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Current system
18551+1644
WFC 216
HD 175512


Nearby doubles
28' : 18567+1657
BPM 899

29' : 18561+1709
BPM 894

32' : 18573+1644
BPM 903

32' : 18564+1710
BPM 897

33' : 18551+1717
COU 721AB

34' : 18535+1619
HEI 263

37' : 18525+1644
BPM 875

40' : 18539+1719
LDS5868

44' : 18521+1635
BPM 871

45' : 18582+1644
BPM 911

47' : 18583+1654
BPMA 72

50' : 18520+1705
COU 720

51' : 18573+1724
BPM 904

52' : 18586+1653
BPM 916

52' : 18583+1705
BPM 912

53' : 18565+1555
J 1278AB

54' : 18515+1700
BPMA 65

54' : 18586+1703
BPMA 73

55' : 18533+1557
BPM 879

55' : 18568+1733
BPM 901

55' : 18582+1614
RAO 403

59' : 18533+1737
BPM 878

59' : 18582+1722
HO 91AB

60' : 18577+1731
BPM 908

63' : 18566+1545
BPM 898

65' : 18569+1546
L 42



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.

18551+1644 WFC 216 (HD 175512)

 
 
18h 55m 04.26s +16° 44' 20.3" P.A. 88.00 sep 12.0 mag 9.07,9.55 Sp A2
 
 
Coord 2000 18551+1644 Discov num WFC 216 Comp Coord arcsec 2000 18 55 04.26 +16 44 20.3
Date first 1896 Date last 2016 Obs 18
Pa first 92 Pa last 88 P.A. Now (θ) 88°
Sep first 12.4 Sep last 12.031 Sep. Now (ρ) 12.031"
Mag pri 9.07 Mag sec 9.55 delta mag (ΔM) 0.48 Spectral class A2 (white)
Pri motion ra +000 Sec motion ra +000
Pri motion dec -016 Sec motion dec -011
Notes
rPM=0.312
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 175512 Constellation Hercules SAO 104255 Tycho2 1584-03164-1
Gaia DR2 4511094899382630144 HD 175512 DM BD+16 3666
 
 
WDS 18551+1644 WFC 216 (HD 175512) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
WFC (Washington Fundamental Cat. - astrographs)
WFC1939 Pa - Schlesinger, F. & Barney, I. 1939TOYal..11....1S
WFC1939 Trans. Astron. Obs. Yale Univ., 11, 1, 1939 (-10 to -14 deg zones)
WFC1940a Pa - Schlesinger, F. & Barney, I. 1940TOYal..12a...1S
WFC1940a Trans. Astron. Obs. Yale Univ., 12a, 1, 1940 (-14 to -18 deg zones)
WFC1940b Pa - Schlesinger, F. & Barney, I. 1940TOYal..12b...1S
WFC1940b Trans. Astron. Obs. Yale Univ., 12b, 1, 1940 (-18 to -20 deg zones)
WFC1943a Pa - Schlesinger, F. & Barney, I. 1943TOYal..13a...1S
WFC1943a Trans. Astron. Obs. Yale Univ., 13a, 1, 1943 (-20 to -22 deg zones)
WFC1943b Pa - Schlesinger, F. & Barney, I. 1943TOYal..13b...1S
WFC1943b Trans. Astron. Obs. Yale Univ., 13b, 1, 1943 (-27 to -30 deg zones)
WFC1943c Pa - Schlesinger, F. & Barney, I. 1943TOYal..14....1S
WFC1943c Trans. Astron. Obs. Yale Univ., 14, 1, 1943 (-22 to -27 deg zones)
WFC1945a Pa - Barney, I. 1945TOYal..16....1B
WFC1945a Trans. Astron. Obs. Yale Univ., 16, 1, 1945 (-06 to -10 deg zones)
WFC1945b Pa - Barney, I. 1945TOYal..17....1B
WFC1945b Trans. Astron. Obs. Yale Univ., 17, 1, 1945 (-02 to -06 deg zones)
WFC1947 Pa - Barney, I. 1947TOYal..18....1B
WFC1947 Trans. Astron. Obs. Yale Univ., 18, 1, 1947 (+15 to +20 deg zones)
WFC1948 Pa - Barney, I. 1948TOYal..19....1B
WFC1948 Trans. Astron. Obs. Yale Univ., 19, 1, 1948 (+09 to +15 deg zones)
WFC1949 Pa - Barney, I. 1949TOYal..20....1B
WFC1949 Trans. Astron. Obs. Yale Univ., 20, 1, 1949 (+01 to +05 deg zones)
WFC1950a Pa - Baillaud, J. .
WFC1950a Paris Obs., 1950 (+17 to +25 deg zones)
WFC1950b Pa - Barney, I. 1950TOYal..21....1B
WFC1950b Trans. Astron. Obs. Yale Univ., 21, 1, 1950 (+01 to -02 deg zones)
WFC1950c Pa - Barney, I. 1950TOYal..22A...1B
WFC1950c Trans. Astron. Obs. Yale Univ., 22, 1, 1950 (+05 to +09 deg zones)
WFC1953 Pa - Barney, I. 1953TOYal..24....1B
WFC1953 Trans. Astron. Obs. Yale Univ., 24, 1, 1954 (+25 to +30 deg zones)
WFC1954a Pa - Jackson, J. & Stoy R.H. 1954AnCap..17.....J
WFC1954a Ann. Cape Obs. London 17, 1954
WFC1954a Cape Photographic Catalogue for 1950.0., Vol. 17: Zone -30 deg to -35 deg
WFC1954b Pa - Jackson, J. & Stoy R.H. 1954AnCap..18.....J
WFC1954b Ann. Cape Obs. London 18, 1954
WFC1954b Cape Photographic Catalogue for 1950.0., Vol. 18: Zone -35 deg to -40 deg
WFC1954c Pa - Barney, I. 1954TOYal..25....1B
WFC1954c Trans. Astron. Obs. Yale Univ., 25, 1, 1954 (+20 to +25 deg zones)
WFC1954d Pa - Barney, I., Hoffleit, D., & Jones, R.B. 1954TOYal..26....1B
WFC1954d Trans. Astron. Obs. Yale Univ., 26, 1, 1954 (+85 to +90 deg zones)
WFC1955 Pa - Jackson, J. & Stoy R.H. 1955AnCap..19.....J
WFC1955 Ann. Cape Obs. London 19, 1955
WFC1955 Cape Photographic Catalogue for 1950.0., Vol. 19: Zone -52 deg to -56 deg
WFC1958a Pa - Schorr, R. & Kohlschuetter, A. .
WFC1958a AGK2 Cat. North of -2.5 deg, Vol. 1-15, 1958 (Bergedorf)
WFC1958b Pa - Schorr, R. & Kohlschuetter, A. .
WFC1958b AGK2 Cat. North of -2.5 deg, Vol. 1-15, 1958 (Bonn)
WFC1958c Pa - Jackson, J. & Stoy R.H. 1958AnCap..20..155J
WFC1958c Ann. Cape Obs. London, 20, 155, 1958
WFC1958c Cape Photographic Catalogue for 1950.0. Vol. 20: Zones -56 to -60 deg
WFC1958d Pa - Jackson, J. & Stoy R.H. 1958AnCap..20..155J
WFC1958d Ann. Cape Obs., London, 20, 155, 1958
WFC1958d Cape Photographic Catalogue for 1950.0. Vol. 20: Zones -60 to -64 deg
WFC1959a Pa - Barney, I., Hoffleit, D., & Jones, R.B. 1959TOYal..26....1B
WFC1959a Trans. Astron. Obs. Yale Univ., 26, 1, 1959 (+50 to +55 deg zones)
WFC1959b Pa - Barney, I., Hoffleit, D., & Jones, R.B. 1959TOYal..27....1B
WFC1959b Trans. Astron. Obs. Yale Univ., 27, 1, 1959 (+55 to +60 deg zones)
WFC1966a Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966a Ann. Cape Obs. London, 21, 1966
WFC1966a Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -64 to -68 deg
WFC1966b Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966b Ann. Cape Obs. London, 21, 1966
WFC1966b Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -68 to -72 deg
WFC1966c Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966c Ann. Cape Obs. London, 21, 1966
WFC1966c Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -72 to -76 deg
WFC1966d Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966d Ann. Cape Obs. London, 21, 1966
WFC1966d Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -76 to -80 deg
WFC1967 Pa - Hoffleit, D. 1967TOYal..28....1H
WFC1967 Trans. Astron. Obs. Yale Univ., 28, 1, 1967 (-30 to -35 deg zones)
WFC1968a Pa - Stoy R.H. 1968AnCap..22..125S
WFC1968a Ann. Cape Obs., London, 22, 125, 1968
WFC1968a Cape Photographic Catalogue for 1950.0. Vol. 22: Zones -80 to -89 deg
WFC1968b Pa - Hoffleit, D. 1968TOYal..29....1H
WFC1968b Trans. Astron. Obs. Yale Univ., 29, 1, 1968 (-35 to -40 deg zones)
WFC1970 Pa - Hoffleit, D., Eckert, D., Lu, P., & Paranya, K. 1970TOYal..30....1H
WFC1970 Trans. Astron. Obs. Yale Univ., 30, 1, 1970 (-40 to -50 deg zones)
WFC1971 Pa - Lu, P.K. 1971TOYal..31....1L
WFC1971 Trans. Astron. Obs. Yale Univ., 31, 1, 1971 (-70 to -90 deg zones)
WFC1975 Pa - Dieckvoss, W. .
WFC1975 AGK3 Cat. North of -2.5 deg dec, Vol. 1-8, 1975
WFC1983a Pa - Eichhorn, H., Googe, W.D., Lukac, C.F., & Murphy, J.K. 1983AJ.....88..546E
WFC1983a AJ 88, 546, 1983 (Sydney Obs. -48 to -54 deg zones)
WFC1983b Pa - King, D.S. & Lomb, N.R. 1983RSNSW.116...53K
WFC1983b Journal & Proc., Royal Soc. New South Wales 116, 53-70, 1983
WFC1983b (Sydney Obs. -51 to -63.5 deg zones)
WFC1983c Pa - Fallon, F.W. & Hoffleit, D. 1983TrAOY..32....1F
WFC1983c Trans. Astron. Obs. Yale Univ., 32, 1, 1983 (-60 to -70 deg zones)
WFC1992 Pa - Zacharias, N., de Vegt, C., Nicholson, W., & Penston, M.J. 1992A&A...254..397Z
WFC1992 A&A 254, 397, 1992 (CPC2)
WFC1994 Pa - Bystrov, N.F., Polojentsev, D.D, Potter, H.I., Yagudin, L.I., & Zallez, R.F. 1994BICDS..44....3B
WFC1994 Bull. Inf. CDS 44, 3, 1994 (FOKAT)
WFC1998 Pa j Urban, S.E., Corbin, T.E., Wycoff, G.L., Martin, J.C., Jackson, E.S., 1998AJ....115.1212U
WFC1998 Zacharias, M.I., & Hall, D.M.
WFC1998 AJ 115, 1212, 1998 (Astrographic Cat. 2000)
WFC1999 Pa - Zacharias, N. & Zacharias, M.I. 1999AJ....118.2503Z
WFC1999 AJ 118, 2503, 1999
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18551+1644 WFC 216 2004 7 89 11.9 9.07 9.55 D 185504.26+164420.3
18551+1644 WFC 216 2010 11 89 11.5 9.07 9.55 A2 185504.26+164420.3
18551+1644 WFC 216 2015 12 88 11.9 9.07 9.55 A2 185504.26+164420.3
18551+1644 WFC 216 2016 13 89 12.0 9.07 9.55 A2 185504.26+164420.3

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

 
 
WDS 18551+1644 WFC 216 (HD 175512) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18551+1644 WFC 216 (HD 175512) : MEASURES
 
 
No records found.

 
 
WDS 18551+1644 (HD 175512) : VIRTUAL EYEPIECE
 
 

18551+1644 WFC 216A mag 9.07 Sp A2 18551+1644 WFC 216B sep 11.5 P.A. 87.90 mag 9.55 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18551+1644 (HD 175512) : ALADIN DSS IMAGE @ 18h 55m 04.26s +16° 44' 20.3"
 
 
 
 
WDS 18551+1644 WFC 216 (HD 175512) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18551+1644 WFC 216 distance=0' 18567+1657 BPM 899 distance=28' 18561+1709 BPM 894 distance=29' 18573+1644 BPM 903 distance=32' 18564+1710 BPM 897 distance=32' 18551+1717 COU 721AB distance=33' 18551+1717 COU 721AC distance=33' 18535+1619 HEI 263 distance=34' 18525+1644 BPM 875 distance=37' 18539+1719 LDS5868 distance=40' 18521+1635 BPM 871 distance=44' 18582+1644 BPM 911 distance=45' 18583+1654 BPMA 72 distance=47' 18520+1705 COU 720 distance=50' 18573+1724 BPM 904 distance=51' 18586+1653 BPM 916 distance=52' 18583+1705 BPM 912 distance=52' 18565+1555 J 1278AB distance=53' 18565+1555 J 1278AC distance=53' 18515+1700 BPMA 65 distance=54' 18586+1703 BPMA 73 distance=54' 18533+1557 BPM 879 distance=55' 18568+1733 BPM 901 distance=55' 18582+1614 RAO 403 distance=55' 18533+1737 BPM 878 distance=59' 18582+1722 CHR 82Aa,Ab distance=59' 18582+1722 HO 91AB distance=59' 18582+1722 CIA 14Aa1,2 distance=59' 18582+1722 KRV 25AC distance=59' 18577+1731 BPM 908 distance=60' 18566+1545 BPM 898 distance=63' 18569+1546 L 42 distance=65' 18595+1631 BPM 918 distance=65' 18517+1600 BPM 870 distance=67' 18551+1537 BPM 887 distance=68' 18551+1753 KPP 872 distance=69' 18503+1626 BPM 859 distance=71' 18597+1615 TOK 622AB distance=73' 18597+1615 TOK 622AC distance=73' 18597+1615 SOZ 25AD distance=73' 18570+1752 BPM 902 distance=74' 18538+1756 BPM 881 distance=74' 18580+1543 BPM 910 distance=75' 18498+1639 BPM 853 distance=77' 18497+1629 BRT1311 distance=80' 19005+1657 BPM 922 distance=80' 18502+1603 RAO 399 distance=82' 18496+1621 BPM 849 distance=82' 18573+1800 BPMA 70 distance=83' 18551+1522 BPMA 68 distance=83' 18504+1554 BPM 860 distance=84' 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 18551+1644 WFC 216 88 12.0
Show 18567+1657 BPM 899 142 109.6 28
Show 18561+1709 BPM 894 18 95.9 29
Show 18573+1644 BPM 903 24 112.7 32
Show 18564+1710 BPM 897 82 98.9 32
Show 18551+1717 COU 721 AB 302 3.3 33
Show 18551+1717 COU 721 AC 149 17.5 33
Show 18535+1619 HEI 263 353 6.3 34
Show 18525+1644 BPM 875 352 114.0 37
Show 18539+1719 LDS5868 158 10.3 40
Show 18521+1635 BPM 871 188 76.6 44
Show 18582+1644 BPM 911 268 117.4 45
Show 18583+1654 BPMA 72 101 258.7 47
Show 18520+1705 COU 720 194 4.5 50
Show 18573+1724 BPM 904 310 76.7 51
Show 18586+1653 BPM 916 277 31.5 52
Show 18583+1705 BPM 912 44 94.6 52
Show 18565+1555 J 1278 AB 98 2.3 53
Show 18565+1555 J 1278 AC 106 26.2 53
Show 18515+1700 BPMA 65 297 191.5 54
Show 18586+1703 BPMA 73 224 284.4 54
Show 18533+1557 BPM 879 224 33.0 55
Show 18568+1733 BPM 901 96 73.6 55
Show 18582+1614 RAO 403 168 0.4 55
Show 18533+1737 BPM 878 78 38.6 59
Show 18582+1722 CHR 82 Aa,Ab 157 0.2 59
Show 18582+1722 HO 91 AB 146 7.0 59
Show 18582+1722 CIA 14 Aa1,2 352 0.0 59
Show 18582+1722 KRV 25 AC 79 96.0 59
Show 18577+1731 BPM 908 149 76.0 60
Show 18566+1545 BPM 898 20 61.1 63
Show 18569+1546 L 42 35 1.8 65
Show 18595+1631 BPM 918 328 105.2 65
Show 18517+1600 BPM 870 335 90.7 67
Show 18551+1537 BPM 887 40 68.2 68
Show 18551+1753 KPP 872 36 7.3 69
Show 18503+1626 BPM 859 264 110.0 71
Show 18597+1615 TOK 622 AB 267 999.9 73
Show 18597+1615 TOK 622 AC 218 999.9 73
Show 18597+1615 SOZ 25 AD 208 18.4 73
Show 18570+1752 BPM 902 118 83.4 74
Show 18538+1756 BPM 881 2 55.4 74
Show 18580+1543 BPM 910 205 62.8 75
Show 18498+1639 BPM 853 163 102.8 77
Show 18497+1629 BRT1311 204 4.3 80
Show 19005+1657 BPM 922 147 47.0 80
Show 18502+1603 RAO 399 140 2.8 82
Show 18496+1621 BPM 849 245 101.4 82
Show 18573+1800 BPMA 70 232 243.7 83
Show 18551+1522 BPMA 68 245 229.1 83
Show 18504+1554 BPM 860 174 80.3 84

 
 
WDS 18551+1644 : COMPONENTS
 
 
  A
B pa=87.9°
sep=11.52"
 
 
18551+1644 A
 
 
Componente originario normalizzato AB Name HD 175512 Coord arcsec 2000 185504.26+164420.3 Mag 9.07
Spectral class A2 (white) PmRA 0.00 PmDE -16.0 SAO 104255
Tycho2 1584-03164-1 HD 175512 DM BD+16 3666
Tycho2
Tycho2 1584-03164-1 Pflag RAmdeg 283.76774456 DEmdeg 16.73896471
PmRA 2.0 PmDE -16.0 E RAmdeg 9 E DEmdeg 8
E pmRA 1.3 E pmDE 1.2 EpRAm 1990.76 EpDEm 1991.00
Num 6 Q RAmdeg 1.3 Q DEmdeg 0.9 Q pmRA 1.2
Q pmDE 0.8 BTmag 9.364 E BTmag 0.019 VTmag 9.074
E VTmag 0.016 Prox 121 TYC T HIP
CCDM RAdeg 283.76773972 DEdeg 16.73900222 EpRA 1990 1.43
EpDE 1990 1.59 E RAdeg 8.9 E DEdeg 8.0 Posflg
Corr -0.3
SAO
SAO 104255 DelFlag RA1950 PmRA1950 -0.0003
DE1950 PmDE1950 -0.016 Vmag 9 SpType A2
Double code Source 28 CatNum 7092 DM BD+16 3666
DMcomp BDsup HD 175512 M HD 0
GC RA1950rad 4.94291578 DE1950rad 0.2910201 PmRA2000 -0.0002
PmDE2000 -0.016
 
 
18551+1644 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185505.06+164420.7 Mag 9.55 PmRA 0.00
PmDE -11.0 SAO 104256 Tycho2 1584-03163-1 HD 230042
DM BD+16 3667 Calc delta mag 0.48 Calc coord yes
Tycho2
Tycho2 1584-03163-1 Pflag RAmdeg 283.77123336 DEmdeg 16.73902203
PmRA -3.4 PmDE -10.3 E RAmdeg 13 E DEmdeg 11
E pmRA 1.3 E pmDE 1.2 EpRAm 1990.02 EpDEm 1990.52
Num 6 Q RAmdeg 0.3 Q DEmdeg 0.7 Q pmRA 0.3
Q pmDE 0.7 BTmag 9.715 E BTmag 0.021 VTmag 9.547
E VTmag 0.021 Prox 121 TYC T HIP
CCDM RAdeg 283.77124222 DEdeg 16.73904611 EpRA 1990 1.40
EpDE 1990 1.63 E RAdeg 12.6 E DEdeg 10.5 Posflg D
Corr -0.3
SAO
SAO 104256 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 -0.005 Vmag 9.3 SpType A5
Double code Source 28 CatNum 7093 DM BD+16 3667
DMcomp BDsup HD 230042 M HD 0
GC RA1950rad 4.94297784 DE1950rad 0.29101837 PmRA2000 0.0002
PmDE2000 -0.005