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Doubles in session


Current system
19501+4748
AG 240
HD 187877


Nearby doubles
6' : 19507+4748
KOI 340AB

7' : 19497+4743
DEA 189

21' : 19502+4728
JKA 91

29' : 19513+4723
HDS2828

29' : 19489+4723
KOI2390AB

29' : 19480+4808
KOI 753

30' : 19476+4803
KOI4405AB

30' : 19472+4747
KOI5803

32' : 19530+4736
KOI 251AB

33' : 19516+4720
KOI4754

33' : 19491+4819
KOI 291

34' : 19500+4821
DEA 363

34' : 19473+4806
KOI 174

34' : 19535+4749
KOI7351

35' : 19534+4740
KOI 106AB

36' : 19478+4815
KOI4149

37' : 19496+4825
KOI7397

38' : 19537+4757
KOI2317

39' : 19473+4814
KOI 17

39' : 19489+4712
DEA 432

39' : 19506+4710
KOI1784

39' : 19463+4745
KOI7340

39' : 19520+4715
KOI 729

40' : 19473+4721
KOI1174AB

41' : 19497+4708
KOI 726

42' : 19474+4819
KOI7389



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.

19501+4748 AG 240 (HD 187877)

 
 
19h 50m 07.05s +47° 48' 23.3" P.A. 255.00 sep 14.6 mag 9.63,9.74 Sp A7+A3
 
 
Coord 2000 19501+4748 Discov num AG  240 Comp Coord arcsec 2000 19 50 07.05 +47 48 23.3
Date first 1898 Date last 2015 Obs 22
Pa first 257 Pa last 255.2 P.A. Now (θ) 255.2°
Sep first 14.6 Sep last 14.567 Sep. Now (ρ) 14.567"
Mag pri 9.63 Mag sec 9.74 delta mag (ΔM) 0.11 Spectral class A7+A3 (white/white)
Pri motion ra -003 Sec motion ra -003
Pri motion dec -017 Sec motion dec -017
Notes T (Parallax indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 187877 Constellation Cygnus SAO 48886 Tycho2 3561-02132-1
Gaia DR2 2086413306165877376 HD 187877
 
 
WDS 19501+4748 AG 240 (HD 187877) : NOTES
 
 
discov_num notes refcode
AG 240 JKA 89. KIC 10616138/10616124.
 
 
REFERENCES
 
 
refcode metd author reference
AG T Astronomische Gesellschaft (see also ref codes KR and WFD)
AG (Mean aperture 8in given in catalog for all AG_ codes)
AG_1903A T j AG - Leipzig 1903LicOB...2..115H
AG_1903A cited by Hussey (Lick Obs. Bull. 2, 115, 1903)
AG_1906A T - AG - Leipzig 1906QB821.B972.....
AG_1906A +Ma cited in BDS (Burnham Double Star Cat.), 1906
AG_1906B T - AG - Leipzig 1906MmRAS..56....1L
AG_1906B cited by Lewis (MemRAS 56, 1, 1906)
AG_1906C T - AG - Lund 1906QB821.B972.....
AG_1906C cited in BDS (Burnham Double Star Cat.), 1906
AG_1906D T - AG - Strasbourg 1906QB821.B972.....
AG_1906D cited by Burnham (Burnham Double Star Cat.), 1906
AG_1913A T - AG - Albany 1913QB811.B8.......
AG_1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913B T - AG - Berlin 1913QB811.B8.......
AG_1913B cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913C T - AG - Bonn 1913QB811.B8.......
AG_1913C cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913D T - AG - Cambridge, England 1913QB811.B8.......
AG_1913D cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913E T - AG - Christiania 1913QB811.B8.......
AG_1913E cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913F T - AG - Harvard 1913QB811.B8.......
AG_1913F cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913G T - AG - Helsingfors 1913QB811.B8.......
AG_1913G cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913H T - AG - Leiden 1913QB811.B8.......
AG_1913H cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913I T - AG - Leipzig 1913QB811.B8.......
AG_1913I cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913J T - AG - Lund 1913QB811.B8.......
AG_1913J cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913K T - AG - Strasbourg 1913QB811.B8.......
AG_1913K cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913L T - AG - Wien-Ottakring 1913QB811.B8.......
AG_1913L cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1913M T - AG - Oxford 1913QB811.B8.......
AG_1913M cited by Burnham (Carnegie Inst. Wash. #168, 1913)
AG_1932A T - AG - Leipzig 1932QB821.A43......
AG_1932A cited in ADS (Aitken Double Star Cat.), 1932
AG_1932B T - AG - Berlin 1932QB821.A43......
AG_1932B cited in ADS (Aitken Double Star Cat.), 1932
AG_1932C T - AG - Helsingfors 1932QB821.A43......
AG_1932C cited in ADS (Aitken Double Star Cat.), 1932
AG_1932D T - AG - Bonn 1932QB821.A43......
AG_1932D cited in ADS (Aitken Double Star Cat.), 1932
AG_1932E T - AG - Lund 1932QB821.A43......
AG_1932E cited in ADS (Aitken Double Star Cat.), 1932
AG_1932F T - AG - Cambridge, England 1932QB821.A43......
AG_1932F cited in ADS (Aitken Double Star Cat.), 1932
AG_1932G T - AG - Oxford 1932QB821.A43......
AG_1932G cited in ADS (Aitken Double Star Cat.), 1932
AG_2002A T - AG 2002yCat.1275....0D
AG_2002A cited in CCDM
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19501+4748 AG 240 2005 13 257 13.8 9.63 9.74 A2 D 195007.05+474823.3
19501+4748 AG 240 2013 15 255 14.5 9.63 9.74 A2 V 195007.05+474823.3
19501+4748 AG 240 2015 18 255 14.5 9.63 9.74 A2 VW 195007.05+474823.3

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

 
 
WDS 19501+4748 AG 240 (HD 187877) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 21/09/21 daedalus1 mean difficulty separated     Seeing: Pickering 8, Transparency: NELM 4.8, Measures: theta 256, rho 14".29

 
 
WDS 19501+4748 AG 240 (HD 187877) : MEASURES
 
 
No records found.

 
 
WDS 19501+4748 (HD 187877) : VIRTUAL EYEPIECE
 
 

19501+4748 AG 240A mag 9.63 Sp A7 19501+4748 AG 240B sep 10.2 P.A. 248.50 mag 9.74 Sp A3 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 19501+4748 (HD 187877) : ALADIN DSS IMAGE @ 19h 50m 07.05s +47° 48' 23.3"
 
 
 
 
WDS 19501+4748 AG 240 (HD 187877) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19501+4748 AG 240 distance=0' 19507+4748 KOI 340AB distance=6' 19497+4743 DEA 189 distance=7' 19502+4728 JKA 91 distance=21' 19513+4723 HDS2828 distance=29' 19489+4723 KOI2390AB distance=29' 19489+4723 KOI2390AC distance=29' 19489+4723 KOI2390AD distance=29' 19480+4808 KOI 753 distance=29' 19476+4803 KOI4405AB distance=30' 19476+4803 KOI4405AC distance=30' 19472+4747 KOI5803 distance=30' 19530+4736 KOI 251AB distance=32' 19530+4736 KOI 251AC distance=32' 19516+4720 KOI4754 distance=33' 19491+4819 KOI 291 distance=33' 19500+4821 DEA 363 distance=34' 19473+4806 KOI 174 distance=34' 19535+4749 KOI7351 distance=34' 19534+4740 KOI 106AB distance=35' 19534+4740 KOI 106AC distance=35' 19534+4740 KOI 106AD distance=35' 19534+4740 KOI 106AE distance=35' 19478+4815 KOI4149 distance=36' 19496+4825 KOI7397 distance=37' 19537+4757 KOI2317 distance=38' 19473+4814 KOI 17 distance=39' 19489+4712 DEA 432 distance=39' 19506+4710 KOI1784 distance=39' 19463+4745 KOI7340 distance=39' 19520+4715 KOI 729 distance=39' 19473+4721 KOI1174AB distance=40' 19473+4721 KOI1174AC distance=40' 19473+4721 KOI1174AD distance=40' 19473+4721 KOI1174AE distance=40' 19497+4708 KOI 726 distance=41' 19474+4819 KOI7389 distance=42' 19512+4706 KOI1080 distance=44' 19457+4749 CBL 79 distance=45' 19468+4720 KOI1152 distance=45' 19533+4717 KOI 730 distance=45' 19534+4820 KOI7390 distance=46' 19472+4714 KOI4768 distance=46' 19546+4743 KOI3059 distance=46' 19460+4729 KOI3991 distance=46' 19538+4816 DEA 428 distance=47' 19545+4802 DEA 351 distance=47' 19465+4717 KOI4544 distance=48' 19496+4701 KOI5762 distance=49' 19519+4833 KOI 170 distance=49' 19548+4756 DEA 217 distance=49' 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 19501+4748 AG 240 255 14.6
Show 19507+4748 KOI 340 AB 57 5.3 6
Show 19497+4743 DEA 189 156 8.9 7
Show 19502+4728 JKA 91 297 31.7 21
Show 19513+4723 HDS2828 166 0.2 29
Show 19489+4723 KOI2390 AB 119 0.9 29
Show 19489+4723 KOI2390 AC 119 4.5 29
Show 19489+4723 KOI2390 AD 236 5.9 29
Show 19480+4808 KOI 753 200 3.7 29
Show 19476+4803 KOI4405 AB 250 3.0 30
Show 19476+4803 KOI4405 AC 201 3.9 30
Show 19472+4747 KOI5803 183 2.7 30
Show 19530+4736 KOI 251 AB 123 3.6 32
Show 19530+4736 KOI 251 AC 347 4.8 32
Show 19516+4720 KOI4754 261 3.7 33
Show 19491+4819 KOI 291 317 0.1 33
Show 19500+4821 DEA 363 248 16.9 34
Show 19473+4806 KOI 174 77 0.6 34
Show 19535+4749 KOI7351 85 3.9 34
Show 19534+4740 KOI 106 AB 251 2.1 35
Show 19534+4740 KOI 106 AC 143 5.3 35
Show 19534+4740 KOI 106 AD 130 5.5 35
Show 19534+4740 KOI 106 AE 219 3.9 35
Show 19478+4815 KOI4149 65 1.6 36
Show 19496+4825 KOI7397 56 3.8 37
Show 19537+4757 KOI2317 111 1.5 38
Show 19473+4814 KOI 17 41 4.1 39
Show 19489+4712 DEA 432 18 24.8 39
Show 19506+4710 KOI1784 291 0.3 39
Show 19463+4745 KOI7340 50 2.8 39
Show 19520+4715 KOI 729 27 2.2 39
Show 19473+4721 KOI1174 AB 238 5.1 40
Show 19473+4721 KOI1174 AC 234 0.7 40
Show 19473+4721 KOI1174 AD 5 3.1 40
Show 19473+4721 KOI1174 AE 317 3.5 40
Show 19497+4708 KOI 726 30 3.4 41
Show 19474+4819 KOI7389 291 1.8 42
Show 19512+4706 KOI1080 214 3.2 44
Show 19457+4749 CBL 79 263 19.2 45
Show 19468+4720 KOI1152 7 0.5 45
Show 19533+4717 KOI 730 237 2.0 45
Show 19534+4820 KOI7390 210 3.2 46
Show 19472+4714 KOI4768 160 1.3 46
Show 19546+4743 KOI3059 304 3.6 46
Show 19460+4729 KOI3991 112 0.2 46
Show 19538+4816 DEA 428 181 24.4 47
Show 19545+4802 DEA 351 49 15.4 47
Show 19465+4717 KOI4544 60 3.8 48
Show 19496+4701 KOI5762 95 0.2 49
Show 19519+4833 KOI 170 161 3.2 49
Show 19548+4756 DEA 217 356 9.9 49

 
 
WDS 19501+4748 : COMPONENTS
 
 
  A
B pa=248.5°
sep=10.16"
 
 
19501+4748 A
 
 
Componente originario normalizzato AB Name HD 187877 Coord arcsec 2000 195007.05+474823.3 Mag 9.63
Spectral class A7 (white) PmRA -3.00 PmDE -17.0 SAO 48886
Tycho2 3561-02132-1 HD 187877 DM BD+47 2933
Tycho2
Tycho2 3561-02132-1 Pflag RAmdeg 297.52939187 DEmdeg 47.80647591
PmRA -3.3 PmDE -16.4 E RAmdeg 16 E DEmdeg 16
E pmRA 1.5 E pmDE 1.5 EpRAm 1990.15 EpDEm 1990.13
Num 5 Q RAmdeg 0.9 Q DEmdeg 1.1 Q pmRA 0.9
Q pmDE 1.1 BTmag 9.983 E BTmag 0.026 VTmag 9.631
E VTmag 0.026 Prox 145 TYC T HIP
CCDM RAdeg 297.52940361 DEdeg 47.80651417 EpRA 1990 1.58
EpDE 1990 1.58 E RAdeg 16.4 E DEdeg 16.1 Posflg
Corr 0.1
SAO
SAO 48886 DelFlag RA1950 PmRA1950 0.0013
DE1950 PmDE1950 -0.02 Vmag 9 SpType K0
Double code Source 3 CatNum 1486 DM BD+47 2933
DMcomp A BDsup HD 187877 M HD 1
GC RA1950rad 5.18643939 DE1950rad 0.83215219 PmRA2000 0.0017
PmDE2000 -0.022
CCDM
Ccdm 19501+4748 RComp Comp A Note1
Note2 Discov num DRAs 1.06 DDEs 24.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 10.0 Sp A2 PmNote *
PmRA 2 PmDE 5 Dm number +47 2933 Cat1 BD
Name2 +47 1486 Cat2 AGK2/3 HD 187877 M HD
ADS BDS B 9683 M ADS BDS N IDS IDS 19472N4733A
HIC
 
 
19501+4748 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 195006.11+474819.6 Mag 9.74 Spectral class A3 (white)
PmRA -3.00 PmDE -17.0 Tycho2 3561-02133-1 Calc delta mag 0.11
Calc coord yes
Tycho2
Tycho2 3561-02133-1 Pflag RAmdeg 297.52358203 DEmdeg 47.80545081
PmRA -1.2 PmDE -18.8 E RAmdeg 16 E DEmdeg 16
E pmRA 1.8 E pmDE 1.8 EpRAm 1990.72 EpDEm 1990.73
Num 3 Q RAmdeg 0.8 Q DEmdeg 0.5 Q pmRA 0.8
Q pmDE 0.5 BTmag 9.927 E BTmag 0.027 VTmag 9.740
E VTmag 0.028 Prox 145 TYC T HIP
CCDM RAdeg 297.52358611 DEdeg 47.80549472 EpRA 1990 1.59
EpDE 1990 1.57 E RAdeg 16.4 E DEdeg 16.2 Posflg
Corr 0.1
CCDM
Ccdm 19501+4748 RComp Comp B Note1
Note2 Discov num AG 240 DRAs -0.34 DDEs 20.6
R dRAs 91 Year 1900 Theta 256 Rho 14.6
Obs 5 Vmag 10.1 Sp PmNote *
PmRA 2 PmDE 5 Dm number Cat1
Name2 +47 1485 Cat2 AGK2/3 HD M HD
ADS BDS B 9683 M ADS BDS N IDS IDS 19472N4733B
HIC