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Doubles in session


Current system
18553-1738
HJ 2844
HD 175278


Nearby doubles
9' : 18549-1733
RST3205AB

9' : 18559-1735
HJ 2845

39' : 18528-1725
HU 257

51' : 18557-1646
J 1661

53' : 18528-1658
J 2238

57' : 18516-1719
HU 255

63' : 18510-1747
HJ 2842

64' : 18560-1637
J 1662

67' : 18562-1843
OCC 964

69' : 18531-1838
HO 569AB

70' : 18593-1658
RST3209

72' : 18555-1626
ARA 112

76' : 18555-1623
SOZ 18

76' : 18506-1813
RST3200

78' : 19002-1704
GWP2801AB

80' : 18505-1818
TDT1081

80' : 18503-1812
TDT1080

82' : 18529-1625
RST4021

83' : 18530-1623
RST4022

84' : 18509-1646
HLD 148

85' : 18494-1740
TDT1072

86' : 18494-1750
HJ 2840

89' : 18551-1609
BRT 634

90' : 18500-1826
J 1658

90' : 18498-1655
TDT4316

91' : 18575-1903
HDS2687



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.

18553-1738 HJ 2844 (HD 175278)

 
 
18h 55m 19.52s -17° 37' 51.4" P.A. 105.00 sep 23.7 mag 9.27,11.21 Sp B6V
 
 
Coord 2000 18553-1738 Discov num HJ 2844 Comp Coord arcsec 2000 18 55 19.52 -17 37 51.4
Date first 1890 Date last 2015 Obs 11
Pa first 106 Pa last 104.6 P.A. Now (θ) 104.6°
Sep first 23.2 Sep last 23.657 Sep. Now (ρ) 23.657"
Mag pri 9.27 Mag sec 11.21 delta mag (ΔM) 1.94 Spectral class B6V (blue-white)
Pri motion ra -002 Sec motion ra +030
Pri motion dec +004 Sec motion dec -028
Notes
rPM=1.103
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 175278 Constellation Sagittarius SAO 161980 Tycho2 6285-03035-1
Gaia DR2 4086959663363013376 HD 175278
 
 
WDS 18553-1738 HJ 2844 (HD 175278) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18553-1738 HJ 2844 1998 8 105 23.7 9.27 11.60 B6V D 185519.52-173751.4
18553-1738 HJ 2844 1999 9 105 23.7 9.27 11.60 B6V D 185519.52-173751.4
18553-1738 HJ 2844 2010 10 105 23.5 9.27 11.21 B6V 185519.52-173751.4
18553-1738 HJ 2844 2015 11 105 23.7 9.27 11.21 B6V 185519.52-173751.4

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

 
 
WDS 18553-1738 HJ 2844 (HD 175278) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18553-1738 HJ 2844 (HD 175278) : MEASURES
 
 
No records found.

 
 
WDS 18553-1738 (HD 175278) : VIRTUAL EYEPIECE
 
 

18553-1738 HJ 2844A mag 9.27 Sp B6V 18553-1738 HJ 2844B sep 22.6 P.A. 105.30 mag 11.21 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 18553-1738 (HD 175278) : ALADIN DSS IMAGE @ 18h 55m 19.52s -17° 37' 51.4"
 
 
 
 
WDS 18553-1738 HJ 2844 (HD 175278) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18553-1738 HJ 2844 distance=0' 18549-1733 RST3205AB distance=9' 18549-1733 HJ 2843AB,C distance=9' 18559-1735 HJ 2845 distance=9' 18528-1725 HU 257 distance=39' 18557-1646 J 1661 distance=51' 18528-1658 J 2238 distance=53' 18516-1719 HU 255 distance=57' 18510-1747 HJ 2842 distance=63' 18560-1637 J 1662 distance=64' 18562-1843 OCC 964 distance=67' 18531-1838 HO 569AB distance=69' 18531-1838 OCC9186Aa,Ab distance=69' 18593-1658 RST3209 distance=70' 18555-1626 ARA 112 distance=72' 18555-1623 SOZ 18 distance=76' 18506-1813 RST3200 distance=76' 19002-1704 GWP2801AB distance=78' 18505-1818 TDT1081 distance=80' 18503-1812 TDT1080 distance=80' 18529-1625 RST4021 distance=82' 18530-1623 RST4022 distance=83' 18509-1646 HLD 148 distance=84' 18494-1740 TDT1072 distance=85' 18494-1750 HJ 2840 distance=86' 18551-1609 BRT 634 distance=89' 18500-1826 J 1658 distance=90' 18498-1655 TDT4316 distance=90' 18575-1903 HDS2687 distance=91' 18496-1654 HWE 44AB distance=93' 18496-1654 HWE 44AC distance=93' 18496-1654 KNP 3AD distance=93' 18498-1836 TDT1075 distance=99' 18526-1909 ARA 764 distance=100' 19020-1705 OCC9061 distance=101' 18487-1702 J 2235AB distance=101' 18487-1702 J 2235BC distance=101' 19019-1818 MRA 26 distance=103' 19016-1841 DYL 29AB distance=110' 19016-1841 DYL 29BC distance=110' 18597-1909 BRT1544 distance=111' 18488-1836 KUI 88 distance=111' 18488-1838 RSS 491 distance=111' 18480-1814 RST3198 distance=111' 18480-1817 WSI 36 distance=112' 18496-1854 OCC 454 distance=113' 18482-1820 J 1636 distance=113' 19034-1749 DON 944 distance=114' 18594-1917 OCC 590 distance=115' 19032-1756 DON 943 distance=116' 19013-1856 ARA 766 distance=116' 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 18553-1738 HJ 2844 105 23.7
Show 18549-1733 RST3205 AB 300 0.5 9
Show 18549-1733 HJ 2843 AB,C 339 22.0 9
Show 18559-1735 HJ 2845 6 3.9 9
Show 18528-1725 HU 257 341 2.1 39
Show 18557-1646 J 1661 98 4.5 51
Show 18528-1658 J 2238 182 4.8 53
Show 18516-1719 HU 255 166 1.4 57
Show 18510-1747 HJ 2842 338 29.9 63
Show 18560-1637 J 1662 191 4.5 64
Show 18562-1843 OCC 964 -1 0.0 67
Show 18531-1838 HO 569 AB 38 15.6 69
Show 18531-1838 OCC9186 Aa,Ab -1 -1.0 69
Show 18593-1658 RST3209 126 0.4 70
Show 18555-1626 ARA 112 176 10.7 72
Show 18555-1623 SOZ 18 142 17.7 76
Show 18506-1813 RST3200 0.7 76
Show 19002-1704 GWP2801 AB 67 307.7 78
Show 18505-1818 TDT1081 75 0.5 80
Show 18503-1812 TDT1080 134 0.9 80
Show 18529-1625 RST4021 118 0.2 82
Show 18530-1623 RST4022 312 0.4 83
Show 18509-1646 HLD 148 30 5.0 84
Show 18494-1740 TDT1072 310 0.7 85
Show 18494-1750 HJ 2840 173 15.2 86
Show 18551-1609 BRT 634 337 3.9 89
Show 18500-1826 J 1658 59 8.4 90
Show 18498-1655 TDT4316 333 45.1 90
Show 18575-1903 HDS2687 346 1.9 91
Show 18496-1654 HWE 44 AB 298 2.0 93
Show 18496-1654 HWE 44 AC 308 36.4 93
Show 18496-1654 KNP 3 AD 200 22.2 93
Show 18498-1836 TDT1075 97 0.5 99
Show 18526-1909 ARA 764 221 10.8 100
Show 19020-1705 OCC9061 254 0.1 101
Show 18487-1702 J 2235 AB 203 90.0 101
Show 18487-1702 J 2235 BC 5 6.6 101
Show 19019-1818 MRA 26 298 0.0 103
Show 19016-1841 DYL 29 AB 71 10.9 110
Show 19016-1841 DYL 29 BC 135 5.9 110
Show 18597-1909 BRT1544 322 2.3 111
Show 18488-1836 KUI 88 153 0.5 111
Show 18488-1838 RSS 491 334 10.8 111
Show 18480-1814 RST3198 154 0.4 111
Show 18480-1817 WSI 36 262 15.8 112
Show 18496-1854 OCC 454 -1 0.1 113
Show 18482-1820 J 1636 78 7.1 113
Show 19034-1749 DON 944 241 0.7 114
Show 18594-1917 OCC 590 -1 0.1 115
Show 19032-1756 DON 943 334 3.7 116
Show 19013-1856 ARA 766 81 7.1 116

 
 
WDS 18553-1738 : COMPONENTS
 
 
  A
B pa=105.3°
sep=22.62"
 
 
18553-1738 A
 
 
Componente originario normalizzato AB Name HD 175278 Coord arcsec 2000 185519.52-173751.4 Mag 9.27
Spectral class B6V (blue-white) PmRA -2.00 PmDE 4.0 SAO 161980
Tycho2 6285-03035-1 HD 175278 DM BD-17 5375
Tycho2
Tycho2 6285-03035-1 Pflag RAmdeg 283.83134528 DEmdeg -17.63096617
PmRA 0.9 PmDE -1.1 E RAmdeg 9 E DEmdeg 11
E pmRA 1.5 E pmDE 1.7 EpRAm 1990.56 EpDEm 1990.08
Num 8 Q RAmdeg 1.4 Q DEmdeg 0.9 Q pmRA 1.5
Q pmDE 0.9 BTmag 9.267 E BTmag 0.020 VTmag 9.274
E VTmag 0.021 Prox 999 TYC T HIP
CCDM RAdeg 283.83134278 DEdeg -17.63096361 EpRA 1990 1.83
EpDE 1990 1.74 E RAdeg 9.4 E DEdeg 12.3 Posflg
Corr 0.1
SAO
SAO 161980 DelFlag RA1950 PmRA1950 0.0011
DE1950 PmDE1950 -0.009 Vmag 9.1 SpType B8
Double code Source 21 CatNum 6988 DM BD-17 5375
DMcomp BDsup HD 175278 M HD 0
GC RA1950rad 4.94110519 DE1950rad -0.30885023 PmRA2000 0.0012
PmDE2000 -0.008
CCDM
Ccdm 18553-1738 RComp Comp A Note1
Note2 Discov num DRAs 1.55 DDEs 8.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.5 Sp B8 PmNote *
PmRA 16 PmDE -9 Dm number -17 5375 Cat1 BD
Name2 161980 Cat2 SAO HD 175278 M HD
ADS BDS B 8891 M ADS BDS N IDS IDS 18495S1745A
HIC
 
 
18553-1738 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185521.05-173757.4 Mag 11.21 PmRA 30.00
PmDE -28.0 Calc delta mag 1.94 Calc coord yes
CCDM
Ccdm 18553-1738 RComp Comp B Note1
Note2 Discov num HJ 2844 DRAs DDEs
R dRAs Year 1890 Theta 106 Rho 23.6
Obs 4 Vmag 11.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 8891 M ADS BDS N IDS IDS 18495S1745B
HIC