stampa
Login

Want to manage your own lists?
Create your account here!


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
18257-2102
HLD 144 AC


Nearby doubles
8' : 18259-2053
BRT1537

14' : 18264-2111
ARA1534

31' : 18254-2033
JC 6

32' : 18278-2052
ARA1151

37' : 18239-2129
BRT1535

38' : 18282-2114
HJ 2832

38' : 18281-2048
RSS 32

40' : 18230-2115
ARA1529

42' : 18236-2133
RST5112

44' : 18261-2019
SKF 101

44' : 18254-2146
ARA1533

45' : 18273-2140
HU 239

45' : 18239-2139
BRT1536

47' : 18280-2135
HU 240

49' : 18289-2122
HU 241AB

51' : 18234-2143
ARA1530

53' : 18247-2012
OCC 409

57' : 18273-2154
ARA1535

57' : 18288-2138
HU 242

59' : 18216-2052
BRT1530

64' : 18223-2018
BHA 27

65' : 18231-2009
DON 897

66' : 18220-2143
ARA1528

67' : 18296-2138
ARA1536

70' : 18258-1953
ARA 750

72' : 18302-2135
ARA1537



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.

18257-2102 HLD 144 AC

 
 
18h 25m 39.08s -21° 02' 17.5" P.A. 281.00 sep 68.8 mag 9.20,12.60 Sp A3/5II
 
 
Coord 2000 18257-2102 Discov num HLD 144 Comp AC Coord arcsec 2000 18 25 39.08 -21 02 17.5
Date first 1909 Date last 2015 Obs 4
Pa first 280 Pa last 280.8 P.A. Now (θ) 280.8°
Sep first 67.6 Sep last 68.832 Sep. Now (ρ) 68.832"
Mag pri 9.20 Mag sec 12.60 delta mag (ΔM) 3.4 Spectral class A3/5II (white)
Pri motion ra +013 Sec motion ra +002
Pri motion dec -036 Sec motion dec +006
Notes
rPM=1.134
This double is not physical.
 
 
18257-2102 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 169475 18 25 39 -21 02 18 HLD 144 AB 2015 15 42 2.8 9.20 9.13 0.07
Show 18 25 39 -21 02 18 HLD 144 AC 2015 4 281 68.8 9.20 12.60 3.40 <===
Show 18 25 34 -21 02 06 HLD 144 CD 2015 5 159 7.5 11.50 11.80 0.30
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 6278-01761-1 Gaia DR2 4091112999846349312
 
 
WDS 18257-2102 HLD 144 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hld1874 Ma - Holden, E.S. .
Hld1874 Washington Observations, 1874
Hld1875 Ma - Holden, E.S. .
Hld1875 Washington Observations, 1875
Hld1875b Ma j Holden, E.S. & Newcomb, S. 1875AN.....86..321H
Hld1875b AN 86, 321, 1875
Hld1875c Ma j Holden, E.S. 1875AN.....86..321H
Hld1875c AN 86, 321, 1875
Hld1876 Ma - Holden, E.S. .
Hld1876 Washington Observations, 1876
Hld1876b Ma j Holden, E.S. 1876AN.....88..131H
Hld1876b AN 88, 131, 1876
Hld1877 Ma - Holden, E.S. 1877AN.....90..161H
Hld1877 AN 90, 161, 1877
Hld1877b Ma j Holden, E.S. 1877AN.....90..161H
Hld1877b AN 90, 161, 1877
Hld1878 Ma - Holden, E.S. .
Hld1878 Washington Observations, 1878
Hld1878b Ma j Holden, E.S. 1878AN.....93...65H
Hld1878b AN 93, 65, 1878 (data also in Hld1878)
Hld1879 Ma - Holden, E.S. .
Hld1879 Washington Observations, 1879
Hld1879b Ma j Holden, E.S. 1879AN.....95..329H
Hld1879b AN 95, 329, 1879 (data also in Hld1879)
Hld1880 Ma - Holden, E.S. .
Hld1880 Washington Observations, 1880
Hld1880b Ma j Holden, E.S. 1880AN.....97..319H
Hld1880b AN 97, 319, 1880 (data also in Hld1880)
Hld1881 Ma - Holden, E.S. .
Hld1881 Washington Observations, 1881
Hld1881b Ma j Holden, E.S. 1881MNRAS..41..416.
Hld1881b MNRAS 41, 416, 1881
Hld1882 Ma - Holden, E.S. 1882PWasO...1...77H
Hld1882 Pub. Washburn Obs. 1, 77, 1882 (see Pub. Lick Obs. 2, 1894) 1894PLicO...2.....B
Hld1884 Ma - Holden, E.S. 1884PWasO...2...97H
Hld1884 Pub. Washburn Obs. 2, 97, 1884
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18257-2102 HLD 144 AC 1998 2 280 69.1 9.20 11.50 A3/5II D 182539.08-210217.5
18257-2102 HLD 144 AC 1999 3 279 69.7 9.20 11.50 A3/5II D 182539.08-210217.5
18257-2102 HLD 144 AC 2015 4 281 68.8 9.20 12.60 A3/5II 182539.08-210217.5

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

 
 
WDS 18257-2102 HLD 144 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18257-2102 HLD 144 AC : MEASURES
 
 
No records found.

 
 
WDS 18257-2102 : VIRTUAL EYEPIECE
 
 

18257-2102 HLD 144A mag 9.2 Sp A3/5II 18257-2102 HLD 144B sep 2.7 P.A. 40.30 mag 9.13 18257-2102 HLD 144C sep 69.4 P.A. 279.50 mag 11.5 18257-2102 HLD 144D sep 66.1 P.A. 273.80 mag 11.8 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 18257-2102 : ALADIN DSS IMAGE @ 18h 25m 39.08s -21° 02' 17.5"
 
 
 
 
WDS 18257-2102 HLD 144 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18257-2102 HLD 144AB distance=1' 18257-2102 HLD 144AC distance=1' 18257-2102 HLD 144CD distance=2' 18259-2053 BRT1537 distance=8' 18264-2111 ARA1534 distance=14' 18254-2033 JC 6 distance=31' 18278-2052 ARA1151 distance=32' 18239-2129 BRT1535 distance=37' 18282-2114 HJ 2832 distance=38' 18281-2048 RSS 32 distance=38' 18230-2115 ARA1529 distance=40' 18236-2133 RST5112 distance=42' 18261-2019 SKF 101 distance=44' 18254-2146 ARA1533 distance=44' 18273-2140 HU 239 distance=45' 18239-2139 BRT1536 distance=45' 18280-2135 HU 240 distance=47' 18289-2122 HU 241AB distance=49' 18289-2122 HU 241AC distance=49' 18234-2143 ARA1530 distance=51' 18247-2012 OCC 409 distance=53' 18273-2154 ARA1535 distance=57' 18288-2138 HU 242 distance=57' 18216-2052 BRT1530 distance=59' 18223-2018 BHA 27 distance=64' 18231-2009 DON 897 distance=65' 18220-2143 ARA1528 distance=66' 18296-2138 ARA1536 distance=67' 18258-1953 ARA 750 distance=70' 18302-2135 ARA1537 distance=72' 18237-2209 BRT1534 distance=73' 18224-2201 ARA1878 distance=74' 18224-2202 ARA1877 distance=75' 18203-2055 BRT1529 distance=76' 18306-2133 ARA1538 distance=77' 18258-2220 ARA1887 distance=78' 18246-1944 OCC 459 distance=80' 18217-2203 ARA1874 distance=82' 18226-2213 BRT1532 distance=84' 18314-2124 ARA1539 distance=84' 18209-2004 ARA1148AB distance=89' 18315-2138 ARA1540 distance=90' 18242-1935 BU 49AB distance=91' 18242-1935 BU 49AC distance=91' 18242-1935 BU 49AD distance=91' 18237-1936 ARA 746 distance=91' 18321-2040 ARA1152 distance=93' 18282-2227 ARA1889 distance=93' 18281-2228 ARA1888 distance=93' 18209-1956 RST3177 distance=95' 18190-2118 ARA1526 distance=95' 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 18257-2102 HLD 144 AB 42 2.8 1
Show 18257-2102 HLD 144 AC 281 68.8 1
Show 18257-2102 HLD 144 CD 159 7.5 2
Show 18259-2053 BRT1537 284 3.4 8
Show 18264-2111 ARA1534 270 13.2 14
Show 18254-2033 JC 6 280 1.7 31
Show 18278-2052 ARA1151 40 16.1 32
Show 18239-2129 BRT1535 307 4.5 37
Show 18282-2114 HJ 2832 21 23.1 38
Show 18281-2048 RSS 32 223 45.7 38
Show 18230-2115 ARA1529 307 11.8 40
Show 18236-2133 RST5112 25 0.3 42
Show 18261-2019 SKF 101 35 2.9 44
Show 18254-2146 ARA1533 336 13.3 44
Show 18273-2140 HU 239 185 3.1 45
Show 18239-2139 BRT1536 71 3.5 45
Show 18280-2135 HU 240 35 4.7 47
Show 18289-2122 HU 241 AB 34 4.1 49
Show 18289-2122 HU 241 AC 301 63.0 49
Show 18234-2143 ARA1530 101 14.5 51
Show 18247-2012 OCC 409 -1 0.0 53
Show 18273-2154 ARA1535 38 11.4 57
Show 18288-2138 HU 242 279 1.2 57
Show 18216-2052 BRT1530 337 5.5 59
Show 18223-2018 BHA 27 236 7.0 64
Show 18231-2009 DON 897 129 1.6 65
Show 18220-2143 ARA1528 298 16.6 66
Show 18296-2138 ARA1536 147 15.5 67
Show 18258-1953 ARA 750 112 3.6 70
Show 18302-2135 ARA1537 77 13.4 72
Show 18237-2209 BRT1534 117 4.7 73
Show 18224-2201 ARA1878 264 12.4 74
Show 18224-2202 ARA1877 255 9.0 75
Show 18203-2055 BRT1529 281 4.2 76
Show 18306-2133 ARA1538 255 9.4 77
Show 18258-2220 ARA1887 187 6.0 78
Show 18246-1944 OCC 459 -1 2.5 80
Show 18217-2203 ARA1874 288 9.6 82
Show 18226-2213 BRT1532 245 5.8 84
Show 18314-2124 ARA1539 4 5.0 84
Show 18209-2004 ARA1148 AB 310 11.1 89
Show 18315-2138 ARA1540 10 14.8 90
Show 18242-1935 BU 49 AB 45 8.2 91
Show 18242-1935 BU 49 AC 304 22.4 91
Show 18242-1935 BU 49 AD 149 23.4 91
Show 18237-1936 ARA 746 280 12.9 91
Show 18321-2040 ARA1152 134 14.5 93
Show 18282-2227 ARA1889 9 9.0 93
Show 18281-2228 ARA1888 250 13.7 93
Show 18209-1956 RST3177 326 1.3 95
Show 18190-2118 ARA1526 314 12.7 95

 
 
WDS 18257-2102 : COMPONENTS
 
 
  A B C
B pa=40.3°
sep=2.71"
 
C pa=279.5°
sep=69.40"
pa=277.6°
sep=70.83"
 
D pa=273.8°
sep=66.10"
pa=272.0°
sep=67.75"
pa=160.3°
sep=7.43"
 
 
18257-2102 A
 
 
Name HD 169475 Coord arcsec 2000 182539.08-210217.5 Mag 9.2 Spectral class A3/5II (white)
PmRA 9.00 PmDE -23.0 Tycho2 6278-01761-1
Tycho2
Tycho2 6278-01761-1 Pflag P RAmdeg 276.41285492 DEmdeg -21.03820628
PmRA 9.2 PmDE -22.9 E RAmdeg 13 E DEmdeg 17
E pmRA 2.7 E pmDE 2.8 EpRAm 1991.24 EpDEm 1990.88
Num 5 Q RAmdeg 2.2 Q DEmdeg 2.4 Q pmRA 2.3
Q pmDE 2.4 BTmag 9.566 E BTmag 0.036 VTmag 9.204
E VTmag 0.033 Prox 28 TYC T HIP
CCDM RAdeg 276.41254500 DEdeg -21.03844722 EpRA 1990 1.68
EpDE 1990 1.59 E RAdeg 18.5 E DEdeg 25.4 Posflg
Corr 0.4
 
 
18257-2102 B
 
 
Coord arcsec 2000 182539.21-210215.4 Mag 9.13 PmRA 9.00 PmDE -23.0
Tycho2 6278-01761-2 HD 169475 Calc delta mag 0.07 Calc coord yes
Tycho2
Tycho2 6278-01761-2 Pflag P RAmdeg 276.41285492 DEmdeg -21.03820628
PmRA 9.2 PmDE -22.9 E RAmdeg 13 E DEmdeg 17
E pmRA 2.7 E pmDE 2.8 EpRAm 1991.24 EpDEm 1990.88
Num 5 Q RAmdeg 2.2 Q DEmdeg 2.4 Q pmRA 2.3
Q pmDE 2.4 BTmag 9.548 E BTmag 0.026 VTmag 9.125
E VTmag 0.024 Prox 28 TYC T HIP
CCDM RAdeg 276.41310889 DEdeg -21.03787111 EpRA 1990 1.66
EpDE 1990 1.54 E RAdeg 13.0 E DEdeg 17.2 Posflg D
Corr 0.0
 
 
18257-2102 C
 
 
Coord arcsec 2000 182534.19-210206.1 Coord calc 182534.19-210206.1 Mag 11.5 PmRA 2.00
PmDE 6.0 Calc delta mag 2.3
 
 
18257-2102 D
 
 
Coord arcsec 2000 182534.37-210213.1 Mag 11.8 PmRA -19.00 PmDE 10.0
Calc delta mag 2.6 Calc coord yes