)
Skf2012m (measure calculated from component coords in Lada et al., AJ 131, 1574, 2006) 2006ApJ...131.1574L
Skf2012n C - Skiff, B.A. ...................
Skf2012n private communication, 2012 (may not be properly precessed)
Skf2012n (measure calculated from component coords in Mayne et al. 2007) 2007MNRAS.375.1220M
Skf2012o E - Skiff, B.A. ...................
Skf2012o +E2 private communication, 2012 (may not be properly precessed)
Skf2012o (measure calculated from component coords in Poleski et al. 2011) 2011AcA....61..199P
Skf2012q C j Skiff, B.A. ...................
Skf2012q +E+ Webb Soc., Double Star Circ. 20, 2012 (may not be properly precessed)
Skf2012q +H+
Skf2012q +Mr
Skf2012q +P+
Skf2012q +T
Skf2013 A j Skiff, B.A. ...................
Skf2013 +C private communication, 2013 (may not be properly precessed)
Skf2013 +E+
Skf2013 +H+
Skf2013 +Ma
Skf2013 +P+
Skf2013 +T
Skf2013b C j Skiff, B.A. ...................
Skf2013b +E+ Webb Soc., Double Star Circ. 21, 2013 (may not be properly precessed)
Skf2013b +H+
Skf2013b +P+
Skf2013b +T+
Skf2013c E - Skiff, B.A. ...................
Skf2013c +Pa private communication, 2013 (may not be properly precessed)
Skf2013c (measure calculated from component coords in Galadi-Enriquez et al. 1998) 1998A&AS..131..239G
Skf2014 C j Skiff, B.A. ...................
Skf2014 +E+ private communication, 2014 (may not be properly precessed)
Skf2014 +H+
Skf2014 +P+
Skf2014b C j Skiff, B.A. ...................
Skf2014b +E+ Webb Soc., Double Star Circ. 22, 2014 (may not be properly precessed)
Skf2014b +H+
Skf2014b +M+
Skf2014b +P+
Skf2014b +T
Skf2014c E - Skiff, B.A. ...................
Skf2014c +Pa Webb Soc., Double Star Circ. 22, 2014 (may not be properly precessed)
Skf2014c (measure calculated from component coords in Galadi-Enriquez et al. 1998) 1998A&AS..131..239G
Skf2014d Pa w Skiff, B.A. ...................
Skf2014d Webb Soc., Double Star Circ. 22, 2014 (may not be properly precessed)
Skf2014d (measure calculated from component coords in Fresneau et al., A&A 469, 1221, 2007) 2007A&A...469.1221F
Skf2015 C j Skiff, B.A. ...................
Skf2015 +E+ private communication, 2015 (may not be properly precessed)
Skf2015 +H+
Skf2015 +P+
Skf2015 +T
Skf2015b C j Skiff, B.A. ...................
Skf2015b +E+ Webb Soc., Double Star Circ. 23, 40, 2015 (may not be properly precessed)
Skf2015b +Hw
Skf2015b +P+
Skf2015c C j Skiff, B.A. ...................
Skf2015c +E+ Webb Soc., Double Star Circ. 23, 49, 2015 (may not be properly precessed)
Skf2015c +H+
Skf2015c +P+
Skf2015c +T
Skf2015d C j Skiff, B.A. ...................
Skf2015d +E+ private communication, 2015 (list 38; may not be properly precessed)
Skf2015d +H+
Skf2015d +P+
Skf2015d +T
Skf2015e C j Skiff, B.A. ...................
Skf2015e +E+ private communication, 2015 (list 39; may not be properly precessed)
Skf2015e +H+
Skf2015e +P+
Skf2015e +T
Skf2016a C j Skiff, B.A. ...................
Skf2016a +E+ private communication, 2016 (list 40; may not be properly precessed)
Skf2016a +H+
Skf2016a +P+
Skf2016a +T
Skf2016b Pa j Skiff, B.A. (measure in Csr2016) ...................
Skf2016b +P Webb Soc., Double Star Circ. 24, 40, 2016
Skf2016b +E2
Skf2016b +Ht
Skf2016b +Eu
Skf2016b +C
Skf2016b +Hw
Skf2016b +Er
Skf2016c P+ j Skiff, B.A. ...................
Skf2016c +C Webb Soc., Double Star Circ. 24, 43, 2016
Skf2016c +E+
Skf2016c +H+
Skf2016c +P+
Skf2016c +T+
Skf2016d C j Skiff, B.A. ...................
Skf2016d +E+ private communication, 2016 (list 41; may not be properly precessed)
Skf2016d +H+
Skf2016d +P+
Skf2016d +T
Skf2016e C j Skiff, B.A. ...................
Skf2016e +E+ private communication, 2016 (14 June email; may not be properly precessed)
Skf2016f C - Skiff, B.A. ...................
Skf2016f +E+ private communication, 2016 (list 42; may not be properly precessed)
Skf2016f +H+
Skf2016f +P+
Skf2016f +T
Skf2016g C j Skiff, B.A. ...................
Skf2016g +E+ private communication, 2016 (list 43; may not be properly precessed)
Skf2016g +H+
Skf2016g +P+
Skf2016g +T
Skf2016h Hg - Skiff, B.A. ...................
Skf2016h private communication, 2016 (1 December email; may not be properly precessed)
Skf2016i Hg - Skiff, B.A. ...................
Skf2016i private communication, 2016 (20 December email; may not be properly precessed)
Skf2016j Hg - Skiff, B.A. ...................
Skf2016j private communication, 2016 (24 December email; may not be properly precessed)
Skf2017a C+ j Skiff, B.A. ...................
Skf2017a +H private communication, 2017 (13 January email; may not be properly precessed)
Skf2017b Hg - Skiff, B.A. ...................
Skf2017b private communication, 2017 (14 January email; may not be properly precessed)
Skf2017b
Skf2017c C+ j Skiff, B.A. ...................
Skf2017c +E+ private communication, 2017 (30 January email; may not be properly precessed)
Skf2017c +H+
Skf2017c +P
Skf2017d Hg - Skiff, B.A. ...................
Skf2017d private communication, 2017 (26 Febuary email; may not be properly precessed)
Skf2017e C+ j Skiff, B.A. ...................
Skf2017e +P private communication, 2017 (9 March email; may not be properly precessed)
Skf2017f E+ - Skiff, B.A. ...................
Skf2017f +H private communication, 2017 (24 May email; may not be properly precessed)
Skf2017g P+ u Skiff, B.A. ...................
Skf2017g +C+ Webb Soc., Double Star Circ. 25, 62, 2017
Skf2017g +E+
Skf2017g +H+
Skf2017g +T
Skf2017h Hg - Skiff, B.A. ...................
Skf2017h private communication, 2017 (24 June email; may not be properly precessed)
Skf2017i H+ w Skiff, B.A. ...................
Skf2017i +P+ private communication, 2017 (11 July email; may not be properly precessed)
Skf2017i +E+
Skf2017i +C
Skf2017j H+ w Skiff, B.A. ...................
Skf2017j +P+ private communication, 2017 (15 July emails; may not be properly precessed)
Skf2017j +E
Skf2017k C+ - Skiff, B.A. ...................
Skf2017k +E+ private communication, 2017 (17 July emails; may not be properly precessed)
Skf2017k +H
Skf2017l C+ - Skiff, B.A. ...................
Skf2017l +E+ private communication, 2017 (18 July emails; may not be properly precessed)
Skf2017l +H
Skf2017m P+ w Skiff, B.A. ...................
Skf2017m +E+ private communication, 2017 (20 July emails; may not be properly precessed)
Skf2017m +H+
Skf2017m +C
Skf2017n E+ - Skiff, B.A. ...................
Skf2017n +H private communication, 2017 (25 July emails; may not be properly precessed)
Skf2017o E+ w Skiff, B.A. ...................
Skf2017o +P+ private communication, 2017 (20 August emails; may not be properly precessed)
Skf2017o +C
Skf2017p E+ j Skiff, B.A. ...................
Skf2017p +P+ private communication, 2017 (2 October emails; may not be properly precessed)
Skf2017p +C+
Skf2017p +H
Skf2017q E+ w Skiff, B.A. ...................
Skf2017q +P+ private communication, 2017 (3 October emails; may not be properly precessed)
Skf2017q +H
Skf2018a E j Skiff, B.A. ...................
Skf2018a private communication, 2018 (18 January emails; may not be properly precessed)
Skf2018b E+ j Skiff, B.A. ...................
Skf2018b +C private communication, 2018 (10 February emails; may not be properly precessed)
Skf2018c E+ j Skiff, B.A. ...................
Skf2018c +C private communication, 2018 (16 February emails; may not be properly precessed)
Skf2018d E+ j Skiff, B.A. ...................
Skf2018d +C private communication, 2018 (6 March emails; may not be properly precessed)
Skf2018e E+ j Skiff, B.A. ...................
Skf2018e +not private communication, 2018 (15 March emails; may not be properly precessed)
Skf2018f not j Skiff, B.A. ...................
Skf2018f private communication, 2018 (9 March emails; may not be properly precessed)
Skf2018g Hg j Skiff, B.A. ...................
Skf2018g private communication, 2018 (20 March emails; may not be properly precessed)
Skf2018h H j Skiff, B.A. ...................
Skf2018h +E private communication, 2018 (6 April emails; may not be properly precessed)
Skf2018i H j Skiff, B.A. ...................
Skf2018i +P private communication, 2018 (19 October emails; may not be properly precessed)
Skf2018j H j Skiff, B.A. ...................
Skf2018j +P private communication, 2018 (24 November emails; may not be properly precessed)
Skf2018k H j Skiff, B.A. ...................
Skf2018k +P private communication, 2018 (19 December emails; may not be properly precessed)
Skf2019a H j Skiff, B.A. ...................
Skf2019a private communication, 2019 (16 July email; may not be properly precessed)
Skf2019b H j Skiff, B.A. ...................
Skf2019b private communication, 2019 (6 August email; may not be properly precessed)
Skf2019c j Skiff, B.A. ...................
Skf2019c private communication, 2019 (16 August email; may not be properly precessed)
Skf2019d H j Skiff, B.A. ...................
Skf2019d private communication, 2019 (11 September email; may not be properly precessed)
Skf2019e H+ j Skiff, B.A. ...................
Skf2019e +E private communication, 2019 (30 July email; may not be properly precessed)
Skf2019f C j Skiff, B.A. ...................
Skf2019f +E+ private communication, 2019 (list 44; may not be properly precessed)
Skf2019f +H+
Skf2019f +P+
Skf2019f +T
Skf2019g Z j Skiff, B.A. ...................
Skf2019g private communication, 2019 (8 October email)
Skf2020a C j Skiff, B.A. ...................
Skf2020a +E+ private communication, 2020 (9 March email; may not be properly precessed)
Skf2020a +H+
Skf2020a +P
Skf2020b C j Skiff, B.A. ...................
Skf2020b +E+ private communication, 2020 (list 45; may not be properly precessed)
Skf2020b +H+
Skf2020b +P+
Skf2020b +T
Skf2020c Hg j Skiff, B.A. ...................
Skf2020c private communication, 2020 (5 August email)
Skf2020d Hg+ j Skiff, B.A. ...................
Skf2020d +Ek private communication, 2020 (23 August email)
Skf2020e Hg j Skiff, B.A. ...................
Skf2020e private communication, 2020 (31 August email)
Skf2020f E Skiff, B.A. ...................
Skf2020f private communication, 2020 (22 November email)
Skf2021a Hg Skiff, B.A. ...................
Skf2021a private communication, 2021 (13 March email)
Skf2021b H+ Skiff, B.A. ...................
Skf2021b +E+ private communication, 2021 (15 November email)
Skf2021c Hg Skiff, B.A. ...................
Skf2021c private communication, 2021 (16 December email)
Skf2022a E Skiff, B.A. ...................
Skf2022a private communication, 2022 (12 September email)
Skf2022b Hg Skiff, B.A. ...................
Skf2022b private communication, 2022 (28 September email)
Skf2022c E Skiff, B.A. ...................
Skf2022c private communication, 2022 (17 October email)
Skf2022d E Skiff, B.A. ...................
Skf2022d private communication, 2022 (12 December email)
Skf2022e Hg Skiff, B.A. ...................
Skf2022e private communication, 2022 (19 December email)
Skf2023a Hg Skiff, B.A. ...................
Skf2023a private communication, 2023 (28 February email)
STTA (O. Struve DD - Appendix list) ...................
Stt1864 Ma - Struve, O. 1864MNRAS..24..149S
Stt1864 MNRAS 24, 149, 1864
Stt1866 orb - Struve, O. .
Stt1866 Bull. Imp. Acad. Sci. St. Petersburg, 1866
Stt1874 orb - Struve, O. .
Stt1874 Compte Rendus 79, 1467, 1874
Stt1875 orb - Struve, O. 1875MNRAS..35..367S
Stt1875 MNRAS 35, 367, 1875
Stt1878 Ma - Struve, O. 1878ObPul...9....1S
Stt1878 Pulkova Observations 9, 1, 1878
Stt1879A Ma - Struve, O. 1879Obs.....2..304G
Stt1879A cited by Gledhill (Obs 2, 304, 1879)
Stt1879B Ma - Struve, O. 1879Obs.....3..245G
Stt1879B cited by Gledhill (Obs 3, 245, 1879)
Stt1879C Ma - Struve, O. 1879Obs.....2..344G
Stt1879C cited by Gledhill (Obs 2, 344, 1879)
Stt1880A Ma - Struve, O. 1880Obs.....2..605H
Stt1880A cited by Hunt (Obs. 3, 605, 1880)
Stt1880B Ma - Struve, O. 1880Obs.....3..535G
Stt1880B cited by Gledhill (Obs 3, 535, 1880)
Stt1880C Ma - Struve, O. 1880MNRAS..40..497B
Stt1880C cited by Burnham (MNRAS 40, 497, 1880)
Stt1884A Ma - Struve, O. 1884AReg...22..216S
Stt1884A cited by Sadler (Astr. Register 22, 216, 1884)
Stt1893a Ma j Struve, O. 1893ObPul..10....1S
Stt1893a Pulkova Obs. Observations 10, 1, 1893
Stt1906A Ma - Struve, O. 1906MmRAS..56....1L
Stt1906A cited by Lewis (MemRAS 56, 1, 1906)
Stt1906B Ma j Struve, O. 1906QB821.B972.....
Stt1906B cited in BDS (Burnham Double Star Cat., 1906)
Stt1908A Ma - Struve, O. 1908MNRAS..68..465B
Stt1908A cited by Barnard (MNRAS 68, 465, 1908)
Stt1913A Ma - Struve, O. 1913QB811.B8.......
Stt1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Stt1914A Ma - Struve, O. 1914AN....198..107R
Stt1914A cited by Rabe (AN 198, 107, 1914)
Stt1932A Ma - Struve, O. 1932QB821.A43......
Stt1932A cited in ADS (Aitken Double Star Cat., 1932)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20520+4346 SKF2740 BC 2013 5 192 73.5 8.94 11.90 A3m V 205159.38+434524.2
20520+4346 SKF2740 BC 2015 6 192 73.4 8.94 11.90 A3m V 205159.38+434524.2

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

 
 
WDS 20520+4346 SKF 2740 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20520+4346 SKF 2740 BC : MEASURES
 
 
No records found.

 
 
WDS 20520+4346 : VIRTUAL EYEPIECE
 
 

20520+4346 STT 416A mag 8.64 Sp G8IV 20520+4346 SKF2740B sep 9.2 P.A. 119.30 mag 8.94 Sp A3m 20520+4346 SKF2740C sep 76.4 P.A. 182.30 mag 11.9 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 20520+4346 : ALADIN DSS IMAGE @ 20h 51m 59.38s +43° 45' 24.2"
 
 
 
 
WDS 20520+4346 SKF 2740 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20520+4346 SKF2740BC distance=0' 20520+4346 STT 416AB distance=1' 20535+4328 LDS2465 distance=24' 20501+4404 STT 595AB distance=28' 20501+4404 STG 9AC distance=28' 20501+4404 FYM 92AD distance=28' 20501+4404 FYM 92AE distance=28' 20501+4404 FYM 92AF distance=28' 20517+4317 LDS2461 distance=29' 20512+4415 CHN 31 distance=31' 20524+4314 LDS2462 distance=33' 20519+4309 GRV 389 distance=36' 20509+4421 CHN 30AB distance=38' 20509+4421 CHN 30Aa,Ab distance=38' 20506+4421 CHN 29 distance=39' 20532+4423 LSC 94 distance=41' 20553+4322 LDS2468 distance=43' 20559+4345 COU2543 distance=43' 20525+4430 BRT2279 distance=45' 20476+4347 CHN 28 distance=48' 20530+4258 COU2542 distance=49' 20565+4333 BRT1139 distance=50' 20473+4345 COU2425 distance=51' 20521+4438 HER 18 distance=53' 20568+4335 BRT1957 distance=53' 20470+4335 GRV 380AB distance=55' 20470+4335 GRV 380AC distance=55' 20474+4314 TDT2539 distance=60' 20538+4443 LDS5914 distance=61' 20564+4308 COU2544 distance=62' 20461+4353 GRV 378 distance=64' 20573+4319 ES 1450 distance=64' 20472+4427 COU2424 distance=67' 20513+4238 A 614 distance=68' 20461+4410 BRT2275 distance=69' 20508+4238 LDS2457 distance=69' 20455+4338 A 611 distance=71' 20568+4254 ENG 77BC distance=73' 20494+4452 TDS1103 distance=73' 20549+4451 LDS2466 distance=73' 20568+4254 ENG 77CD distance=73' 20567+4439 BRT2283 distance=73' 20584+4326 ES 1451 distance=74' 20578+4425 LDS2474 distance=74' 20568+4254 ENG 77AB distance=74' 20568+4254 ENG 77AC distance=74' 20452+4337 ES 1449 distance=74' 20556+4243 BRT2282 distance=75' 20558+4448 ES 674 distance=75' 20511+4459 LDS2459 distance=76' 20563+4447 ES 675BC distance=76' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 20520+4346 SKF2740 BC 192 73.4
Show 20520+4346 STT 416 AB 117 9.6 1
Show 20535+4328 LDS2465 41 12.1 24
Show 20501+4404 STT 595 AB 48 55.4 28
Show 20501+4404 STG 9 AC 83 102.7 28
Show 20501+4404 FYM 92 AD 242 51.8 28
Show 20501+4404 FYM 92 AE 190 35.2 28
Show 20501+4404 FYM 92 AF 80 46.9 28
Show 20517+4317 LDS2461 217 32.6 29
Show 20512+4415 CHN 31 47 6.7 31
Show 20524+4314 LDS2462 265 39.5 33
Show 20519+4309 GRV 389 190 61.9 36
Show 20509+4421 CHN 30 AB 92 2.7 38
Show 20509+4421 CHN 30 Aa,Ab 108 0.6 38
Show 20506+4421 CHN 29 52 5.3 39
Show 20532+4423 LSC 94 183 0.3 41
Show 20553+4322 LDS2468 107 60.0 43
Show 20559+4345 COU2543 222 1.6 43
Show 20525+4430 BRT2279 5 4.5 45
Show 20476+4347 CHN 28 57 5.0 48
Show 20530+4258 COU2542 199 0.1 49
Show 20565+4333 BRT1139 175 3.6 50
Show 20473+4345 COU2425 58 0.2 51
Show 20521+4438 HER 18 85 60.7 53
Show 20568+4335 BRT1957 177 1.1 53
Show 20470+4335 GRV 380 AB 16 21.4 55
Show 20470+4335 GRV 380 AC 312 44.6 55
Show 20474+4314 TDT2539 77 0.5 60
Show 20538+4443 LDS5914 124 6.2 61
Show 20564+4308 COU2544 160 0.4 62
Show 20461+4353 GRV 378 135 35.3 64
Show 20573+4319 ES 1450 162 4.7 64
Show 20472+4427 COU2424 255 0.5 67
Show 20513+4238 A 614 333 1.5 68
Show 20461+4410 BRT2275 10 2.8 69
Show 20508+4238 LDS2457 106 5.1 69
Show 20455+4338 A 611 176 0.3 71
Show 20568+4254 ENG 77 BC 69 102.7 73
Show 20494+4452 TDS1103 200 0.8 73
Show 20549+4451 LDS2466 287 4.8 73
Show 20568+4254 ENG 77 CD 356 92.9 73
Show 20567+4439 BRT2283 339 6.0 73
Show 20584+4326 ES 1451 101 8.6 74
Show 20578+4425 LDS2474 235 14.5 74
Show 20568+4254 ENG 77 AB 328 100.0 74
Show 20568+4254 ENG 77 AC 17 125.8 74
Show 20452+4337 ES 1449 57 6.7 74
Show 20556+4243 BRT2282 276 2.5 75
Show 20558+4448 ES 674 94 5.6 75
Show 20511+4459 LDS2459 228 43.7 76
Show 20563+4447 ES 675 BC 108 3.7 76

 
 
WDS 20520+4346 : COMPONENTS
 
 
  A B
B pa=119.3°
sep=9.19"
 
C pa=182.3°
sep=76.36"
pa=188.8°
sep=72.65"
 
 
20520+4346 A
 
 
Name HD 198896 Coord arcsec 2000 205158.64+434528.7 Mag 8.64 Spectral class G8IV (yellow)
PmRA 6.00 PmDE -3.0 HIP 102990 Tycho2 3179-01317-1
HD 198896 BD BD+43 3746
Tycho2
Tycho2 3179-01317-1 Pflag RAmdeg 312.99433176 DEmdeg 43.75797842
PmRA 6.8 PmDE -2.1 E RAmdeg 10 E DEmdeg 10
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.07 EpDEm 1991.05
Num 3 Q RAmdeg 0.4 Q DEmdeg 1.1 Q pmRA 0.4
Q pmDE 1.2 BTmag 9.946 E BTmag 0.026 VTmag 8.643
E VTmag 0.014 Prox 91 TYC T HIP 102990
CCDM A RAdeg 312.99430972 DEdeg 43.75798333 EpRA 1990 1.62
EpDE 1990 1.61 E RAdeg 9.9 E DEdeg 9.5 Posflg
Corr -0.1
Hipparcos
Catalog H HIP 102990 Proxy H RAhms 20 51 58.63
DEdms +43 45 28.7 Vmag 7.91 VarFlag R Vmag H
RAdeg 312.994 DEdeg 43.758 AstroRef A Plx 0.33
CCDM 20520+4345 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 121 Rho 9.084 HD 198896 BD BD+43 3746
CD CP Dm number +43 3746 VIred 0.68
SpType Am + K0 R SpType Coord arcsec 2000 205158.63+434528.7
Hipparcos 2
HIP 102990 Sn 15 So 3 Nc 2
RArad 5.4627812182 DErad 0.7637208237 Plx 2.75 PmRA 5.25
PmDE -3.96 E RArad 1.29 E DErad 1.63 E Plx 1.85
E pmRA 1.43 E pmDE 1.54 Hpmag 8.0423 E Hpmag 0.0011
SHp 0.016 VA 0 BV 0.615 E BV 0.012
VI 0.68
 
 
20520+4346 B
 
 
Coord arcsec 2000 205159.38+434524.2 Coord calc 205159.38+434524.2 Mag 8.94 Spectral class A3m (white)
PmRA 29.00 PmDE 5.0 HIP 102990 Tycho2 3179-01479-1
Calc delta mag 0.3
Tycho2
Tycho2 3179-01479-1 Pflag RAmdeg 312.99740914 DEmdeg 43.75671315
PmRA 28.1 PmDE 6.2 E RAmdeg 9 E DEmdeg 8
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.12 EpDEm 1991.26
Num 3 Q RAmdeg 0.1 Q DEmdeg 0.1 Q pmRA 0.1
Q pmDE 0.2 BTmag 9.113 E BTmag 0.018 VTmag 8.939
E VTmag 0.016 Prox 91 TYC T HIP 102990
CCDM B RAdeg 312.99731889 DEdeg 43.75669861 EpRA 1990 1.62
EpDE 1990 1.62 E RAdeg 8.8 E DEdeg 8.4 Posflg
Corr -0.1
Hipparcos
Catalog H HIP 102990 Proxy H RAhms 20 51 58.63
DEdms +43 45 28.7 Vmag 7.91 VarFlag R Vmag H
RAdeg 312.994 DEdeg 43.758 AstroRef A Plx 0.33
CCDM 20520+4345 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 121 Rho 9.084 HD 198896 BD BD+43 3746
CD CP Dm number +43 3746 VIred 0.68
SpType Am + K0 R SpType Coord arcsec 2000 205158.63+434528.7
Hipparcos 2
HIP 102990 Sn 15 So 3 Nc 2
RArad 5.4627812182 DErad 0.7637208237 Plx 2.75 PmRA 5.25
PmDE -3.96 E RArad 1.29 E DErad 1.63 E Plx 1.85
E pmRA 1.43 E pmDE 1.54 Hpmag 8.0423 E Hpmag 0.0011
SHp 0.016 VA 0 BV 0.615 E BV 0.012
VI 0.68
 
 
20520+4346 C
 
 
Coord arcsec 2000 205158.35+434412.4 Mag 11.9 PmRA 29.00 PmDE 5.0
Tycho2 3179-00522-1 Calc delta mag 3.26 Calc coord yes
Tycho2
Tycho2 3179-00522-1 Pflag RAmdeg 312.99151182 DEmdeg 43.73680084
PmRA 31.6 PmDE 5.6 E RAmdeg 74 E DEmdeg 80
E pmRA 2.0 E pmDE 1.9 EpRAm 1974.27 EpDEm 1967.79
Num 3 Q RAmdeg 0.0 Q DEmdeg 0.8 Q pmRA 0.1
Q pmDE 0.8 BTmag 12.485 E BTmag 0.191 VTmag 11.907
E VTmag 0.165 Prox 733 TYC HIP
CCDM RAdeg 312.99141056 DEdeg 43.73678778 EpRA 1990 1.68
EpDE 1990 1.61 E RAdeg 82.2 E DEdeg 91.9 Posflg
Corr 0.1